Setup Apache Camel Rest route using Java DSL on Wildfly Swarm

Question

I'm trying to setup a Camel Rest service in Wildfly Swarm and I'm not sure how the RouteBuilder class gets instantiated, or even how the CamelContext is instantiated. I've downloaded the Wildfly Swarm examples and had a look at the Camel CXF-JAXRS project, which makes sense, but it uses XML to define the route. I'd like to use Java DSL. My RouteBuilder class looks like this:

public class GreetingService extends RouteBuilder {
    @Override
    public void configure() {
        System.out.println("RouteBuilder.configure");
        restConfiguration().host("localhost").port("9797");
        rest("/say")
                .get("/hello").to("direct:hello")
                .get("/bye").consumes("application/json").to("direct:bye")
                .post("/bye").to("mock:update");

            from("direct:hello")
                .transform().constant("Hello World");
            from("direct:bye")
                .transform().constant("Bye World");
    } 
}

I have tried this with and without the camel-context.xml file. Swarm start up, but I can't browse to the rest service endpoint.

How does the RouteBuilder get called? Should I have some sort of main method that instantiates the CamelContext?

I am using Widlfy Swarm 2017.8.1 and the class is in a war file.

Answer 1

You can add this listener in your web.xml to bootstrap camel.
org.apache.camel.component.servletlistener.SimpleCamelServletContextListener Or you can use spring to define camel context