Sync docs from v1.0.0.RELEASE to gh-pages

This commit is contained in:
buildmaster
2017-11-22 00:56:06 +00:00
parent b6f8931b75
commit ce951794d0
48 changed files with 1722 additions and 0 deletions

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/*
code highlight CSS resemblign the Eclipse IDE default color schema
@author Costin Leau
*/
.hl-keyword {
color: #7F0055;
font-weight: bold;
}
.hl-comment {
color: #3F5F5F;
font-style: italic;
}
.hl-multiline-comment {
color: #3F5FBF;
font-style: italic;
}
.hl-tag {
color: #3F7F7F;
}
.hl-attribute {
color: #7F007F;
}
.hl-value {
color: #2A00FF;
}
.hl-string {
color: #2A00FF;
}

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@IMPORT url("manual.css");
body.firstpage {
background: url("../images/background.png") no-repeat center top;
}
div.part h1 {
border-top: none;
}

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@IMPORT url("manual.css");
body {
background: url("../images/background.png") no-repeat center top;
}

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@IMPORT url("highlight.css");
html {
padding: 0pt;
margin: 0pt;
}
body {
color: #333333;
margin: 15px 30px;
font-family: Helvetica, Arial, Freesans, Clean, Sans-serif;
line-height: 1.6;
-webkit-font-smoothing: antialiased;
}
code {
font-size: 16px;
font-family: Consolas, "Liberation Mono", Courier, monospace;
}
:not(a)>code {
color: #6D180B;
}
:not(pre)>code {
background-color: #F2F2F2;
border: 1px solid #CCCCCC;
border-radius: 4px;
padding: 1px 3px 0;
text-shadow: none;
white-space: nowrap;
}
body>*:first-child {
margin-top: 0 !important;
}
div {
margin: 0pt;
}
hr {
border: 1px solid #CCCCCC;
background: #CCCCCC;
}
h1,h2,h3,h4,h5,h6 {
color: #000000;
cursor: text;
font-weight: bold;
margin: 30px 0 10px;
padding: 0;
}
h1,h2,h3 {
margin: 40px 0 10px;
}
h1 {
margin: 70px 0 30px;
padding-top: 20px;
}
div.part h1 {
border-top: 1px dotted #CCCCCC;
}
h1,h1 code {
font-size: 32px;
}
h2,h2 code {
font-size: 24px;
}
h3,h3 code {
font-size: 20px;
}
h4,h1 code,h5,h5 code,h6,h6 code {
font-size: 18px;
}
div.book,div.chapter,div.appendix,div.part,div.preface {
min-width: 300px;
max-width: 1200px;
margin: 0 auto;
}
p.releaseinfo {
font-weight: bold;
margin-bottom: 40px;
margin-top: 40px;
}
div.authorgroup {
line-height: 1;
}
p.copyright {
line-height: 1;
margin-bottom: -5px;
}
.legalnotice p {
font-style: italic;
font-size: 14px;
line-height: 1;
}
div.titlepage+p,div.titlepage+p {
margin-top: 0;
}
pre {
line-height: 1.0;
color: black;
}
a {
color: #4183C4;
text-decoration: none;
}
p {
margin: 15px 0;
text-align: left;
}
ul,ol {
padding-left: 30px;
}
li p {
margin: 0;
}
div.table {
margin: 1em;
padding: 0.5em;
text-align: center;
}
div.table table,div.informaltable table {
display: table;
width: 100%;
}
div.table td {
padding-left: 7px;
padding-right: 7px;
}
.sidebar {
line-height: 1.4;
padding: 0 20px;
background-color: #F8F8F8;
border: 1px solid #CCCCCC;
border-radius: 3px 3px 3px 3px;
}
.sidebar p.title {
color: #6D180B;
}
pre.programlisting,pre.screen {
font-size: 15px;
padding: 6px 10px;
background-color: #F8F8F8;
border: 1px solid #CCCCCC;
border-radius: 3px 3px 3px 3px;
clear: both;
overflow: auto;
line-height: 1.4;
font-family: Consolas, "Liberation Mono", Courier, monospace;
}
table {
border-collapse: collapse;
border-spacing: 0;
border: 1px solid #DDDDDD !important;
border-radius: 4px !important;
border-collapse: separate !important;
line-height: 1.6;
}
table thead {
background: #F5F5F5;
}
table tr {
border: none;
border-bottom: none;
}
table th {
font-weight: bold;
}
table th,table td {
border: none !important;
padding: 6px 13px;
}
table tr:nth-child(2n) {
background-color: #F8F8F8;
}
td p {
margin: 0 0 15px 0;
}
div.table-contents td p {
margin: 0;
}
div.important *,div.note *,div.tip *,div.warning *,div.navheader *,div.navfooter *,div.calloutlist *
{
border: none !important;
background: none !important;
margin: 0;
}
div.important p,div.note p,div.tip p,div.warning p {
color: #6F6F6F;
line-height: 1.6;
}
div.important code,div.note code,div.tip code,div.warning code {
background-color: #F2F2F2 !important;
border: 1px solid #CCCCCC !important;
border-radius: 4px !important;
padding: 1px 3px 0 !important;
text-shadow: none !important;
white-space: nowrap !important;
}
.note th,.tip th,.warning th {
display: none;
}
.note tr:first-child td,.tip tr:first-child td,.warning tr:first-child td
{
border-right: 1px solid #CCCCCC !important;
padding-top: 10px;
}
div.calloutlist p,div.calloutlist td {
padding: 0;
margin: 0;
}
div.calloutlist>table>tbody>tr>td:first-child {
padding-left: 10px;
width: 30px !important;
}
div.important,div.note,div.tip,div.warning {
margin-left: 0px !important;
margin-right: 20px !important;
margin-top: 20px;
margin-bottom: 20px;
padding-top: 10px;
padding-bottom: 10px;
}
div.toc {
line-height: 1.2;
}
dl,dt {
margin-top: 1px;
margin-bottom: 0;
}
div.toc>dl>dt {
font-size: 32px;
font-weight: bold;
margin: 30px 0 10px 0;
display: block;
}
div.toc>dl>dd>dl>dt {
font-size: 24px;
font-weight: bold;
margin: 20px 0 10px 0;
display: block;
}
div.toc>dl>dd>dl>dd>dl>dt {
font-weight: bold;
font-size: 20px;
margin: 10px 0 0 0;
}
tbody.footnotes * {
border: none !important;
}
div.footnote p {
margin: 0;
line-height: 1;
}
div.footnote p sup {
margin-right: 6px;
vertical-align: middle;
}
div.navheader {
border-bottom: 1px solid #CCCCCC;
}
div.navfooter {
border-top: 1px solid #CCCCCC;
}
.title {
margin-left: -1em;
padding-left: 1em;
}
.title>a {
position: absolute;
visibility: hidden;
display: block;
font-size: 0.85em;
margin-top: 0.05em;
margin-left: -1em;
vertical-align: text-top;
color: black;
}
.title>a:before {
content: "\00A7";
}
.title:hover>a,.title>a:hover,.title:hover>a:hover {
visibility: visible;
}
.title:focus>a,.title>a:focus,.title:focus>a:focus {
outline: 0;
}

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#!/bin/bash -x
set -e
# Set default props like MAVEN_PATH, ROOT_FOLDER etc.
function set_default_props() {
# The script should be executed from the root folder
ROOT_FOLDER=`pwd`
echo "Current folder is ${ROOT_FOLDER}"
if [[ ! -e "${ROOT_FOLDER}/.git" ]]; then
echo "You're not in the root folder of the project!"
exit 1
fi
# Prop that will let commit the changes
COMMIT_CHANGES="no"
MAVEN_PATH=${MAVEN_PATH:-}
echo "Path to Maven is [${MAVEN_PATH}]"
REPO_NAME=${PWD##*/}
echo "Repo name is [${REPO_NAME}]"
SPRING_CLOUD_STATIC_REPO=${SPRING_CLOUD_STATIC_REPO:-git@github.com:spring-cloud/spring-cloud-static.git}
echo "Spring Cloud Static repo is [${SPRING_CLOUD_STATIC_REPO}"
}
# Check if gh-pages exists and docs have been built
function check_if_anything_to_sync() {
git remote set-url --push origin `git config remote.origin.url | sed -e 's/^git:/https:/'`
if ! (git remote set-branches --add origin gh-pages && git fetch -q); then
echo "No gh-pages, so not syncing"
exit 0
fi
if ! [ -d docs/target/generated-docs ] && ! [ "${BUILD}" == "yes" ]; then
echo "No gh-pages sources in docs/target/generated-docs, so not syncing"
exit 0
fi
}
function retrieve_current_branch() {
# Code getting the name of the current branch. For master we want to publish as we did until now
# http://stackoverflow.com/questions/1593051/how-to-programmatically-determine-the-current-checked-out-git-branch
# If there is a branch already passed will reuse it - otherwise will try to find it
CURRENT_BRANCH=${BRANCH}
if [[ -z "${CURRENT_BRANCH}" ]] ; then
CURRENT_BRANCH=$(git symbolic-ref -q HEAD)
CURRENT_BRANCH=${CURRENT_BRANCH##refs/heads/}
CURRENT_BRANCH=${CURRENT_BRANCH:-HEAD}
fi
echo "Current branch is [${CURRENT_BRANCH}]"
git checkout ${CURRENT_BRANCH} || echo "Failed to check the branch... continuing with the script"
}
# Switches to the provided value of the release version. We always prefix it with `v`
function switch_to_tag() {
git checkout v${VERSION}
}
# Build the docs if switch is on
function build_docs_if_applicable() {
if [[ "${BUILD}" == "yes" ]] ; then
./mvnw clean install -P docs -pl docs -DskipTests
fi
}
# Get the name of the `docs.main` property
# Get whitelisted branches - assumes that a `docs` module is available under `docs` profile
function retrieve_doc_properties() {
MAIN_ADOC_VALUE=$("${MAVEN_PATH}"mvn -q \
-Dexec.executable="echo" \
-Dexec.args='${docs.main}' \
--non-recursive \
org.codehaus.mojo:exec-maven-plugin:1.3.1:exec)
echo "Extracted 'main.adoc' from Maven build [${MAIN_ADOC_VALUE}]"
WHITELIST_PROPERTY=${WHITELIST_PROPERTY:-"docs.whitelisted.branches"}
WHITELISTED_BRANCHES_VALUE=$("${MAVEN_PATH}"mvn -q \
-Dexec.executable="echo" \
-Dexec.args="\${${WHITELIST_PROPERTY}}" \
org.codehaus.mojo:exec-maven-plugin:1.3.1:exec \
-P docs \
-pl docs)
echo "Extracted '${WHITELIST_PROPERTY}' from Maven build [${WHITELISTED_BRANCHES_VALUE}]"
}
# Stash any outstanding changes
function stash_changes() {
git diff-index --quiet HEAD && dirty=$? || (echo "Failed to check if the current repo is dirty. Assuming that it is." && dirty="1")
if [ "$dirty" != "0" ]; then git stash; fi
}
# Switch to gh-pages branch to sync it with current branch
function add_docs_from_target() {
local DESTINATION_REPO_FOLDER
if [[ -z "${DESTINATION}" && -z "${CLONE}" ]] ; then
DESTINATION_REPO_FOLDER=${ROOT_FOLDER}
elif [[ "${CLONE}" == "yes" ]]; then
mkdir -p ${ROOT_FOLDER}/target
local clonedStatic=${ROOT_FOLDER}/target/spring-cloud-static
if [[ ! -e "${clonedStatic}/.git" ]]; then
echo "Cloning Spring Cloud Static to target"
git clone ${SPRING_CLOUD_STATIC_REPO} ${clonedStatic} && git checkout gh-pages
else
echo "Spring Cloud Static already cloned - will pull changes"
cd ${clonedStatic} && git checkout gh-pages && git pull origin gh-pages
fi
DESTINATION_REPO_FOLDER=${clonedStatic}/${REPO_NAME}
mkdir -p ${DESTINATION_REPO_FOLDER}
else
if [[ ! -e "${DESTINATION}/.git" ]]; then
echo "[${DESTINATION}] is not a git repository"
exit 1
fi
DESTINATION_REPO_FOLDER=${DESTINATION}/${REPO_NAME}
mkdir -p ${DESTINATION_REPO_FOLDER}
echo "Destination was provided [${DESTINATION}]"
fi
cd ${DESTINATION_REPO_FOLDER}
git checkout gh-pages
git pull origin gh-pages
# Add git branches
###################################################################
if [[ -z "${VERSION}" ]] ; then
copy_docs_for_current_version
else
copy_docs_for_provided_version
fi
commit_changes_if_applicable
}
# Copies the docs by using the retrieved properties from Maven build
function copy_docs_for_current_version() {
if [[ "${CURRENT_BRANCH}" == "master" ]] ; then
echo -e "Current branch is master - will copy the current docs only to the root folder"
for f in docs/target/generated-docs/*; do
file=${f#docs/target/generated-docs/*}
if ! git ls-files -i -o --exclude-standard --directory | grep -q ^$file$; then
# Not ignored...
cp -rf $f ${ROOT_FOLDER}/
git add -A ${ROOT_FOLDER}/$file
fi
done
COMMIT_CHANGES="yes"
else
echo -e "Current branch is [${CURRENT_BRANCH}]"
# http://stackoverflow.com/questions/29300806/a-bash-script-to-check-if-a-string-is-present-in-a-comma-separated-list-of-strin
if [[ ",${WHITELISTED_BRANCHES_VALUE}," = *",${CURRENT_BRANCH},"* ]] ; then
mkdir -p ${ROOT_FOLDER}/${CURRENT_BRANCH}
echo -e "Branch [${CURRENT_BRANCH}] is whitelisted! Will copy the current docs to the [${CURRENT_BRANCH}] folder"
for f in docs/target/generated-docs/*; do
file=${f#docs/target/generated-docs/*}
if ! git ls-files -i -o --exclude-standard --directory | grep -q ^$file$; then
# Not ignored...
# We want users to access 1.0.0.RELEASE/ instead of 1.0.0.RELEASE/spring-cloud.sleuth.html
if [[ "${file}" == "${MAIN_ADOC_VALUE}.html" ]] ; then
# We don't want to copy the spring-cloud-sleuth.html
# we want it to be converted to index.html
cp -rf $f ${ROOT_FOLDER}/${CURRENT_BRANCH}/index.html
git add -A ${ROOT_FOLDER}/${CURRENT_BRANCH}/index.html
else
cp -rf $f ${ROOT_FOLDER}/${CURRENT_BRANCH}
git add -A ${ROOT_FOLDER}/${CURRENT_BRANCH}/$file
fi
fi
done
COMMIT_CHANGES="yes"
else
echo -e "Branch [${CURRENT_BRANCH}] is not on the white list! Check out the Maven [${WHITELIST_PROPERTY}] property in
[docs] module available under [docs] profile. Won't commit any changes to gh-pages for this branch."
fi
fi
}
# Copies the docs by using the explicitly provided version
function copy_docs_for_provided_version() {
local FOLDER=${DESTINATION_REPO_FOLDER}/${VERSION}
mkdir -p ${FOLDER}
echo -e "Current tag is [v${VERSION}] Will copy the current docs to the [${FOLDER}] folder"
for f in ${ROOT_FOLDER}/docs/target/generated-docs/*; do
file=${f#${ROOT_FOLDER}/docs/target/generated-docs/*}
copy_docs_for_branch ${file} ${FOLDER}
done
COMMIT_CHANGES="yes"
CURRENT_BRANCH="v${VERSION}"
}
# Copies the docs from target to the provided destination
# Params:
# $1 - file from target
# $2 - destination to which copy the files
function copy_docs_for_branch() {
local file=$1
local destination=$2
if ! git ls-files -i -o --exclude-standard --directory | grep -q ^${file}$; then
# Not ignored...
# We want users to access 1.0.0.RELEASE/ instead of 1.0.0.RELEASE/spring-cloud.sleuth.html
if [[ ("${file}" == "${MAIN_ADOC_VALUE}.html") || ("${file}" == "${REPO_NAME}.html") ]] ; then
# We don't want to copy the spring-cloud-sleuth.html
# we want it to be converted to index.html
cp -rf $f ${destination}/index.html
git add -A ${destination}/index.html
else
cp -rf $f ${destination}
git add -A ${destination}/$file
fi
fi
}
function commit_changes_if_applicable() {
if [[ "${COMMIT_CHANGES}" == "yes" ]] ; then
COMMIT_SUCCESSFUL="no"
git commit -a -m "Sync docs from ${CURRENT_BRANCH} to gh-pages" && COMMIT_SUCCESSFUL="yes" || echo "Failed to commit changes"
# Uncomment the following push if you want to auto push to
# the gh-pages branch whenever you commit to master locally.
# This is a little extreme. Use with care!
###################################################################
if [[ "${COMMIT_SUCCESSFUL}" == "yes" ]] ; then
git push origin gh-pages
fi
fi
}
# Switch back to the previous branch and exit block
function checkout_previous_branch() {
# If -version was provided we need to come back to root project
cd ${ROOT_FOLDER}
git checkout ${CURRENT_BRANCH} || echo "Failed to check the branch... continuing with the script"
if [ "$dirty" != "0" ]; then git stash pop; fi
exit 0
}
# Assert if properties have been properly passed
function assert_properties() {
echo "VERSION [${VERSION}], DESTINATION [${DESTINATION}], CLONE [${CLONE}]"
if [[ "${VERSION}" != "" && (-z "${DESTINATION}" && -z "${CLONE}") ]] ; then echo "Version was set but destination / clone was not!"; exit 1;fi
if [[ ("${DESTINATION}" != "" && "${CLONE}" != "") && -z "${VERSION}" ]] ; then echo "Destination / clone was set but version was not!"; exit 1;fi
if [[ "${DESTINATION}" != "" && "${CLONE}" == "yes" ]] ; then echo "Destination and clone was set. Pick one!"; exit 1;fi
}
# Prints the usage
function print_usage() {
cat <<EOF
The idea of this script is to update gh-pages branch with the generated docs. Without any options
the script will work in the following manner:
- if there's no gh-pages / target for docs module then the script ends
- for master branch the generated docs are copied to the root of gh-pages branch
- for any other branch (if that branch is whitelisted) a subfolder with branch name is created
and docs are copied there
- if the version switch is passed (-v) then a tag with (v) prefix will be retrieved and a folder
with that version number will be created in the gh-pages branch. WARNING! No whitelist verification will take place
- if the destination switch is passed (-d) then the script will check if the provided dir is a git repo and then will
switch to gh-pages of that repo and copy the generated docs to `docs/<project-name>/<version>`
- if the destination switch is passed (-d) then the script will check if the provided dir is a git repo and then will
switch to gh-pages of that repo and copy the generated docs to `docs/<project-name>/<version>`
USAGE:
You can use the following options:
-v|--version - the script will apply the whole procedure for a particular library version
-d|--destination - the root of destination folder where the docs should be copied. You have to use the full path.
E.g. point to spring-cloud-static folder. Can't be used with (-c)
-b|--build - will run the standard build process after checking out the branch
-c|--clone - will automatically clone the spring-cloud-static repo instead of providing the destination.
Obviously can't be used with (-d)
EOF
}
# ==========================================
# ____ ____ _____ _____ _____ _______
# / ____|/ ____| __ \|_ _| __ \__ __|
# | (___ | | | |__) | | | | |__) | | |
# \___ \| | | _ / | | | ___/ | |
# ____) | |____| | \ \ _| |_| | | |
# |_____/ \_____|_| \_\_____|_| |_|
#
# ==========================================
while [[ $# > 0 ]]
do
key="$1"
case ${key} in
-v|--version)
VERSION="$2"
shift # past argument
;;
-d|--destination)
DESTINATION="$2"
shift # past argument
;;
-b|--build)
BUILD="yes"
;;
-c|--clone)
CLONE="yes"
;;
-h|--help)
print_usage
exit 0
;;
*)
echo "Invalid option: [$1]"
print_usage
exit 1
;;
esac
shift # past argument or value
done
assert_properties
set_default_props
check_if_anything_to_sync
if [[ -z "${VERSION}" ]] ; then
retrieve_current_branch
else
switch_to_tag
fi
build_docs_if_applicable
retrieve_doc_properties
stash_changes
add_docs_from_target
checkout_previous_branch

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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]-->
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="generator" content="Asciidoctor 1.5.5">
<title>spring-cloud-gateway</title>
<link rel="stylesheet" href="css/manual-singlepage.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.selected {
background-color: #7a2519;
color: #ffffff;
}
</style>
<script src="http://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="article">
<div id="header">
<h1>spring-cloud-gateway</h1>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>1.0.0.RELEASE</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_pick_the_documentation_option">Pick The Documentation Option</h2>
<div class="sectionbody">
<div class="ulist">
<ul>
<li>
<p><a href="single/spring-cloud-gateway.html">Single HTML</a></p>
</li>
<li>
<p><a href="multi/multi_spring-cloud-gateway.html">Multi HTML</a></p>
</li>
</ul>
</div>
</div>
</div>
</div>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/prettify.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/prettify.min.js"></script>
<script>prettyPrint()</script>
</body>
</html>

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@@ -0,0 +1,35 @@
/*
code highlight CSS resemblign the Eclipse IDE default color schema
@author Costin Leau
*/
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}
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color: #2A00FF;
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@IMPORT url("manual.css");
body.firstpage {
background: url("../images/background.png") no-repeat center top;
}
div.part h1 {
border-top: none;
}

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@IMPORT url("manual.css");
body {
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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>2.&nbsp;Building a Gateway Using Spring MVC</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="up" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="prev" href="multi_gateway-starter.html" title="1.&nbsp;How to Include Spring Cloud Gateway"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">2.&nbsp;Building a Gateway Using Spring MVC</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_gateway-starter.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;</td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_building_a_gateway_using_spring_mvc" href="#_building_a_gateway_using_spring_mvc"></a>2.&nbsp;Building a Gateway Using Spring MVC</h1></div></div></div><p>Spring Cloud Gateway provides a utility object called <code class="literal">ProxyExchange</code> which you can use inside a regular Spring MVC handler as a method parameter. It supports basic downstream HTTP exchanges via methods that mirror the HTTP verbs, or forwarding to a local handler via the <code class="literal">forward()</code> method.</p><p>Example (proxying a request to "/test" downstream to a remote server):</p><pre class="programlisting"><em><span class="hl-annotation" style="color: gray">@RestController</span></em>
<em><span class="hl-annotation" style="color: gray">@SpringBootApplication</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">public</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">class</span> GatewaySampleApplication {
<em><span class="hl-annotation" style="color: gray">@Value("${remote.home}")</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">private</span> URI home;
<em><span class="hl-annotation" style="color: gray">@GetMapping("/test")</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">public</span> ResponseEntity&lt;?&gt; proxy(ProxyExchange&lt;Object&gt; proxy) <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">throws</span> Exception {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">return</span> proxy.uri(home.toString() + <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/image/png"</span>).get();
}
}</pre><p>There are convenience methods on the <code class="literal">ProxyExchange</code> to enable the handler method to discover and enhance the URI path of the incoming request. For example you might want to extract the trailing elements of a path to pass them downstream:</p><pre class="programlisting"><em><span class="hl-annotation" style="color: gray">@GetMapping("/proxy/path/**")</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">public</span> ResponseEntity&lt;?&gt; proxyPath(ProxyExchange&lt;?&gt; proxy) <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">throws</span> Exception {
String path = proxy.path(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/proxy/path/"</span>);
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">return</span> proxy.uri(home.toString() + <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/foos/"</span> + path).get();
}</pre><p>All the features of Spring MVC are available to Gateway handler methods. So you can inject request headers and query parameters, for instance, and you can constrain the incoming requests with declarations in the mapping annotation. See the documentation for <code class="literal">@RequestMapping</code> in Spring MVC for more details of those features.</p><p>Headers can be added to the downstream response using the <code class="literal">header()</code> methods on <code class="literal">ProxyExchange</code>.</p><p>You can also manipulate response headers (and anything else you like in the response) by adding a mapper to the <code class="literal">get()</code> etc. method. The mapper is a <code class="literal">Function</code> that takes the incoming <code class="literal">ResponseEntity</code> and converts it to an outgoing one.</p><p>First class support is provided for "sensitive" headers ("cookie" and "authorization" by default) which are not passed downstream, and for "proxy" headers (<code class="literal">x-forwarded-*</code>).</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="multi_gateway-starter.html">Prev</a>&nbsp;</td><td width="20%" align="center">&nbsp;</td><td width="40%" align="right">&nbsp;</td></tr><tr><td width="40%" align="left" valign="top">1.&nbsp;How to Include Spring Cloud Gateway&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="multi_spring-cloud-gateway.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;</td></tr></table></div></body></html>

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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>1.&nbsp;How to Include Spring Cloud Gateway</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="up" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="prev" href="multi_pr01.html" title=""><link rel="next" href="multi__building_a_gateway_using_spring_mvc.html" title="2.&nbsp;Building a Gateway Using Spring MVC"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">1.&nbsp;How to Include Spring Cloud Gateway</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_pr01.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi__building_a_gateway_using_spring_mvc.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="gateway-starter" href="#gateway-starter"></a>1.&nbsp;How to Include Spring Cloud Gateway</h1></div></div></div><p>To include Spring Cloud Gateway in your project add a dependency with group <code class="literal">org.springframework.cloud</code> and artifact id <code class="literal">spring-cloud-gateway-mvc</code>. See the <a class="link" href="http://projects.spring.io/spring-cloud/" target="_top">Spring Cloud Project page</a> for details on setting up your build system with the current Spring Cloud Release Train.</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="multi_pr01.html">Prev</a>&nbsp;</td><td width="20%" align="center">&nbsp;</td><td width="40%" align="right">&nbsp;<a accesskey="n" href="multi__building_a_gateway_using_spring_mvc.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="multi_spring-cloud-gateway.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;2.&nbsp;Building a Gateway Using Spring MVC</td></tr></table></div></body></html>

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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title></title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="up" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="prev" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="next" href="multi_gateway-starter.html" title="1.&nbsp;How to Include Spring Cloud Gateway"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_spring-cloud-gateway.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi_gateway-starter.html">Next</a></td></tr></table><hr></div><div class="preface"><div class="titlepage"><div><div><h1 class="title"><a name="d0e9" href="#d0e9"></a></h1></div></div></div><p><span class="strong"><strong>1.0.0.RELEASE</strong></span></p><p>This project provides a library for building an API Gateway on top of Spring MVC. Spring Cloud Gateway aims to provide a simple, yet effective way to route to APIs and provide cross cutting concerns to them such as: security, monitoring/metrics, and resiliency.</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="multi_spring-cloud-gateway.html">Prev</a>&nbsp;</td><td width="20%" align="center">&nbsp;</td><td width="40%" align="right">&nbsp;<a accesskey="n" href="multi_gateway-starter.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Spring Cloud Gateway&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="multi_spring-cloud-gateway.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;1.&nbsp;How to Include Spring Cloud Gateway</td></tr></table></div></body></html>

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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Spring Cloud Gateway</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-gateway.html" title="Spring Cloud Gateway"><link rel="next" href="multi_pr01.html" title=""></head><body class="firstpage" bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Spring Cloud Gateway</th></tr><tr><td width="20%" align="left">&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi_pr01.html">Next</a></td></tr></table><hr></div><div lang="en" class="book"><div class="titlepage"><div><div><h1 class="title"><a name="d0e3"></a>Spring Cloud Gateway</h1></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="preface"><a href="multi_pr01.html"></a></span></dt><dt><span class="chapter"><a href="multi_gateway-starter.html">1. How to Include Spring Cloud Gateway</a></span></dt><dt><span class="chapter"><a href="multi__building_a_gateway_using_spring_mvc.html">2. Building a Gateway Using Spring MVC</a></span></dt></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left">&nbsp;</td><td width="20%" align="center">&nbsp;</td><td width="40%" align="right">&nbsp;<a accesskey="n" href="multi_pr01.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">&nbsp;</td><td width="20%" align="center">&nbsp;</td><td width="40%" align="right" valign="top">&nbsp;</td></tr></table></div></body></html>

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@@ -0,0 +1,35 @@
/*
code highlight CSS resemblign the Eclipse IDE default color schema
@author Costin Leau
*/
.hl-keyword {
color: #7F0055;
font-weight: bold;
}
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color: #3F5F5F;
font-style: italic;
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color: #3F7F7F;
}
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color: #7F007F;
}
.hl-value {
color: #2A00FF;
}
.hl-string {
color: #2A00FF;
}

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@@ -0,0 +1,9 @@
@IMPORT url("manual.css");
body.firstpage {
background: url("../images/background.png") no-repeat center top;
}
div.part h1 {
border-top: none;
}

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@@ -0,0 +1,6 @@
@IMPORT url("manual.css");
body {
background: url("../images/background.png") no-repeat center top;
}

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@@ -0,0 +1,344 @@
@IMPORT url("highlight.css");
html {
padding: 0pt;
margin: 0pt;
}
body {
color: #333333;
margin: 15px 30px;
font-family: Helvetica, Arial, Freesans, Clean, Sans-serif;
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}
code {
font-size: 16px;
font-family: Consolas, "Liberation Mono", Courier, monospace;
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:not(a)>code {
color: #6D180B;
}
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background-color: #F2F2F2;
border: 1px solid #CCCCCC;
border-radius: 4px;
padding: 1px 3px 0;
text-shadow: none;
white-space: nowrap;
}
body>*:first-child {
margin-top: 0 !important;
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margin: 0pt;
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border: 1px solid #CCCCCC;
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display: table;
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color: #6D180B;
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font-size: 15px;
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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Spring Cloud Gateway</title><link rel="stylesheet" type="text/css" href="css/manual-singlepage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div lang="en" class="book"><div class="titlepage"><div><div><h1 class="title"><a name="d0e3"></a>Spring Cloud Gateway</h1></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="preface"><a href="#d0e9"></a></span></dt><dt><span class="chapter"><a href="#gateway-starter">1. How to Include Spring Cloud Gateway</a></span></dt><dt><span class="chapter"><a href="#_building_a_gateway_using_spring_mvc">2. Building a Gateway Using Spring MVC</a></span></dt></dl></div><div class="preface"><div class="titlepage"><div><div><h1 class="title"><a name="d0e9" href="#d0e9"></a></h1></div></div></div><p><span class="strong"><strong>1.0.0.RELEASE</strong></span></p><p>This project provides a library for building an API Gateway on top of Spring MVC. Spring Cloud Gateway aims to provide a simple, yet effective way to route to APIs and provide cross cutting concerns to them such as: security, monitoring/metrics, and resiliency.</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="gateway-starter" href="#gateway-starter"></a>1.&nbsp;How to Include Spring Cloud Gateway</h1></div></div></div><p>To include Spring Cloud Gateway in your project add a dependency with group <code class="literal">org.springframework.cloud</code> and artifact id <code class="literal">spring-cloud-gateway-mvc</code>. See the <a class="link" href="http://projects.spring.io/spring-cloud/" target="_top">Spring Cloud Project page</a> for details on setting up your build system with the current Spring Cloud Release Train.</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="_building_a_gateway_using_spring_mvc" href="#_building_a_gateway_using_spring_mvc"></a>2.&nbsp;Building a Gateway Using Spring MVC</h1></div></div></div><p>Spring Cloud Gateway provides a utility object called <code class="literal">ProxyExchange</code> which you can use inside a regular Spring MVC handler as a method parameter. It supports basic downstream HTTP exchanges via methods that mirror the HTTP verbs, or forwarding to a local handler via the <code class="literal">forward()</code> method.</p><p>Example (proxying a request to "/test" downstream to a remote server):</p><pre class="programlisting"><em><span class="hl-annotation" style="color: gray">@RestController</span></em>
<em><span class="hl-annotation" style="color: gray">@SpringBootApplication</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">public</span> <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">class</span> GatewaySampleApplication {
<em><span class="hl-annotation" style="color: gray">@Value("${remote.home}")</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">private</span> URI home;
<em><span class="hl-annotation" style="color: gray">@GetMapping("/test")</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">public</span> ResponseEntity&lt;?&gt; proxy(ProxyExchange&lt;Object&gt; proxy) <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">throws</span> Exception {
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">return</span> proxy.uri(home.toString() + <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/image/png"</span>).get();
}
}</pre><p>There are convenience methods on the <code class="literal">ProxyExchange</code> to enable the handler method to discover and enhance the URI path of the incoming request. For example you might want to extract the trailing elements of a path to pass them downstream:</p><pre class="programlisting"><em><span class="hl-annotation" style="color: gray">@GetMapping("/proxy/path/**")</span></em>
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">public</span> ResponseEntity&lt;?&gt; proxyPath(ProxyExchange&lt;?&gt; proxy) <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">throws</span> Exception {
String path = proxy.path(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/proxy/path/"</span>);
<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">return</span> proxy.uri(home.toString() + <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"/foos/"</span> + path).get();
}</pre><p>All the features of Spring MVC are available to Gateway handler methods. So you can inject request headers and query parameters, for instance, and you can constrain the incoming requests with declarations in the mapping annotation. See the documentation for <code class="literal">@RequestMapping</code> in Spring MVC for more details of those features.</p><p>Headers can be added to the downstream response using the <code class="literal">header()</code> methods on <code class="literal">ProxyExchange</code>.</p><p>You can also manipulate response headers (and anything else you like in the response) by adding a mapper to the <code class="literal">get()</code> etc. method. The mapper is a <code class="literal">Function</code> that takes the incoming <code class="literal">ResponseEntity</code> and converts it to an outgoing one.</p><p>First class support is provided for "sensitive" headers ("cookie" and "authorization" by default) which are not passed downstream, and for "proxy" headers (<code class="literal">x-forwarded-*</code>).</p></div></div></body></html>

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<?asciidoc-toc?>
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<book xmlns="http://docbook.org/ns/docbook" xmlns:xl="http://www.w3.org/1999/xlink" version="5.0" xml:lang="en">
<info>
<title>Spring Cloud Gateway</title>
<date>2017-11-22</date>
</info>
<preface>
<title></title>
<simpara><emphasis role="strong">1.0.0.RELEASE</emphasis></simpara>
<simpara>This project provides a library for building an API Gateway on top of Spring MVC. Spring Cloud Gateway aims to provide a simple, yet effective way to route to APIs and provide cross cutting concerns to them such as: security, monitoring/metrics, and resiliency.</simpara>
</preface>
<chapter xml:id="gateway-starter">
<title>How to Include Spring Cloud Gateway</title>
<simpara>To include Spring Cloud Gateway in your project add a dependency with group <literal>org.springframework.cloud</literal> and artifact id <literal>spring-cloud-gateway-mvc</literal>. See the <link xl:href="http://projects.spring.io/spring-cloud/">Spring Cloud Project page</link> for details on setting up your build system with the current Spring Cloud Release Train.</simpara>
</chapter>
<chapter xml:id="_building_a_gateway_using_spring_mvc">
<title>Building a Gateway Using Spring MVC</title>
<simpara>Spring Cloud Gateway provides a utility object called <literal>ProxyExchange</literal> which you can use inside a regular Spring MVC handler as a method parameter. It supports basic downstream HTTP exchanges via methods that mirror the HTTP verbs, or forwarding to a local handler via the <literal>forward()</literal> method.</simpara>
<simpara>Example (proxying a request to "/test" downstream to a remote server):</simpara>
<programlisting language="java" linenumbering="unnumbered">@RestController
@SpringBootApplication
public class GatewaySampleApplication {
@Value("${remote.home}")
private URI home;
@GetMapping("/test")
public ResponseEntity&lt;?&gt; proxy(ProxyExchange&lt;Object&gt; proxy) throws Exception {
return proxy.uri(home.toString() + "/image/png").get();
}
}</programlisting>
<simpara>There are convenience methods on the <literal>ProxyExchange</literal> to enable the handler method to discover and enhance the URI path of the incoming request. For example you might want to extract the trailing elements of a path to pass them downstream:</simpara>
<programlisting language="java" linenumbering="unnumbered">@GetMapping("/proxy/path/**")
public ResponseEntity&lt;?&gt; proxyPath(ProxyExchange&lt;?&gt; proxy) throws Exception {
String path = proxy.path("/proxy/path/");
return proxy.uri(home.toString() + "/foos/" + path).get();
}</programlisting>
<simpara>All the features of Spring MVC are available to Gateway handler methods. So you can inject request headers and query parameters, for instance, and you can constrain the incoming requests with declarations in the mapping annotation. See the documentation for <literal>@RequestMapping</literal> in Spring MVC for more details of those features.</simpara>
<simpara>Headers can be added to the downstream response using the <literal>header()</literal> methods on <literal>ProxyExchange</literal>.</simpara>
<simpara>You can also manipulate response headers (and anything else you like in the response) by adding a mapper to the <literal>get()</literal> etc. method. The mapper is a <literal>Function</literal> that takes the incoming <literal>ResponseEntity</literal> and converts it to an outgoing one.</simpara>
<simpara>First class support is provided for "sensitive" headers ("cookie" and "authorization" by default) which are not passed downstream, and for "proxy" headers (<literal>x-forwarded-*</literal>).</simpara>
</chapter>
</book>