Author: buildbot
Date: Fri Oct 14 20:20:46 2016
New Revision: 999443
Log:
Production update by buildbot for camel
Modified:
websites/production/camel/content/book-in-one-page.html
websites/production/camel/content/book-languages-appendix.html
websites/production/camel/content/cache/main.pageCache
websites/production/camel/content/simple.html
Modified: websites/production/camel/content/book-in-one-page.html
==============================================================================
--- websites/production/camel/content/book-in-one-page.html (original)
+++ websites/production/camel/content/book-in-one-page.html Fri Oct 14 20:20:46
2016
@@ -4040,11 +4040,11 @@ The tutorial has been designed in two pa
While not actual tutorials you might find working through the source of the
various <a shape="rect" href="examples.html">Examples</a> useful.</li></ul>
<h2 id="BookInOnePage-TutorialonSpringRemotingwithJMS">Tutorial on Spring
Remoting with JMS</h2><p> </p><div class="confluence-information-macro
confluence-information-macro-information"><p class="title">Thanks</p><span
class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>This tutorial was kindly donated
to Apache Camel by Martin Gilday.</p></div></div><h2
id="BookInOnePage-Preface">Preface</h2><p>This tutorial aims to guide the
reader through the stages of creating a project which uses Camel to facilitate
the routing of messages from a JMS queue to a <a shape="rect"
class="external-link" href="http://www.springramework.org";
rel="nofollow">Spring</a> service. The route works in a synchronous fashion
returning a response to the client.</p><p><style type="text/css">/*<![CDATA[*/
-div.rbtoc1476051614657 {padding: 0px;}
-div.rbtoc1476051614657 ul {list-style: disc;margin-left: 0px;}
-div.rbtoc1476051614657 li {margin-left: 0px;padding-left: 0px;}
+div.rbtoc1476476305684 {padding: 0px;}
+div.rbtoc1476476305684 ul {list-style: disc;margin-left: 0px;}
+div.rbtoc1476476305684 li {margin-left: 0px;padding-left: 0px;}
-/*]]>*/</style></p><div class="toc-macro rbtoc1476051614657">
+/*]]>*/</style></p><div class="toc-macro rbtoc1476476305684">
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-TutorialonSpringRemotingwithJMS">Tutorial on Spring
Remoting with JMS</a></li><li><a shape="rect"
href="#BookInOnePage-Preface">Preface</a></li><li><a shape="rect"
href="#BookInOnePage-Prerequisites">Prerequisites</a></li><li><a shape="rect"
href="#BookInOnePage-Distribution">Distribution</a></li><li><a shape="rect"
href="#BookInOnePage-About">About</a></li><li><a shape="rect"
href="#BookInOnePage-CreatetheCamelProject">Create the Camel Project</a>
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-UpdatethePOMwithDependencies">Update the POM with
Dependencies</a></li></ul>
</li><li><a shape="rect" href="#BookInOnePage-WritingtheServer">Writing the
Server</a>
@@ -6159,11 +6159,11 @@ So we completed the last piece in the pi
<p>This example has been removed from <strong>Camel 2.9</strong> onwards.
Apache Axis 1.4 is a very old and unsupported framework. We encourage users to
use <a shape="rect" href="cxf.html">CXF</a> instead of Axis.</p></div></div>
<style type="text/css">/*<![CDATA[*/
-div.rbtoc1476051616212 {padding: 0px;}
-div.rbtoc1476051616212 ul {list-style: disc;margin-left: 0px;}
-div.rbtoc1476051616212 li {margin-left: 0px;padding-left: 0px;}
+div.rbtoc1476476307339 {padding: 0px;}
+div.rbtoc1476476307339 ul {list-style: disc;margin-left: 0px;}
+div.rbtoc1476476307339 li {margin-left: 0px;padding-left: 0px;}
-/*]]>*/</style><div class="toc-macro rbtoc1476051616212">
+/*]]>*/</style><div class="toc-macro rbtoc1476476307339">
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-TutorialusingAxis1.4withApacheCamel">Tutorial using Axis
1.4 with Apache Camel</a>
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-Prerequisites">Prerequisites</a></li><li><a shape="rect"
href="#BookInOnePage-Distribution">Distribution</a></li><li><a shape="rect"
href="#BookInOnePage-Introduction">Introduction</a></li><li><a shape="rect"
href="#BookInOnePage-SettinguptheprojecttorunAxis">Setting up the project to
run Axis</a>
<ul class="toc-indentation"><li><a shape="rect"
href="#BookInOnePage-Maven2">Maven 2</a></li><li><a shape="rect"
href="#BookInOnePage-wsdl">wsdl</a></li><li><a shape="rect"
href="#BookInOnePage-ConfiguringAxis">Configuring Axis</a></li><li><a
shape="rect" href="#BookInOnePage-RunningtheExample">Running the
Example</a></li></ul>
@@ -8504,33 +8504,34 @@ result = body * 2 + 1
</dependency>
]]></script>
</div></div>
-<h2 id="BookInOnePage-SimpleExpressionLanguage">Simple Expression
Language</h2><p>The Simple Expression Language was a really simple language
when it was created, but has since grown more powerful. It is primarily
intended for being a really small and simple language for evaluating <a
shape="rect" href="expression.html">Expression</a>s and <a shape="rect"
href="predicate.html">Predicate</a>s without requiring any new dependencies or
knowledge of <a shape="rect" href="xpath.html">XPath</a>; so it is ideal for
testing in camel-core. The idea was to cover 95% of the common use cases when
you need a little bit of expression based script in your Camel
routes.</p><p>However for much more complex use cases you are generally
recommended to choose a more expressive and powerful language such
as:</p><ul><li><a shape="rect" href="spel.html">SpEL</a></li><li><a
shape="rect" href="mvel.html">Mvel</a></li><li><a shape="rect"
href="groovy.html">Groovy</a></li><li><a shape="rect" href="javascript.h
tml">JavaScript</a></li><li><a shape="rect" href="el.html">EL</a></li><li><a
shape="rect" href="ognl.html">OGNL</a></li><li>one of the supported <a
shape="rect" href="scripting-languages.html">Scripting
Languages</a></li></ul><p>The simple language uses <code>${body</code>}
placeholders for complex expressions where the expression contains constant
literals. The ${ } placeholders can be omitted if the expression is only the
token itself.</p><div class="confluence-information-macro
confluence-information-macro-tip"><p class="title">Alternative syntax</p><span
class="aui-icon aui-icon-small aui-iconfont-approve
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>From Camel 2.5 onwards you can
also use the alternative syntax which uses $simple{ } as placeholders.<br
clear="none"> This can be used in situations to avoid clashes when using for
example Spring property placeholder together with Camel.</p></div></div><div
class="confluence-information
-macro confluence-information-macro-tip"><p class="title">Configuring result
type</p><span class="aui-icon aui-icon-small aui-iconfont-approve
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>From Camel 2.8 onwards you can
configure the result type of the <a shape="rect" href="simple.html">Simple</a>
expression. For example to set the type as a <code>java.lang.Boolean</code> or
a <code>java.lang.Integer</code> etc.</p></div></div><div
class="confluence-information-macro
confluence-information-macro-information"><p class="title">File language is now
merged with Simple language</p><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>From Camel 2.2 onwards, the <a
shape="rect" href="file-language.html">File Language</a> is now merged with <a
shape="rect" href="simple.html">Simple</a> language which means you can use all
the file syntax directly within
the simple language.</p></div></div><div class="confluence-information-macro
confluence-information-macro-information"><p class="title">Simple Language
Changes in Camel 2.9 onwards</p><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>The <a shape="rect"
href="simple.html">Simple</a> language have been improved from Camel 2.9
onwards to use a better syntax parser, which can do index precise error
messages, so you know exactly what is wrong and where the problem is. For
example if you have made a typo in one of the operators, then previously the
parser would not be able to detect this, and cause the evaluation to be true.
There are a few changes in the syntax which are no longer backwards compatible.
When using <a shape="rect" href="simple.html">Simple</a> language as a <a
shape="rect" href="predicate.html">Predicate</a> then the literal text
<strong>must</strong> be enclosed in either si
ngle or double quotes. For example: <code>"${body} == 'Camel'"</code>. Notice
how we have single quotes around the literal. The old style of using
<code>"body"</code> and <code>"header.foo"</code> to refer to the message body
and header is @deprecated, and it is encouraged to always use ${ } tokens for
the built-in functions.<br clear="none"> The range operator now requires the
range to be in single quote as well as shown: <code>"${header.zip} between
'30000..39999'"</code>.</p></div></div><p>To get the body of the in message:
<code>"body"</code>, or <code>"in.body"</code> or
<code>"${body}"</code>.</p><p>A complex expression must use ${ } placeholders,
such as: <code>"Hello ${in.header.name} how are you?"</code>.</p><p>You can
have multiple functions in the same expression: <code>"Hello ${in.header.name}
this is ${in.header.me} speaking"</code>.<br clear="none"> However you can
<strong>not</strong> nest functions in Camel 2.8.x or older (i.e. having
another ${ } placeholder in an e
xisting, is not allowed).<br clear="none"> From <strong>Camel 2.9</strong>
onwards you can nest functions.</p><h3
id="BookInOnePage-Variables.4">Variables</h3><div
class="confluenceTableSmall"><div class="table-wrap">
- <table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Variable</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>camelId</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.10:</strong> the <a shape="rect"
href="camelcontext.html">CamelContext</a> name</p></td></tr><tr><td colspan="1"
rowspan="1"
class="confluenceTd"><p>camelContext.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> the
CamelContext invoked using a Camel OGNL expression.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd">exchange</td><td colspan="1"
rowspan="1" class="confluenceTd">Exchange</td
><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.16:</strong>
>the <a shape="rect" href="exchange.html">Exchange</a></td></tr><tr><td
>colspan="1" rowspan="1"
>class="confluenceTd">exchange.<strong>OGNL</strong></td><td colspan="1"
>rowspan="1" class="confluenceTd">Object</td><td colspan="1" rowspan="1"
>class="confluenceTd"><strong>Camel 2.16:</strong><span> the </span><a
>shape="rect" href="exchange.html">Exchange</a><span> invoked using a Camel
>OGNL expression.</span></td></tr><tr><td colspan="1" rowspan="1"
>class="confluenceTd"><p>exchangeId</p></td><td colspan="1" rowspan="1"
>class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
>class="confluenceTd"><p><strong>Camel 2.3:</strong> the exchange
>id</p></td></tr><tr><td colspan="1" rowspan="1"
>class="confluenceTd"><p>id</p></td><td colspan="1" rowspan="1"
>class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
>class="confluenceTd"><p>the input message id</p></td></tr><tr><td colspan="1"
>rowspan="1
" class="confluenceTd"><p>body</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>the input body</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>in.body</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>the input body</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>body.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the input body
invoked using a Camel OGNL expression.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>in.body.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the input body
invoked using a Camel OGNL expr
ession.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>bodyAs(<em>type</em>)</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Type</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> Converts the body to the
given type determined by its classname. The converted body can be
null.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><span>bodyAs(</span><em>type</em><span>).<strong>OGNL</strong></span></td><td
colspan="1" rowspan="1" class="confluenceTd">Object</td><td colspan="1"
rowspan="1" class="confluenceTd"><strong>Camel 2.18:</strong><span> Converts
the body to the given type determined by its classname and then invoke methods
using a Camel OGNL expression. The converted body can be
null.</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>mandatoryBodyAs(<em>type</em>)</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Type</p></td><td colspan="1" rowspan="1"
class="co
nfluenceTd"><p><strong>Camel 2.5:</strong> Converts the body to the given type
determined by its classname, and expects the body to be not
null.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><span>mandatoryBodyAs(</span><em>type</em><span>).<strong>OGNL</strong></span></td><td
colspan="1" rowspan="1" class="confluenceTd">Object</td><td colspan="1"
rowspan="1" class="confluenceTd"><strong>Camel 2.18:</strong><span> Converts
the body to the given type determined by its classname and then invoke methods
using a Camel OGNL expression.</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>out.body</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>the output body</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>header.foo</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>refer to
the input foo header</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>header[foo]</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the input foo
header</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>headers.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>refer to the input foo header</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>headers[foo]</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the
input foo header</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in.header.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluen
ceTd"><p>refer to the input foo header</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>in.header[foo]</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the input foo
header</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in.headers.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>refer to the input foo header</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>in.headers[foo]</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the
input foo header</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>header.foo[bar]</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1
" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> regard input
foo header as a map and perform lookup on the map with bar as
key</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in.header.foo[bar]</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> regard input foo header as
a map and perform lookup on the map with bar as key</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>in.headers.foo[bar]</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> regard input
foo header as a map and perform lookup on the map with bar as
key</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>header.foo.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" cl
ass="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the input foo
header and invoke its value using a Camel OGNL expression.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p>in.header.foo.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the
input foo header and invoke its value using a Camel OGNL
expression.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in.headers.foo.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the
input foo header and invoke its value using a Camel OGNL
expression.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>out.header.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowsp
an="1" class="confluenceTd"><p>refer to the out header
foo</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>out.header[foo]</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the out header
foo</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>out.headers.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>refer to the out header foo</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>out.headers[foo]</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the
out header foo</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>headerAs(<em>key</em>,<em>type</em>)</p></td><td
colspan="1" rowspan="1" class="confluen
ceTd"><p>Type</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.5:</strong> Converts the header to the
given type determined by its classname</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>headers</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Map</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> refer to the input
headers</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in.headers</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Map</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> refer to the input
headers</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>property.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Deprecated:</strong> refer to the foo property
on the exchange</p></td></tr><tr><td colspan="1" r
owspan="1" class="confluenceTd">exchangeProperty.foo</td><td colspan="1"
rowspan="1" class="confluenceTd">Object</td><td colspan="1" rowspan="1"
class="confluenceTd"><span><strong>Camel 2.15:</strong> refer to the foo
property on the exchange</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>property[foo]</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Deprecated:</strong> refer to the foo property
on the exchange</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><span>exchangeProperty[foo]</span></td><td colspan="1"
rowspan="1" class="confluenceTd">Object</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.15:</strong><span> refer to the foo
property on the exchange</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>property.foo.<strong>OGNL</strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></
td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Deprecated:</strong> refer to the foo property
on the exchange and invoke its value using a Camel OGNL
expression.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><span>exchangeProperty.foo.</span><strong>OGNL</strong></td><td
colspan="1" rowspan="1" class="confluenceTd">Object</td><td colspan="1"
rowspan="1" class="confluenceTd"><strong>Camel 2.15:</strong><span> refer to
the foo property on the exchange and invoke its value using a Camel OGNL
expression.</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sys.foo</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>refer to the system property</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>sysenv.foo</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>String</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Came
l 2.3:</strong> refer to the system environment</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>exception</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> Refer to the
exception object on the exchange, is <strong>null</strong> if no exception set
on exchange. Will fallback and grab caught exceptions
(<code>Exchange.EXCEPTION_CAUGHT</code>) if the Exchange has
any.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>exception.<strong>OGNL</strong></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.4:</strong> Refer to the exchange
exception invoked using a Camel OGNL expression object</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>exception.message</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>String</p></td><td cols
pan="1" rowspan="1" class="confluenceTd"><p>Refer to the exception.message on
the exchange, is <strong>null</strong> if no exception set on exchange. Will
fallback and grab caught exceptions (<code>Exchange.EXCEPTION_CAUGHT</code>) if
the Exchange has any.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>exception.stacktrace</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.6.</strong> Refer to the
exception.stracktrace on the exchange, is <strong>null</strong> if no exception
set on exchange. Will fallback and grab caught exceptions
(<code>Exchange.EXCEPTION_CAUGHT</code>) if the Exchange has
any.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>date:<em>command:pattern</em></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Date formatting using the <code>java.text.SimpleDate
Format</code> patterns. Supported commands are: <strong>now</strong> for
current timestamp, <strong>in.header.xxx</strong> or
<strong>header.xxx</strong> to use the Date object in the IN header with the
key xxx. <strong>out.header.xxx</strong> to use the Date object in the OUT
header with the key xxx.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>bean:<em>bean expression</em></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Invoking a bean expression using the <a shape="rect"
href="bean.html">Bean</a> language. Specifying a method name you must use dot
as separator. We also support the ?method=methodname syntax that is used by the
<a shape="rect" href="bean.html">Bean</a> component.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p>properties:<em>locations:key</em></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>String</p></td><td colspan="1"
rowspan="1
" class="confluenceTd"><p><strong>Deprecated (use properties-location instead)
Camel 2.3:</strong> Lookup a property with the given key. The
<code>locations</code> option is optional. See more at <a shape="rect"
href="using-propertyplaceholder.html">Using
PropertyPlaceholder</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>properties-location:<em><a shape="rect"
class="external-link" href="http://locationskey";
rel="nofollow">locations:key</a></em></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.14.1:</strong> Lookup a property with
the given key. The <code>locations</code> option is optional. See more at <a
shape="rect" href="using-propertyplaceholder.html">Using
PropertyPlaceholder</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">properties:key:default</td><td colspan="1" rowspan="1"
class="confluenceTd">String</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.14.1</strong>: Lookup a property with
the given key. If the key does not exists or has no value, then an optional
default value can be specified.</td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>routeId</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> Returns the id of the
current route the <a shape="rect" href="exchange.html">Exchange</a> is being
routed.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>threadName</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>String</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> Returns the name of the
current thread. Can be used for logging purpose.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>ref:xxx</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Object</p></td><td colspan="1" r
owspan="1" class="confluenceTd"><p><strong>Camel 2.6:</strong> To lookup a
bean from the <a shape="rect" href="registry.html">Registry</a> with the given
id.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>type:name.field</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Object</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To refer to a type or
field by its FQN name. To refer to a field you can append .FIELD_NAME. For
example you can refer to the constant field from Exchange as:
<code>org.apache.camel.Exchange.FILE_NAME</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>null</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>null</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> represents a
<strong>null</strong></p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceT
d"><p>random<em>(value)</em></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Integer</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.16.0: </strong>returns a random Integer
between 0 (included) and <em>value</em> (excluded)</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p>random<em>(min,max)</em></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>Integer</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.16.0: </strong>returns a random Integer
between <em>min</em> (included) and <em>max</em>
(excluded)</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">collate(group)</td><td colspan="1" rowspan="1"
class="confluenceTd">List</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17:</strong> The collate function iterates
the message body and groups the data into sub lists of specified size. This can
be used with the <a shape="rect" href="splitter.html">Splitter</
a> EIP to split a message body and group/batch the splitted sub message into a
group of N sub lists. This method works similar to the collate method in
Groovy.</td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">messageHistory</td><td colspan="1" rowspan="1"
class="confluenceTd">String</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17:</strong> The message history of the
current exchange how it has been routed. This is similar to the route
stack-trace message history the error handler logs in case of an unhandled
exception.</td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><span>messageHistory(false)</span></td><td colspan="1"
rowspan="1" class="confluenceTd">String</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17:</strong><span> </span>As
messageHistory but without the exchange details (only includes the route
strack-trace). This can be used if you do not want to log sensitive data from
the message itself.</td>
</tr></tbody></table>
-</div></div><h3 id="BookInOnePage-OGNLexpressionsupport">OGNL expression
support</h3><p><strong>Available as of Camel 2.3</strong></p><div
class="confluence-information-macro
confluence-information-macro-information"><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>Camel's OGNL support is for
invoking methods only. You cannot access fields.<br clear="none"> From
<strong>Camel 2.11.1</strong> onwards we added special support for accessing
the length field of Java arrays.</p></div></div><p>The <a shape="rect"
href="simple.html">Simple</a> and <a shape="rect" href="bean.html">Bean</a>
language now supports a Camel OGNL notation for invoking beans in a chain like
fashion.<br clear="none"> Suppose the Message IN body contains a POJO which has
a <code>getAddress()</code> method.</p><p>Then you can use Camel OGNL notation
to access the address object:</p><div class="code panel pdl" style="bord
er-width: 1px;"><div class="codeContent panelContent pdl">
+<h2 id="BookInOnePage-SimpleExpressionLanguage">Simple Expression
Language</h2><p>The Simple Expression Language was a really simple language
when it was created, but has since grown more powerful. It is primarily
intended for being a really small and simple language for evaluating <a
shape="rect" href="expression.html">Expression</a>s and <a shape="rect"
href="predicate.html">Predicate</a>s without requiring any new dependencies or
knowledge of <a shape="rect" href="xpath.html">XPath</a>; so it is ideal for
testing in <strong><code>camel-core</code></strong>. The idea was to cover 95%
of the common use cases when you need a little bit of expression based script
in your Camel routes.</p><p>However for much more complex use cases you are
generally recommended to choose a more expressive and powerful language such
as:</p><ul><li><a shape="rect" href="spel.html">SpEL</a></li><li><a
shape="rect" href="mvel.html">Mvel</a></li><li><a shape="rect"
href="groovy.html">Groovy</a></li><li><a s
hape="rect" href="javascript.html">JavaScript</a></li><li><a shape="rect"
href="el.html">EL</a></li><li><a shape="rect"
href="ognl.html">OGNL</a></li><li>one of the supported <a shape="rect"
href="scripting-languages.html">Scripting Languages</a></li></ul><p>The simple
language uses <strong><code>${body</code>}</strong> placeholders for complex
expressions where the expression contains constant literals.
The <strong><code>${ }</code></strong> placeholders can be omitted if the
expression is only the token itself.</p><div
class="confluence-information-macro confluence-information-macro-tip"><p
class="title">Alternative syntax</p><span class="aui-icon aui-icon-small
aui-iconfont-approve confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>From Camel 2.5 you can also use
the alternative syntax which uses <strong><code>$simple{ }</code></strong>
as placeholders. This can be used in situations to avoid clashes when using for
example Spring
property placeholder together with Camel.</p></div></div><div
class="confluence-information-macro confluence-information-macro-tip"><p
class="title">Configuring result type</p><span class="aui-icon aui-icon-small
aui-iconfont-approve confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>From Camel 2.8 you can configure
the result type of the <a shape="rect" href="simple.html">Simple</a>
expression. For example to set the type as a
<strong><code>java.lang.Boolean</code></strong> or a
<code>j<strong>ava.lang.Integer</strong></code> etc.</p></div></div><div
class="confluence-information-macro
confluence-information-macro-information"><p class="title">File language is now
merged with Simple language</p><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>From Camel 2.2, the <a
shape="rect" href="file-language.html">File Language</a> is now merged with <a s
hape="rect" href="simple.html">Simple</a> language which means you can use all
the file syntax directly within the simple language.</p></div></div><div
class="confluence-information-macro
confluence-information-macro-information"><p class="title">Simple Language
Changes in Camel 2.9 onwards</p><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>The <a shape="rect"
href="simple.html">Simple</a> language have been improved from Camel 2.9 to use
a better syntax parser, which can do index precise error messages, so you know
exactly what is wrong and where the problem is. For example if you have made a
typo in one of the operators, then previously the parser would not be able to
detect this, and cause the evaluation to be true. There are a few changes in
the syntax which are no longer backwards compatible. When using <a shape="rect"
href="simple.html">Simple</a> language as a <a shape="rect" hr
ef="predicate.html">Predicate</a> then the literal text <strong>must</strong>
be enclosed in either single or double quotes. For example:
<code>"<strong>${body} == 'Camel'</strong>"</code>. Notice how we have single
quotes around the literal. The old style of using
<code>"<strong>body</strong>"</code> and
<code>"<strong>header.foo</strong>"</code> to refer to the message body and
header is <strong><code>@deprecated</code></strong>, and it is encouraged to
always use <strong><code>${ }</code></strong> tokens for the built-in
functions.<br clear="none"> The range operator now requires the range to be in
single quote as well as shown: <code>"<strong>${header.zip} between
'30000..39999'</strong>"</code>.</p></div></div><p>To get the body of the in
message: <strong><code>body</code></strong>, or
<strong><code>in.body</code></strong> or
<strong><code>${body}</code></strong>.</p><p>A complex expression must
use <strong><code>${ }</code></strong> placeholders, such as: <strong><co
de>Hello ${in.header.name} how are you?</code></strong>.</p><p>You can have
multiple functions in the same expression: <code>"<strong>Hello
${in.header.name} this is ${in.header.me} speaking</strong>"</code>. However
you can <em><strong>not</strong></em> nest functions in Camel 2.8.x or older
e.g., having another <strong><code>${ }</code></strong> placeholder in an
existing, is not allowed. From <strong>Camel 2.9</strong> you can nest
functions.</p><h3 id="BookInOnePage-Variables.4">Variables</h3><div
class="confluenceTableSmall"><div class="table-wrap">
+ <table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Variable</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>camelId</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10:</strong>
the <a shape="rect" href="camelcontext.html">CamelContext</a>
name.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>camelContext.<strong>OGNL</strong></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong>
the <strong><code>CamelContext</code></strong> invoked using a Camel OGNL
expression.</p></td></tr><tr><td colspan="1" rowspan="1" class="
confluenceTd"><p><code>exchange</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>Exchange</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.16:</strong> the <a
shape="rect" href="exchange.html">Exchange.</a></p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>exchange.<strong>OGNL</strong></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel
2.16:</strong><span> the </span><a shape="rect"
href="exchange.html">Exchange</a><span> invoked using a Camel OGNL
expression.</span></p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>exchangeId</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the exchange
Id.</p></td></tr><tr><td colspan="1" rowspan="1" class="c
onfluenceTd"><p><code>id</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 input message Id.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>body</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>The input body.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.body</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>The input body.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>body.<strong>OGNL</strong></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the
input body invoked using a Camel
OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.body.<strong>OGNL</strong></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong> the
input body invoked using a Camel OGNL expression.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>bodyAs(<em>type</em>)</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Type</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong>
Converts the body to the given type determined by its classname. The converted
body can be <strong><code>null</code></strong>.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>bodyAs(<em>type</em>).<strong>OGNL</strong></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="
confluenceTd"><p><strong>Camel 2.18:</strong><span> Converts the body to the
given type determined by its classname and then invoke methods using a Camel
OGNL expression. The converted body can be
<strong><code>null</code></strong>.</span></p></td></tr><tr><td colspan="1"
rowspan="1"
class="confluenceTd"><p><code>mandatoryBodyAs(<em>type</em>)</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Type</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.5:</strong>
Converts the body to the given type determined by its classname, and expects
the body to be not <strong><code>null</code></strong>.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>mandatoryBodyAs(<em>type</em>).<strong>OGNL</strong></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.18:</strong><span> Converts the body to
the given type
determined by its classname and then invoke methods using a Camel OGNL
expression.</span></p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>out.body</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>The output body.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>header.<em>foo</em></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the
input <strong><code>foo</code></strong> header.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>header[<em>foo</em>]</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong>
refer to the input <strong><code>foo</code></strong> header.</p></td></tr
><tr><td colspan="1" rowspan="1"
>class="confluenceTd"><p><code>headers.<em>foo</em></code></p></td><td
>colspan="1" rowspan="1"
>class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p>Refer to the
>input <strong><code>foo</code></strong> header.</p></td></tr><tr><td
>colspan="1" rowspan="1"
>class="confluenceTd"><p><code>headers[<em>foo</em>]</code></p></td><td
>colspan="1" rowspan="1"
>class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to
>the input <strong><code>foo</code></strong> header.</p></td></tr><tr><td
>colspan="1" rowspan="1"
>class="confluenceTd"><p><code>in.header.<code><em>foo</em></code></code></p></td><td
> colspan="1" rowspan="1"
>class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p>Refer to the
>input <strong><code>foo</code></strong> header.</p></td></tr><tr><td
>colspan="1" row
span="1"
class="confluenceTd"><p><code>in.header[<code><em>foo</em></code>]</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the
input <strong><code>foo</code></strong> header.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.headers.<code><em>foo</em></code></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Refer to the
input <strong><code>foo</code></strong> header.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.headers[<code><em>foo</em></code>]</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the
input <strong><code>foo</code></strong> heade
r.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>header.foo[<em>bar</em>]</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.3:</strong>
regard input <strong><code>foo</code></strong> header as a map and perform
lookup on the map with <strong><code>bar</code></strong> as
key.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.header.foo[<code><em>bar</em></code>]</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> regard
input <strong><code>foo</code></strong> header as a map and perform lookup
on the map with <strong><code>bar</code></strong> as
key.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.headers.foo[<code><em>bar</em></code>]</code></p><
/td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> regard
input <strong><code>foo</code></strong> header as a map and perform lookup
on the map with <strong><code>bar</code></strong> as
key.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>header.<code><em>foo</em></code>.OGNL</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the
input <strong><code>foo</code></strong> header and invoke its value using
a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.header.<code><em>foo</em></code>.OGNL</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2
.3:</strong> refer to the input <strong><code>foo</code></strong> header
and invoke its value using a Camel OGNL expression.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.headers.<code><em>foo</em></code>.OGNL</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the
input <strong><code>foo</code></strong> header and invoke its value using
a Camel OGNL expression.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>out.header.<code><em>foo</em></code></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Refer to the out header
<strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>out.header[<code><em>foo</em></code>]</code></p></td><td
colspan=
"1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong>
refer to the out header <strong><code>foo</code></strong>.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>out.headers.<code><em>foo</em></code></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Refer to the out header
<strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>out.headers[<code><em>foo</em></code>]</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.2:</strong> refer to the out header
<strong><code>foo</code></strong>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>headerAs(<em>key</em>,<em>type</em>)</code><
/p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>Type</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.5:</strong> Converts the header to the
given type determined by its classname.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>headers</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Map</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong>
refer to the input headers.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>in.headers</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Map</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> refer to the
input headers.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>property.<code><em>foo</em></code></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code
></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong><span
>style="color: rgb(255,0,0);">Deprecated</span>:</strong> refer to
>the <strong><code>foo</code></strong> property on the
>exchange.</p></td></tr><tr><td colspan="1" rowspan="1"
>class="confluenceTd"><p><code>exchangeProperty.<code><em>foo</em></code></code></p></td><td
> colspan="1" rowspan="1"
>class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p><span><strong>Camel 2.15:</strong> refer
>to the <strong><code>foo</code></strong> property on the
>exchange.</span></p></td></tr><tr><td colspan="1" rowspan="1"
>class="confluenceTd"><p><code>property[<code><em>foo</em></code>]</code></p></td><td
> colspan="1" rowspan="1"
>class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p><strong>Deprecated:</strong> refer to
>the <strong><code>foo</code></strong> property on the
>exchange.</p></td></tr><tr><td colspan="1" row
span="1"
class="confluenceTd"><p><span><code>exchangeProperty[<code><em>foo</em></code>]</code></span></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.15:</strong><span> refer to
the <strong><code>foo</code></strong> property on the
exchange.</span></p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>property.<code><em>foo</em></code>.OGNL</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Deprecated:</strong> refer to
the <strong><code>foo</code></strong> property on the exchange and invoke
its value using a Camel OGNL expression.</p></td></tr><tr><td colspan="1"
rowspan="1"
class="confluenceTd"><p><code>exchangeProperty.<code><em>foo</em></code>.OGNL</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p><
/td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel
2.15:</strong><span> refer to the <strong><code>foo</code></strong>
property on the exchange and invoke its value using a Camel OGNL
expression.</span></p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>sys.<code><em>foo</em></code></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Refer to the system property
<span><strong><code>foo</code></strong></span>.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>sysenv.<code><em>foo</em></code></code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> refer to the system
environment property
<span><strong><code>foo</code></strong></span>.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>
<code>exception</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.4:</strong> Refer to the exception
object on the exchange, is <strong><code>null</code></strong> if no exception
set on exchange. Will fallback and grab caught exceptions
(<strong><code>Exchange.EXCEPTION_CAUGHT</code></strong>) if the Exchange has
any.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>exception.OGNL</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> Refer to the
exchange exception invoked using a Camel OGNL expression
object</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>exception.message</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1"
rowspan="1" class=
"confluenceTd"><p>Refer to the exception.message on the exchange, is
<strong>null</strong> if no exception set on exchange. Will fallback and grab
caught exceptions (<strong><code>Exchange.EXCEPTION_CAUGHT</code></strong>) if
the Exchange has any.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>exception.stacktrace</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.6.</strong>
Refer to the <strong><code>exception.stracktrace</code></strong> on the
exchange. Result is <strong><code>null</code></strong> if no exception set
on exchange. Will fallback and grab caught exceptions
(<strong><code>Exchange.EXCEPTION_CAUGHT</code></strong>) if the Exchange has
any.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>date:<em>command</em>:<em>pattern</em></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><co
de>String</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Date formatting using the
<strong><code>java.text.SimpleDateFormat</code></strong> patterns. Supported
commands are: </p>
+ <ul><li><p><strong><code>now</code></strong> for current
timestamp.</p></li><li><p><strong><code>in.header.xxx</code></strong>
or <strong><code>header.xxx</code></strong> to use
the <strong><code>Date</code></strong> object in
the <strong><code>IN</code></strong> header with the key
<strong><code>xxx</code></strong>.</p></li><li><p><strong><code>out.header.xxx</code></strong>
to use the <strong><code>Date</code></strong> object in
the <strong><code>OUT</code></strong> header with the key
<strong><code>xxx</code></strong>.</p></li></ul></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>bean:<em>bean
expression</em></code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>Object</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Invoking a bean expression using the <a shape="rect"
href="bean.html">Bean</a> language. Specifying a method name you must use dot
as separator. We also support the <strong
><code>?method=methodname</code></strong> syntax that is used by the <a
>shape="rect" href="bean.html">Bean</a> component.</p></td></tr><tr><td
>colspan="1" rowspan="1"
>class="confluenceTd"><p><code>properties:<em>locations</em>:key</code></p></td><td
> colspan="1" rowspan="1"
>class="confluenceTd"><p><code>String</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p><strong><span style="color:
>rgb(255,0,0);">Deprecated</span> (use properties-location instead) Camel
>2.3:</strong> Lookup a property with the given key. The
><strong><code>locations</code></strong> option is optional. See more at <a
>shape="rect" href="using-propertyplaceholder.html">Using
>PropertyPlaceholder</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
>class="confluenceTd"><p><code>properties-location:<em>locations:key</em></code></p></td><td
> colspan="1" rowspan="1"
>class="confluenceTd"><p><code>String</code></p></td><td colspan="1"
>rowspan="1" class="confluenceTd"><p><strong>Camel 2.14.1:</strong> Lookup a
property with the given key. The <code>locations</code> option is optional.
See more at <a shape="rect" href="using-propertyplaceholder.html">Using
PropertyPlaceholder</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>properties:key:default</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.14.1</strong>:
Lookup a property with the given key. If the key does not exists or has no
value, then an optional default value can be specified.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>routeId</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> Returns the Id
of the current route the <a shape="rect" href="exchange.html">Exchange</a> is
being routed.</p></td></tr><tr><td colspan="1" rowspan="1" class=
"confluenceTd"><p><code>threadName</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.3:</strong> Returns the name of the
current thread. Can be used for logging purpose.</p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>ref:<em>xxx</em></code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.6:</strong> To lookup a
bean from the <a shape="rect" href="registry.html">Registry</a> with the given
Id.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>type:name.field</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>Object</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> To refer to a
type or field by its FQN name. To refer to a field you can append <stro
ng><code>.FIELD_NAME</code></strong>. For example you can refer to the
constant field from Exchange as:
<strong><code>org.apache.camel.Exchange.FILE_NAME</code></strong></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.3:</strong>
represents a <strong><code>null</code>.</strong></p></td></tr><tr><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>random(<em>value</em>)</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Integer</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.16.0: </strong>returns a
random Integer between <em><strong><code>0</code></strong></em> (included)
and <strong><em>value</em></strong> (excluded)</p></td></tr><tr><td colspan="1"
rowspan="1" c
lass="confluenceTd"><p><code>random(<em>min</em>,<em>max</em>)</code></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>Integer</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.16.0: </strong>returns a
random Integer between <strong><em>min</em></strong> (included) and
<strong><em>max</em></strong> (excluded)</p></td></tr><tr><td colspan="1"
rowspan="1"
class="confluenceTd"><p><code>collate(<em>group</em>)</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>List</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.17:</strong>
The collate function iterates the message body and groups the data into sub
lists of specified size. This can be used with the <a shape="rect"
href="splitter.html">Splitter</a> EIP to split a message body and group/batch
the split sub messages into a group of <strong><code>N</code></strong> sub
lists. This method works similar to the collate method in Groo
vy.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>messageHistory</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.17:</strong> The message
history of the current exchange how it has been routed. This is similar to the
route stack-trace message history the error handler logs in case of an
un-handled exception.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><span><code>messageHistory(false)</code></span></p></td><td
colspan="1" rowspan="1"
class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel
2.17:</strong><span> </span>As <strong><code>messageHistory</code></strong>
but without the exchange details (only includes the route strack-trace). This
can be used if you do not want to log sensitive data from the message
itself.</p></td></tr></tbody></table>
+</div></div><h3 id="BookInOnePage-OGNLexpressionsupport">OGNL expression
support</h3><p><strong>Available as of Camel 2.3</strong></p><div
class="confluence-information-macro
confluence-information-macro-information"><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>Camel's OGNL support is for
invoking methods only. You cannot access fields.<br clear="none"> From
<strong>Camel 2.11.1</strong> onwards we added special support for accessing
the length field of Java arrays.</p></div></div><p>The <a shape="rect"
href="simple.html">Simple</a> and <a shape="rect" href="bean.html">Bean</a>
language now supports a Camel OGNL notation for invoking beans in a chain like
fashion. Suppose the Message <strong><code>IN</code></strong> body
contains a POJO which has a <strong><code>getAddress()</code></strong>
method.</p><p>Then you can use Camel OGNL notation to access the address
object:</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[simple("${body.address}")
simple("${body.address.street}")
simple("${body.address.zip}")
]]></script>
-</div></div><p>Camel understands the shorthand names for getters, but you can
invoke any method or use the real name such as:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>Camel understands the shorthand names for accessors, but you
can invoke any method or use the real name such as:</p><div class="code panel
pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[simple("${body.address}")
simple("${body.getAddress.getStreet}")
simple("${body.address.getZip}")
simple("${body.doSomething}")
]]></script>
-</div></div><p>You can also use the null safe operator (<code>?.</code>) to
avoid NPE if for example the body does NOT have an address</p><div class="code
panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>You can also use the null safe operator
(<strong><code>?.</code></strong>) to avoid NPE if for example the body does
<em>not</em> have an address</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[simple("${body?.address?.street}")
]]></script>
-</div></div><p>It is also possible to index in <code>Map</code> or
<code>List</code> types, so you can do:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>It is also possible to index in
<strong><code>Map</code></strong> or <strong><code>List</code></strong> types,
so you can do:</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[simple("${body[foo].name}")
]]></script>
-</div></div><p>To assume the body is <code>Map</code> based and lookup the
value with <code>foo</code> as key, and invoke the <code>getName</code> method
on that value.</p><div class="confluence-information-macro
confluence-information-macro-information"><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>If the key has space, then you
<strong>must</strong> enclose the key with quotes, for example 'foo
bar':</p><div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
+</div></div><p>To assume the body is <strong><code>Map</code></strong> based
and lookup the value with <strong><code>foo</code></strong> as key, and invoke
the <strong><code>getName</code></strong> method on that value.</p><div
class="confluence-information-macro
confluence-information-macro-information"><span class="aui-icon aui-icon-small
aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>If the key has space, then you
<em><strong>must</strong></em> enclose the key with quotes, for
example:</p><div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[simple("${body['foo
bar'].name}")
]]></script>
-</div></div></div></div><p>You can access the <code>Map</code> or
<code>List</code> objects directly using their key name (with or without dots)
:</p><div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
+</div></div></div></div><p>You can access the
<strong><code>Map</code></strong> or <strong><code>List</code></strong> objects
directly using their key name (with or without dots) :</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[simple("${body[foo]}")
simple("${body[this.is.foo]}")
]]></script>
-</div></div><p>Suppose there was no value with the key <code>foo</code> then
you can use the null safe operator to avoid the NPE as shown:</p><div
class="code panel pdl" style="border-width: 1px;"><div class="codeContent
panelContent pdl">
+</div></div><p>Suppose there was no value with the key
<strong><code>foo</code></strong> then you can use the null safe operator to
avoid the NPE as shown:</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[simple("${body[foo]?.name}")
]]></script>
</div></div><p>You can also access <code>List</code> types, for example to get
lines from the address you can do:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
@@ -8538,10 +8539,10 @@ simple("${body[this.is.foo]}")
simple("${body.address.lines[1]}")
simple("${body.address.lines[2]}")
]]></script>
-</div></div><p>There is a special <code>last</code> keyword which can be used
to get the last value from a list.</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>There is a special <strong><code>last</code></strong> keyword
which can be used to get the last value from a list.</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[simple("${body.address.lines[last]}")
]]></script>
-</div></div><p>And to get the 2nd last you can subtract a number, so we can
use <code>last-1</code> to indicate this:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>And to get the 2nd last you can subtract a number, so we can
use <strong><code>last-1</code></strong> to indicate this:</p><div class="code
panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[simple("${body.address.lines[last-1]}")
]]></script>
</div></div><p>And the 3rd last is of course:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
@@ -8550,7 +8551,7 @@ simple("${body.address.lines[2]}&qu
</div></div><p>And you can call the size method on the list with</p><div
class="code panel pdl" style="border-width: 1px;"><div class="codeContent
panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[simple("${body.address.lines.size}")
]]></script>
-</div></div><p>From <strong>Camel 2.11.1</strong> onwards we added support for
the length field for Java arrays as well, eg:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>From <strong>Camel 2.11.1</strong> we added support for the
length field for Java arrays as well, eg:</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[] lines = new
String[]{"foo", "bar", "cat"};
exchange.getIn().setBody(lines);
@@ -8559,13 +8560,13 @@ simple("There are ${body.length} li
</div></div><p>And yes you can combine this with the operator support as shown
below:</p><div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[simple("${body.address.zip} >
1000")
]]></script>
-</div></div><h3 id="BookInOnePage-Operatorsupport">Operator support</h3><p>The
parser is limited to only support a single operator.</p><p>To enable it the
left value must be enclosed in ${ }. The syntax is:</p><div class="code panel
pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><h3 id="BookInOnePage-OperatorSupport">Operator Support</h3><p>The
parser is limited to only support a single operator. To enable it the left
value must be enclosed in <strong><code>${ }</code></strong>.</p><p>The syntax
is:</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[${leftValue} OP rightValue
]]></script>
-</div></div><p>Where the <code>rightValue</code> can be a String literal
enclosed in <code>' '</code>, <code>null</code>, a constant value or another
expression enclosed in ${ }.</p><div class="confluence-information-macro
confluence-information-macro-information"><p class="title">Important</p><span
class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>There <strong>must</strong> be
spaces around the operator.</p></div></div><p>Camel will automatically type
convert the rightValue type to the leftValue type, so it is able to eg. convert
a string into a numeric so you can use > comparison for numeric
values.</p><p>The following operators are supported:</p><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1"
rowspan="1" class="confluenceTh"><p>Operator</p></th><th colspan="1"
rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td
colspan="1" rowspan="1" c
lass="confluenceTd"><p>==</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>equals</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">=~</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.16:</strong> equals ignore case (will
ignore case when comparing String values)</td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>greater than</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>>=</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>greater than or equals</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>less than</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><=</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>less than or equals</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>!=</p></td><td co
lspan="1" rowspan="1" class="confluenceTd"><p>not equals</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>contains</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>For testing if contains in a
string based value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not contains</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For testing if not contains in a string based
value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>regex</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching against a given regular expression pattern
defined as a String value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not regex</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For not matching against a given regular expression
pattern defined as a String value</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>in</p></td><td colspan="1" rowspan="1" class="con
fluenceTd"><p>For matching if in a set of values, each element must be
separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not in</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if not in a set of values, each element
must be separated by comma.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>is</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if the left hand side type is an
instanceof the value.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>not is</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if the left hand side type is not an
instanceof the value.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>range</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>For matching if the left hand side is within a range of
values defined as numbers: <code>from..to</code>. From <strong>Camel
2.9</strong> onwards
the range values must be enclosed in single quotes.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>not range</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>For matching if the left hand
side is not within a range of values defined as numbers: <code>from..to</code>.
From <strong>Camel 2.9</strong> onwards the range values must be enclosed in
single quotes.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">starts with</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17.1, 2.18</strong><span>: For testing if
the left hand side string starts with the right hand
string.</span></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">ends with</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.17.1, 2.18</strong>: For testing if the
left hand side string ends with the right hand
string.</td></tr></tbody></table></div><p>And the following unary operators can
be used:</p><div class="table-wrap"><ta
ble class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>++</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> To increment a number by
one. The left hand side must be a function, otherwise parsed as
literal.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>--</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> To decrement a number by
one. The left hand side must be a function, otherwise parsed as
literal.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>\</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9.3 to 2.10.x</strong> To escape a
value, eg \$, to indicate a $ sign. Special: Use \n for new line, \t for tab,
and \r for carriage return. <strong>Notice:</stro
ng> Escaping is <strong>not</strong> supported using the <a shape="rect"
href="file-language.html">File Language</a>. <strong>Notice:</strong> From
Camel 2.11 onwards the escape character is no longer support, but replaced with
the following three special escaping.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>\n</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To use newline
character.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>\t</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To use tab
character.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>\r</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11:</strong> To use carriage return
character.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd">\}</td><td colspan="1" rowspan="1"
class="confluenceTd"><strong>Camel 2.18:</strong> To use the } ch
aracter as text</td></tr></tbody></table></div><p>And the following logical
operators can be used to group expressions:</p><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Operator</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>and</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>deprecated</strong> use && instead. The
logical and operator is used to group two expressions.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>or</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>deprecated</strong> use || instead.
The logical or operator is used to group two expressions.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>&&</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> The
logical and operator is u
sed to group two expressions.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>||</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.9:</strong> The logical or operator is
used to group two expressions.</p></td></tr></tbody></table></div><div
class="confluence-information-macro
confluence-information-macro-information"><p class="title">Using and,or
operators</p><span class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>In <strong>Camel 2.4 or
older</strong> the <code>and</code> or <code>or</code> can only be used
<strong>once</strong> in a simple language expression. From <strong>Camel
2.5</strong> onwards you can use these operators multiple
times.</p></div></div><p>The syntax for AND is:</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
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