Sync docs from v3.0.5.RELEASE to gh-pages
This commit is contained in:
buildmaster
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require 'asciidoctor'
|
||||
require 'erb'
|
||||
|
||||
guard 'shell' do
|
||||
watch(/.*\.adoc$/) {|m|
|
||||
Asciidoctor.render_file('index.adoc', \
|
||||
:in_place => true, \
|
||||
:safe => Asciidoctor::SafeMode::UNSAFE, \
|
||||
:attributes=> { \
|
||||
'source-highlighter' => 'prettify', \
|
||||
'icons' => 'font', \
|
||||
'linkcss'=> 'true', \
|
||||
'copycss' => 'true', \
|
||||
'doctype' => 'book'})
|
||||
}
|
||||
end
|
||||
|
||||
guard 'livereload' do
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||||
watch(%r{^.+\.(css|js|html)$})
|
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end
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,106 @@
|
||||
<!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 1.5.8">
|
||||
<title>Appendices</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 id="appendix" class="book">
|
||||
<div id="header">
|
||||
<h1>Appendices</h1>
|
||||
</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>
|
||||
@@ -0,0 +1,244 @@
|
||||
<!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 1.5.8">
|
||||
<title>Building</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};
|
||||
}
|
||||
|
||||
$(addBlockSwitches);
|
||||
</script>
|
||||
|
||||
</head>
|
||||
<body class="book toc2 toc-left">
|
||||
<div id="header">
|
||||
<div id="toc" class="toc2">
|
||||
<div id="toctitle">Table of Contents</div>
|
||||
<ul class="sectlevel1">
|
||||
<li><a href="#building">Building</a>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#_basic_compile_and_test">Basic Compile and Test</a></li>
|
||||
<li><a href="#_documentation">Documentation</a></li>
|
||||
<li><a href="#_working_with_the_code">Working with the code</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div class="sect1">
|
||||
<h2 id="building"><a class="link" href="#building">Building</a></h2>
|
||||
<div class="sectionbody">
|
||||
<div class="sect2">
|
||||
<h3 id="_basic_compile_and_test"><a class="link" href="#_basic_compile_and_test">Basic Compile and Test</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>To build the source you will need to install JDK 1.7.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The build uses the Maven wrapper so you don’t have to install a specific
|
||||
version of Maven. To enable the tests, you should have Kafka server 0.9 or above running
|
||||
before building. See below for more information on running the servers.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The main build command is</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre>$ ./mvnw clean install</pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can also add '-DskipTests' if you like, to avoid running the tests.</p>
|
||||
</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>The projects that require middleware generally include a
|
||||
<code>docker-compose.yml</code>, so consider using
|
||||
<a href="https://compose.docker.io/">Docker Compose</a> to run the middeware servers
|
||||
in Docker containers.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="_documentation"><a class="link" href="#_documentation">Documentation</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>There is a "full" profile that will generate documentation.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="_working_with_the_code"><a class="link" href="#_working_with_the_code">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/">m2eclipe</a> eclipse plugin for maven support. Other IDEs and tools
|
||||
should also work without issue.</p>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="_importing_into_eclipse_with_m2eclipse"><a class="link" href="#_importing_into_eclipse_with_m2eclipse">Importing into eclipse with m2eclipse</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>We recommend the <a href="https://eclipse.org/m2e/">m2eclipe</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="paragraph">
|
||||
<p>Unfortunately m2e does not yet support Maven 3.3, so once the projects
|
||||
are imported into Eclipse you will also need to tell m2eclipse to use
|
||||
the <code>.settings.xml</code> file for the projects. If you do not do this you
|
||||
may see many different errors related to the POMs in the
|
||||
projects. Open your Eclipse preferences, expand the Maven
|
||||
preferences, and select User Settings. In the User Settings field
|
||||
click Browse and navigate to the Spring Cloud project you imported
|
||||
selecting the <code>.settings.xml</code> file in that project. Click Apply and
|
||||
then OK to save the preference changes.</p>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
Alternatively you can copy the repository settings from <a href="https://github.com/spring-cloud/spring-cloud-build/blob/master/.settings.xml"><code>.settings.xml</code></a> into your own <code>~/.m2/settings.xml</code>.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="_importing_into_eclipse_without_m2eclipse"><a class="link" href="#_importing_into_eclipse_without_m2eclipse">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>
|
||||
<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 +1,185 @@
|
||||
<!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 1.5.8">
|
||||
<title>Sign the Contributor License Agreement</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="sectlevel2">
|
||||
<li><a href="#_sign_the_contributor_license_agreement">Sign the Contributor License Agreement</a></li>
|
||||
<li><a href="#_code_conventions_and_housekeeping">Code Conventions and Housekeeping</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div id="preamble">
|
||||
<div class="sectionbody">
|
||||
<div class="paragraph">
|
||||
<p>[[contributing]
|
||||
== Contributing</p>
|
||||
</div>
|
||||
<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>
|
||||
</div>
|
||||
<div class="sect2">
|
||||
<h3 id="_sign_the_contributor_license_agreement"><a class="link" href="#_sign_the_contributor_license_agreement">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://support.springsource.com/spring_committer_signup">contributor’s 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_conventions_and_housekeeping"><a class="link" href="#_code_conventions_and_housekeeping">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://github.com/spring-cloud/build/tree/master/eclipse-coding-conventions.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>
|
||||
<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>
|
||||
File diff suppressed because one or more lines are too long
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|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<!--[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 1.5.8">
|
||||
<title>Dead-Letter Topic Processing</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">
|
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|
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<style>
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.hidden {
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.switch {
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border-width: 1px 1px 0 1px;
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border-color: #7a2518;
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display: inline-block;
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}
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.switch--item {
|
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padding: 10px;
|
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background-color: #ffffff;
|
||||
color: #7a2518;
|
||||
display: inline-block;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.switch--item:not(:first-child) {
|
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border-width: 0 0 0 1px;
|
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border-style: solid;
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border-color: #7a2518;
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}
|
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|
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.switch--item.selected {
|
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background-color: #7a2519;
|
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color: #ffffff;
|
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}
|
||||
</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() {
|
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primary = $(this);
|
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createSwitchItem(primary, createBlockSwitch(primary)).item.addClass("selected");
|
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primary.children('.title').remove();
|
||||
});
|
||||
$('.secondary').each(function(idx, node) {
|
||||
secondary = $(node);
|
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|
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|
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switchItem.content.addClass('hidden');
|
||||
findPrimary(secondary).append(switchItem.content);
|
||||
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|
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|
||||
}
|
||||
|
||||
function createBlockSwitch(primary) {
|
||||
blockSwitch = $('<div class="switch"></div>');
|
||||
primary.prepend(blockSwitch);
|
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return blockSwitch;
|
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}
|
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|
||||
function findPrimary(secondary) {
|
||||
candidate = secondary.prev();
|
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while (!candidate.is('.primary')) {
|
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candidate = candidate.prev();
|
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|
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|
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|
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function createSwitchItem(block, blockSwitch) {
|
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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="sectlevel2">
|
||||
<li><a href="#kafka-dlq-processing">Dead-Letter Topic Processing</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div class="sect2">
|
||||
<h3 id="kafka-dlq-processing"><a class="link" href="#kafka-dlq-processing">Dead-Letter Topic Processing</a></h3>
|
||||
<div class="sect3">
|
||||
<h4 id="dlq-partition-selection"><a class="link" href="#dlq-partition-selection">Dead-Letter Topic Partition Selection</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>By default, records are published to the Dead-Letter topic using the same partition as the original record.
|
||||
This means the Dead-Letter topic must have at least as many partitions as the original record.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>To change this behavior, add a <code>DlqPartitionFunction</code> implementation as a <code>@Bean</code> to the application context.
|
||||
Only one such bean can be present.
|
||||
The function is provided with the consumer group, the failed <code>ConsumerRecord</code> and the exception.
|
||||
For example, if you always want to route to partition 0, you might use:</p>
|
||||
</div>
|
||||
<div class="exampleblock">
|
||||
<div class="content">
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Bean
|
||||
public DlqPartitionFunction partitionFunction() {
|
||||
return (group, record, ex) -> 0;
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock note">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-note" title="Note"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
If you set a consumer binding’s <code>dlqPartitions</code> property to 1 (and the binder’s <code>minPartitionCount</code> is equal to <code>1</code>), there is no need to supply a <code>DlqPartitionFunction</code>; the framework will always use partition 0.
|
||||
If you set a consumer binding’s <code>dlqPartitions</code> property to a value greater than <code>1</code> (or the binder’s <code>minPartitionCount</code> is greater than <code>1</code>), you <strong>must</strong> provide a <code>DlqPartitionFunction</code> bean, even if the partition count is the same as the original topic’s.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect3">
|
||||
<h4 id="dlq-handling"><a class="link" href="#dlq-handling">Handling Records in a Dead-Letter Topic</a></h4>
|
||||
<div class="paragraph">
|
||||
<p>Because the framework cannot anticipate how users would want to dispose of dead-lettered messages, it does not provide any standard mechanism to handle them.
|
||||
If the reason for the dead-lettering is transient, you may wish to route the messages back to the original topic.
|
||||
However, if the problem is a permanent issue, that could cause an infinite loop.
|
||||
The sample Spring Boot application within this topic is an example of how to route those messages back to the original topic, but it moves them to a “parking lot” topic after three attempts.
|
||||
The application is another spring-cloud-stream application that reads from the dead-letter topic.
|
||||
It terminates when no messages are received for 5 seconds.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The examples assume the original destination is <code>so8400out</code> and the consumer group is <code>so8400</code>.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>There are a couple of strategies to consider:</p>
|
||||
</div>
|
||||
<div class="ulist">
|
||||
<ul>
|
||||
<li>
|
||||
<p>Consider running the rerouting only when the main application is not running.
|
||||
Otherwise, the retries for transient errors are used up very quickly.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p>Alternatively, use a two-stage approach: Use this application to route to a third topic and another to route from there back to the main topic.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The following code listings show the sample application:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.properties</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code>spring.cloud.stream.bindings.input.group=so8400replay
|
||||
spring.cloud.stream.bindings.input.destination=error.so8400out.so8400
|
||||
|
||||
spring.cloud.stream.bindings.output.destination=so8400out
|
||||
|
||||
spring.cloud.stream.bindings.parkingLot.destination=so8400in.parkingLot
|
||||
|
||||
spring.cloud.stream.kafka.binder.configuration.auto.offset.reset=earliest
|
||||
|
||||
spring.cloud.stream.kafka.binder.headers=x-retries</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">Application</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@SpringBootApplication
|
||||
@EnableBinding(TwoOutputProcessor.class)
|
||||
public class ReRouteDlqKApplication implements CommandLineRunner {
|
||||
|
||||
private static final String X_RETRIES_HEADER = "x-retries";
|
||||
|
||||
public static void main(String[] args) {
|
||||
SpringApplication.run(ReRouteDlqKApplication.class, args).close();
|
||||
}
|
||||
|
||||
private final AtomicInteger processed = new AtomicInteger();
|
||||
|
||||
@Autowired
|
||||
private MessageChannel parkingLot;
|
||||
|
||||
@StreamListener(Processor.INPUT)
|
||||
@SendTo(Processor.OUTPUT)
|
||||
public Message<?> reRoute(Message<?> failed) {
|
||||
processed.incrementAndGet();
|
||||
Integer retries = failed.getHeaders().get(X_RETRIES_HEADER, Integer.class);
|
||||
if (retries == null) {
|
||||
System.out.println("First retry for " + failed);
|
||||
return MessageBuilder.fromMessage(failed)
|
||||
.setHeader(X_RETRIES_HEADER, new Integer(1))
|
||||
.setHeader(BinderHeaders.PARTITION_OVERRIDE,
|
||||
failed.getHeaders().get(KafkaHeaders.RECEIVED_PARTITION_ID))
|
||||
.build();
|
||||
}
|
||||
else if (retries.intValue() < 3) {
|
||||
System.out.println("Another retry for " + failed);
|
||||
return MessageBuilder.fromMessage(failed)
|
||||
.setHeader(X_RETRIES_HEADER, new Integer(retries.intValue() + 1))
|
||||
.setHeader(BinderHeaders.PARTITION_OVERRIDE,
|
||||
failed.getHeaders().get(KafkaHeaders.RECEIVED_PARTITION_ID))
|
||||
.build();
|
||||
}
|
||||
else {
|
||||
System.out.println("Retries exhausted for " + failed);
|
||||
parkingLot.send(MessageBuilder.fromMessage(failed)
|
||||
.setHeader(BinderHeaders.PARTITION_OVERRIDE,
|
||||
failed.getHeaders().get(KafkaHeaders.RECEIVED_PARTITION_ID))
|
||||
.build());
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run(String... args) throws Exception {
|
||||
while (true) {
|
||||
int count = this.processed.get();
|
||||
Thread.sleep(5000);
|
||||
if (count == this.processed.get()) {
|
||||
System.out.println("Idle, terminating");
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public interface TwoOutputProcessor extends Processor {
|
||||
|
||||
@Output("parkingLot")
|
||||
MessageChannel parkingLot();
|
||||
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/tocbot/tocbot.min.js"></script>
|
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<script type="text/javascript" src="js/toc.js"></script>
|
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<link rel="stylesheet" href="js/highlight/styles/atom-one-dark-reasonable.min.css">
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|
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<script>hljs.initHighlighting()</script>
|
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|
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</html>
|
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2
spring-cloud-stream-binder-kafka/3.0.5.RELEASE/reference/html/js/highlight/highlight.min.js
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.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;
|
||||
}
|
||||
@@ -0,0 +1,79 @@
|
||||
/**
|
||||
* GitHub Gist Theme
|
||||
* Author : Anthony Attard - https://github.com/AnthonyAttard
|
||||
* Author : Louis Barranqueiro - https://github.com/LouisBarranqueiro
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
background: white;
|
||||
padding: 0.5em;
|
||||
color: #333333;
|
||||
overflow-x: auto;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-meta {
|
||||
color: #969896;
|
||||
}
|
||||
|
||||
.hljs-variable,
|
||||
.hljs-template-variable,
|
||||
.hljs-strong,
|
||||
.hljs-emphasis,
|
||||
.hljs-quote {
|
||||
color: #df5000;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-type {
|
||||
color: #d73a49;
|
||||
}
|
||||
|
||||
.hljs-literal,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-attribute {
|
||||
color: #0086b3;
|
||||
}
|
||||
|
||||
.hljs-section,
|
||||
.hljs-name {
|
||||
color: #63a35c;
|
||||
}
|
||||
|
||||
.hljs-tag {
|
||||
color: #333333;
|
||||
}
|
||||
|
||||
.hljs-title,
|
||||
.hljs-attr,
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo {
|
||||
color: #6f42c1;
|
||||
}
|
||||
|
||||
.hljs-addition {
|
||||
color: #55a532;
|
||||
background-color: #eaffea;
|
||||
}
|
||||
|
||||
.hljs-deletion {
|
||||
color: #bd2c00;
|
||||
background-color: #ffecec;
|
||||
}
|
||||
|
||||
.hljs-link {
|
||||
text-decoration: underline;
|
||||
}
|
||||
|
||||
.hljs-number {
|
||||
color: #005cc5;
|
||||
}
|
||||
|
||||
.hljs-string {
|
||||
color: #032f62;
|
||||
}
|
||||
99
spring-cloud-stream-binder-kafka/3.0.5.RELEASE/reference/html/js/highlight/styles/github.min.css
vendored
Normal file
99
spring-cloud-stream-binder-kafka/3.0.5.RELEASE/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;
|
||||
}
|
||||
@@ -0,0 +1,89 @@
|
||||
/*
|
||||
|
||||
Google Code style (c) Aahan Krish <geekpanth3r@gmail.com>
|
||||
|
||||
*/
|
||||
|
||||
.hljs {
|
||||
display: block;
|
||||
overflow-x: auto;
|
||||
padding: 0.5em;
|
||||
background: white;
|
||||
color: black;
|
||||
}
|
||||
|
||||
.hljs-comment,
|
||||
.hljs-quote {
|
||||
color: #800;
|
||||
}
|
||||
|
||||
.hljs-keyword,
|
||||
.hljs-selector-tag,
|
||||
.hljs-section,
|
||||
.hljs-title,
|
||||
.hljs-name {
|
||||
color: #008;
|
||||
}
|
||||
|
||||
.hljs-variable,
|
||||
.hljs-template-variable {
|
||||
color: #660;
|
||||
}
|
||||
|
||||
.hljs-string,
|
||||
.hljs-selector-attr,
|
||||
.hljs-selector-pseudo,
|
||||
.hljs-regexp {
|
||||
color: #080;
|
||||
}
|
||||
|
||||
.hljs-literal,
|
||||
.hljs-symbol,
|
||||
.hljs-bullet,
|
||||
.hljs-meta,
|
||||
.hljs-number,
|
||||
.hljs-link {
|
||||
color: #066;
|
||||
}
|
||||
|
||||
.hljs-title,
|
||||
.hljs-doctag,
|
||||
.hljs-type,
|
||||
.hljs-attr,
|
||||
.hljs-built_in,
|
||||
.hljs-builtin-name,
|
||||
.hljs-params {
|
||||
color: #606;
|
||||
}
|
||||
|
||||
.hljs-attribute,
|
||||
.hljs-subst {
|
||||
color: #000;
|
||||
}
|
||||
|
||||
.hljs-formula {
|
||||
background-color: #eee;
|
||||
font-style: italic;
|
||||
}
|
||||
|
||||
.hljs-selector-id,
|
||||
.hljs-selector-class {
|
||||
color: #9B703F
|
||||
}
|
||||
|
||||
.hljs-addition {
|
||||
background-color: #baeeba;
|
||||
}
|
||||
|
||||
.hljs-deletion {
|
||||
background-color: #ffc8bd;
|
||||
}
|
||||
|
||||
.hljs-doctag,
|
||||
.hljs-strong {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
.hljs-emphasis {
|
||||
font-style: italic;
|
||||
}
|
||||
@@ -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;
|
||||
}
|
||||
@@ -0,0 +1,80 @@
|
||||
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");
|
||||
if (document.getElementById('index-link')) {
|
||||
indexLinkElement = document.querySelector('#index-link > p > a');
|
||||
linkHref = indexLinkElement.getAttribute("href");
|
||||
link.setAttribute("href", linkHref);
|
||||
} else {
|
||||
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' +
|
||||
'v0.1c0,6.8-4.7,10.7-9.6,10.7c-3.4,0-5.6-1.7-7-3.6V37c0,1.3-1.1,2.4-2.4,2.4c-1.3,0-2.3-1-2.3-2.4V14.3z M89.1,22.7L89.1,22.7\n' +
|
||||
'c0-4.1-2.7-6.7-5.9-6.7c-3.2,0-6,2.7-6,6.6v0.1c0,4,2.8,6.6,6,6.6C86.4,29.3,89.1,26.7,89.1,22.7z"/>\n' +
|
||||
'<path class="st0" d="M95.7,14.3c0-1.3,1-2.4,2.3-2.4c1.3,0,2.4,1.1,2.4,2.4v1.1c0.2-1.8,3.1-3.5,5.2-3.5c1.5,0,2.3,1,2.3,2.3\n' +
|
||||
'c0,1.3-0.8,2.1-1.9,2.3c-3.4,0.6-5.7,3.5-5.7,7.6V31c0,1.3-1.1,2.3-2.4,2.3c-1.3,0-2.3-1-2.3-2.3V14.3z"/>\n' +
|
||||
'<path class="st0" d="M109.7,14.3c0-1.3,1-2.4,2.3-2.4c1.3,0,2.4,1.1,2.4,2.4V31c0,1.3-1.1,2.3-2.4,2.3c-1.3,0-2.3-1-2.3-2.3V14.3\n' +
|
||||
'z"/>\n' +
|
||||
'<path class="st0" d="M116.9,14.3c0-1.3,1-2.4,2.3-2.4c1.3,0,2.4,1.1,2.4,2.4v1c1.3-1.9,3.2-3.4,6.5-3.4c4.7,0,7.4,3.1,7.4,7.9V31\n' +
|
||||
'c0,1.3-1,2.3-2.3,2.3c-1.3,0-2.4-1-2.4-2.3v-9.7c0-3.2-1.6-5-4.4-5c-2.7,0-4.7,1.9-4.7,5.1V31c0,1.3-1.1,2.3-2.4,2.3\n' +
|
||||
'c-1.3,0-2.3-1-2.3-2.3V14.3z"/>\n' +
|
||||
'<path class="st0" d="M156.2,11.9c-1.3,0-2.4,1.1-2.4,2.4v1.4c-1.5-2.2-3.7-3.9-7-3.9c-4.9,0-9.6,3.8-9.6,10.7v0.1\n' +
|
||||
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1
spring-cloud-stream-binder-kafka/3.0.5.RELEASE/reference/html/js/tocbot/tocbot.min.js
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||||
<div id="toc" class="toc2">
|
||||
<div id="toctitle">Table of Contents</div>
|
||||
<ul class="sectlevel2">
|
||||
<li><a href="#_partitioning_with_the_kafka_binder">Partitioning with the Kafka Binder</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="content">
|
||||
<div class="sect2">
|
||||
<h3 id="_partitioning_with_the_kafka_binder"><a class="link" href="#_partitioning_with_the_kafka_binder">Partitioning with the Kafka Binder</a></h3>
|
||||
<div class="paragraph">
|
||||
<p>Apache Kafka supports topic partitioning natively.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Sometimes it is advantageous to send data to specific partitions — for example, when you want to strictly order message processing (all messages for a particular customer should go to the same partition).</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The following example shows how to configure the producer and consumer side:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@SpringBootApplication
|
||||
@EnableBinding(Source.class)
|
||||
public class KafkaPartitionProducerApplication {
|
||||
|
||||
private static final Random RANDOM = new Random(System.currentTimeMillis());
|
||||
|
||||
private static final String[] data = new String[] {
|
||||
"foo1", "bar1", "qux1",
|
||||
"foo2", "bar2", "qux2",
|
||||
"foo3", "bar3", "qux3",
|
||||
"foo4", "bar4", "qux4",
|
||||
};
|
||||
|
||||
public static void main(String[] args) {
|
||||
new SpringApplicationBuilder(KafkaPartitionProducerApplication.class)
|
||||
.web(false)
|
||||
.run(args);
|
||||
}
|
||||
|
||||
@InboundChannelAdapter(channel = Source.OUTPUT, poller = @Poller(fixedRate = "5000"))
|
||||
public Message<?> generate() {
|
||||
String value = data[RANDOM.nextInt(data.length)];
|
||||
System.out.println("Sending: " + value);
|
||||
return MessageBuilder.withPayload(value)
|
||||
.setHeader("partitionKey", value)
|
||||
.build();
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yaml hljs" data-lang="yaml">spring:
|
||||
cloud:
|
||||
stream:
|
||||
bindings:
|
||||
output:
|
||||
destination: partitioned.topic
|
||||
producer:
|
||||
partition-key-expression: headers['partitionKey']
|
||||
partition-count: 12</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="admonitionblock important">
|
||||
<table>
|
||||
<tr>
|
||||
<td class="icon">
|
||||
<i class="fa icon-important" title="Important"></i>
|
||||
</td>
|
||||
<td class="content">
|
||||
The topic must be provisioned to have enough partitions to achieve the desired concurrency for all consumer groups.
|
||||
The above configuration supports up to 12 consumer instances (6 if their <code>concurrency</code> is 2, 4 if their concurrency is 3, and so on).
|
||||
It is generally best to “over-provision” the partitions to allow for future increases in consumers or concurrency.
|
||||
</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">
|
||||
The preceding configuration uses the default partitioning (<code>key.hashCode() % partitionCount</code>).
|
||||
This may or may not provide a suitably balanced algorithm, depending on the key values.
|
||||
You can override this default by using the <code>partitionSelectorExpression</code> or <code>partitionSelectorClass</code> properties.
|
||||
</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Since partitions are natively handled by Kafka, no special configuration is needed on the consumer side.
|
||||
Kafka allocates partitions across the instances.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>The following Spring Boot application listens to a Kafka stream and prints (to the console) the partition ID to which each message goes:</p>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@SpringBootApplication
|
||||
@EnableBinding(Sink.class)
|
||||
public class KafkaPartitionConsumerApplication {
|
||||
|
||||
public static void main(String[] args) {
|
||||
new SpringApplicationBuilder(KafkaPartitionConsumerApplication.class)
|
||||
.web(false)
|
||||
.run(args);
|
||||
}
|
||||
|
||||
@StreamListener(Sink.INPUT)
|
||||
public void listen(@Payload String in, @Header(KafkaHeaders.RECEIVED_PARTITION_ID) int partition) {
|
||||
System.out.println(in + " received from partition " + partition);
|
||||
}
|
||||
|
||||
}</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="listingblock">
|
||||
<div class="title">application.yml</div>
|
||||
<div class="content">
|
||||
<pre class="highlightjs highlight"><code class="language-yaml hljs" data-lang="yaml">spring:
|
||||
cloud:
|
||||
stream:
|
||||
bindings:
|
||||
input:
|
||||
destination: partitioned.topic
|
||||
group: myGroup</code></pre>
|
||||
</div>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>You can add instances as needed.
|
||||
Kafka rebalances the partition allocations.
|
||||
If the instance count (or <code>instance count * concurrency</code>) exceeds the number of partitions, some consumers are idle.</p>
|
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</div>
|
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</div>
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</html>
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@@ -0,0 +1,99 @@
|
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/*
|
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github.com style (c) Vasily Polovnyov <vast@whiteants.net>
|
||||
|
||||
*/
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padding: 0.5em;
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font-weight: bold;
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.hljs-tag,
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font-weight: bold;
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}
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/*
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Google Code style (c) Aahan Krish <geekpanth3r@gmail.com>
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*/
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.hljs {
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.hljs-literal,
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color: #066;
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.hljs-title,
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.hljs-attribute,
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.hljs-selector-id,
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color: #9B703F
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}
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.hljs-addition {
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}
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.hljs-deletion {
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}
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.hljs-doctag,
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font-style: italic;
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}
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@@ -0,0 +1,84 @@
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/*
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Orginal Style from ethanschoonover.com/solarized (c) Jeremy Hull <sourdrums@gmail.com>
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*/
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.hljs {
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display: block;
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overflow-x: auto;
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padding: 0.5em;
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background: #fdf6e3;
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color: #657b83;
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.hljs-comment,
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.hljs-quote {
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color: #93a1a1;
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}
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/* Solarized Green */
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.hljs-keyword,
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.hljs-selector-tag,
|
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.hljs-addition {
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color: #859900;
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}
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/* Solarized Cyan */
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.hljs-number,
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.hljs-string,
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.hljs-meta .hljs-meta-string,
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.hljs-literal,
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.hljs-doctag,
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.hljs-regexp {
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color: #2aa198;
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}
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/* Solarized Blue */
|
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.hljs-title,
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.hljs-section,
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.hljs-name,
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.hljs-selector-id,
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.hljs-selector-class {
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color: #268bd2;
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}
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/* Solarized Yellow */
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.hljs-attribute,
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.hljs-attr,
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.hljs-variable,
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.hljs-template-variable,
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.hljs-class .hljs-title,
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.hljs-type {
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color: #b58900;
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}
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/* Solarized Orange */
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.hljs-symbol,
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.hljs-bullet,
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.hljs-subst,
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.hljs-meta,
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.hljs-meta .hljs-keyword,
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.hljs-selector-attr,
|
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.hljs-selector-pseudo,
|
||||
.hljs-link {
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color: #cb4b16;
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}
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/* Solarized Red */
|
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.hljs-built_in,
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.hljs-deletion {
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color: #dc322f;
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}
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.hljs-formula {
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background: #eee8d5;
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}
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.hljs-emphasis {
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font-style: italic;
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}
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.hljs-strong {
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font-weight: bold;
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}
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@@ -0,0 +1,80 @@
|
||||
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");
|
||||
if (document.getElementById('index-link')) {
|
||||
indexLinkElement = document.querySelector('#index-link > p > a');
|
||||
linkHref = indexLinkElement.getAttribute("href");
|
||||
link.setAttribute("href", linkHref);
|
||||
} else {
|
||||
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' +
|
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'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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'<g>\n' +
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'z"/>\n' +
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'c-1.3,0-2.3-1-2.3-2.3V14.3z"/>\n' +
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'c-1.1,0-2,0.9-2,2c0,0.9,0.5,1.6,1.3,1.9c2.5,1.2,5.1,1.8,8,1.8c3.7,0,6.6-0.9,8.5-2.8c1.7-1.7,2.7-4.3,2.7-7.8V14.3\n' +
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'<path class="st0" d="M114.5,6.3c0,1.3-1.1,2.4-2.4,2.4c-1.3,0-2.4-1.1-2.4-2.4c0-1.3,1.1-2.4,2.4-2.4\n' +
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'</g>\n' +
|
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'</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-stream-binder-kafka/3.0.5.RELEASE/reference/htmlsingle/js/tocbot/tocbot.min.js
vendored
Normal file
1
spring-cloud-stream-binder-kafka/3.0.5.RELEASE/reference/htmlsingle/js/tocbot/tocbot.min.js
vendored
Normal file
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user