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The content filter pattern describes a scenario where you need to filter out extraneous content from a message before delivering it to its intended recipient. For example, you might employ a content filter to strip out confidential information from a message.
A common way to filter messages is to use an expression in the DSL, written in one of the supported scripting languages (for example, XSLT, XQuery or JoSQL).
A content filter is essentially an application of a message processing technique for a particular purpose. To implement a content filter, you can employ any of the following message processing techniques:
Message translator—see message translators.
Processors—see Implementing a Processor in
The following example shows how to configure the same route in XML:
<camelContext xmlns="http://activemq.apache.org/camel/schema/spring">
<route>
<from uri="activemq:My.Queue"/>
<to uri="xslt:classpath:com/acme/content_filter.xsl"/>
<to uri="activemq:Another.Queue"/>
</route>
</camelContext>| |  | |
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