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spring-cloud-zookeeper/2.2.0.M3/reference/html/README.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="generator" content="Asciidoctor 1.5.7.1">
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<title>Zookeeper overview</title>
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<link rel="stylesheet" href="css/spring.css">
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</head>
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<body class="book toc2 toc-left">
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<div id="header">
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<div id="toc" class="toc2">
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<div id="toctitle">Table of Contents</div>
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<ul class="sectlevel1">
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<li><a href="#zookeeper-overview">1. Zookeeper overview</a></li>
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||||
<li><a href="#spring-cloud-zookeeper-features">2. Spring Cloud Zookeeper Features</a></li>
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||||
<li><a href="#running-the-sample">3. Running the Sample</a></li>
|
||||
<li><a href="#building">4. Building</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#basic-compile-and-test">4.1. Basic Compile and Test</a></li>
|
||||
<li><a href="#documentation">4.2. Documentation</a></li>
|
||||
<li><a href="#working-with-the-code">4.3. Working with the code</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#contributing">5. Contributing</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#sign-the-contributor-license-agreement">5.1. Sign the Contributor License Agreement</a></li>
|
||||
<li><a href="#code-of-conduct">5.2. Code of Conduct</a></li>
|
||||
<li><a href="#code-conventions-and-housekeeping">5.3. Code Conventions and Housekeeping</a></li>
|
||||
<li><a href="#checkstyle">5.4. Checkstyle</a></li>
|
||||
<li><a href="#ide-setup">5.5. IDE setup</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div id="preamble">
|
||||
<div class="sectionbody">
|
||||
<div class="imageblock">
|
||||
<div class="content">
|
||||
<a class="image" href="https://travis-ci.org/spring-cloud/spring-cloud-zookeeper"><img src="https://travis-ci.org/spring-cloud/spring-cloud-zookeeper.svg?branch=master" alt="Build Status"></a>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
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||||
<p>This project provides Zookeeper integrations for Spring Boot applications through
|
||||
autoconfiguration and binding to the Spring Environment and other Spring programming model
|
||||
idioms. With a few annotations, you can quickly enable and configure the common patterns
|
||||
inside your application and build large distributed systems with Zookeeper based
|
||||
components. The provided patterns include Service Discovery and Configuration. Integration
|
||||
with Spring Cloud Netflix provides Intelligent Routing (Zuul), Client Side Load Balancing
|
||||
(Ribbon), and Circuit Breaker (Hystrix).</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="zookeeper-overview"><a class="anchor" href="#zookeeper-overview"></a><a class="link" href="#zookeeper-overview">1. Zookeeper overview</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>ZooKeeper is a centralized service for maintaining configuration information, naming,
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||||
providing distributed synchronization, and providing group services. See the
|
||||
<a href="https://zookeeper.apache.org">Zookeeper site</a> for more information. Spring Cloud Zookeeper
|
||||
also builds on the <a href="https://curator.apache.org">Apache Curator</a> project, which started life
|
||||
at Netflix.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-features"><a class="anchor" href="#spring-cloud-zookeeper-features"></a><a class="link" href="#spring-cloud-zookeeper-features">2. Spring Cloud Zookeeper Features</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper includes the following features:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p>Spring Cloud <code>DiscoveryClient</code> implementation (supports Ribbon and Zuul)</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Zookeeper-based <code>PropertySource</code> loaded during the 'bootstrap' phase</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="running-the-sample"><a class="anchor" href="#running-the-sample"></a><a class="link" href="#running-the-sample">3. Running the Sample</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="olist arabic">
|
||||
<ol class="arabic">
|
||||
<li>
|
||||
<p><a href="https://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_Download">Install
|
||||
zookeeper</a> (On a mac with homebrew, use <code>brew install zookeeper</code>).</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="https://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_InstallingSingleMode">Start
|
||||
zookeeper</a>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="https://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_ConnectingToZooKeeper">Verify
|
||||
zookeeper is running</a>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Run <code>mvn --settings .settings.xml package</code>.
|
||||
Doing so brings in the required Spring Cloud Maven repositories and Build.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Run <code>java -jar spring-cloud-zookeeper-sample/target/spring-cloud-zookeeper-sample-1.2.0.BUILD-SNAPSHOT.jar</code>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Visit <a href="http://localhost:8080" class="bare">localhost:8080</a> to verify that <code>{"serviceId":"testZookeeperApp","host":"<yourhost>","port":8080}</code> works.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Run <code>java -jar spring-cloud-zookeeper-sample/target/spring-cloud-zookeeper-sample-1.2.0.BUILD-SNAPSHOT.jar --server.port=8081</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Visit <a href="http://localhost:8080" class="bare">localhost:8080</a> again to verify that <code>{"serviceId":"testZookeeperApp","host":"<yourhost>","port":8081}</code> eventually shows up in the results in a round-robin fashion. (It may take a minute or so.)</p>
|
||||
</li>
|
||||
</ol>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="building"><a class="anchor" href="#building"></a><a class="link" href="#building">4. Building</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="sect2">
|
||||
<h3 id="basic-compile-and-test"><a class="anchor" href="#basic-compile-and-test"></a><a class="link" href="#basic-compile-and-test">4.1. Basic Compile and Test</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>To build the source you will need to install JDK 1.7.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud uses Maven for most build-related activities, and you
|
||||
should be able to get off the ground quite quickly by cloning the
|
||||
project you are interested in and typing</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>$ ./mvnw install</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
You can also install Maven (>=3.3.3) yourself and run the <code>mvn</code> command
|
||||
in place of <code>./mvnw</code> in the examples below. If you do that you also
|
||||
might need to add <code>-P spring</code> if your local Maven settings do not
|
||||
contain repository declarations for spring pre-release artifacts.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
Be aware that you might need to increase the amount of memory
|
||||
available to Maven by setting a <code>MAVEN_OPTS</code> environment variable with
|
||||
a value like <code>-Xmx512m -XX:MaxPermSize=128m</code>. We try to cover this in
|
||||
the <code>.mvn</code> configuration, so if you find you have to do it to make a
|
||||
build succeed, please raise a ticket to get the settings added to
|
||||
source control.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>For hints on how to build the project look in <code>.travis.yml</code> if there
|
||||
is one. There should be a "script" and maybe "install" command. Also
|
||||
look at the "services" section to see if any services need to be
|
||||
running locally (e.g. mongo or rabbit). Ignore the git-related bits
|
||||
that you might find in "before_install" since they’re related to setting git
|
||||
credentials and you already have those.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The projects that require middleware generally include a
|
||||
<code>docker-compose.yml</code>, so consider using
|
||||
<a href="https://docs.docker.com/compose/">Docker Compose</a> to run the middeware servers
|
||||
in Docker containers. See the README in the
|
||||
<a href="https://github.com/spring-cloud-samples/scripts">scripts demo
|
||||
repository</a> for specific instructions about the common cases of mongo,
|
||||
rabbit and redis.</p>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
If all else fails, build with the command from <code>.travis.yml</code> (usually
|
||||
<code>./mvnw install</code>).
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="documentation"><a class="anchor" href="#documentation"></a><a class="link" href="#documentation">4.2. Documentation</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>The spring-cloud-build module has a "docs" profile, and if you switch
|
||||
that on it will try to build asciidoc sources from
|
||||
<code>src/main/asciidoc</code>. As part of that process it will look for a
|
||||
<code>README.adoc</code> and process it by loading all the includes, but not
|
||||
parsing or rendering it, just copying it to <code>${main.basedir}</code>
|
||||
(defaults to <code>${basedir}</code>, i.e. the root of the project). If there are
|
||||
any changes in the README it will then show up after a Maven build as
|
||||
a modified file in the correct place. Just commit it and push the change.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="working-with-the-code"><a class="anchor" href="#working-with-the-code"></a><a class="link" href="#working-with-the-code">4.3. Working with the code</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>If you don’t have an IDE preference we would recommend that you use
|
||||
<a href="https://www.springsource.com/developer/sts">Spring Tools Suite</a> or
|
||||
<a href="https://eclipse.org">Eclipse</a> when working with the code. We use the
|
||||
<a href="https://eclipse.org/m2e/">m2eclipse</a> eclipse plugin for maven support. Other IDEs and tools
|
||||
should also work without issue as long as they use Maven 3.3.3 or better.</p>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="importing-into-eclipse-with-m2eclipse"><a class="anchor" href="#importing-into-eclipse-with-m2eclipse"></a><a class="link" href="#importing-into-eclipse-with-m2eclipse">4.3.1. Importing into eclipse with m2eclipse</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>We recommend the <a href="https://eclipse.org/m2e/">m2eclipse</a> eclipse plugin when working with
|
||||
eclipse. If you don’t already have m2eclipse installed it is available from the "eclipse
|
||||
marketplace".</p>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
Older versions of m2e do not support Maven 3.3, so once the
|
||||
projects are imported into Eclipse you will also need to tell
|
||||
m2eclipse to use the right profile for the projects. If you
|
||||
see many different errors related to the POMs in the projects, check
|
||||
that you have an up to date installation. If you can’t upgrade m2e,
|
||||
add the "spring" profile to your <code>settings.xml</code>. Alternatively you can
|
||||
copy the repository settings from the "spring" profile of the parent
|
||||
pom into your <code>settings.xml</code>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="importing-into-eclipse-without-m2eclipse"><a class="anchor" href="#importing-into-eclipse-without-m2eclipse"></a><a class="link" href="#importing-into-eclipse-without-m2eclipse">4.3.2. Importing into eclipse without m2eclipse</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>If you prefer not to use m2eclipse you can generate eclipse project metadata using the
|
||||
following command:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>$ ./mvnw eclipse:eclipse</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The generated eclipse projects can be imported by selecting <code>import existing projects</code>
|
||||
from the <code>file</code> menu.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="contributing"><a class="anchor" href="#contributing"></a><a class="link" href="#contributing">5. Contributing</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud is released under the non-restrictive Apache 2.0 license,
|
||||
and follows a very standard Github development process, using Github
|
||||
tracker for issues and merging pull requests into master. If you want
|
||||
to contribute even something trivial please do not hesitate, but
|
||||
follow the guidelines below.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="sign-the-contributor-license-agreement"><a class="anchor" href="#sign-the-contributor-license-agreement"></a><a class="link" href="#sign-the-contributor-license-agreement">5.1. Sign the Contributor License Agreement</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Before we accept a non-trivial patch or pull request we will need you to sign the
|
||||
<a href="https://cla.pivotal.io/sign/spring">Contributor License Agreement</a>.
|
||||
Signing the contributor’s agreement does not grant anyone commit rights to the main
|
||||
repository, but it does mean that we can accept your contributions, and you will get an
|
||||
author credit if we do. Active contributors might be asked to join the core team, and
|
||||
given the ability to merge pull requests.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="code-of-conduct"><a class="anchor" href="#code-of-conduct"></a><a class="link" href="#code-of-conduct">5.2. Code of Conduct</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>This project adheres to the Contributor Covenant <a href="https://github.com/spring-cloud/spring-cloud-build/blob/master/docs/src/main/asciidoc/code-of-conduct.adoc">code of
|
||||
conduct</a>. By participating, you are expected to uphold this code. Please report
|
||||
unacceptable behavior to <a href="mailto:spring-code-of-conduct@pivotal.io">spring-code-of-conduct@pivotal.io</a>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="code-conventions-and-housekeeping"><a class="anchor" href="#code-conventions-and-housekeeping"></a><a class="link" href="#code-conventions-and-housekeeping">5.3. Code Conventions and Housekeeping</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>None of these is essential for a pull request, but they will all help. They can also be
|
||||
added after the original pull request but before a merge.</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p>Use the Spring Framework code format conventions. If you use Eclipse
|
||||
you can import formatter settings using the
|
||||
<code>eclipse-code-formatter.xml</code> file from the
|
||||
<a href="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-dependencies-parent/eclipse-code-formatter.xml">Spring
|
||||
Cloud Build</a> project. If using IntelliJ, you can use the
|
||||
<a href="https://plugins.jetbrains.com/plugin/6546">Eclipse Code Formatter
|
||||
Plugin</a> to import the same file.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Make sure all new <code>.java</code> files to have a simple Javadoc class comment with at least an
|
||||
<code>@author</code> tag identifying you, and preferably at least a paragraph on what the class is
|
||||
for.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Add the ASF license header comment to all new <code>.java</code> files (copy from existing files
|
||||
in the project)</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Add yourself as an <code>@author</code> to the .java files that you modify substantially (more
|
||||
than cosmetic changes).</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Add some Javadocs and, if you change the namespace, some XSD doc elements.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>A few unit tests would help a lot as well — someone has to do it.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>If no-one else is using your branch, please rebase it against the current master (or
|
||||
other target branch in the main project).</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>When writing a commit message please follow <a href="https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html">these conventions</a>,
|
||||
if you are fixing an existing issue please add <code>Fixes gh-XXXX</code> at the end of the commit
|
||||
message (where XXXX is the issue number).</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="checkstyle"><a class="anchor" href="#checkstyle"></a><a class="link" href="#checkstyle">5.4. Checkstyle</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Build comes with a set of checkstyle rules. You can find them in the <code>spring-cloud-build-tools</code> module. The most notable files under the module are:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">spring-cloud-build-tools/</div>
|
||||
<div class="content">
|
||||
<pre>└── src
|
||||
├── checkstyle
|
||||
│ └── checkstyle-suppressions.xml <i class="conum" data-value="3"></i><b>(3)</b>
|
||||
└── main
|
||||
└── resources
|
||||
├── checkstyle-header.txt <i class="conum" data-value="2"></i><b>(2)</b>
|
||||
└── checkstyle.xml <i class="conum" data-value="1"></i><b>(1)</b></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="colist arabic">
|
||||
<table>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="1"></i><b>1</b></td>
|
||||
<td>Default Checkstyle rules</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="2"></i><b>2</b></td>
|
||||
<td>File header setup</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="3"></i><b>3</b></td>
|
||||
<td>Default suppression rules</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="checkstyle-configuration"><a class="anchor" href="#checkstyle-configuration"></a><a class="link" href="#checkstyle-configuration">5.4.1. Checkstyle configuration</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Checkstyle rules are <strong>disabled by default</strong>. To add checkstyle to your project just define the following properties and plugins.</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">pom.xml</div>
|
||||
<div class="content">
|
||||
<pre><properties>
|
||||
<maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError> <i class="conum" data-value="1"></i><b>(1)</b>
|
||||
<maven-checkstyle-plugin.failsOnViolation>true
|
||||
</maven-checkstyle-plugin.failsOnViolation> <i class="conum" data-value="2"></i><b>(2)</b>
|
||||
<maven-checkstyle-plugin.includeTestSourceDirectory>true
|
||||
</maven-checkstyle-plugin.includeTestSourceDirectory> <i class="conum" data-value="3"></i><b>(3)</b>
|
||||
</properties>
|
||||
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin> <i class="conum" data-value="4"></i><b>(4)</b>
|
||||
<groupId>io.spring.javaformat</groupId>
|
||||
<artifactId>spring-javaformat-maven-plugin</artifactId>
|
||||
</plugin>
|
||||
<plugin> <i class="conum" data-value="5"></i><b>(5)</b>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-checkstyle-plugin</artifactId>
|
||||
</plugin>
|
||||
</plugins>
|
||||
|
||||
<reporting>
|
||||
<plugins>
|
||||
<plugin> <i class="conum" data-value="5"></i><b>(5)</b>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-checkstyle-plugin</artifactId>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</reporting>
|
||||
</build></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="colist arabic">
|
||||
<table>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="1"></i><b>1</b></td>
|
||||
<td>Fails the build upon Checkstyle errors</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="2"></i><b>2</b></td>
|
||||
<td>Fails the build upon Checkstyle violations</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="3"></i><b>3</b></td>
|
||||
<td>Checkstyle analyzes also the test sources</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="4"></i><b>4</b></td>
|
||||
<td>Add the Spring Java Format plugin that will reformat your code to pass most of the Checkstyle formatting rules</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="5"></i><b>5</b></td>
|
||||
<td>Add checkstyle plugin to your build and reporting phases</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you need to suppress some rules (e.g. line length needs to be longer), then it’s enough for you to define a file under <code>${project.root}/src/checkstyle/checkstyle-suppressions.xml</code> with your suppressions. Example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">projectRoot/src/checkstyle/checkstyle-suppresions.xml</div>
|
||||
<div class="content">
|
||||
<pre><?xml version="1.0"?>
|
||||
<!DOCTYPE suppressions PUBLIC
|
||||
"-//Puppy Crawl//DTD Suppressions 1.1//EN"
|
||||
"https://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
|
||||
<suppressions>
|
||||
<suppress files=".*ConfigServerApplication\.java" checks="HideUtilityClassConstructor"/>
|
||||
<suppress files=".*ConfigClientWatch\.java" checks="LineLengthCheck"/>
|
||||
</suppressions></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>It’s advisable to copy the <code>${spring-cloud-build.rootFolder}/.editorconfig</code> and <code>${spring-cloud-build.rootFolder}/.springformat</code> to your project. That way, some default formatting rules will be applied. You can do so by running this script:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-bash hljs" data-lang="bash">$ curl https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/.editorconfig -o .editorconfig
|
||||
$ touch .springformat</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="ide-setup"><a class="anchor" href="#ide-setup"></a><a class="link" href="#ide-setup">5.5. IDE setup</a></h3>
|
||||
<div class="sect3">
|
||||
<h4 id="intellij-idea"><a class="anchor" href="#intellij-idea"></a><a class="link" href="#intellij-idea">5.5.1. Intellij IDEA</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>In order to setup Intellij you should import our coding conventions, inspection profiles and set up the checkstyle plugin.
|
||||
The following files can be found in the <a href="https://github.com/spring-cloud/spring-cloud-build/tree/master/spring-cloud-build-tools">Spring Cloud Build</a> project.</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">spring-cloud-build-tools/</div>
|
||||
<div class="content">
|
||||
<pre>└── src
|
||||
├── checkstyle
|
||||
│ └── checkstyle-suppressions.xml <i class="conum" data-value="3"></i><b>(3)</b>
|
||||
└── main
|
||||
└── resources
|
||||
├── checkstyle-header.txt <i class="conum" data-value="2"></i><b>(2)</b>
|
||||
├── checkstyle.xml <i class="conum" data-value="1"></i><b>(1)</b>
|
||||
└── intellij
|
||||
├── Intellij_Project_Defaults.xml <i class="conum" data-value="4"></i><b>(4)</b>
|
||||
└── Intellij_Spring_Boot_Java_Conventions.xml <i class="conum" data-value="5"></i><b>(5)</b></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="colist arabic">
|
||||
<table>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="1"></i><b>1</b></td>
|
||||
<td>Default Checkstyle rules</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="2"></i><b>2</b></td>
|
||||
<td>File header setup</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="3"></i><b>3</b></td>
|
||||
<td>Default suppression rules</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="4"></i><b>4</b></td>
|
||||
<td>Project defaults for Intellij that apply most of Checkstyle rules</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><i class="conum" data-value="5"></i><b>5</b></td>
|
||||
<td>Project style conventions for Intellij that apply most of Checkstyle rules</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="imageblock">
|
||||
<div class="content">
|
||||
<img src="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/images/intellij-code-style.png" alt="Code style">
|
||||
</div>
|
||||
<div class="title">Figure 1. Code style</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Go to <code>File</code> → <code>Settings</code> → <code>Editor</code> → <code>Code style</code>. There click on the icon next to the <code>Scheme</code> section. There, click on the <code>Import Scheme</code> value and pick the <code>Intellij IDEA code style XML</code> option. Import the <code>spring-cloud-build-tools/src/main/resources/intellij/Intellij_Spring_Boot_Java_Conventions.xml</code> file.</p>
|
||||
</div>
|
||||
<div class="imageblock">
|
||||
<div class="content">
|
||||
<img src="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/images/intellij-inspections.png" alt="Code style">
|
||||
</div>
|
||||
<div class="title">Figure 2. Inspection profiles</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Go to <code>File</code> → <code>Settings</code> → <code>Editor</code> → <code>Inspections</code>. There click on the icon next to the <code>Profile</code> section. There, click on the <code>Import Profile</code> and import the <code>spring-cloud-build-tools/src/main/resources/intellij/Intellij_Project_Defaults.xml</code> file.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Checkstyle</div>
|
||||
<p>To have Intellij work with Checkstyle, you have to install the <code>Checkstyle</code> plugin. It’s advisable to also install the <code>Assertions2Assertj</code> to automatically convert the JUnit assertions</p>
|
||||
</div>
|
||||
<div class="imageblock">
|
||||
<div class="content">
|
||||
<img src="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/images/intellij-checkstyle.png" alt="Checkstyle">
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Go to <code>File</code> → <code>Settings</code> → <code>Other settings</code> → <code>Checkstyle</code>. There click on the <code>+</code> icon in the <code>Configuration file</code> section. There, you’ll have to define where the checkstyle rules should be picked from. In the image above, we’ve picked the rules from the cloned Spring Cloud Build repository. However, you can point to the Spring Cloud Build’s GitHub repository (e.g. for the <code>checkstyle.xml</code> : <code><a href="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle.xml" class="bare">raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle.xml</a></code>). We need to provide the following variables:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>checkstyle.header.file</code> - please point it to the Spring Cloud Build’s, <code>spring-cloud-build-tools/src/main/resources/checkstyle-header.txt</code> file either in your cloned repo or via the <code><a href="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle-header.txt" class="bare">raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle-header.txt</a></code> URL.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>checkstyle.suppressions.file</code> - default suppressions. Please point it to the Spring Cloud Build’s, <code>spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml</code> file either in your cloned repo or via the <code><a href="https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml" class="bare">raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml</a></code> URL.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>checkstyle.additional.suppressions.file</code> - this variable corresponds to suppressions in your local project. E.g. you’re working on <code>spring-cloud-contract</code>. Then point to the <code>project-root/src/checkstyle/checkstyle-suppressions.xml</code> folder. Example for <code>spring-cloud-contract</code> would be: <code>/home/username/spring-cloud-contract/src/checkstyle/checkstyle-suppressions.xml</code>.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="admonitionblock important">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-important" title="Important"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
Remember to set the <code>Scan Scope</code> to <code>All sources</code> since we apply checkstyle rules for production and test sources.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
<script src="js/highlight/highlight.min.js"></script>
|
||||
<script>hljs.initHighlighting()</script>
|
||||
</body>
|
||||
</html>
|
||||
263
spring-cloud-zookeeper/2.2.0.M3/reference/html/appendix.html
Normal file
263
spring-cloud-zookeeper/2.2.0.M3/reference/html/appendix.html
Normal file
@@ -0,0 +1,263 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<meta name="generator" content="Asciidoctor 1.5.7.1">
|
||||
<title>Common application properties</title>
|
||||
<link rel="stylesheet" href="css/spring.css">
|
||||
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
|
||||
|
||||
<style>
|
||||
.hidden {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.switch {
|
||||
border-width: 1px 1px 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
display: inline-block;
|
||||
}
|
||||
|
||||
.switch--item {
|
||||
padding: 10px;
|
||||
background-color: #ffffff;
|
||||
color: #7a2518;
|
||||
display: inline-block;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.switch--item:not(:first-child) {
|
||||
border-width: 0 0 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
}
|
||||
|
||||
.switch--item.selected {
|
||||
background-color: #7a2519;
|
||||
color: #ffffff;
|
||||
}
|
||||
</style>
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js"></script>
|
||||
<script type="text/javascript">
|
||||
function addBlockSwitches() {
|
||||
$('.primary').each(function() {
|
||||
primary = $(this);
|
||||
createSwitchItem(primary, createBlockSwitch(primary)).item.addClass("selected");
|
||||
primary.children('.title').remove();
|
||||
});
|
||||
$('.secondary').each(function(idx, node) {
|
||||
secondary = $(node);
|
||||
primary = findPrimary(secondary);
|
||||
switchItem = createSwitchItem(secondary, primary.children('.switch'));
|
||||
switchItem.content.addClass('hidden');
|
||||
findPrimary(secondary).append(switchItem.content);
|
||||
secondary.remove();
|
||||
});
|
||||
}
|
||||
|
||||
function createBlockSwitch(primary) {
|
||||
blockSwitch = $('<div class="switch"></div>');
|
||||
primary.prepend(blockSwitch);
|
||||
return blockSwitch;
|
||||
}
|
||||
|
||||
function findPrimary(secondary) {
|
||||
candidate = secondary.prev();
|
||||
while (!candidate.is('.primary')) {
|
||||
candidate = candidate.prev();
|
||||
}
|
||||
return candidate;
|
||||
}
|
||||
|
||||
function createSwitchItem(block, blockSwitch) {
|
||||
blockName = block.children('.title').text();
|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
$(addBlockSwitches);
|
||||
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|
||||
|
||||
</head>
|
||||
<body class="book toc2 toc-left">
|
||||
<div id="header">
|
||||
<div id="toc" class="toc2">
|
||||
<div id="toctitle">Table of Contents</div>
|
||||
<ul class="sectlevel1">
|
||||
<li><a href="#common-application-properties">Appendix A: Common application properties</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div class="sect1">
|
||||
<h2 id="common-application-properties"><a class="link" href="#common-application-properties">Appendix A: Common application properties</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Various properties can be specified inside your <code>application.properties</code> file, inside your <code>application.yml</code> file, or as command line switches.
|
||||
This appendix provides a list of common Spring Cloud Zookeeper properties and references to the underlying classes that consume them.</p>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
Property contributions can come from additional jar files on your classpath, so you should not consider this an exhaustive list.
|
||||
Also, you can define your own properties.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<table class="tableblock frame-all grid-all stretch">
|
||||
<colgroup>
|
||||
<col style="width: 33.3333%;">
|
||||
<col style="width: 33.3333%;">
|
||||
<col style="width: 33.3334%;">
|
||||
</colgroup>
|
||||
<thead>
|
||||
<tr>
|
||||
<th class="tableblock halign-left valign-top">Name</th>
|
||||
<th class="tableblock halign-left valign-top">Default</th>
|
||||
<th class="tableblock halign-left valign-top">Description</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.base-sleep-time-ms</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">50</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Initial amount of time to wait between retries.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.block-until-connected-unit</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">The unit of time related to blocking on connection to Zookeeper.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.block-until-connected-wait</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">10</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Wait time to block on connection to Zookeeper.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.connect-string</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">localhost:2181</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Connection string to the Zookeeper cluster.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.default-health-endpoint</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Default health endpoint that will be checked to verify that a dependency is alive.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.dependencies</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Mapping of alias to ZookeeperDependency. From Ribbon perspective the alias is actually serviceID since Ribbon can’t accept nested structures in serviceID.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.dependency-configurations</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.dependency-names</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.enabled</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">true</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.initial-status</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">The initial status of this instance (defaults to {@link StatusConstants#STATUS_UP}).</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.instance-host</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Predefined host with which a service can register itself in Zookeeper. Corresponds to the {code address} from the URI spec.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.instance-id</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Id used to register with zookeeper. Defaults to a random UUID.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.instance-port</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Port to register the service under (defaults to listening port).</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.instance-ssl-port</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Ssl port of the registered service.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.metadata</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Gets the metadata name/value pairs associated with this instance. This information is sent to zookeeper and can be used by other instances.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.order</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">0</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Order of the discovery client used by <code>CompositeDiscoveryClient</code> for sorting available clients.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.register</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">true</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Register as a service in zookeeper.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.root</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">/services</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Root Zookeeper folder in which all instances are registered.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.discovery.uri-spec</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">{scheme}://{address}:{port}</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">The URI specification to resolve during service registration in Zookeeper.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.enabled</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">true</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Is Zookeeper enabled.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.max-retries</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">10</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Max number of times to retry.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.max-sleep-ms</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">500</p></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Max time in ms to sleep on each retry.</p></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.zookeeper.prefix</p></td>
|
||||
<td class="tableblock halign-left valign-top"></td>
|
||||
<td class="tableblock halign-left valign-top"><p class="tableblock">Common prefix that will be applied to all Zookeeper dependencies' paths.</p></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
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|
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|
||||
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|
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</html>
|
||||
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|
||||
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|
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|
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|
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<meta charset="UTF-8">
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|
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
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<meta name="generator" content="Asciidoctor 1.5.7.1">
|
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<title>Spring Cloud Zookeeper</title>
|
||||
<link rel="stylesheet" href="css/spring.css">
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|
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</head>
|
||||
<body class="book toc2 toc-left">
|
||||
<div id="header">
|
||||
<h1>Spring Cloud Zookeeper</h1>
|
||||
<div id="toc" class="toc2">
|
||||
<div id="toctitle">Table of Contents</div>
|
||||
<ul class="sectlevel1">
|
||||
<li><a href="#spring-cloud-zookeeper-install">1. Install Zookeeper</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-discovery">2. Service Discovery with Zookeeper</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#activating">2.1. Activating</a></li>
|
||||
<li><a href="#registering-with-zookeeper">2.2. Registering with Zookeeper</a></li>
|
||||
<li><a href="#using-the-discoveryclient">2.3. Using the DiscoveryClient</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-netflix">3. Using Spring Cloud Zookeeper with Spring Cloud Netflix Components</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#ribbon-with-zookeeper">3.1. Ribbon with Zookeeper</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-service-registry">4. Spring Cloud Zookeeper and Service Registry</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#instance-status">4.1. Instance Status</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies">5. Zookeeper Dependencies</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-using">5.1. Using the Zookeeper Dependencies</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-activating">5.2. Activating Zookeeper Dependencies</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-setting-up">5.3. Setting up Zookeeper Dependencies</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-configuring">5.4. Configuring Spring Cloud Zookeeper Dependencies</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependency-watcher">6. Spring Cloud Zookeeper Dependency Watcher</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#activating-2">6.1. Activating</a></li>
|
||||
<li><a href="#registering-a-listener">6.2. Registering a Listener</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependency-watcher-presence-checker">6.3. Using the Presence Checker</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-config">7. Distributed Configuration with Zookeeper</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#activating-3">7.1. Activating</a></li>
|
||||
<li><a href="#customizing">7.2. Customizing</a></li>
|
||||
<li><a href="#access-control-lists-acls">7.3. Access Control Lists (ACLs)</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div id="preamble">
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>This project provides Zookeeper integrations for Spring Boot applications through
|
||||
autoconfiguration and binding to the Spring Environment and other Spring programming model
|
||||
idioms. With a few annotations, you can quickly enable and configure the common patterns
|
||||
inside your application and build large distributed systems with Zookeeper based
|
||||
components. The provided patterns include Service Discovery and Configuration. Integration
|
||||
with Spring Cloud Netflix provides Intelligent Routing (Zuul), Client Side Load Balancing
|
||||
(Ribbon), and Circuit Breaker (Hystrix).</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-install"><a class="anchor" href="#spring-cloud-zookeeper-install"></a><a class="link" href="#spring-cloud-zookeeper-install">1. Install Zookeeper</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>See the <a href="https://zookeeper.apache.org/doc/current/zookeeperStarted.html">installation
|
||||
documentation</a> for instructions on how to install Zookeeper.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper uses Apache Curator behind the scenes.
|
||||
While Zookeeper 3.5.x is still considered "beta" by the Zookeeper development team,
|
||||
the reality is that it is used in production by many users.
|
||||
However, Zookeeper 3.4.x is also used in production.
|
||||
Prior to Apache Curator 4.0, both versions of Zookeeper were supported via two versions of Apache Curator.
|
||||
Starting with Curator 4.0 both versions of Zookeeper are supported via the same Curator libraries.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>In case you are integrating with version 3.4 you need to change the Zookeeper dependency
|
||||
that comes shipped with <code>curator</code>, and thus <code>spring-cloud-zookeeper</code>.
|
||||
To do so simply exclude that dependency and add the 3.4.x version like shown below.</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">maven</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-xml hljs" data-lang="xml"><dependency>
|
||||
<groupId>org.springframework.cloud</groupId>
|
||||
<artifactId>spring-cloud-starter-zookeeper-all</artifactId>
|
||||
<exclusions>
|
||||
<exclusion>
|
||||
<groupId>org.apache.zookeeper</groupId>
|
||||
<artifactId>zookeeper</artifactId>
|
||||
</exclusion>
|
||||
</exclusions>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.zookeeper</groupId>
|
||||
<artifactId>zookeeper</artifactId>
|
||||
<version>3.4.12</version>
|
||||
<exclusions>
|
||||
<exclusion>
|
||||
<groupId>org.slf4j</groupId>
|
||||
<artifactId>slf4j-log4j12</artifactId>
|
||||
</exclusion>
|
||||
</exclusions>
|
||||
</dependency></code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">gradle</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-groovy hljs" data-lang="groovy">compile('org.springframework.cloud:spring-cloud-starter-zookeeper-all') {
|
||||
exclude group: 'org.apache.zookeeper', module: 'zookeeper'
|
||||
}
|
||||
compile('org.apache.zookeeper:zookeeper:3.4.12') {
|
||||
exclude group: 'org.slf4j', module: 'slf4j-log4j12'
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-discovery"><a class="anchor" href="#spring-cloud-zookeeper-discovery"></a><a class="link" href="#spring-cloud-zookeeper-discovery">2. Service Discovery with Zookeeper</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Service Discovery is one of the key tenets of a microservice based architecture. Trying to
|
||||
hand-configure each client or some form of convention can be difficult to do and can be
|
||||
brittle. <a href="https://curator.apache.org">Curator</a>(A Java library for Zookeeper) provides Service
|
||||
Discovery through a <a href="https://curator.apache.org/curator-x-discovery/">Service Discovery
|
||||
Extension</a>. Spring Cloud Zookeeper uses this extension for service registration and
|
||||
discovery.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="activating"><a class="anchor" href="#activating"></a><a class="link" href="#activating">2.1. Activating</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Including a dependency on
|
||||
<code>org.springframework.cloud:spring-cloud-starter-zookeeper-discovery</code> enables
|
||||
autoconfiguration that sets up Spring Cloud Zookeeper Discovery.</p>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
For web functionality, you still need to include
|
||||
<code>org.springframework.boot:spring-boot-starter-web</code>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="admonitionblock caution">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-caution" title="Caution"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
When working with version 3.4 of Zookeeper you need to change
|
||||
the way you include the dependency as described <a href="#spring-cloud-zookeeper-install">here</a>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="registering-with-zookeeper"><a class="anchor" href="#registering-with-zookeeper"></a><a class="link" href="#registering-with-zookeeper">2.2. Registering with Zookeeper</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>When a client registers with Zookeeper, it provides metadata (such as host and port, ID,
|
||||
and name) about itself.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The following example shows a Zookeeper client:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@SpringBootApplication
|
||||
@RestController
|
||||
public class Application {
|
||||
|
||||
@RequestMapping("/")
|
||||
public String home() {
|
||||
return "Hello world";
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
new SpringApplicationBuilder(Application.class).web(true).run(args);
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
The preceding example is a normal Spring Boot application.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If Zookeeper is located somewhere other than <code>localhost:2181</code>, the configuration must
|
||||
provide the location of the server, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">spring:
|
||||
cloud:
|
||||
zookeeper:
|
||||
connect-string: localhost:2181</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock caution">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-caution" title="Caution"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
If you use <a href="#spring-cloud-zookeeper-config">Spring Cloud Zookeeper Config</a>, the
|
||||
values shown in the preceding example need to be in <code>bootstrap.yml</code> instead of
|
||||
<code>application.yml</code>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The default service name, instance ID, and port (taken from the <code>Environment</code>) are
|
||||
<code>${spring.application.name}</code>, the Spring Context ID, and <code>${server.port}</code>, respectively.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Having <code>spring-cloud-starter-zookeeper-discovery</code> on the classpath makes the app into both
|
||||
a Zookeeper “service” (that is, it registers itself) and a “client” (that is, it can
|
||||
query Zookeeper to locate other services).</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you would like to disable the Zookeeper Discovery Client, you can set
|
||||
<code>spring.cloud.zookeeper.discovery.enabled</code> to <code>false</code>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="using-the-discoveryclient"><a class="anchor" href="#using-the-discoveryclient"></a><a class="link" href="#using-the-discoveryclient">2.3. Using the DiscoveryClient</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud has support for
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign">Feign</a>
|
||||
(a REST client builder),
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/ascii">Spring
|
||||
<code>RestTemplate</code></a> and
|
||||
<a href="https://cloud.spring.io/spring-cloud-commons/reference/html/#loadbalanced-webclient">Spring WebFlux</a>, using logical service names instead of physical URLs.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can also use the <code>org.springframework.cloud.client.discovery.DiscoveryClient</code>, which
|
||||
provides a simple API for discovery clients that is not specific to Netflix, as shown in
|
||||
the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Autowired
|
||||
private DiscoveryClient discoveryClient;
|
||||
|
||||
public String serviceUrl() {
|
||||
List<ServiceInstance> list = discoveryClient.getInstances("STORES");
|
||||
if (list != null && list.size() > 0 ) {
|
||||
return list.get(0).getUri().toString();
|
||||
}
|
||||
return null;
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-netflix"><a class="anchor" href="#spring-cloud-zookeeper-netflix"></a><a class="link" href="#spring-cloud-zookeeper-netflix">3. Using Spring Cloud Zookeeper with Spring Cloud Netflix Components</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Netflix supplies useful tools that work regardless of which <code>DiscoveryClient</code>
|
||||
implementation you use. Feign, Turbine, Ribbon, and Zuul all work with Spring Cloud
|
||||
Zookeeper.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="ribbon-with-zookeeper"><a class="anchor" href="#ribbon-with-zookeeper"></a><a class="link" href="#ribbon-with-zookeeper">3.1. Ribbon with Zookeeper</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper provides an implementation of Ribbon’s <code>ServerList</code>. When you use
|
||||
the <code>spring-cloud-starter-zookeeper-discovery</code>, Ribbon is autoconfigured to use the
|
||||
<code>ZookeeperServerList</code> by default.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-service-registry"><a class="anchor" href="#spring-cloud-zookeeper-service-registry"></a><a class="link" href="#spring-cloud-zookeeper-service-registry">4. Spring Cloud Zookeeper and Service Registry</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper implements the <code>ServiceRegistry</code> interface, letting developers
|
||||
register arbitrary services in a programmatic way.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The <code>ServiceInstanceRegistration</code> class offers a <code>builder()</code> method to create a
|
||||
<code>Registration</code> object that can be used by the <code>ServiceRegistry</code>, as shown in the following
|
||||
example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Autowired
|
||||
private ZookeeperServiceRegistry serviceRegistry;
|
||||
|
||||
public void registerThings() {
|
||||
ZookeeperRegistration registration = ServiceInstanceRegistration.builder()
|
||||
.defaultUriSpec()
|
||||
.address("anyUrl")
|
||||
.port(10)
|
||||
.name("/a/b/c/d/anotherservice")
|
||||
.build();
|
||||
this.serviceRegistry.register(registration);
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="instance-status"><a class="anchor" href="#instance-status"></a><a class="link" href="#instance-status">4.1. Instance Status</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Netflix Eureka supports having instances that are <code>OUT_OF_SERVICE</code> registered with the
|
||||
server. These instances are not returned as active service instances. This is useful for
|
||||
behaviors such as blue/green deployments. (Note that the Curator Service Discovery recipe
|
||||
does not support this behavior.) Taking advantage of the flexible payload has let Spring
|
||||
Cloud Zookeeper implement <code>OUT_OF_SERVICE</code> by updating some specific metadata and then
|
||||
filtering on that metadata in the Ribbon <code>ZookeeperServerList</code>. The <code>ZookeeperServerList</code>
|
||||
filters out all non-null instance statuses that do not equal <code>UP</code>. If the instance status
|
||||
field is empty, it is considered to be <code>UP</code> for backwards compatibility. To change the
|
||||
status of an instance, make a <code>POST</code> with <code>OUT_OF_SERVICE</code> to the <code>ServiceRegistry</code>
|
||||
instance status actuator endpoint, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-sh hljs" data-lang="sh">$ http POST http://localhost:8081/service-registry status=OUT_OF_SERVICE</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
The preceding example uses the <code>http</code> command from <a href="https://httpie.org" class="bare">httpie.org</a>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-dependencies"><a class="anchor" href="#spring-cloud-zookeeper-dependencies"></a><a class="link" href="#spring-cloud-zookeeper-dependencies">5. Zookeeper Dependencies</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>The following topics cover how to work with Spring Cloud Zookeeper dependencies:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-using">Using the Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-activating">Activating Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-setting-up">Setting up Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-configuring">Configuring Spring Cloud Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-using"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-using"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-using">5.1. Using the Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper gives you a possibility to provide dependencies of your application
|
||||
as properties. As dependencies, you can understand other applications that are registered
|
||||
in Zookeeper and which you would like to call through
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign">Feign</a>
|
||||
(a REST client builder),
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/ascii">Spring
|
||||
<code>RestTemplate</code></a> and
|
||||
<a href="https://cloud.spring.io/spring-cloud-commons/reference/html/#loadbalanced-webclient">Spring WebFlux</a>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can also use the Zookeeper Dependency Watchers functionality to control and monitor
|
||||
the state of your dependencies.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-activating"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-activating"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-activating">5.2. Activating Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Including a dependency on
|
||||
<code>org.springframework.cloud:spring-cloud-starter-zookeeper-discovery</code> enables
|
||||
autoconfiguration that sets up Spring Cloud Zookeeper Dependencies. Even if you provide
|
||||
the dependencies in your properties, you can turn off the dependencies. To do so, set the
|
||||
<code>spring.cloud.zookeeper.dependency.enabled</code> property to false (it defaults to <code>true</code>).</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-setting-up"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-setting-up"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-setting-up">5.3. Setting up Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Consider the following example of dependency representation:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">spring.application.name: yourServiceName
|
||||
spring.cloud.zookeeper:
|
||||
dependencies:
|
||||
newsletter:
|
||||
path: /path/where/newsletter/has/registered/in/zookeeper
|
||||
loadBalancerType: ROUND_ROBIN
|
||||
contentTypeTemplate: application/vnd.newsletter.$version+json
|
||||
version: v1
|
||||
headers:
|
||||
header1:
|
||||
- value1
|
||||
header2:
|
||||
- value2
|
||||
required: false
|
||||
stubs: org.springframework:foo:stubs
|
||||
mailing:
|
||||
path: /path/where/mailing/has/registered/in/zookeeper
|
||||
loadBalancerType: ROUND_ROBIN
|
||||
contentTypeTemplate: application/vnd.mailing.$version+json
|
||||
version: v1
|
||||
required: true</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The next few sections go through each part of the dependency one by one. The root property
|
||||
name is <code>spring.cloud.zookeeper.dependencies</code>.</p>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="spring-cloud-zookeeper-dependencies-setting-up-aliases"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-setting-up-aliases"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-setting-up-aliases">5.3.1. Aliases</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Below the root property you have to represent each dependency as an alias. This is due to
|
||||
the constraints of Ribbon, which requires that the application ID be placed in the URL.
|
||||
Consequently, you cannot pass any complex path, suchas <code>/myApp/myRoute/name</code>). The alias
|
||||
is the name you use instead of the <code>serviceId</code> for <code>DiscoveryClient</code>, <code>Feign</code>, or
|
||||
<code>RestTemplate</code>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>In the previous examples, the aliases are <code>newsletter</code> and <code>mailing</code>. The following
|
||||
example shows Feign usage with a <code>newsletter</code> alias:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@FeignClient("newsletter")
|
||||
public interface NewsletterService {
|
||||
@RequestMapping(method = RequestMethod.GET, value = "/newsletter")
|
||||
String getNewsletters();
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="path"><a class="anchor" href="#path"></a><a class="link" href="#path">5.3.2. Path</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>The path is represented by the <code>path</code> YAML property and is the path under which the
|
||||
dependency is registered under Zookeeper. As described in the
|
||||
<a href="#spring-cloud-zookeeper-dependencies-setting-up-aliases">previous section</a>, Ribbon
|
||||
operates on URLs. As a result, this path is not compliant with its requirement.
|
||||
That is why Spring Cloud Zookeeper maps the alias to the proper path.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="load-balancer-type"><a class="anchor" href="#load-balancer-type"></a><a class="link" href="#load-balancer-type">5.3.3. Load Balancer Type</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>The load balancer type is represented by <code>loadBalancerType</code> YAML property.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you know what kind of load-balancing strategy has to be applied when calling this
|
||||
particular dependency, you can provide it in the YAML file, and it is automatically
|
||||
applied. You can choose one of the following load balancing strategies:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p>STICKY: Once chosen, the instance is always called.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>RANDOM: Picks an instance randomly.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>ROUND_ROBIN: Iterates over instances over and over again.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="content-type-template-and-version"><a class="anchor" href="#content-type-template-and-version"></a><a class="link" href="#content-type-template-and-version">5.3.4. <code>Content-Type</code> Template and Version</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>The <code>Content-Type</code> template and version are represented by the <code>contentTypeTemplate</code> and
|
||||
<code>version</code> YAML properties.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you version your API in the <code>Content-Type</code> header, you do not want to add this header
|
||||
to each of your requests. Also, if you want to call a new version of the API, you do not
|
||||
want to roam around your code to bump up the API version. That is why you can provide a
|
||||
<code>contentTypeTemplate</code> with a special <code>$version</code> placeholder. That placeholder will be filled by the value of the
|
||||
<code>version</code> YAML property. Consider the following example of a <code>contentTypeTemplate</code>:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>application/vnd.newsletter.$version+json</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Further consider the following <code>version</code>:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>v1</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The combination of <code>contentTypeTemplate</code> and version results in the creation of a
|
||||
<code>Content-Type</code> header for each request, as follows:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>application/vnd.newsletter.v1+json</pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="default-headers"><a class="anchor" href="#default-headers"></a><a class="link" href="#default-headers">5.3.5. Default Headers</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Default headers are represented by the <code>headers</code> map in YAML.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Sometimes, each call to a dependency requires setting up of some default headers. To not
|
||||
do that in code, you can set them up in the YAML file, as shown in the following example
|
||||
<code>headers</code> section:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">headers:
|
||||
Accept:
|
||||
- text/html
|
||||
- application/xhtml+xml
|
||||
Cache-Control:
|
||||
- no-cache</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>That <code>headers</code> section results in adding the <code>Accept</code> and <code>Cache-Control</code> headers with
|
||||
appropriate list of values in your HTTP request.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="required-dependencies"><a class="anchor" href="#required-dependencies"></a><a class="link" href="#required-dependencies">5.3.6. Required Dependencies</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Required dependencies are represented by <code>required</code> property in YAML.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If one of your dependencies is required to be up when your application boots, you can set
|
||||
the <code>required: true</code> property in the YAML file.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If your application cannot localize the required dependency during boot time, it throws an
|
||||
exception, and the Spring Context fails to set up. In other words, your application cannot
|
||||
start if the required dependency is not registered in Zookeeper.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can read more about Spring Cloud Zookeeper Presence Checker
|
||||
<a href="#spring-cloud-zookeeper-dependency-watcher-presence-checker">later in this document</a>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="stubs"><a class="anchor" href="#stubs"></a><a class="link" href="#stubs">5.3.7. Stubs</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>You can provide a colon-separated path to the JAR containing stubs of the dependency, as
|
||||
shown in the following example:</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><code>stubs: org.springframework:myApp:stubs</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>where:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>org.springframework</code> is the <code>groupId</code>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>myApp</code> is the <code>artifactId</code>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>stubs</code> is the classifier. (Note that <code>stubs</code> is the default value.)</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Because <code>stubs</code> is the default classifier, the preceding example is equal to the following
|
||||
example:</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><code>stubs: org.springframework:myApp</code></p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-configuring"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-configuring"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-configuring">5.4. Configuring Spring Cloud Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>You can set the following properties to enable or disable parts of Zookeeper Dependencies
|
||||
functionalities:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependencies</code>: If you do not set this property, you cannot use
|
||||
Zookeeper Dependencies.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.ribbon.enabled</code> (enabled by default): Ribbon requires
|
||||
either explicit global configuration or a particular one for a dependency. By turning on
|
||||
this property, runtime load balancing strategy resolution is possible, and you can use the
|
||||
<code>loadBalancerType</code> section of the Zookeeper Dependencies. The configuration that needs
|
||||
this property has an implementation of <code>LoadBalancerClient</code> that delegates to the
|
||||
<code>ILoadBalancer</code> presented in the next bullet.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.ribbon.loadbalancer</code> (enabled by default): Thanks to
|
||||
this property, the custom <code>ILoadBalancer</code> knows that the part of the URI passed to Ribbon
|
||||
might actually be the alias that has to be resolved to a proper path in Zookeeper. Without
|
||||
this property, you cannot register applications under nested paths.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.headers.enabled</code> (enabled by default): This property
|
||||
registers a <code>RibbonClient</code> that automatically appends appropriate headers and content
|
||||
types with their versions, as presented in the Dependency configuration. Without this
|
||||
setting, those two parameters do not work.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.resttemplate.enabled</code> (enabled by default): When
|
||||
enabled, this property modifies the request headers of a <code>@LoadBalanced</code>-annotated
|
||||
<code>RestTemplate</code> such that it passes headers and content type with the version set in
|
||||
dependency configuration. Without this setting, those two parameters do not work.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-dependency-watcher"><a class="anchor" href="#spring-cloud-zookeeper-dependency-watcher"></a><a class="link" href="#spring-cloud-zookeeper-dependency-watcher">6. Spring Cloud Zookeeper Dependency Watcher</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>The Dependency Watcher mechanism lets you register listeners to your dependencies. The
|
||||
functionality is, in fact, an implementation of the <code>Observator</code> pattern. When a
|
||||
dependency changes, its state (to either UP or DOWN), some custom logic can be applied.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="activating-2"><a class="anchor" href="#activating-2"></a><a class="link" href="#activating-2">6.1. Activating</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper Dependencies functionality needs to be enabled for you to use the
|
||||
Dependency Watcher mechanism.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="registering-a-listener"><a class="anchor" href="#registering-a-listener"></a><a class="link" href="#registering-a-listener">6.2. Registering a Listener</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>To register a listener, you must implement an interface called
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.DependencyWatcherListener</code> and
|
||||
register it as a bean. The interface gives you one method:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">void stateChanged(String dependencyName, DependencyState newState);</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you want to register a listener for a particular dependency, the <code>dependencyName</code> would
|
||||
be the discriminator for your concrete implementation. <code>newState</code> provides you with
|
||||
information about whether your dependency has changed to <code>CONNECTED</code> or <code>DISCONNECTED</code>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependency-watcher-presence-checker"><a class="anchor" href="#spring-cloud-zookeeper-dependency-watcher-presence-checker"></a><a class="link" href="#spring-cloud-zookeeper-dependency-watcher-presence-checker">6.3. Using the Presence Checker</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Bound with the Dependency Watcher is the functionality called Presence Checker. It lets
|
||||
you provide custom behavior when your application boots, to react according to the state
|
||||
of your dependencies.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The default implementation of the abstract
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.presence.DependencyPresenceOnStartupVerifier</code>
|
||||
class is the
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.presence.DefaultDependencyPresenceOnStartupVerifier</code>,
|
||||
which works in the following way.</p>
|
||||
</div>
|
||||
<div class="olist arabic">
|
||||
<ol class="arabic">
|
||||
<li>
|
||||
<p>If the dependency is marked us <code>required</code> and is not in Zookeeper, when your application
|
||||
boots, it throws an exception and shuts down.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>If the dependency is not <code>required</code>, the
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.presence.LogMissingDependencyChecker</code>
|
||||
logs that the dependency is missing at the <code>WARN</code> level.</p>
|
||||
</li>
|
||||
</ol>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Because the <code>DefaultDependencyPresenceOnStartupVerifier</code> is registered only when there is
|
||||
no bean of type <code>DependencyPresenceOnStartupVerifier</code>, this functionality can be
|
||||
overridden.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-config"><a class="anchor" href="#spring-cloud-zookeeper-config"></a><a class="link" href="#spring-cloud-zookeeper-config">7. Distributed Configuration with Zookeeper</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Zookeeper provides a
|
||||
<a href="https://zookeeper.apache.org/doc/current/zookeeperOver.html#sc_dataModelNameSpace">hierarchical namespace</a>
|
||||
that lets clients store arbitrary data, such as configuration data. Spring Cloud Zookeeper
|
||||
Config is an alternative to the
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-config">Config Server and Client</a>.
|
||||
Configuration is loaded into the Spring Environment during the special “bootstrap”
|
||||
phase. Configuration is stored in the <code>/config</code> namespace by default. Multiple
|
||||
<code>PropertySource</code> instances are created, based on the application’s name and the active
|
||||
profiles, to mimic the Spring Cloud Config order of resolving properties. For example, an
|
||||
application with a name of <code>testApp</code> and with the <code>dev</code> profile has the following property
|
||||
sources created for it:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>config/testApp,dev</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>config/testApp</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>config/application,dev</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>config/application</code></p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The most specific property source is at the top, with the least specific at the bottom.
|
||||
Properties in the <code>config/application</code> namespace apply to all applications that use
|
||||
zookeeper for configuration. Properties in the <code>config/testApp</code> namespace are available
|
||||
only to the instances of the service named <code>testApp</code>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Configuration is currently read on startup of the application. Sending a HTTP <code>POST</code>
|
||||
request to <code>/refresh</code> causes the configuration to be reloaded. Watching the configuration
|
||||
namespace (which Zookeeper supports) is not currently implemented.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="activating-3"><a class="anchor" href="#activating-3"></a><a class="link" href="#activating-3">7.1. Activating</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Including a dependency on
|
||||
<code>org.springframework.cloud:spring-cloud-starter-zookeeper-config</code> enables
|
||||
autoconfiguration that sets up Spring Cloud Zookeeper Config.</p>
|
||||
</div>
|
||||
<div class="admonitionblock caution">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-caution" title="Caution"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
When working with version 3.4 of Zookeeper you need to change
|
||||
the way you include the dependency as described <a href="#spring-cloud-zookeeper-install">here</a>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="customizing"><a class="anchor" href="#customizing"></a><a class="link" href="#customizing">7.2. Customizing</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Zookeeper Config may be customized by setting the following properties:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">bootstrap.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">spring:
|
||||
cloud:
|
||||
zookeeper:
|
||||
config:
|
||||
enabled: true
|
||||
root: configuration
|
||||
defaultContext: apps
|
||||
profileSeparator: '::'</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>enabled</code>: Setting this value to <code>false</code> disables Zookeeper Config.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>root</code>: Sets the base namespace for configuration values.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>defaultContext</code>: Sets the name used by all applications.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>profileSeparator</code>: Sets the value of the separator used to separate the profile name in
|
||||
property sources with profiles.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="access-control-lists-acls"><a class="anchor" href="#access-control-lists-acls"></a><a class="link" href="#access-control-lists-acls">7.3. Access Control Lists (ACLs)</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>You can add authentication information for Zookeeper ACLs by calling the <code>addAuthInfo</code>
|
||||
method of a <code>CuratorFramework</code> bean. One way to accomplish this is to provide your own
|
||||
<code>CuratorFramework</code> bean, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@BoostrapConfiguration
|
||||
public class CustomCuratorFrameworkConfig {
|
||||
|
||||
@Bean
|
||||
public CuratorFramework curatorFramework() {
|
||||
CuratorFramework curator = new CuratorFramework();
|
||||
curator.addAuthInfo("digest", "user:password".getBytes());
|
||||
return curator;
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Consult
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-zookeeper/blob/master/spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ZookeeperAutoConfiguration.java">the ZookeeperAutoConfiguration class</a>
|
||||
to see how the <code>CuratorFramework</code> bean’s default configuration.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Alternatively, you can add your credentials from a class that depends on the existing
|
||||
<code>CuratorFramework</code> bean, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@BoostrapConfiguration
|
||||
public class DefaultCuratorFrameworkConfig {
|
||||
|
||||
public ZookeeperConfig(CuratorFramework curator) {
|
||||
curator.addAuthInfo("digest", "user:password".getBytes());
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The creation of this bean must occur during the boostrapping phase. You can register
|
||||
configuration classes to run during this phase by annotating them with
|
||||
<code>@BootstrapConfiguration</code> and including them in a comma-separated list that you set as the
|
||||
value of the <code>org.springframework.cloud.bootstrap.BootstrapConfiguration</code> property in the
|
||||
<code>resources/META-INF/spring.factories</code> file, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">resources/META-INF/spring.factories</div>
|
||||
<div class="content">
|
||||
<pre>org.springframework.cloud.bootstrap.BootstrapConfiguration=\
|
||||
my.project.CustomCuratorFrameworkConfig,\
|
||||
my.project.DefaultCuratorFrameworkConfig</pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
<script src="js/highlight/highlight.min.js"></script>
|
||||
<script>hljs.initHighlighting()</script>
|
||||
</body>
|
||||
</html>
|
||||
117
spring-cloud-zookeeper/2.2.0.M3/reference/html/intro.html
Normal file
117
spring-cloud-zookeeper/2.2.0.M3/reference/html/intro.html
Normal file
@@ -0,0 +1,117 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<meta name="generator" content="Asciidoctor 1.5.7.1">
|
||||
<title>Untitled</title>
|
||||
<link rel="stylesheet" href="css/spring.css">
|
||||
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
|
||||
|
||||
<style>
|
||||
.hidden {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.switch {
|
||||
border-width: 1px 1px 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
display: inline-block;
|
||||
}
|
||||
|
||||
.switch--item {
|
||||
padding: 10px;
|
||||
background-color: #ffffff;
|
||||
color: #7a2518;
|
||||
display: inline-block;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.switch--item:not(:first-child) {
|
||||
border-width: 0 0 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
}
|
||||
|
||||
.switch--item.selected {
|
||||
background-color: #7a2519;
|
||||
color: #ffffff;
|
||||
}
|
||||
</style>
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js"></script>
|
||||
<script type="text/javascript">
|
||||
function addBlockSwitches() {
|
||||
$('.primary').each(function() {
|
||||
primary = $(this);
|
||||
createSwitchItem(primary, createBlockSwitch(primary)).item.addClass("selected");
|
||||
primary.children('.title').remove();
|
||||
});
|
||||
$('.secondary').each(function(idx, node) {
|
||||
secondary = $(node);
|
||||
primary = findPrimary(secondary);
|
||||
switchItem = createSwitchItem(secondary, primary.children('.switch'));
|
||||
switchItem.content.addClass('hidden');
|
||||
findPrimary(secondary).append(switchItem.content);
|
||||
secondary.remove();
|
||||
});
|
||||
}
|
||||
|
||||
function createBlockSwitch(primary) {
|
||||
blockSwitch = $('<div class="switch"></div>');
|
||||
primary.prepend(blockSwitch);
|
||||
return blockSwitch;
|
||||
}
|
||||
|
||||
function findPrimary(secondary) {
|
||||
candidate = secondary.prev();
|
||||
while (!candidate.is('.primary')) {
|
||||
candidate = candidate.prev();
|
||||
}
|
||||
return candidate;
|
||||
}
|
||||
|
||||
function createSwitchItem(block, blockSwitch) {
|
||||
blockName = block.children('.title').text();
|
||||
content = block.children('.content').first().append(block.next('.colist'));
|
||||
item = $('<div class="switch--item">' + blockName + '</div>');
|
||||
item.on('click', '', content, function(e) {
|
||||
$(this).addClass('selected');
|
||||
$(this).siblings().removeClass('selected');
|
||||
e.data.siblings('.content').addClass('hidden');
|
||||
e.data.removeClass('hidden');
|
||||
});
|
||||
blockSwitch.append(item);
|
||||
return {'item': item, 'content': content};
|
||||
}
|
||||
|
||||
$(addBlockSwitches);
|
||||
</script>
|
||||
|
||||
</head>
|
||||
<body class="book">
|
||||
<div id="header">
|
||||
</div>
|
||||
<div id="content">
|
||||
<div id="preamble">
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>This project provides Zookeeper integrations for Spring Boot applications through
|
||||
autoconfiguration and binding to the Spring Environment and other Spring programming model
|
||||
idioms. With a few annotations, you can quickly enable and configure the common patterns
|
||||
inside your application and build large distributed systems with Zookeeper based
|
||||
components. The provided patterns include Service Discovery and Configuration. Integration
|
||||
with Spring Cloud Netflix provides Intelligent Routing (Zuul), Client Side Load Balancing
|
||||
(Ribbon), and Circuit Breaker (Hystrix).</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
<script src="js/highlight/highlight.min.js"></script>
|
||||
<script>hljs.initHighlighting()</script>
|
||||
</body>
|
||||
</html>
|
||||
2
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/highlight.min.js
vendored
Normal file
2
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/highlight.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
99
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/a11y-dark.min.css
vendored
Normal file
99
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/a11y-dark.min.css
vendored
Normal file
@@ -0,0 +1,99 @@
|
||||
/* a11y-dark theme */
|
||||
/* Based on the Tomorrow Night Eighties theme: https://github.com/isagalaev/highlight.js/blob/master/src/styles/tomorrow-night-eighties.css */
|
||||
/* @author: ericwbailey */
|
||||
|
||||
/* Comment */
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #d4d0ab;
|
||||
}
|
||||
|
||||
/* Red */
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-tag,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class,
|
||||
.hljs-regexp,
|
||||
.hljs-deletion {
|
||||
color: #ffa07a;
|
||||
}
|
||||
|
||||
/* Orange */
|
||||
.hljs-number,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-literal,
|
||||
.hljs-type,
|
||||
.hljs-params,
|
||||
.hljs-meta,
|
||||
.hljs-link {
|
||||
color: #f5ab35;
|
||||
}
|
||||
|
||||
/* Yellow */
|
||||
.hljs-attribute {
|
||||
color: #ffd700;
|
||||
}
|
||||
|
||||
/* Green */
|
||||
.hljs-string,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-addition {
|
||||
color: #abe338;
|
||||
}
|
||||
|
||||
/* Blue */
|
||||
.hljs-title,
|
||||
.hljs-section {
|
||||
color: #00e0e0;
|
||||
}
|
||||
|
||||
/* Purple */
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag {
|
||||
color: #dcc6e0;
|
||||
}
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
background: #2b2b2b;
|
||||
color: #f8f8f2;
|
||||
padding: 0.5em;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
@media screen and (-ms-high-contrast: active) {
|
||||
.hljs-addition,
|
||||
.hljs-attribute,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-bullet,
|
||||
.hljs-comment,
|
||||
.hljs-link,
|
||||
.hljs-literal,
|
||||
.hljs-meta,
|
||||
.hljs-number,
|
||||
.hljs-params,
|
||||
.hljs-string,
|
||||
.hljs-symbol,
|
||||
.hljs-type,
|
||||
.hljs-quote {
|
||||
color: highlight;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag {
|
||||
font-weight: bold;
|
||||
}
|
||||
}
|
||||
89
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/an-old-hope.min.css
vendored
Normal file
89
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/an-old-hope.min.css
vendored
Normal file
@@ -0,0 +1,89 @@
|
||||
/*
|
||||
|
||||
An Old Hope – Star Wars Syntax (c) Gustavo Costa <gusbemacbe@gmail.com>
|
||||
Original theme - Ocean Dark Theme – by https://github.com/gavsiu
|
||||
Based on Jesse Leite's Atom syntax theme 'An Old Hope' – https://github.com/JesseLeite/an-old-hope-syntax-atom
|
||||
|
||||
*/
|
||||
|
||||
/* Death Star Comment */
|
||||
.hljs-comment,
|
||||
.hljs-quote
|
||||
{
|
||||
color: #B6B18B;
|
||||
}
|
||||
|
||||
/* Darth Vader */
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-tag,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class,
|
||||
.hljs-regexp,
|
||||
.hljs-deletion
|
||||
{
|
||||
color: #EB3C54;
|
||||
}
|
||||
|
||||
/* Threepio */
|
||||
.hljs-number,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-literal,
|
||||
.hljs-type,
|
||||
.hljs-params,
|
||||
.hljs-meta,
|
||||
.hljs-link
|
||||
{
|
||||
color: #E7CE56;
|
||||
}
|
||||
|
||||
/* Luke Skywalker */
|
||||
.hljs-attribute
|
||||
{
|
||||
color: #EE7C2B;
|
||||
}
|
||||
|
||||
/* Obi Wan Kenobi */
|
||||
.hljs-string,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-addition
|
||||
{
|
||||
color: #4FB4D7;
|
||||
}
|
||||
|
||||
/* Yoda */
|
||||
.hljs-title,
|
||||
.hljs-section
|
||||
{
|
||||
color: #78BB65;
|
||||
}
|
||||
|
||||
/* Mace Windu */
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag
|
||||
{
|
||||
color: #B45EA4;
|
||||
}
|
||||
|
||||
/* Millenium Falcon */
|
||||
.hljs
|
||||
{
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
background: #1C1D21;
|
||||
color: #c0c5ce;
|
||||
padding: 0.5em;
|
||||
}
|
||||
|
||||
.hljs-emphasis
|
||||
{
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong
|
||||
{
|
||||
font-weight: bold;
|
||||
}
|
||||
@@ -0,0 +1,77 @@
|
||||
/*
|
||||
|
||||
Atom One Dark With support for ReasonML by Gidi Morris, based off work by Daniel Gamage
|
||||
|
||||
Original One Dark Syntax theme from https://github.com/atom/one-dark-syntax
|
||||
|
||||
*/
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
line-height: 1.3em;
|
||||
color: #abb2bf;
|
||||
background: #282c34;
|
||||
border-radius: 5px;
|
||||
}
|
||||
.hljs-keyword, .hljs-operator {
|
||||
color: #F92672;
|
||||
}
|
||||
.hljs-pattern-match {
|
||||
color: #F92672;
|
||||
}
|
||||
.hljs-pattern-match .hljs-constructor {
|
||||
color: #61aeee;
|
||||
}
|
||||
.hljs-function {
|
||||
color: #61aeee;
|
||||
}
|
||||
.hljs-function .hljs-params {
|
||||
color: #A6E22E;
|
||||
}
|
||||
.hljs-function .hljs-params .hljs-typing {
|
||||
color: #FD971F;
|
||||
}
|
||||
.hljs-module-access .hljs-module {
|
||||
color: #7e57c2;
|
||||
}
|
||||
.hljs-constructor {
|
||||
color: #e2b93d;
|
||||
}
|
||||
.hljs-constructor .hljs-string {
|
||||
color: #9CCC65;
|
||||
}
|
||||
.hljs-comment, .hljs-quote {
|
||||
color: #b18eb1;
|
||||
font-style: italic;
|
||||
}
|
||||
.hljs-doctag, .hljs-formula {
|
||||
color: #c678dd;
|
||||
}
|
||||
.hljs-section, .hljs-name, .hljs-selector-tag, .hljs-deletion, .hljs-subst {
|
||||
color: #e06c75;
|
||||
}
|
||||
.hljs-literal {
|
||||
color: #56b6c2;
|
||||
}
|
||||
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute, .hljs-meta-string {
|
||||
color: #98c379;
|
||||
}
|
||||
.hljs-built_in, .hljs-class .hljs-title {
|
||||
color: #e6c07b;
|
||||
}
|
||||
.hljs-attr, .hljs-variable, .hljs-template-variable, .hljs-type, .hljs-selector-class, .hljs-selector-attr, .hljs-selector-pseudo, .hljs-number {
|
||||
color: #d19a66;
|
||||
}
|
||||
.hljs-symbol, .hljs-bullet, .hljs-link, .hljs-meta, .hljs-selector-id, .hljs-title {
|
||||
color: #61aeee;
|
||||
}
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
96
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/atom-one-dark.min.css
vendored
Normal file
96
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/atom-one-dark.min.css
vendored
Normal file
@@ -0,0 +1,96 @@
|
||||
/*
|
||||
|
||||
Atom One Dark by Daniel Gamage
|
||||
Original One Dark Syntax theme from https://github.com/atom/one-dark-syntax
|
||||
|
||||
base: #282c34
|
||||
mono-1: #abb2bf
|
||||
mono-2: #818896
|
||||
mono-3: #5c6370
|
||||
hue-1: #56b6c2
|
||||
hue-2: #61aeee
|
||||
hue-3: #c678dd
|
||||
hue-4: #98c379
|
||||
hue-5: #e06c75
|
||||
hue-5-2: #be5046
|
||||
hue-6: #d19a66
|
||||
hue-6-2: #e6c07b
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
color: #abb2bf;
|
||||
background: #282c34;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #5c6370;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-doctag,
|
||||
.hljs-keyword,
|
||||
.hljs-formula {
|
||||
color: #c678dd;
|
||||
}
|
||||
|
||||
.hljs-section,
|
||||
.hljs-name,
|
||||
.hljs-selector-tag,
|
||||
.hljs-deletion,
|
||||
.hljs-subst {
|
||||
color: #e06c75;
|
||||
}
|
||||
|
||||
.hljs-literal {
|
||||
color: #56b6c2;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-regexp,
|
||||
.hljs-addition,
|
||||
.hljs-attribute,
|
||||
.hljs-meta-string {
|
||||
color: #98c379;
|
||||
}
|
||||
|
||||
.hljs-built_in,
|
||||
.hljs-class .hljs-title {
|
||||
color: #e6c07b;
|
||||
}
|
||||
|
||||
.hljs-attr,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-type,
|
||||
.hljs-selector-class,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-number {
|
||||
color: #d19a66;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-link,
|
||||
.hljs-meta,
|
||||
.hljs-selector-id,
|
||||
.hljs-title {
|
||||
color: #61aeee;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
96
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/atom-one-light.min.css
vendored
Normal file
96
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/atom-one-light.min.css
vendored
Normal file
@@ -0,0 +1,96 @@
|
||||
/*
|
||||
|
||||
Atom One Light by Daniel Gamage
|
||||
Original One Light Syntax theme from https://github.com/atom/one-light-syntax
|
||||
|
||||
base: #fafafa
|
||||
mono-1: #383a42
|
||||
mono-2: #686b77
|
||||
mono-3: #a0a1a7
|
||||
hue-1: #0184bb
|
||||
hue-2: #4078f2
|
||||
hue-3: #a626a4
|
||||
hue-4: #50a14f
|
||||
hue-5: #e45649
|
||||
hue-5-2: #c91243
|
||||
hue-6: #986801
|
||||
hue-6-2: #c18401
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
color: #383a42;
|
||||
background: #fafafa;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #a0a1a7;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-doctag,
|
||||
.hljs-keyword,
|
||||
.hljs-formula {
|
||||
color: #a626a4;
|
||||
}
|
||||
|
||||
.hljs-section,
|
||||
.hljs-name,
|
||||
.hljs-selector-tag,
|
||||
.hljs-deletion,
|
||||
.hljs-subst {
|
||||
color: #e45649;
|
||||
}
|
||||
|
||||
.hljs-literal {
|
||||
color: #0184bb;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-regexp,
|
||||
.hljs-addition,
|
||||
.hljs-attribute,
|
||||
.hljs-meta-string {
|
||||
color: #50a14f;
|
||||
}
|
||||
|
||||
.hljs-built_in,
|
||||
.hljs-class .hljs-title {
|
||||
color: #c18401;
|
||||
}
|
||||
|
||||
.hljs-attr,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-type,
|
||||
.hljs-selector-class,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-number {
|
||||
color: #986801;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-link,
|
||||
.hljs-meta,
|
||||
.hljs-selector-id,
|
||||
.hljs-title {
|
||||
color: #4078f2;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
76
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/dracula.min.css
vendored
Normal file
76
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/dracula.min.css
vendored
Normal file
@@ -0,0 +1,76 @@
|
||||
/*
|
||||
|
||||
Dracula Theme v1.2.0
|
||||
|
||||
https://github.com/zenorocha/dracula-theme
|
||||
|
||||
Copyright 2015, All rights reserved
|
||||
|
||||
Code licensed under the MIT license
|
||||
http://zenorocha.mit-license.org
|
||||
|
||||
@author Éverton Ribeiro <nuxlli@gmail.com>
|
||||
@author Zeno Rocha <hi@zenorocha.com>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #282a36;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-section,
|
||||
.hljs-link {
|
||||
color: #8be9fd;
|
||||
}
|
||||
|
||||
.hljs-function .hljs-keyword {
|
||||
color: #ff79c6;
|
||||
}
|
||||
|
||||
.hljs,
|
||||
.hljs-subst {
|
||||
color: #f8f8f2;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-title,
|
||||
.hljs-name,
|
||||
.hljs-type,
|
||||
.hljs-attribute,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-addition,
|
||||
.hljs-variable,
|
||||
.hljs-template-tag,
|
||||
.hljs-template-variable {
|
||||
color: #f1fa8c;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote,
|
||||
.hljs-deletion,
|
||||
.hljs-meta {
|
||||
color: #6272a4;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-doctag,
|
||||
.hljs-type,
|
||||
.hljs-name,
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
99
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/github.min.css
vendored
Normal file
99
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/github.min.css
vendored
Normal file
@@ -0,0 +1,99 @@
|
||||
/*
|
||||
|
||||
github.com style (c) Vasily Polovnyov <vast@whiteants.net>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
color: #333;
|
||||
background: #f8f8f8;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #998;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-subst {
|
||||
color: #333;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-number,
|
||||
.hljs-literal,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-tag .hljs-attr {
|
||||
color: #008080;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-doctag {
|
||||
color: #d14;
|
||||
}
|
||||
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-selector-id {
|
||||
color: #900;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-subst {
|
||||
font-weight: normal;
|
||||
}
|
||||
|
||||
.hljs-type,
|
||||
.hljs-class .hljs-title {
|
||||
color: #458;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-tag,
|
||||
.hljs-name,
|
||||
.hljs-attribute {
|
||||
color: #000080;
|
||||
font-weight: normal;
|
||||
}
|
||||
|
||||
.hljs-regexp,
|
||||
.hljs-link {
|
||||
color: #009926;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet {
|
||||
color: #990073;
|
||||
}
|
||||
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name {
|
||||
color: #0086b3;
|
||||
}
|
||||
|
||||
.hljs-meta {
|
||||
color: #999;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-deletion {
|
||||
background: #fdd;
|
||||
}
|
||||
|
||||
.hljs-addition {
|
||||
background: #dfd;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
83
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/monokai-sublime.min.css
vendored
Normal file
83
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/monokai-sublime.min.css
vendored
Normal file
@@ -0,0 +1,83 @@
|
||||
/*
|
||||
|
||||
Monokai Sublime style. Derived from Monokai by noformnocontent http://nn.mit-license.org/
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #23241f;
|
||||
}
|
||||
|
||||
.hljs,
|
||||
.hljs-tag,
|
||||
.hljs-subst {
|
||||
color: #f8f8f2;
|
||||
}
|
||||
|
||||
.hljs-strong,
|
||||
.hljs-emphasis {
|
||||
color: #a8a8a2;
|
||||
}
|
||||
|
||||
.hljs-bullet,
|
||||
.hljs-quote,
|
||||
.hljs-number,
|
||||
.hljs-regexp,
|
||||
.hljs-literal,
|
||||
.hljs-link {
|
||||
color: #ae81ff;
|
||||
}
|
||||
|
||||
.hljs-code,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-selector-class {
|
||||
color: #a6e22e;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-name,
|
||||
.hljs-attr {
|
||||
color: #f92672;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-attribute {
|
||||
color: #66d9ef;
|
||||
}
|
||||
|
||||
.hljs-params,
|
||||
.hljs-class .hljs-title {
|
||||
color: #f8f8f2;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-type,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-addition,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable {
|
||||
color: #e6db74;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-deletion,
|
||||
.hljs-meta {
|
||||
color: #75715e;
|
||||
}
|
||||
70
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/monokai.min.css
vendored
Normal file
70
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/monokai.min.css
vendored
Normal file
@@ -0,0 +1,70 @@
|
||||
/*
|
||||
Monokai style - ported by Luigi Maselli - http://grigio.org
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #272822; color: #ddd;
|
||||
}
|
||||
|
||||
.hljs-tag,
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-strong,
|
||||
.hljs-name {
|
||||
color: #f92672;
|
||||
}
|
||||
|
||||
.hljs-code {
|
||||
color: #66d9ef;
|
||||
}
|
||||
|
||||
.hljs-class .hljs-title {
|
||||
color: white;
|
||||
}
|
||||
|
||||
.hljs-attribute,
|
||||
.hljs-symbol,
|
||||
.hljs-regexp,
|
||||
.hljs-link {
|
||||
color: #bf79db;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-bullet,
|
||||
.hljs-subst,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-emphasis,
|
||||
.hljs-type,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-addition,
|
||||
.hljs-variable,
|
||||
.hljs-template-tag,
|
||||
.hljs-template-variable {
|
||||
color: #a6e22e;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote,
|
||||
.hljs-deletion,
|
||||
.hljs-meta {
|
||||
color: #75715e;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-doctag,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-type,
|
||||
.hljs-selector-id {
|
||||
font-weight: bold;
|
||||
}
|
||||
84
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/solarized-light.min.css
vendored
Normal file
84
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/solarized-light.min.css
vendored
Normal file
@@ -0,0 +1,84 @@
|
||||
/*
|
||||
|
||||
Orginal Style from ethanschoonover.com/solarized (c) Jeremy Hull <sourdrums@gmail.com>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #fdf6e3;
|
||||
color: #657b83;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #93a1a1;
|
||||
}
|
||||
|
||||
/* Solarized Green */
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-addition {
|
||||
color: #859900;
|
||||
}
|
||||
|
||||
/* Solarized Cyan */
|
||||
.hljs-number,
|
||||
.hljs-string,
|
||||
.hljs-meta .hljs-meta-string,
|
||||
.hljs-literal,
|
||||
.hljs-doctag,
|
||||
.hljs-regexp {
|
||||
color: #2aa198;
|
||||
}
|
||||
|
||||
/* Solarized Blue */
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class {
|
||||
color: #268bd2;
|
||||
}
|
||||
|
||||
/* Solarized Yellow */
|
||||
.hljs-attribute,
|
||||
.hljs-attr,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-class .hljs-title,
|
||||
.hljs-type {
|
||||
color: #b58900;
|
||||
}
|
||||
|
||||
/* Solarized Orange */
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-subst,
|
||||
.hljs-meta,
|
||||
.hljs-meta .hljs-keyword,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-link {
|
||||
color: #cb4b16;
|
||||
}
|
||||
|
||||
/* Solarized Red */
|
||||
.hljs-built_in,
|
||||
.hljs-deletion {
|
||||
color: #dc322f;
|
||||
}
|
||||
|
||||
.hljs-formula {
|
||||
background: #eee8d5;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
80
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/zenburn.min.css
vendored
Normal file
80
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/highlight/styles/zenburn.min.css
vendored
Normal file
@@ -0,0 +1,80 @@
|
||||
/*
|
||||
|
||||
Zenburn style from voldmar.ru (c) Vladimir Epifanov <voldmar@voldmar.ru>
|
||||
based on dark.css by Ivan Sagalaev
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #3f3f3f;
|
||||
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color: #dcdcdc;
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.hljs-template-variable,
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color: #8f8f8f;
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.hljs-title,
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.hljs-name,
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.hljs-selector-id,
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.hljs-selector-class,
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.hljs-section,
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color: #efef8f;
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.hljs-symbol,
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.hljs-bullet,
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.hljs-link {
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color: #dca3a3;
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.hljs-deletion,
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.hljs-string,
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.hljs-addition,
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.hljs-comment,
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.hljs-quote,
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font-weight: bold;
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|
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107
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/toc.js
Normal file
107
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/toc.js
Normal file
@@ -0,0 +1,107 @@
|
||||
var toctitle = document.getElementById('toctitle');
|
||||
var path = window.location.pathname;
|
||||
if (toctitle != null) {
|
||||
var oldtoc = toctitle.nextElementSibling;
|
||||
var newtoc = document.createElement('div');
|
||||
newtoc.setAttribute('id', 'tocbot');
|
||||
newtoc.setAttribute('class', 'js-toc desktop-toc');
|
||||
oldtoc.setAttribute('class', 'mobile-toc');
|
||||
oldtoc.parentNode.appendChild(newtoc);
|
||||
tocbot.init({
|
||||
contentSelector: '#content',
|
||||
headingSelector: 'h1, h2, h3, h4, h5',
|
||||
positionFixedSelector: 'body',
|
||||
fixedSidebarOffset: 90,
|
||||
smoothScroll: false
|
||||
});
|
||||
if (!path.endsWith("index.html") && !path.endsWith("/")) {
|
||||
var link = document.createElement("a");
|
||||
link.setAttribute("href", "index.html");
|
||||
link.innerHTML = "<span><i class=\"fa fa-chevron-left\" aria-hidden=\"true\"></i></span> Back to index";
|
||||
var block = document.createElement("div");
|
||||
block.setAttribute('class', 'back-action');
|
||||
block.appendChild(link);
|
||||
var toc = document.getElementById('toc');
|
||||
var next = document.getElementById('toctitle').nextElementSibling;
|
||||
toc.insertBefore(block, next);
|
||||
}
|
||||
}
|
||||
|
||||
var headerHtml = '<div id="header-spring">\n' +
|
||||
'<h1>\n' +
|
||||
'<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0" y="0"\n' +
|
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'viewBox="0 0 245.8 45.3" style="enable-background:new 0 0 245.8 45.3;" xml:space="preserve">\n' +
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'<g id="logos">\n' +
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'<g>\n' +
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'<path class="st0" d="M39.4,3.7c-0.6,1.5-1.4,2.8-2.3,4c-3.9-4-9.3-6.4-15.2-6.4c-11.7,0-21.3,9.5-21.3,21.3\n' +
|
||||
'c0,6.2,2.6,11.7,6.8,15.6l0.8,0.7c3.7,3.1,8.5,5,13.7,5c11.2,0,20.4-8.7,21.2-19.8C43.7,18.7,42.1,11.8,39.4,3.7z M10.5,38.3\n' +
|
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'c-0.6,0.8-1.8,0.9-2.6,0.3C7.1,37.9,7,36.8,7.6,36c0.6-0.8,1.8-0.9,2.6-0.3C11,36.4,11.1,37.5,10.5,38.3z M39.3,31.9\n' +
|
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'c-5.2,7-16.5,4.6-23.6,5c0,0-1.3,0.1-2.6,0.3c0,0,0.5-0.2,1.1-0.4c5-1.7,7.4-2.1,10.5-3.7c5.8-3,11.5-9.4,12.7-16.1\n' +
|
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'<g>\n' +
|
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|
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'z"/>\n' +
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|
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|
||||
'</g>\n' +
|
||||
'</g>\n' +
|
||||
'</g>\n' +
|
||||
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|
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'<g>\n' +
|
||||
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|
||||
'c-1,0-1.9-0.5-2.4-1.3v1.1H167.7z M171,32.1c1.5,0,2.3-1.2,2.3-2.8c0-1.6-0.9-2.8-2.3-2.8c-0.9,0-1.8,0.5-2.2,1.2v3.3\n' +
|
||||
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|
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|
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|
||||
'</g>\n' +
|
||||
'</g>\n' +
|
||||
'</g>\n' +
|
||||
'</svg>\n' +
|
||||
'\n' +
|
||||
'</h1>\n' +
|
||||
'</div>';
|
||||
|
||||
var header = document.createElement("div");
|
||||
header.innerHTML = headerHtml;
|
||||
document.body.insertBefore(header, document.body.firstChild);
|
||||
@@ -0,0 +1 @@
|
||||
.toc{overflow-y:auto}.toc>.toc-list{overflow:hidden;position:relative}.toc>.toc-list li{list-style:none}.toc-list{margin:0;padding-left:10px}a.toc-link{color:currentColor;height:100%}.is-collapsible{max-height:1000px;overflow:hidden;transition:all 300ms ease-in-out}.is-collapsed{max-height:0}.is-position-fixed{position:fixed !important;top:0}.is-active-link{font-weight:700}.toc-link::before{background-color:#EEE;content:' ';display:inline-block;height:inherit;left:0;margin-top:-1px;position:absolute;width:2px}.is-active-link::before{background-color:#54BC4B}
|
||||
1
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/tocbot/tocbot.min.js
vendored
Normal file
1
spring-cloud-zookeeper/2.2.0.M3/reference/html/js/tocbot/tocbot.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
105
spring-cloud-zookeeper/2.2.0.M3/reference/html/sagan-boot.html
Normal file
105
spring-cloud-zookeeper/2.2.0.M3/reference/html/sagan-boot.html
Normal file
@@ -0,0 +1,105 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<meta name="generator" content="Asciidoctor 1.5.7.1">
|
||||
<title>Untitled</title>
|
||||
<link rel="stylesheet" href="css/spring.css">
|
||||
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
|
||||
|
||||
<style>
|
||||
.hidden {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.switch {
|
||||
border-width: 1px 1px 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
display: inline-block;
|
||||
}
|
||||
|
||||
.switch--item {
|
||||
padding: 10px;
|
||||
background-color: #ffffff;
|
||||
color: #7a2518;
|
||||
display: inline-block;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.switch--item:not(:first-child) {
|
||||
border-width: 0 0 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
}
|
||||
|
||||
.switch--item.selected {
|
||||
background-color: #7a2519;
|
||||
color: #ffffff;
|
||||
}
|
||||
</style>
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js"></script>
|
||||
<script type="text/javascript">
|
||||
function addBlockSwitches() {
|
||||
$('.primary').each(function() {
|
||||
primary = $(this);
|
||||
createSwitchItem(primary, createBlockSwitch(primary)).item.addClass("selected");
|
||||
primary.children('.title').remove();
|
||||
});
|
||||
$('.secondary').each(function(idx, node) {
|
||||
secondary = $(node);
|
||||
primary = findPrimary(secondary);
|
||||
switchItem = createSwitchItem(secondary, primary.children('.switch'));
|
||||
switchItem.content.addClass('hidden');
|
||||
findPrimary(secondary).append(switchItem.content);
|
||||
secondary.remove();
|
||||
});
|
||||
}
|
||||
|
||||
function createBlockSwitch(primary) {
|
||||
blockSwitch = $('<div class="switch"></div>');
|
||||
primary.prepend(blockSwitch);
|
||||
return blockSwitch;
|
||||
}
|
||||
|
||||
function findPrimary(secondary) {
|
||||
candidate = secondary.prev();
|
||||
while (!candidate.is('.primary')) {
|
||||
candidate = candidate.prev();
|
||||
}
|
||||
return candidate;
|
||||
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|
||||
|
||||
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|
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|
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|
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|
||||
item.on('click', '', content, function(e) {
|
||||
$(this).addClass('selected');
|
||||
$(this).siblings().removeClass('selected');
|
||||
e.data.siblings('.content').addClass('hidden');
|
||||
e.data.removeClass('hidden');
|
||||
});
|
||||
blockSwitch.append(item);
|
||||
return {'item': item, 'content': content};
|
||||
}
|
||||
|
||||
$(addBlockSwitches);
|
||||
</script>
|
||||
|
||||
</head>
|
||||
<body class="book">
|
||||
<div id="header">
|
||||
</div>
|
||||
<div id="content">
|
||||
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
<script src="js/highlight/highlight.min.js"></script>
|
||||
<script>hljs.initHighlighting()</script>
|
||||
</body>
|
||||
</html>
|
||||
173
spring-cloud-zookeeper/2.2.0.M3/reference/html/sagan-index.html
Normal file
173
spring-cloud-zookeeper/2.2.0.M3/reference/html/sagan-index.html
Normal file
@@ -0,0 +1,173 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<meta name="generator" content="Asciidoctor 1.5.7.1">
|
||||
<title>Features</title>
|
||||
<link rel="stylesheet" href="css/spring.css">
|
||||
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
|
||||
|
||||
<style>
|
||||
.hidden {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.switch {
|
||||
border-width: 1px 1px 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
display: inline-block;
|
||||
}
|
||||
|
||||
.switch--item {
|
||||
padding: 10px;
|
||||
background-color: #ffffff;
|
||||
color: #7a2518;
|
||||
display: inline-block;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.switch--item:not(:first-child) {
|
||||
border-width: 0 0 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
}
|
||||
|
||||
.switch--item.selected {
|
||||
background-color: #7a2519;
|
||||
color: #ffffff;
|
||||
}
|
||||
</style>
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js"></script>
|
||||
<script type="text/javascript">
|
||||
function addBlockSwitches() {
|
||||
$('.primary').each(function() {
|
||||
primary = $(this);
|
||||
createSwitchItem(primary, createBlockSwitch(primary)).item.addClass("selected");
|
||||
primary.children('.title').remove();
|
||||
});
|
||||
$('.secondary').each(function(idx, node) {
|
||||
secondary = $(node);
|
||||
primary = findPrimary(secondary);
|
||||
switchItem = createSwitchItem(secondary, primary.children('.switch'));
|
||||
switchItem.content.addClass('hidden');
|
||||
findPrimary(secondary).append(switchItem.content);
|
||||
secondary.remove();
|
||||
});
|
||||
}
|
||||
|
||||
function createBlockSwitch(primary) {
|
||||
blockSwitch = $('<div class="switch"></div>');
|
||||
primary.prepend(blockSwitch);
|
||||
return blockSwitch;
|
||||
}
|
||||
|
||||
function findPrimary(secondary) {
|
||||
candidate = secondary.prev();
|
||||
while (!candidate.is('.primary')) {
|
||||
candidate = candidate.prev();
|
||||
}
|
||||
return candidate;
|
||||
}
|
||||
|
||||
function createSwitchItem(block, blockSwitch) {
|
||||
blockName = block.children('.title').text();
|
||||
content = block.children('.content').first().append(block.next('.colist'));
|
||||
item = $('<div class="switch--item">' + blockName + '</div>');
|
||||
item.on('click', '', content, function(e) {
|
||||
$(this).addClass('selected');
|
||||
$(this).siblings().removeClass('selected');
|
||||
e.data.siblings('.content').addClass('hidden');
|
||||
e.data.removeClass('hidden');
|
||||
});
|
||||
blockSwitch.append(item);
|
||||
return {'item': item, 'content': content};
|
||||
}
|
||||
|
||||
$(addBlockSwitches);
|
||||
</script>
|
||||
|
||||
</head>
|
||||
<body class="book toc2 toc-left">
|
||||
<div id="header">
|
||||
<div id="toc" class="toc2">
|
||||
<div id="toctitle">Table of Contents</div>
|
||||
<ul class="sectlevel1">
|
||||
<li><a href="#features">1. Features</a></li>
|
||||
<li><a href="#quick-start">2. Quick Start</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div id="preamble">
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper provides <a href="http://zookeeper.apache.org/">Apache Zookeeper</a> integrations for Spring Boot apps through autoconfiguration and binding to the Spring Environment and other Spring programming model idioms. With a few simple annotations you can quickly enable and configure the common patterns inside your application and build large distributed systems with Zookeeper. The patterns provided include Service Discovery and Distributed Configuration.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="features"><a class="anchor" href="#features"></a><a class="link" href="#features">1. Features</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p>Service Discovery: instances can be registered with Zookeeper and clients can discover the instances using Spring-managed beans</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Supports Ribbon, the client side load-balancer via Spring Cloud Netflix</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Supports Zuul, a dynamic router and filter via Spring Cloud Netflix</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Distributed Configuration: using Zookeeper as a data store</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="quick-start"><a class="anchor" href="#quick-start"></a><a class="link" href="#quick-start">2. Quick Start</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>As long as Spring Cloud Zookeeper, <a href="http://curator.apache.org/">Apache Curator</a> and the Zookeeper Java Client are on the
|
||||
classpath any Spring Boot application with <code>@EnableDiscoveryClient</code> will try to contact a Zookeeper
|
||||
agent on <code>localhost:2181</code> (the default value of
|
||||
<code>zookeeper.connectString</code>).</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Configuration
|
||||
@EnableAutoConfiguration
|
||||
@EnableDiscoveryClient
|
||||
@RestController
|
||||
public class Application {
|
||||
|
||||
@RequestMapping("/")
|
||||
public String home() {
|
||||
return "Hello World";
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
SpringApplication.run(Application.class, args);
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>A local Zookeeper server must be running. See the <a href="http://zookeeper.apache.org/doc/trunk/zookeeperStarted.html">Zookeeper documentation</a> on how to run a Zookeeper server.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
<script src="js/highlight/highlight.min.js"></script>
|
||||
<script>hljs.initHighlighting()</script>
|
||||
</body>
|
||||
</html>
|
||||
@@ -0,0 +1,986 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<meta name="generator" content="Asciidoctor 1.5.7.1">
|
||||
<title>Spring Cloud Zookeeper</title>
|
||||
<link rel="stylesheet" href="css/spring.css">
|
||||
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
|
||||
|
||||
<style>
|
||||
.hidden {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.switch {
|
||||
border-width: 1px 1px 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
display: inline-block;
|
||||
}
|
||||
|
||||
.switch--item {
|
||||
padding: 10px;
|
||||
background-color: #ffffff;
|
||||
color: #7a2518;
|
||||
display: inline-block;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.switch--item:not(:first-child) {
|
||||
border-width: 0 0 0 1px;
|
||||
border-style: solid;
|
||||
border-color: #7a2518;
|
||||
}
|
||||
|
||||
.switch--item.selected {
|
||||
background-color: #7a2519;
|
||||
color: #ffffff;
|
||||
}
|
||||
</style>
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js"></script>
|
||||
<script type="text/javascript">
|
||||
function addBlockSwitches() {
|
||||
$('.primary').each(function() {
|
||||
primary = $(this);
|
||||
createSwitchItem(primary, createBlockSwitch(primary)).item.addClass("selected");
|
||||
primary.children('.title').remove();
|
||||
});
|
||||
$('.secondary').each(function(idx, node) {
|
||||
secondary = $(node);
|
||||
primary = findPrimary(secondary);
|
||||
switchItem = createSwitchItem(secondary, primary.children('.switch'));
|
||||
switchItem.content.addClass('hidden');
|
||||
findPrimary(secondary).append(switchItem.content);
|
||||
secondary.remove();
|
||||
});
|
||||
}
|
||||
|
||||
function createBlockSwitch(primary) {
|
||||
blockSwitch = $('<div class="switch"></div>');
|
||||
primary.prepend(blockSwitch);
|
||||
return blockSwitch;
|
||||
}
|
||||
|
||||
function findPrimary(secondary) {
|
||||
candidate = secondary.prev();
|
||||
while (!candidate.is('.primary')) {
|
||||
candidate = candidate.prev();
|
||||
}
|
||||
return candidate;
|
||||
}
|
||||
|
||||
function createSwitchItem(block, blockSwitch) {
|
||||
blockName = block.children('.title').text();
|
||||
content = block.children('.content').first().append(block.next('.colist'));
|
||||
item = $('<div class="switch--item">' + blockName + '</div>');
|
||||
item.on('click', '', content, function(e) {
|
||||
$(this).addClass('selected');
|
||||
$(this).siblings().removeClass('selected');
|
||||
e.data.siblings('.content').addClass('hidden');
|
||||
e.data.removeClass('hidden');
|
||||
});
|
||||
blockSwitch.append(item);
|
||||
return {'item': item, 'content': content};
|
||||
}
|
||||
|
||||
$(addBlockSwitches);
|
||||
</script>
|
||||
|
||||
</head>
|
||||
<body class="book toc2 toc-left">
|
||||
<div id="header">
|
||||
<h1>Spring Cloud Zookeeper</h1>
|
||||
<div id="toc" class="toc2">
|
||||
<div id="toctitle">Table of Contents</div>
|
||||
<ul class="sectlevel1">
|
||||
<li><a href="#spring-cloud-zookeeper-install">1. Install Zookeeper</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-discovery">2. Service Discovery with Zookeeper</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#activating">2.1. Activating</a></li>
|
||||
<li><a href="#registering-with-zookeeper">2.2. Registering with Zookeeper</a></li>
|
||||
<li><a href="#using-the-discoveryclient">2.3. Using the DiscoveryClient</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-netflix">3. Using Spring Cloud Zookeeper with Spring Cloud Netflix Components</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#ribbon-with-zookeeper">3.1. Ribbon with Zookeeper</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-service-registry">4. Spring Cloud Zookeeper and Service Registry</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#instance-status">4.1. Instance Status</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies">5. Zookeeper Dependencies</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-using">5.1. Using the Zookeeper Dependencies</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-activating">5.2. Activating Zookeeper Dependencies</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-setting-up">5.3. Setting up Zookeeper Dependencies</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependencies-configuring">5.4. Configuring Spring Cloud Zookeeper Dependencies</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependency-watcher">6. Spring Cloud Zookeeper Dependency Watcher</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#activating-2">6.1. Activating</a></li>
|
||||
<li><a href="#registering-a-listener">6.2. Registering a Listener</a></li>
|
||||
<li><a href="#spring-cloud-zookeeper-dependency-watcher-presence-checker">6.3. Using the Presence Checker</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><a href="#spring-cloud-zookeeper-config">7. Distributed Configuration with Zookeeper</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#activating-3">7.1. Activating</a></li>
|
||||
<li><a href="#customizing">7.2. Customizing</a></li>
|
||||
<li><a href="#access-control-lists-acls">7.3. Access Control Lists (ACLs)</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div id="preamble">
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>This project provides Zookeeper integrations for Spring Boot applications through
|
||||
autoconfiguration and binding to the Spring Environment and other Spring programming model
|
||||
idioms. With a few annotations, you can quickly enable and configure the common patterns
|
||||
inside your application and build large distributed systems with Zookeeper based
|
||||
components. The provided patterns include Service Discovery and Configuration. Integration
|
||||
with Spring Cloud Netflix provides Intelligent Routing (Zuul), Client Side Load Balancing
|
||||
(Ribbon), and Circuit Breaker (Hystrix).</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-install"><a class="anchor" href="#spring-cloud-zookeeper-install"></a><a class="link" href="#spring-cloud-zookeeper-install">1. Install Zookeeper</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>See the <a href="https://zookeeper.apache.org/doc/current/zookeeperStarted.html">installation
|
||||
documentation</a> for instructions on how to install Zookeeper.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper uses Apache Curator behind the scenes.
|
||||
While Zookeeper 3.5.x is still considered "beta" by the Zookeeper development team,
|
||||
the reality is that it is used in production by many users.
|
||||
However, Zookeeper 3.4.x is also used in production.
|
||||
Prior to Apache Curator 4.0, both versions of Zookeeper were supported via two versions of Apache Curator.
|
||||
Starting with Curator 4.0 both versions of Zookeeper are supported via the same Curator libraries.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>In case you are integrating with version 3.4 you need to change the Zookeeper dependency
|
||||
that comes shipped with <code>curator</code>, and thus <code>spring-cloud-zookeeper</code>.
|
||||
To do so simply exclude that dependency and add the 3.4.x version like shown below.</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">maven</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-xml hljs" data-lang="xml"><dependency>
|
||||
<groupId>org.springframework.cloud</groupId>
|
||||
<artifactId>spring-cloud-starter-zookeeper-all</artifactId>
|
||||
<exclusions>
|
||||
<exclusion>
|
||||
<groupId>org.apache.zookeeper</groupId>
|
||||
<artifactId>zookeeper</artifactId>
|
||||
</exclusion>
|
||||
</exclusions>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.zookeeper</groupId>
|
||||
<artifactId>zookeeper</artifactId>
|
||||
<version>3.4.12</version>
|
||||
<exclusions>
|
||||
<exclusion>
|
||||
<groupId>org.slf4j</groupId>
|
||||
<artifactId>slf4j-log4j12</artifactId>
|
||||
</exclusion>
|
||||
</exclusions>
|
||||
</dependency></code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">gradle</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-groovy hljs" data-lang="groovy">compile('org.springframework.cloud:spring-cloud-starter-zookeeper-all') {
|
||||
exclude group: 'org.apache.zookeeper', module: 'zookeeper'
|
||||
}
|
||||
compile('org.apache.zookeeper:zookeeper:3.4.12') {
|
||||
exclude group: 'org.slf4j', module: 'slf4j-log4j12'
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-discovery"><a class="anchor" href="#spring-cloud-zookeeper-discovery"></a><a class="link" href="#spring-cloud-zookeeper-discovery">2. Service Discovery with Zookeeper</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Service Discovery is one of the key tenets of a microservice based architecture. Trying to
|
||||
hand-configure each client or some form of convention can be difficult to do and can be
|
||||
brittle. <a href="https://curator.apache.org">Curator</a>(A Java library for Zookeeper) provides Service
|
||||
Discovery through a <a href="https://curator.apache.org/curator-x-discovery/">Service Discovery
|
||||
Extension</a>. Spring Cloud Zookeeper uses this extension for service registration and
|
||||
discovery.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="activating"><a class="anchor" href="#activating"></a><a class="link" href="#activating">2.1. Activating</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Including a dependency on
|
||||
<code>org.springframework.cloud:spring-cloud-starter-zookeeper-discovery</code> enables
|
||||
autoconfiguration that sets up Spring Cloud Zookeeper Discovery.</p>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
For web functionality, you still need to include
|
||||
<code>org.springframework.boot:spring-boot-starter-web</code>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="admonitionblock caution">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-caution" title="Caution"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
When working with version 3.4 of Zookeeper you need to change
|
||||
the way you include the dependency as described <a href="#spring-cloud-zookeeper-install">here</a>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="registering-with-zookeeper"><a class="anchor" href="#registering-with-zookeeper"></a><a class="link" href="#registering-with-zookeeper">2.2. Registering with Zookeeper</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>When a client registers with Zookeeper, it provides metadata (such as host and port, ID,
|
||||
and name) about itself.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The following example shows a Zookeeper client:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@SpringBootApplication
|
||||
@RestController
|
||||
public class Application {
|
||||
|
||||
@RequestMapping("/")
|
||||
public String home() {
|
||||
return "Hello world";
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
new SpringApplicationBuilder(Application.class).web(true).run(args);
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
The preceding example is a normal Spring Boot application.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If Zookeeper is located somewhere other than <code>localhost:2181</code>, the configuration must
|
||||
provide the location of the server, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">spring:
|
||||
cloud:
|
||||
zookeeper:
|
||||
connect-string: localhost:2181</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock caution">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-caution" title="Caution"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
If you use <a href="#spring-cloud-zookeeper-config">Spring Cloud Zookeeper Config</a>, the
|
||||
values shown in the preceding example need to be in <code>bootstrap.yml</code> instead of
|
||||
<code>application.yml</code>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The default service name, instance ID, and port (taken from the <code>Environment</code>) are
|
||||
<code>${spring.application.name}</code>, the Spring Context ID, and <code>${server.port}</code>, respectively.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Having <code>spring-cloud-starter-zookeeper-discovery</code> on the classpath makes the app into both
|
||||
a Zookeeper “service” (that is, it registers itself) and a “client” (that is, it can
|
||||
query Zookeeper to locate other services).</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you would like to disable the Zookeeper Discovery Client, you can set
|
||||
<code>spring.cloud.zookeeper.discovery.enabled</code> to <code>false</code>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="using-the-discoveryclient"><a class="anchor" href="#using-the-discoveryclient"></a><a class="link" href="#using-the-discoveryclient">2.3. Using the DiscoveryClient</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud has support for
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign">Feign</a>
|
||||
(a REST client builder),
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/ascii">Spring
|
||||
<code>RestTemplate</code></a> and
|
||||
<a href="https://cloud.spring.io/spring-cloud-commons/reference/html/#loadbalanced-webclient">Spring WebFlux</a>, using logical service names instead of physical URLs.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can also use the <code>org.springframework.cloud.client.discovery.DiscoveryClient</code>, which
|
||||
provides a simple API for discovery clients that is not specific to Netflix, as shown in
|
||||
the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Autowired
|
||||
private DiscoveryClient discoveryClient;
|
||||
|
||||
public String serviceUrl() {
|
||||
List<ServiceInstance> list = discoveryClient.getInstances("STORES");
|
||||
if (list != null && list.size() > 0 ) {
|
||||
return list.get(0).getUri().toString();
|
||||
}
|
||||
return null;
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-netflix"><a class="anchor" href="#spring-cloud-zookeeper-netflix"></a><a class="link" href="#spring-cloud-zookeeper-netflix">3. Using Spring Cloud Zookeeper with Spring Cloud Netflix Components</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Netflix supplies useful tools that work regardless of which <code>DiscoveryClient</code>
|
||||
implementation you use. Feign, Turbine, Ribbon, and Zuul all work with Spring Cloud
|
||||
Zookeeper.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="ribbon-with-zookeeper"><a class="anchor" href="#ribbon-with-zookeeper"></a><a class="link" href="#ribbon-with-zookeeper">3.1. Ribbon with Zookeeper</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper provides an implementation of Ribbon’s <code>ServerList</code>. When you use
|
||||
the <code>spring-cloud-starter-zookeeper-discovery</code>, Ribbon is autoconfigured to use the
|
||||
<code>ZookeeperServerList</code> by default.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-service-registry"><a class="anchor" href="#spring-cloud-zookeeper-service-registry"></a><a class="link" href="#spring-cloud-zookeeper-service-registry">4. Spring Cloud Zookeeper and Service Registry</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper implements the <code>ServiceRegistry</code> interface, letting developers
|
||||
register arbitrary services in a programmatic way.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The <code>ServiceInstanceRegistration</code> class offers a <code>builder()</code> method to create a
|
||||
<code>Registration</code> object that can be used by the <code>ServiceRegistry</code>, as shown in the following
|
||||
example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Autowired
|
||||
private ZookeeperServiceRegistry serviceRegistry;
|
||||
|
||||
public void registerThings() {
|
||||
ZookeeperRegistration registration = ServiceInstanceRegistration.builder()
|
||||
.defaultUriSpec()
|
||||
.address("anyUrl")
|
||||
.port(10)
|
||||
.name("/a/b/c/d/anotherservice")
|
||||
.build();
|
||||
this.serviceRegistry.register(registration);
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="instance-status"><a class="anchor" href="#instance-status"></a><a class="link" href="#instance-status">4.1. Instance Status</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Netflix Eureka supports having instances that are <code>OUT_OF_SERVICE</code> registered with the
|
||||
server. These instances are not returned as active service instances. This is useful for
|
||||
behaviors such as blue/green deployments. (Note that the Curator Service Discovery recipe
|
||||
does not support this behavior.) Taking advantage of the flexible payload has let Spring
|
||||
Cloud Zookeeper implement <code>OUT_OF_SERVICE</code> by updating some specific metadata and then
|
||||
filtering on that metadata in the Ribbon <code>ZookeeperServerList</code>. The <code>ZookeeperServerList</code>
|
||||
filters out all non-null instance statuses that do not equal <code>UP</code>. If the instance status
|
||||
field is empty, it is considered to be <code>UP</code> for backwards compatibility. To change the
|
||||
status of an instance, make a <code>POST</code> with <code>OUT_OF_SERVICE</code> to the <code>ServiceRegistry</code>
|
||||
instance status actuator endpoint, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-sh hljs" data-lang="sh">$ http POST http://localhost:8081/service-registry status=OUT_OF_SERVICE</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
The preceding example uses the <code>http</code> command from <a href="https://httpie.org" class="bare">httpie.org</a>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-dependencies"><a class="anchor" href="#spring-cloud-zookeeper-dependencies"></a><a class="link" href="#spring-cloud-zookeeper-dependencies">5. Zookeeper Dependencies</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>The following topics cover how to work with Spring Cloud Zookeeper dependencies:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-using">Using the Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-activating">Activating Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-setting-up">Setting up Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#spring-cloud-zookeeper-dependencies-configuring">Configuring Spring Cloud Zookeeper Dependencies</a></p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-using"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-using"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-using">5.1. Using the Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper gives you a possibility to provide dependencies of your application
|
||||
as properties. As dependencies, you can understand other applications that are registered
|
||||
in Zookeeper and which you would like to call through
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign">Feign</a>
|
||||
(a REST client builder),
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/ascii">Spring
|
||||
<code>RestTemplate</code></a> and
|
||||
<a href="https://cloud.spring.io/spring-cloud-commons/reference/html/#loadbalanced-webclient">Spring WebFlux</a>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can also use the Zookeeper Dependency Watchers functionality to control and monitor
|
||||
the state of your dependencies.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-activating"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-activating"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-activating">5.2. Activating Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Including a dependency on
|
||||
<code>org.springframework.cloud:spring-cloud-starter-zookeeper-discovery</code> enables
|
||||
autoconfiguration that sets up Spring Cloud Zookeeper Dependencies. Even if you provide
|
||||
the dependencies in your properties, you can turn off the dependencies. To do so, set the
|
||||
<code>spring.cloud.zookeeper.dependency.enabled</code> property to false (it defaults to <code>true</code>).</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-setting-up"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-setting-up"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-setting-up">5.3. Setting up Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Consider the following example of dependency representation:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">spring.application.name: yourServiceName
|
||||
spring.cloud.zookeeper:
|
||||
dependencies:
|
||||
newsletter:
|
||||
path: /path/where/newsletter/has/registered/in/zookeeper
|
||||
loadBalancerType: ROUND_ROBIN
|
||||
contentTypeTemplate: application/vnd.newsletter.$version+json
|
||||
version: v1
|
||||
headers:
|
||||
header1:
|
||||
- value1
|
||||
header2:
|
||||
- value2
|
||||
required: false
|
||||
stubs: org.springframework:foo:stubs
|
||||
mailing:
|
||||
path: /path/where/mailing/has/registered/in/zookeeper
|
||||
loadBalancerType: ROUND_ROBIN
|
||||
contentTypeTemplate: application/vnd.mailing.$version+json
|
||||
version: v1
|
||||
required: true</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The next few sections go through each part of the dependency one by one. The root property
|
||||
name is <code>spring.cloud.zookeeper.dependencies</code>.</p>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="spring-cloud-zookeeper-dependencies-setting-up-aliases"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-setting-up-aliases"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-setting-up-aliases">5.3.1. Aliases</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Below the root property you have to represent each dependency as an alias. This is due to
|
||||
the constraints of Ribbon, which requires that the application ID be placed in the URL.
|
||||
Consequently, you cannot pass any complex path, suchas <code>/myApp/myRoute/name</code>). The alias
|
||||
is the name you use instead of the <code>serviceId</code> for <code>DiscoveryClient</code>, <code>Feign</code>, or
|
||||
<code>RestTemplate</code>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>In the previous examples, the aliases are <code>newsletter</code> and <code>mailing</code>. The following
|
||||
example shows Feign usage with a <code>newsletter</code> alias:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@FeignClient("newsletter")
|
||||
public interface NewsletterService {
|
||||
@RequestMapping(method = RequestMethod.GET, value = "/newsletter")
|
||||
String getNewsletters();
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="path"><a class="anchor" href="#path"></a><a class="link" href="#path">5.3.2. Path</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>The path is represented by the <code>path</code> YAML property and is the path under which the
|
||||
dependency is registered under Zookeeper. As described in the
|
||||
<a href="#spring-cloud-zookeeper-dependencies-setting-up-aliases">previous section</a>, Ribbon
|
||||
operates on URLs. As a result, this path is not compliant with its requirement.
|
||||
That is why Spring Cloud Zookeeper maps the alias to the proper path.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="load-balancer-type"><a class="anchor" href="#load-balancer-type"></a><a class="link" href="#load-balancer-type">5.3.3. Load Balancer Type</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>The load balancer type is represented by <code>loadBalancerType</code> YAML property.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you know what kind of load-balancing strategy has to be applied when calling this
|
||||
particular dependency, you can provide it in the YAML file, and it is automatically
|
||||
applied. You can choose one of the following load balancing strategies:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p>STICKY: Once chosen, the instance is always called.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>RANDOM: Picks an instance randomly.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>ROUND_ROBIN: Iterates over instances over and over again.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="content-type-template-and-version"><a class="anchor" href="#content-type-template-and-version"></a><a class="link" href="#content-type-template-and-version">5.3.4. <code>Content-Type</code> Template and Version</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>The <code>Content-Type</code> template and version are represented by the <code>contentTypeTemplate</code> and
|
||||
<code>version</code> YAML properties.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you version your API in the <code>Content-Type</code> header, you do not want to add this header
|
||||
to each of your requests. Also, if you want to call a new version of the API, you do not
|
||||
want to roam around your code to bump up the API version. That is why you can provide a
|
||||
<code>contentTypeTemplate</code> with a special <code>$version</code> placeholder. That placeholder will be filled by the value of the
|
||||
<code>version</code> YAML property. Consider the following example of a <code>contentTypeTemplate</code>:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>application/vnd.newsletter.$version+json</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Further consider the following <code>version</code>:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>v1</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The combination of <code>contentTypeTemplate</code> and version results in the creation of a
|
||||
<code>Content-Type</code> header for each request, as follows:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>application/vnd.newsletter.v1+json</pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="default-headers"><a class="anchor" href="#default-headers"></a><a class="link" href="#default-headers">5.3.5. Default Headers</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Default headers are represented by the <code>headers</code> map in YAML.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Sometimes, each call to a dependency requires setting up of some default headers. To not
|
||||
do that in code, you can set them up in the YAML file, as shown in the following example
|
||||
<code>headers</code> section:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">headers:
|
||||
Accept:
|
||||
- text/html
|
||||
- application/xhtml+xml
|
||||
Cache-Control:
|
||||
- no-cache</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>That <code>headers</code> section results in adding the <code>Accept</code> and <code>Cache-Control</code> headers with
|
||||
appropriate list of values in your HTTP request.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="required-dependencies"><a class="anchor" href="#required-dependencies"></a><a class="link" href="#required-dependencies">5.3.6. Required Dependencies</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Required dependencies are represented by <code>required</code> property in YAML.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If one of your dependencies is required to be up when your application boots, you can set
|
||||
the <code>required: true</code> property in the YAML file.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If your application cannot localize the required dependency during boot time, it throws an
|
||||
exception, and the Spring Context fails to set up. In other words, your application cannot
|
||||
start if the required dependency is not registered in Zookeeper.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can read more about Spring Cloud Zookeeper Presence Checker
|
||||
<a href="#spring-cloud-zookeeper-dependency-watcher-presence-checker">later in this document</a>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="stubs"><a class="anchor" href="#stubs"></a><a class="link" href="#stubs">5.3.7. Stubs</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>You can provide a colon-separated path to the JAR containing stubs of the dependency, as
|
||||
shown in the following example:</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><code>stubs: org.springframework:myApp:stubs</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>where:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>org.springframework</code> is the <code>groupId</code>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>myApp</code> is the <code>artifactId</code>.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>stubs</code> is the classifier. (Note that <code>stubs</code> is the default value.)</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Because <code>stubs</code> is the default classifier, the preceding example is equal to the following
|
||||
example:</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><code>stubs: org.springframework:myApp</code></p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependencies-configuring"><a class="anchor" href="#spring-cloud-zookeeper-dependencies-configuring"></a><a class="link" href="#spring-cloud-zookeeper-dependencies-configuring">5.4. Configuring Spring Cloud Zookeeper Dependencies</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>You can set the following properties to enable or disable parts of Zookeeper Dependencies
|
||||
functionalities:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependencies</code>: If you do not set this property, you cannot use
|
||||
Zookeeper Dependencies.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.ribbon.enabled</code> (enabled by default): Ribbon requires
|
||||
either explicit global configuration or a particular one for a dependency. By turning on
|
||||
this property, runtime load balancing strategy resolution is possible, and you can use the
|
||||
<code>loadBalancerType</code> section of the Zookeeper Dependencies. The configuration that needs
|
||||
this property has an implementation of <code>LoadBalancerClient</code> that delegates to the
|
||||
<code>ILoadBalancer</code> presented in the next bullet.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.ribbon.loadbalancer</code> (enabled by default): Thanks to
|
||||
this property, the custom <code>ILoadBalancer</code> knows that the part of the URI passed to Ribbon
|
||||
might actually be the alias that has to be resolved to a proper path in Zookeeper. Without
|
||||
this property, you cannot register applications under nested paths.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.headers.enabled</code> (enabled by default): This property
|
||||
registers a <code>RibbonClient</code> that automatically appends appropriate headers and content
|
||||
types with their versions, as presented in the Dependency configuration. Without this
|
||||
setting, those two parameters do not work.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>spring.cloud.zookeeper.dependency.resttemplate.enabled</code> (enabled by default): When
|
||||
enabled, this property modifies the request headers of a <code>@LoadBalanced</code>-annotated
|
||||
<code>RestTemplate</code> such that it passes headers and content type with the version set in
|
||||
dependency configuration. Without this setting, those two parameters do not work.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-dependency-watcher"><a class="anchor" href="#spring-cloud-zookeeper-dependency-watcher"></a><a class="link" href="#spring-cloud-zookeeper-dependency-watcher">6. Spring Cloud Zookeeper Dependency Watcher</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>The Dependency Watcher mechanism lets you register listeners to your dependencies. The
|
||||
functionality is, in fact, an implementation of the <code>Observator</code> pattern. When a
|
||||
dependency changes, its state (to either UP or DOWN), some custom logic can be applied.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="activating-2"><a class="anchor" href="#activating-2"></a><a class="link" href="#activating-2">6.1. Activating</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Spring Cloud Zookeeper Dependencies functionality needs to be enabled for you to use the
|
||||
Dependency Watcher mechanism.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="registering-a-listener"><a class="anchor" href="#registering-a-listener"></a><a class="link" href="#registering-a-listener">6.2. Registering a Listener</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>To register a listener, you must implement an interface called
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.DependencyWatcherListener</code> and
|
||||
register it as a bean. The interface gives you one method:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">void stateChanged(String dependencyName, DependencyState newState);</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>If you want to register a listener for a particular dependency, the <code>dependencyName</code> would
|
||||
be the discriminator for your concrete implementation. <code>newState</code> provides you with
|
||||
information about whether your dependency has changed to <code>CONNECTED</code> or <code>DISCONNECTED</code>.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="spring-cloud-zookeeper-dependency-watcher-presence-checker"><a class="anchor" href="#spring-cloud-zookeeper-dependency-watcher-presence-checker"></a><a class="link" href="#spring-cloud-zookeeper-dependency-watcher-presence-checker">6.3. Using the Presence Checker</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Bound with the Dependency Watcher is the functionality called Presence Checker. It lets
|
||||
you provide custom behavior when your application boots, to react according to the state
|
||||
of your dependencies.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The default implementation of the abstract
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.presence.DependencyPresenceOnStartupVerifier</code>
|
||||
class is the
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.presence.DefaultDependencyPresenceOnStartupVerifier</code>,
|
||||
which works in the following way.</p>
|
||||
</div>
|
||||
<div class="olist arabic">
|
||||
<ol class="arabic">
|
||||
<li>
|
||||
<p>If the dependency is marked us <code>required</code> and is not in Zookeeper, when your application
|
||||
boots, it throws an exception and shuts down.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>If the dependency is not <code>required</code>, the
|
||||
<code>org.springframework.cloud.zookeeper.discovery.watcher.presence.LogMissingDependencyChecker</code>
|
||||
logs that the dependency is missing at the <code>WARN</code> level.</p>
|
||||
</li>
|
||||
</ol>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Because the <code>DefaultDependencyPresenceOnStartupVerifier</code> is registered only when there is
|
||||
no bean of type <code>DependencyPresenceOnStartupVerifier</code>, this functionality can be
|
||||
overridden.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect1">
|
||||
<h2 id="spring-cloud-zookeeper-config"><a class="anchor" href="#spring-cloud-zookeeper-config"></a><a class="link" href="#spring-cloud-zookeeper-config">7. Distributed Configuration with Zookeeper</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>Zookeeper provides a
|
||||
<a href="https://zookeeper.apache.org/doc/current/zookeeperOver.html#sc_dataModelNameSpace">hierarchical namespace</a>
|
||||
that lets clients store arbitrary data, such as configuration data. Spring Cloud Zookeeper
|
||||
Config is an alternative to the
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-config">Config Server and Client</a>.
|
||||
Configuration is loaded into the Spring Environment during the special “bootstrap”
|
||||
phase. Configuration is stored in the <code>/config</code> namespace by default. Multiple
|
||||
<code>PropertySource</code> instances are created, based on the application’s name and the active
|
||||
profiles, to mimic the Spring Cloud Config order of resolving properties. For example, an
|
||||
application with a name of <code>testApp</code> and with the <code>dev</code> profile has the following property
|
||||
sources created for it:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>config/testApp,dev</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>config/testApp</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>config/application,dev</code></p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>config/application</code></p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The most specific property source is at the top, with the least specific at the bottom.
|
||||
Properties in the <code>config/application</code> namespace apply to all applications that use
|
||||
zookeeper for configuration. Properties in the <code>config/testApp</code> namespace are available
|
||||
only to the instances of the service named <code>testApp</code>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Configuration is currently read on startup of the application. Sending a HTTP <code>POST</code>
|
||||
request to <code>/refresh</code> causes the configuration to be reloaded. Watching the configuration
|
||||
namespace (which Zookeeper supports) is not currently implemented.</p>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="activating-3"><a class="anchor" href="#activating-3"></a><a class="link" href="#activating-3">7.1. Activating</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Including a dependency on
|
||||
<code>org.springframework.cloud:spring-cloud-starter-zookeeper-config</code> enables
|
||||
autoconfiguration that sets up Spring Cloud Zookeeper Config.</p>
|
||||
</div>
|
||||
<div class="admonitionblock caution">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-caution" title="Caution"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
When working with version 3.4 of Zookeeper you need to change
|
||||
the way you include the dependency as described <a href="#spring-cloud-zookeeper-install">here</a>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="customizing"><a class="anchor" href="#customizing"></a><a class="link" href="#customizing">7.2. Customizing</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Zookeeper Config may be customized by setting the following properties:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">bootstrap.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yml hljs" data-lang="yml">spring:
|
||||
cloud:
|
||||
zookeeper:
|
||||
config:
|
||||
enabled: true
|
||||
root: configuration
|
||||
defaultContext: apps
|
||||
profileSeparator: '::'</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p><code>enabled</code>: Setting this value to <code>false</code> disables Zookeeper Config.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>root</code>: Sets the base namespace for configuration values.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>defaultContext</code>: Sets the name used by all applications.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><code>profileSeparator</code>: Sets the value of the separator used to separate the profile name in
|
||||
property sources with profiles.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="access-control-lists-acls"><a class="anchor" href="#access-control-lists-acls"></a><a class="link" href="#access-control-lists-acls">7.3. Access Control Lists (ACLs)</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>You can add authentication information for Zookeeper ACLs by calling the <code>addAuthInfo</code>
|
||||
method of a <code>CuratorFramework</code> bean. One way to accomplish this is to provide your own
|
||||
<code>CuratorFramework</code> bean, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@BoostrapConfiguration
|
||||
public class CustomCuratorFrameworkConfig {
|
||||
|
||||
@Bean
|
||||
public CuratorFramework curatorFramework() {
|
||||
CuratorFramework curator = new CuratorFramework();
|
||||
curator.addAuthInfo("digest", "user:password".getBytes());
|
||||
return curator;
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Consult
|
||||
<a href="https://github.com/spring-cloud/spring-cloud-zookeeper/blob/master/spring-cloud-zookeeper-core/src/main/java/org/springframework/cloud/zookeeper/ZookeeperAutoConfiguration.java">the ZookeeperAutoConfiguration class</a>
|
||||
to see how the <code>CuratorFramework</code> bean’s default configuration.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Alternatively, you can add your credentials from a class that depends on the existing
|
||||
<code>CuratorFramework</code> bean, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@BoostrapConfiguration
|
||||
public class DefaultCuratorFrameworkConfig {
|
||||
|
||||
public ZookeeperConfig(CuratorFramework curator) {
|
||||
curator.addAuthInfo("digest", "user:password".getBytes());
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The creation of this bean must occur during the boostrapping phase. You can register
|
||||
configuration classes to run during this phase by annotating them with
|
||||
<code>@BootstrapConfiguration</code> and including them in a comma-separated list that you set as the
|
||||
value of the <code>org.springframework.cloud.bootstrap.BootstrapConfiguration</code> property in the
|
||||
<code>resources/META-INF/spring.factories</code> file, as shown in the following example:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">resources/META-INF/spring.factories</div>
|
||||
<div class="content">
|
||||
<pre>org.springframework.cloud.bootstrap.BootstrapConfiguration=\
|
||||
my.project.CustomCuratorFrameworkConfig,\
|
||||
my.project.DefaultCuratorFrameworkConfig</pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
||||
<script type="text/javascript" src="js/toc.js"></script>
|
||||
<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
|
||||
<script src="js/highlight/highlight.min.js"></script>
|
||||
<script>hljs.initHighlighting()</script>
|
||||
</body>
|
||||
</html>
|
||||
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spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/highlight.min.js
vendored
Normal file
2
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/highlight.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
99
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/a11y-dark.min.css
vendored
Normal file
99
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/a11y-dark.min.css
vendored
Normal file
@@ -0,0 +1,99 @@
|
||||
/* a11y-dark theme */
|
||||
/* Based on the Tomorrow Night Eighties theme: https://github.com/isagalaev/highlight.js/blob/master/src/styles/tomorrow-night-eighties.css */
|
||||
/* @author: ericwbailey */
|
||||
|
||||
/* Comment */
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #d4d0ab;
|
||||
}
|
||||
|
||||
/* Red */
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-tag,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class,
|
||||
.hljs-regexp,
|
||||
.hljs-deletion {
|
||||
color: #ffa07a;
|
||||
}
|
||||
|
||||
/* Orange */
|
||||
.hljs-number,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-literal,
|
||||
.hljs-type,
|
||||
.hljs-params,
|
||||
.hljs-meta,
|
||||
.hljs-link {
|
||||
color: #f5ab35;
|
||||
}
|
||||
|
||||
/* Yellow */
|
||||
.hljs-attribute {
|
||||
color: #ffd700;
|
||||
}
|
||||
|
||||
/* Green */
|
||||
.hljs-string,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-addition {
|
||||
color: #abe338;
|
||||
}
|
||||
|
||||
/* Blue */
|
||||
.hljs-title,
|
||||
.hljs-section {
|
||||
color: #00e0e0;
|
||||
}
|
||||
|
||||
/* Purple */
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag {
|
||||
color: #dcc6e0;
|
||||
}
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
background: #2b2b2b;
|
||||
color: #f8f8f2;
|
||||
padding: 0.5em;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
@media screen and (-ms-high-contrast: active) {
|
||||
.hljs-addition,
|
||||
.hljs-attribute,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-bullet,
|
||||
.hljs-comment,
|
||||
.hljs-link,
|
||||
.hljs-literal,
|
||||
.hljs-meta,
|
||||
.hljs-number,
|
||||
.hljs-params,
|
||||
.hljs-string,
|
||||
.hljs-symbol,
|
||||
.hljs-type,
|
||||
.hljs-quote {
|
||||
color: highlight;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag {
|
||||
font-weight: bold;
|
||||
}
|
||||
}
|
||||
89
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/an-old-hope.min.css
vendored
Normal file
89
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/an-old-hope.min.css
vendored
Normal file
@@ -0,0 +1,89 @@
|
||||
/*
|
||||
|
||||
An Old Hope – Star Wars Syntax (c) Gustavo Costa <gusbemacbe@gmail.com>
|
||||
Original theme - Ocean Dark Theme – by https://github.com/gavsiu
|
||||
Based on Jesse Leite's Atom syntax theme 'An Old Hope' – https://github.com/JesseLeite/an-old-hope-syntax-atom
|
||||
|
||||
*/
|
||||
|
||||
/* Death Star Comment */
|
||||
.hljs-comment,
|
||||
.hljs-quote
|
||||
{
|
||||
color: #B6B18B;
|
||||
}
|
||||
|
||||
/* Darth Vader */
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-tag,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class,
|
||||
.hljs-regexp,
|
||||
.hljs-deletion
|
||||
{
|
||||
color: #EB3C54;
|
||||
}
|
||||
|
||||
/* Threepio */
|
||||
.hljs-number,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-literal,
|
||||
.hljs-type,
|
||||
.hljs-params,
|
||||
.hljs-meta,
|
||||
.hljs-link
|
||||
{
|
||||
color: #E7CE56;
|
||||
}
|
||||
|
||||
/* Luke Skywalker */
|
||||
.hljs-attribute
|
||||
{
|
||||
color: #EE7C2B;
|
||||
}
|
||||
|
||||
/* Obi Wan Kenobi */
|
||||
.hljs-string,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-addition
|
||||
{
|
||||
color: #4FB4D7;
|
||||
}
|
||||
|
||||
/* Yoda */
|
||||
.hljs-title,
|
||||
.hljs-section
|
||||
{
|
||||
color: #78BB65;
|
||||
}
|
||||
|
||||
/* Mace Windu */
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag
|
||||
{
|
||||
color: #B45EA4;
|
||||
}
|
||||
|
||||
/* Millenium Falcon */
|
||||
.hljs
|
||||
{
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
background: #1C1D21;
|
||||
color: #c0c5ce;
|
||||
padding: 0.5em;
|
||||
}
|
||||
|
||||
.hljs-emphasis
|
||||
{
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong
|
||||
{
|
||||
font-weight: bold;
|
||||
}
|
||||
@@ -0,0 +1,77 @@
|
||||
/*
|
||||
|
||||
Atom One Dark With support for ReasonML by Gidi Morris, based off work by Daniel Gamage
|
||||
|
||||
Original One Dark Syntax theme from https://github.com/atom/one-dark-syntax
|
||||
|
||||
*/
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
line-height: 1.3em;
|
||||
color: #abb2bf;
|
||||
background: #282c34;
|
||||
border-radius: 5px;
|
||||
}
|
||||
.hljs-keyword, .hljs-operator {
|
||||
color: #F92672;
|
||||
}
|
||||
.hljs-pattern-match {
|
||||
color: #F92672;
|
||||
}
|
||||
.hljs-pattern-match .hljs-constructor {
|
||||
color: #61aeee;
|
||||
}
|
||||
.hljs-function {
|
||||
color: #61aeee;
|
||||
}
|
||||
.hljs-function .hljs-params {
|
||||
color: #A6E22E;
|
||||
}
|
||||
.hljs-function .hljs-params .hljs-typing {
|
||||
color: #FD971F;
|
||||
}
|
||||
.hljs-module-access .hljs-module {
|
||||
color: #7e57c2;
|
||||
}
|
||||
.hljs-constructor {
|
||||
color: #e2b93d;
|
||||
}
|
||||
.hljs-constructor .hljs-string {
|
||||
color: #9CCC65;
|
||||
}
|
||||
.hljs-comment, .hljs-quote {
|
||||
color: #b18eb1;
|
||||
font-style: italic;
|
||||
}
|
||||
.hljs-doctag, .hljs-formula {
|
||||
color: #c678dd;
|
||||
}
|
||||
.hljs-section, .hljs-name, .hljs-selector-tag, .hljs-deletion, .hljs-subst {
|
||||
color: #e06c75;
|
||||
}
|
||||
.hljs-literal {
|
||||
color: #56b6c2;
|
||||
}
|
||||
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute, .hljs-meta-string {
|
||||
color: #98c379;
|
||||
}
|
||||
.hljs-built_in, .hljs-class .hljs-title {
|
||||
color: #e6c07b;
|
||||
}
|
||||
.hljs-attr, .hljs-variable, .hljs-template-variable, .hljs-type, .hljs-selector-class, .hljs-selector-attr, .hljs-selector-pseudo, .hljs-number {
|
||||
color: #d19a66;
|
||||
}
|
||||
.hljs-symbol, .hljs-bullet, .hljs-link, .hljs-meta, .hljs-selector-id, .hljs-title {
|
||||
color: #61aeee;
|
||||
}
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
96
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/atom-one-dark.min.css
vendored
Normal file
96
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/atom-one-dark.min.css
vendored
Normal file
@@ -0,0 +1,96 @@
|
||||
/*
|
||||
|
||||
Atom One Dark by Daniel Gamage
|
||||
Original One Dark Syntax theme from https://github.com/atom/one-dark-syntax
|
||||
|
||||
base: #282c34
|
||||
mono-1: #abb2bf
|
||||
mono-2: #818896
|
||||
mono-3: #5c6370
|
||||
hue-1: #56b6c2
|
||||
hue-2: #61aeee
|
||||
hue-3: #c678dd
|
||||
hue-4: #98c379
|
||||
hue-5: #e06c75
|
||||
hue-5-2: #be5046
|
||||
hue-6: #d19a66
|
||||
hue-6-2: #e6c07b
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
color: #abb2bf;
|
||||
background: #282c34;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #5c6370;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-doctag,
|
||||
.hljs-keyword,
|
||||
.hljs-formula {
|
||||
color: #c678dd;
|
||||
}
|
||||
|
||||
.hljs-section,
|
||||
.hljs-name,
|
||||
.hljs-selector-tag,
|
||||
.hljs-deletion,
|
||||
.hljs-subst {
|
||||
color: #e06c75;
|
||||
}
|
||||
|
||||
.hljs-literal {
|
||||
color: #56b6c2;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-regexp,
|
||||
.hljs-addition,
|
||||
.hljs-attribute,
|
||||
.hljs-meta-string {
|
||||
color: #98c379;
|
||||
}
|
||||
|
||||
.hljs-built_in,
|
||||
.hljs-class .hljs-title {
|
||||
color: #e6c07b;
|
||||
}
|
||||
|
||||
.hljs-attr,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-type,
|
||||
.hljs-selector-class,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-number {
|
||||
color: #d19a66;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-link,
|
||||
.hljs-meta,
|
||||
.hljs-selector-id,
|
||||
.hljs-title {
|
||||
color: #61aeee;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
96
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/atom-one-light.min.css
vendored
Normal file
96
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/atom-one-light.min.css
vendored
Normal file
@@ -0,0 +1,96 @@
|
||||
/*
|
||||
|
||||
Atom One Light by Daniel Gamage
|
||||
Original One Light Syntax theme from https://github.com/atom/one-light-syntax
|
||||
|
||||
base: #fafafa
|
||||
mono-1: #383a42
|
||||
mono-2: #686b77
|
||||
mono-3: #a0a1a7
|
||||
hue-1: #0184bb
|
||||
hue-2: #4078f2
|
||||
hue-3: #a626a4
|
||||
hue-4: #50a14f
|
||||
hue-5: #e45649
|
||||
hue-5-2: #c91243
|
||||
hue-6: #986801
|
||||
hue-6-2: #c18401
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
color: #383a42;
|
||||
background: #fafafa;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #a0a1a7;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-doctag,
|
||||
.hljs-keyword,
|
||||
.hljs-formula {
|
||||
color: #a626a4;
|
||||
}
|
||||
|
||||
.hljs-section,
|
||||
.hljs-name,
|
||||
.hljs-selector-tag,
|
||||
.hljs-deletion,
|
||||
.hljs-subst {
|
||||
color: #e45649;
|
||||
}
|
||||
|
||||
.hljs-literal {
|
||||
color: #0184bb;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-regexp,
|
||||
.hljs-addition,
|
||||
.hljs-attribute,
|
||||
.hljs-meta-string {
|
||||
color: #50a14f;
|
||||
}
|
||||
|
||||
.hljs-built_in,
|
||||
.hljs-class .hljs-title {
|
||||
color: #c18401;
|
||||
}
|
||||
|
||||
.hljs-attr,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-type,
|
||||
.hljs-selector-class,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-number {
|
||||
color: #986801;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-link,
|
||||
.hljs-meta,
|
||||
.hljs-selector-id,
|
||||
.hljs-title {
|
||||
color: #4078f2;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
76
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/dracula.min.css
vendored
Normal file
76
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/dracula.min.css
vendored
Normal file
@@ -0,0 +1,76 @@
|
||||
/*
|
||||
|
||||
Dracula Theme v1.2.0
|
||||
|
||||
https://github.com/zenorocha/dracula-theme
|
||||
|
||||
Copyright 2015, All rights reserved
|
||||
|
||||
Code licensed under the MIT license
|
||||
http://zenorocha.mit-license.org
|
||||
|
||||
@author Éverton Ribeiro <nuxlli@gmail.com>
|
||||
@author Zeno Rocha <hi@zenorocha.com>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #282a36;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-section,
|
||||
.hljs-link {
|
||||
color: #8be9fd;
|
||||
}
|
||||
|
||||
.hljs-function .hljs-keyword {
|
||||
color: #ff79c6;
|
||||
}
|
||||
|
||||
.hljs,
|
||||
.hljs-subst {
|
||||
color: #f8f8f2;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-title,
|
||||
.hljs-name,
|
||||
.hljs-type,
|
||||
.hljs-attribute,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-addition,
|
||||
.hljs-variable,
|
||||
.hljs-template-tag,
|
||||
.hljs-template-variable {
|
||||
color: #f1fa8c;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote,
|
||||
.hljs-deletion,
|
||||
.hljs-meta {
|
||||
color: #6272a4;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-doctag,
|
||||
.hljs-type,
|
||||
.hljs-name,
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
99
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/github.min.css
vendored
Normal file
99
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/github.min.css
vendored
Normal file
@@ -0,0 +1,99 @@
|
||||
/*
|
||||
|
||||
github.com style (c) Vasily Polovnyov <vast@whiteants.net>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
color: #333;
|
||||
background: #f8f8f8;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #998;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-subst {
|
||||
color: #333;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-number,
|
||||
.hljs-literal,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-tag .hljs-attr {
|
||||
color: #008080;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-doctag {
|
||||
color: #d14;
|
||||
}
|
||||
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-selector-id {
|
||||
color: #900;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-subst {
|
||||
font-weight: normal;
|
||||
}
|
||||
|
||||
.hljs-type,
|
||||
.hljs-class .hljs-title {
|
||||
color: #458;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-tag,
|
||||
.hljs-name,
|
||||
.hljs-attribute {
|
||||
color: #000080;
|
||||
font-weight: normal;
|
||||
}
|
||||
|
||||
.hljs-regexp,
|
||||
.hljs-link {
|
||||
color: #009926;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet {
|
||||
color: #990073;
|
||||
}
|
||||
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name {
|
||||
color: #0086b3;
|
||||
}
|
||||
|
||||
.hljs-meta {
|
||||
color: #999;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-deletion {
|
||||
background: #fdd;
|
||||
}
|
||||
|
||||
.hljs-addition {
|
||||
background: #dfd;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
83
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/monokai-sublime.min.css
vendored
Normal file
83
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/monokai-sublime.min.css
vendored
Normal file
@@ -0,0 +1,83 @@
|
||||
/*
|
||||
|
||||
Monokai Sublime style. Derived from Monokai by noformnocontent http://nn.mit-license.org/
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #23241f;
|
||||
}
|
||||
|
||||
.hljs,
|
||||
.hljs-tag,
|
||||
.hljs-subst {
|
||||
color: #f8f8f2;
|
||||
}
|
||||
|
||||
.hljs-strong,
|
||||
.hljs-emphasis {
|
||||
color: #a8a8a2;
|
||||
}
|
||||
|
||||
.hljs-bullet,
|
||||
.hljs-quote,
|
||||
.hljs-number,
|
||||
.hljs-regexp,
|
||||
.hljs-literal,
|
||||
.hljs-link {
|
||||
color: #ae81ff;
|
||||
}
|
||||
|
||||
.hljs-code,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-selector-class {
|
||||
color: #a6e22e;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-name,
|
||||
.hljs-attr {
|
||||
color: #f92672;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-attribute {
|
||||
color: #66d9ef;
|
||||
}
|
||||
|
||||
.hljs-params,
|
||||
.hljs-class .hljs-title {
|
||||
color: #f8f8f2;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-type,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-addition,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable {
|
||||
color: #e6db74;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-deletion,
|
||||
.hljs-meta {
|
||||
color: #75715e;
|
||||
}
|
||||
70
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/monokai.min.css
vendored
Normal file
70
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/monokai.min.css
vendored
Normal file
@@ -0,0 +1,70 @@
|
||||
/*
|
||||
Monokai style - ported by Luigi Maselli - http://grigio.org
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #272822; color: #ddd;
|
||||
}
|
||||
|
||||
.hljs-tag,
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-strong,
|
||||
.hljs-name {
|
||||
color: #f92672;
|
||||
}
|
||||
|
||||
.hljs-code {
|
||||
color: #66d9ef;
|
||||
}
|
||||
|
||||
.hljs-class .hljs-title {
|
||||
color: white;
|
||||
}
|
||||
|
||||
.hljs-attribute,
|
||||
.hljs-symbol,
|
||||
.hljs-regexp,
|
||||
.hljs-link {
|
||||
color: #bf79db;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-bullet,
|
||||
.hljs-subst,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-emphasis,
|
||||
.hljs-type,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-addition,
|
||||
.hljs-variable,
|
||||
.hljs-template-tag,
|
||||
.hljs-template-variable {
|
||||
color: #a6e22e;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote,
|
||||
.hljs-deletion,
|
||||
.hljs-meta {
|
||||
color: #75715e;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-literal,
|
||||
.hljs-doctag,
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-type,
|
||||
.hljs-selector-id {
|
||||
font-weight: bold;
|
||||
}
|
||||
84
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/solarized-light.min.css
vendored
Normal file
84
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/solarized-light.min.css
vendored
Normal file
@@ -0,0 +1,84 @@
|
||||
/*
|
||||
|
||||
Orginal Style from ethanschoonover.com/solarized (c) Jeremy Hull <sourdrums@gmail.com>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #fdf6e3;
|
||||
color: #657b83;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #93a1a1;
|
||||
}
|
||||
|
||||
/* Solarized Green */
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-addition {
|
||||
color: #859900;
|
||||
}
|
||||
|
||||
/* Solarized Cyan */
|
||||
.hljs-number,
|
||||
.hljs-string,
|
||||
.hljs-meta .hljs-meta-string,
|
||||
.hljs-literal,
|
||||
.hljs-doctag,
|
||||
.hljs-regexp {
|
||||
color: #2aa198;
|
||||
}
|
||||
|
||||
/* Solarized Blue */
|
||||
.hljs-title,
|
||||
.hljs-section,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class {
|
||||
color: #268bd2;
|
||||
}
|
||||
|
||||
/* Solarized Yellow */
|
||||
.hljs-attribute,
|
||||
.hljs-attr,
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-class .hljs-title,
|
||||
.hljs-type {
|
||||
color: #b58900;
|
||||
}
|
||||
|
||||
/* Solarized Orange */
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-subst,
|
||||
.hljs-meta,
|
||||
.hljs-meta .hljs-keyword,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-link {
|
||||
color: #cb4b16;
|
||||
}
|
||||
|
||||
/* Solarized Red */
|
||||
.hljs-built_in,
|
||||
.hljs-deletion {
|
||||
color: #dc322f;
|
||||
}
|
||||
|
||||
.hljs-formula {
|
||||
background: #eee8d5;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
80
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/zenburn.min.css
vendored
Normal file
80
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/highlight/styles/zenburn.min.css
vendored
Normal file
@@ -0,0 +1,80 @@
|
||||
/*
|
||||
|
||||
Zenburn style from voldmar.ru (c) Vladimir Epifanov <voldmar@voldmar.ru>
|
||||
based on dark.css by Ivan Sagalaev
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: #3f3f3f;
|
||||
color: #dcdcdc;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-tag {
|
||||
color: #e3ceab;
|
||||
}
|
||||
|
||||
.hljs-template-tag {
|
||||
color: #dcdcdc;
|
||||
}
|
||||
|
||||
.hljs-number {
|
||||
color: #8cd0d3;
|
||||
}
|
||||
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-attribute {
|
||||
color: #efdcbc;
|
||||
}
|
||||
|
||||
.hljs-literal {
|
||||
color: #efefaf;
|
||||
}
|
||||
|
||||
.hljs-subst {
|
||||
color: #8f8f8f;
|
||||
}
|
||||
|
||||
.hljs-title,
|
||||
.hljs-name,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class,
|
||||
.hljs-section,
|
||||
.hljs-type {
|
||||
color: #efef8f;
|
||||
}
|
||||
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-link {
|
||||
color: #dca3a3;
|
||||
}
|
||||
|
||||
.hljs-deletion,
|
||||
.hljs-string,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name {
|
||||
color: #cc9393;
|
||||
}
|
||||
|
||||
.hljs-addition,
|
||||
.hljs-comment,
|
||||
.hljs-quote,
|
||||
.hljs-meta {
|
||||
color: #7f9f7f;
|
||||
}
|
||||
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
107
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/toc.js
Normal file
107
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/toc.js
Normal file
@@ -0,0 +1,107 @@
|
||||
var toctitle = document.getElementById('toctitle');
|
||||
var path = window.location.pathname;
|
||||
if (toctitle != null) {
|
||||
var oldtoc = toctitle.nextElementSibling;
|
||||
var newtoc = document.createElement('div');
|
||||
newtoc.setAttribute('id', 'tocbot');
|
||||
newtoc.setAttribute('class', 'js-toc desktop-toc');
|
||||
oldtoc.setAttribute('class', 'mobile-toc');
|
||||
oldtoc.parentNode.appendChild(newtoc);
|
||||
tocbot.init({
|
||||
contentSelector: '#content',
|
||||
headingSelector: 'h1, h2, h3, h4, h5',
|
||||
positionFixedSelector: 'body',
|
||||
fixedSidebarOffset: 90,
|
||||
smoothScroll: false
|
||||
});
|
||||
if (!path.endsWith("index.html") && !path.endsWith("/")) {
|
||||
var link = document.createElement("a");
|
||||
link.setAttribute("href", "index.html");
|
||||
link.innerHTML = "<span><i class=\"fa fa-chevron-left\" aria-hidden=\"true\"></i></span> Back to index";
|
||||
var block = document.createElement("div");
|
||||
block.setAttribute('class', 'back-action');
|
||||
block.appendChild(link);
|
||||
var toc = document.getElementById('toc');
|
||||
var next = document.getElementById('toctitle').nextElementSibling;
|
||||
toc.insertBefore(block, next);
|
||||
}
|
||||
}
|
||||
|
||||
var headerHtml = '<div id="header-spring">\n' +
|
||||
'<h1>\n' +
|
||||
'<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0" y="0"\n' +
|
||||
'viewBox="0 0 245.8 45.3" style="enable-background:new 0 0 245.8 45.3;" xml:space="preserve">\n' +
|
||||
'<g id="logos">\n' +
|
||||
'<g>\n' +
|
||||
'<path class="st0" d="M39.4,3.7c-0.6,1.5-1.4,2.8-2.3,4c-3.9-4-9.3-6.4-15.2-6.4c-11.7,0-21.3,9.5-21.3,21.3\n' +
|
||||
'c0,6.2,2.6,11.7,6.8,15.6l0.8,0.7c3.7,3.1,8.5,5,13.7,5c11.2,0,20.4-8.7,21.2-19.8C43.7,18.7,42.1,11.8,39.4,3.7z M10.5,38.3\n' +
|
||||
'c-0.6,0.8-1.8,0.9-2.6,0.3C7.1,37.9,7,36.8,7.6,36c0.6-0.8,1.8-0.9,2.6-0.3C11,36.4,11.1,37.5,10.5,38.3z M39.3,31.9\n' +
|
||||
'c-5.2,7-16.5,4.6-23.6,5c0,0-1.3,0.1-2.6,0.3c0,0,0.5-0.2,1.1-0.4c5-1.7,7.4-2.1,10.5-3.7c5.8-3,11.5-9.4,12.7-16.1\n' +
|
||||
'c-2.2,6.4-8.9,12-14.9,14.2c-4.2,1.5-11.7,3-11.7,3c0,0-0.3-0.2-0.3-0.2c-5.1-2.5-5.3-13.6,4-17.1c4.1-1.6,8-0.7,12.4-1.8\n' +
|
||||
'C31.6,14.1,37,10.6,39.2,6C41.7,13.3,44.7,24.8,39.3,31.9z"/>\n' +
|
||||
'<g>\n' +
|
||||
'<path class="st0" d="M55.2,30.9c-0.5-0.3-0.9-0.9-0.9-1.6c0-1.1,0.8-1.9,1.9-1.9c0.4,0,0.7,0.1,1,0.3c2,1.3,4.1,2,5.9,2\n' +
|
||||
'c2,0,3.2-0.9,3.2-2.2v-0.1c0-1.6-2.2-2.2-4.6-2.9c-3-0.9-6.5-2.1-6.5-6.1v-0.1c0-3.9,3.2-6.3,7.4-6.3c2.2,0,4.5,0.6,6.5,1.7\n' +
|
||||
'c0.7,0.4,1.1,1,1.1,1.8c0,1.1-0.9,1.9-2,1.9c-0.4,0-0.6-0.1-0.9-0.2c-1.7-0.9-3.4-1.4-4.9-1.4c-1.8,0-2.9,0.9-2.9,2v0.1\n' +
|
||||
'c0,1.5,2.2,2.2,4.7,2.9c3,0.9,6.4,2.3,6.4,6v0.1c0,4.3-3.4,6.5-7.7,6.5C60.4,33.3,57.6,32.5,55.2,30.9z"/>\n' +
|
||||
'<path class="st0" d="M72.5,14.3c0-1.3,1-2.4,2.3-2.4c1.3,0,2.4,1.1,2.4,2.4v1.4c1.5-2.2,3.7-3.9,7-3.9c4.8,0,9.6,3.8,9.6,10.7\n' +
|
||||
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var header = document.createElement("div");
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header.innerHTML = headerHtml;
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document.body.insertBefore(header, document.body.firstChild);
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@@ -0,0 +1 @@
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1
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/tocbot/tocbot.min.js
vendored
Normal file
1
spring-cloud-zookeeper/2.2.0.M3/reference/htmlsingle/js/tocbot/tocbot.min.js
vendored
Normal file
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Reference in New Issue
Block a user