How do I add a component

You might first want to read Writing Components for a background in how to implement a new component.
Typically it means you write an implementation of the Component interface, usually deriving from DefaultComponent.

You can then register your component explicitly via

CamelContext context = new DefaultCamelContext();
context.addComponent("foo", new FooComponent(context));

However you can use the auto-discovery feature of Camel where by Camel will automatically add a Component when an endpoint URI is used. To do this you would create a file called


with contents


(you can add other property configurations in there too if you like)

Then if you refer to an endpoint as foo://somethingOrOther Camel will auto-discover your component and register it.

The FooComponent can then be auto-injected with resources using the Injector, such as to support Spring based auto-wiring, or to support @Resource (EJB3 style) injection or Guice style @Inject injection.

Working with Spring XML

You can configure a component via Spring using the following mechanism...

<camelContext id="camel" xmlns="">
    <jmxAgent id="agent" disabled="true"/>

<bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent">
  <property name="connectionFactory">
    <bean class="org.apache.activemq.ActiveMQConnectionFactory">
      <property name="brokerURL" value="vm://localhost?broker.persistent=false&amp;broker.useJmx=false"/>

Which allows you to configure a component using some name (activemq in the above example), then you can refer to the component using activemq:[queue:|topic:]destinationName.

If you want to add explicit Spring 2.x XML objects to your XML then you could use the xbean-spring which tries to automate most of the XML binding work for you; or you could look in camel-spring at CamelNamespaceHandler you'll see how we handle the Spring XML stuff (warning its kinda hairy code to look at . If you wanted <fooComponent> to be a standard part of the core Camel schema then you'd hack that file to add your component & conftribute a patch to the camel XSD. Otherwise you could write your own namespace & schema if you prefer.

See Also

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