OGNL is an expression language for getting and setting properties of Java objects. You use the same expression for both getting and setting the value of a property. The OGNL support is in the camel-ognl module.

This component is supported by the Camel on EAP (Wildfly Camel) framework, which offers a simplified deployment model on the Red Hat JBoss Enterprise Application Platform (JBoss EAP) container.

To use OGNL in your routes you need to add a dependency on camel-ognl to your project as shown in Example 14, “Adding the camel-ognl dependency”.

<!-- Maven POM File -->
...
<dependencies>
  ...
  <dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-ognl</artifactId>
    <version>${camel-version}</version>
  </dependency>
  ...
</dependencies>

To use the ognl() static method in your application code, include the following import statement in your Java source files:

import static org.apache.camel.language.ognl.OgnlExpression.ognl;

Table 11, “OGNL variables” lists the built-in variables that are accessible when using OGNL.

Example 15, “Route using OGNL” shows a route that uses OGNL.

<camelContext>
  <route>
    <from uri="seda:foo"/>
    <filter>
      <language langauge="ognl">request.headers.foo == 'bar'</language>
      <to uri="seda:bar"/>
    </filter>
  </route>
</camelContext>