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Available as of Camel 2.7

The context component allows you to create new Camel Components from a CamelContext with a number of routes which is then treated as a black box, allowing you to refer to the local endpoints within the component from other CamelContexts.

It is similar to the Routebox component in idea, though the Context component tries to be really simple for end users; just a simple convention over configuration approach to refer to local endpoints inside the CamelContext Component.

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-context</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>

context:camelContextId:localEndpointName[?options]

Or you can omit the "context:" prefix.

camelContextId:localEndpointName[?options]

  • camelContextId is the ID you used to register the CamelContext into the Registry.

  • localEndpointName can be a valid Camel URI evaluated within the black box CamelContext. Or it can be a logical name which is mapped to any local endpoints. For example if you locally have endpoints like direct:invoices and seda:purchaseOrders inside a CamelContext of id supplyChain, then you can just use the URIs supplyChain:invoices or supplyChain:purchaseOrders to omit the physical endpoint kind and use pure logical URIs.

You can append query options to the URI in the following format, ?option=value&option=value&...

First you need to create a CamelContext, add some routes in it, start it and then register the CamelContext into the Registry (JNDI, Spring, Guice or OSGi etc).

This can be done in the usual Camel way from this test case (see the createRegistry() method); this example shows Java and JNDI being used...

// lets create our black box as a camel context and a set of routes
DefaultCamelContext blackBox = new DefaultCamelContext(registry);
blackBox.setName("blackBox");
blackBox.addRoutes(new RouteBuilder() {
    @Override
    public void configure() throws Exception {
        // receive purchase orders, lets process it in some way then send an invoice
        // to our invoice endpoint
        from("direct:purchaseOrder").
          setHeader("received").constant("true").
          to("direct:invoice");
    }
});
blackBox.start();

registry.bind("accounts", blackBox);

Notice in the above route we are using pure local endpoints (direct and seda). Also note we expose this CamelContext using the accounts ID. We can do the same thing in XML via

<camelContext id="accounts" xmlns="http://camel.apache.org/schema/spring">
  <route> 
    <from uri="direct:purchaseOrder"/>
    ...
    <to uri="direct:invoice"/>
  </route>
</camelContext>

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