Modified: websites/production/camel/content/language.html
==============================================================================
--- websites/production/camel/content/language.html (original)
+++ websites/production/camel/content/language.html Sat Jul 11 09:20:25 2015
@@ -87,30 +87,30 @@
<tr>
<td valign="top" width="100%">
<div class="wiki-content maincontent"><h2
id="Language-Language">Language</h2><p><strong>Available as of Camel
2.5</strong></p><p>The language component allows you to send <a shape="rect"
href="exchange.html">Exchange</a> to an endpoint which executes a script by any
of the supported <a shape="rect" href="languages.html">Languages</a> in
Camel.<br clear="none"> By having a component to execute language scripts, it
allows more dynamic routing capabilities. For example by using the <a
shape="rect" href="routing-slip.html">Routing Slip</a> or <a shape="rect"
href="dynamic-router.html">Dynamic Router</a> EIPs you can send messages to
<code>language</code> endpoints where the script is dynamic defined as
well.</p><p>This component is provided out of the box in
<code>camel-core</code> and hence no additional JARs is needed. You only have
to include additional Camel components if the language of choice mandates it,
such as using <a shape="rect" href="groovy.html">Groovy</a> or <a shape="re
ct" href="javascript.html">JavaScript</a> languages.</p><h3
id="Language-URIformat">URI format</h3><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
-<pre class="brush: java; gutter: false; theme: Default"
style="font-size:12px;">language://languageName[:script][?options]
-</pre>
+<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[language://languageName[:script][?options]
+]]></script>
</div></div><p>And from Camel 2.11 onwards you can refer to an external
resource for the script using same notation as supported by the other <a
shape="rect" href="language.html">Language</a>s in Camel</p><div class="code
panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
-<pre class="brush: java; gutter: false; theme: Default"
style="font-size:12px;">language://languageName:resource:scheme:location][?options]
-</pre>
+<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[language://languageName:resource:scheme:location][?options]
+]]></script>
</div></div><h3 id="Language-URIOptions">URI Options</h3><p>The component
supports the following options.</p><div class="confluenceTableSmall"><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1"
rowspan="1" class="confluenceTh"><p>Name</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Default Value</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Type</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>languageName</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>The name of the <a shape="rect"
href="languages.html">Language</a> to use, such as <code>simple</code>,
<code>groovy</code>, <code>javascript</code> etc. This option is
mandatory.</p></td></tr><tr><td colspa
n="1" rowspan="1" class="confluenceTd"><p><code>script</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>The script to
execute.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>transform</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>boolean</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Whether or not the result of
the script should be used as the new message body. By setting to
<code>false</code> the script is executed but the result of the script is
discarded.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>contentCache</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1"
rowspan
="1" class="confluenceTd"><p><code>boolean</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> Whether to
cache the script if loaded from a resource.<br clear="none"> Note: from
<strong>Camel 2.10.3</strong> a cached script can be forced to reload at
runtime via JMX using the clearContentCache operation.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>cacheScript</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>boolean</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel
2.13/2.12.2/2.11.3:</strong> Whether to cache the compiled script. Turning this
option on can gain performance as the script is only compiled/created once, and
reuse when processing Camel messages. But this may cause side-effects with data
left from previous evaluation spills into the next, and concurrency issues as we
ll. If the script being evaluated is idempotent then this option can be turned
on.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>binary</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>boolean</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.14.1:</strong> Whether the
script is binary content. This is intended to be used for loading resources
using the Constant language, such as loading binary
files.</p></td></tr></tbody></table></div></div><h3
id="Language-MessageHeaders">Message Headers</h3><p>The following message
headers can be used to affect the behavior of the component</p><div
class="confluenceTableSmall"><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Header</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><
tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>CamelLanguageScript</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>The script to execute provided
in the header. Takes precedence over script configured on the
endpoint.</p></td></tr></tbody></table></div></div><h3
id="Language-Examples">Examples</h3><p>For example you can use the <a
shape="rect" href="simple.html">Simple</a> language to <a shape="rect"
href="message-translator.html">Message Translator</a> a message:</p><div
class="code panel pdl" style="border-width: 1px;"><div class="codeContent
panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
String script = URLEncoder.encode("Hello ${body}",
"UTF-8");
from("direct:start").to("language:simple:" +
script).to("mock:result");
]]></script>
-</div></div><p>In case you want to convert the message body type you can do
this as well:</p><div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
+</div></div>In case you want to convert the message body type you can do this
as well:<div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
String script = URLEncoder.encode("${mandatoryBodyAs(String)}",
"UTF-8");
from("direct:start").to("language:simple:" +
script).to("mock:result");
]]></script>
-</div></div><p>You can also use the <a shape="rect"
href="groovy.html">Groovy</a> language, such as this example where the input
message will by multiplied with 2:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div>You can also use the <a shape="rect" href="groovy.html">Groovy</a>
language, such as this example where the input message will by multiplied with
2:<div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
String script = URLEncoder.encode("request.body * 2",
"UTF-8");
from("direct:start").to("language:groovy:" +
script).to("mock:result");
]]></script>
-</div></div><p>You can also provide the script as a header as shown below.
Here we use <a shape="rect" href="xpath.html">XPath</a> language to extract the
text from the <code><foo></code> tag.</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
-<pre class="brush: java; gutter: false; theme: Default"
style="font-size:12px;">Object out =
producer.requestBodyAndHeader("language:xpath", "<foo>Hello
World</foo>", Exchange.LANGUAGE_SCRIPT, "/foo/text()");
-assertEquals("Hello World", out);
-</pre>
+</div></div>You can also provide the script as a header as shown below. Here
we use <a shape="rect" href="xpath.html">XPath</a> language to extract the text
from the <code><foo></code> tag.<div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[Object out =
producer.requestBodyAndHeader("language:xpath",
"<foo>Hello World</foo>", Exchange.LANGUAGE_SCRIPT,
"/foo/text()");
+assertEquals("Hello World", out);
+]]></script>
</div></div><h3 id="Language-Loadingscriptsfromresources">Loading scripts from
resources</h3><p><strong>Available as of Camel 2.9</strong></p><p>You can
specify a resource uri for a script to load in either the endpoint uri, or in
the <code>Exchange.LANGUAGE_SCRIPT</code> header.<br clear="none"> The uri must
start with one of the following schemes: file:, classpath:, or http:</p><p>For
example to load a script from the classpath:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
from("direct:start")
@@ -118,28 +118,28 @@ from("direct:start")
.to("language:simple:classpath:org/apache/camel/component/language/mysimplescript.txt")
.to("mock:result");
]]></script>
-</div></div><p>By default the script is loaded once and cached. However you
can disable the <code>contentCache</code> option and have the script loaded on
each evaluation.<br clear="none"> For example if the file myscript.txt is
changed on disk, then the updated script is used:</p><div class="code panel
pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div>By default the script is loaded once and cached. However you can
disable the <code>contentCache</code> option and have the script loaded on each
evaluation.<br clear="none"> For example if the file myscript.txt is changed on
disk, then the updated script is used:<div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
from("direct:start")
// the script will be loaded on each message, as we disabled cache
.to("language:simple:file:target/script/myscript.txt?contentCache=false")
.to("mock:result");
]]></script>
-</div></div><p>From <strong>Camel 2.11</strong> onwards you can refer to the
resource similar to the other <a shape="rect"
href="language.html">Language</a>s in Camel by prefixing with
<code>"resource:"</code> as shown below:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div>From <strong>Camel 2.11</strong> onwards you can refer to the
resource similar to the other <a shape="rect"
href="language.html">Language</a>s in Camel by prefixing with
<code>"resource:"</code> as shown below:<div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[
from("direct:start")
// load the script from the classpath
.to("language:simple:resource:classpath:org/apache/camel/component/language/mysimplescript.txt")
.to("mock:result");
]]></script>
-</div></div><p></p><h3 id="Language-SeeAlso">See Also</h3>
-<ul><li><a shape="rect" href="configuring-camel.html">Configuring
Camel</a></li><li><a shape="rect"
href="component.html">Component</a></li><li><a shape="rect"
href="endpoint.html">Endpoint</a></li><li><a shape="rect"
href="getting-started.html">Getting Started</a></li></ul><ul
class="alternate"><li><a shape="rect"
href="languages.html">Languages</a></li><li><a shape="rect"
href="routing-slip.html">Routing Slip</a></li><li><a shape="rect"
href="dynamic-router.html">Dynamic Router</a></li></ul></div>
+</div></div><h3 id="Language-SeeAlso">See Also</h3>
+<ul><li><a shape="rect" href="configuring-camel.html">Configuring
Camel</a></li><li><a shape="rect"
href="component.html">Component</a></li><li><a shape="rect"
href="endpoint.html">Endpoint</a></li><li><a shape="rect"
href="getting-started.html">Getting Started</a></li></ul><ul
class="alternate"><li><a shape="rect"
href="languages.html">Languages</a></li><li><a shape="rect"
href="routing-slip.html">Routing Slip</a></li><li><a shape="rect"
href="dynamic-router.html">Dynamic Router</a></li><li><a shape="rect"
href="script.html">Script</a></li></ul></div>
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<input type="hidden" name="ie" value="UTF-8">
@@ -147,7 +147,7 @@ from("direct:start")
<input type="submit" name="sa" value="Search">
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Added: websites/production/camel/content/script.html
==============================================================================
--- websites/production/camel/content/script.html (added)
+++ websites/production/camel/content/script.html Sat Jul 11 09:20:25 2015
@@ -0,0 +1,184 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<html>
+<head>
+ <link href="//camel.apache.org/styles/site.css" rel="stylesheet"
type="text/css">
+ <link href="//camel.apache.org/styles/type-settings.css" rel="stylesheet"
type="text/css">
+ <script src="//camel.apache.org/styles/prototype.js"
type="text/javascript"></script>
+ <script src="//camel.apache.org/styles/rico.js"
type="text/javascript"></script>
+ <script src="//camel.apache.org/styles/site.js"
type="text/javascript"></script>
+
+ <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
+
+ <style type="text/css">
+ .maincontent { overflow:hidden; }
+ </style>
+ <!--[if IE]>
+ <style type="text/css">
+ .maincontent { width:100%; }
+ </style>
+ <![endif]-->
+
+
+ <link href='//camel.apache.org/styles/highlighter/styles/shCoreCamel.css'
rel='stylesheet' type='text/css' />
+ <link href='//camel.apache.org/styles/highlighter/styles/shThemeCamel.css'
rel='stylesheet' type='text/css' />
+ <script src='//camel.apache.org/styles/highlighter/scripts/shCore.js'
type='text/javascript'></script>
+ <script src='//camel.apache.org/styles/highlighter/scripts/shBrushJava.js'
type='text/javascript'></script>
+ <script src='//camel.apache.org/styles/highlighter/scripts/shBrushXml.js'
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+
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+<div class="wiki-content maincontent"><h2
id="Script-Script">Script</h2><p><strong>Available as of Camel
2.16</strong></p><p> </p><p>Is used to execute a script which does not
change the message (by default). This is useful when you need to invoke some
logic that are not in Java code such as JavaScript, Groovy or any of the
other <a shape="rect" href="languages.html">Languages</a>. The message
body is not changed (by default) however the scripting context has access to
the current Exchange and can essentially change the message or headers
directly. But the return value from the script is discarded and not used. If
the return value should be used as a changed message body then use <a
shape="rect" href="message-translator.html">Message Translator</a> EIP
instead.</p><h3 id="Script-UsingfromJavaDSL">Using from Java DSL</h3><p>The
route below will read the file contents and validate them against a regular
expression.</p><div class="code panel pdl" style="border-width: 1px
;"><div class="codeContent panelContent pdl">
+<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[from("file://inbox")
+ .script().groovy("// some groovy code goes here")
+ .to("bean:MyServiceBean.processLine");]]></script>
+</div></div><h3 id="Script-UsingfromSpringDSL">Using from Spring
DSL</h3><p>And from XML its easy as well</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+<script class="brush: xml; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[<route>
+ <from uri="file://inbox"/>
+ <script>
+ <groovy>// some groovy code goes here</groovy>
+ </script>
+ <beanRef ref="myServiceBean" method="processLine"/>
+</route>
+
+<bean id="myServiceBean"
class="com.mycompany.MyServiceBean"/>
+]]></script>
+</div></div><p>Mind that you can use CDATA in XML if the groovy scrip uses
< > etc</p><p> </p><div class="code panel pdl" style="border-width:
1px;"><div class="codeContent panelContent pdl">
+<script class="brush: xml; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[<route>
+ <from uri="file://inbox"/>
+ <script>
+ <groovy><![CDATA[ some groovy script here that can be multiple
lines and whatnot ]]></groovy>
+ </script>
+ <beanRef ref="myServiceBean" method="processLine"/>
+</route>
+
+<bean id="myServiceBean"
class="com.mycompany.MyServiceBean"/>]]></script>
+</div></div><p></p><h4 id="Script-UsingThisPattern">Using This Pattern</h4>
+
+<p>If you would like to use this EIP Pattern then please read the <a
shape="rect" href="getting-started.html">Getting Started</a>, you may also find
the <a shape="rect" href="architecture.html">Architecture</a> useful
particularly the description of <a shape="rect"
href="endpoint.html">Endpoint</a> and <a shape="rect"
href="uris.html">URIs</a>. Then you could try out some of the <a shape="rect"
href="examples.html">Examples</a> first before trying this pattern
out.</p></div>
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