ELCamel supports the unified JSP and JSF Expression Language via the JUEL For example you could use EL inside a Message Filter in XML <route> <from uri="seda:foo"/> <filter> <el>${in.headers.foo == 'bar'}</el> <to uri="seda:bar"/> </filter> </route> You could also use slightly different syntax, e.g. if the header name is not a valid identifier: <route> <from uri="seda:foo"/> <filter> <el>${in.headers['My Header'] == 'bar'}</el> <to uri="seda:bar"/> </filter> </route> You could use EL to create an Predicate in a Message Filter or as an Expression for a Recipient List DependenciesTo use EL in your camel routes you need to add the a dependency on camel-juel which implements the EL language. If you use maven you could just add the following to your pom.xml, substituting the version number for the latest & greatest release (see the download page for the latest versions). <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-juel</artifactId> <version>1.3.0</version> </dependency> |
