Apache Camel RouteBuilder does not launch configure()

Question

When I am trying to configure a new direct-Endpoint in Apache Camel, the configure()-Method of my RouteBuilder does not launch and I can not figure out the reason.

I have a Method configureRESTRoute(), which I have implemented in the following way:

private RouteBuilder configureRESTRoute(DataSource ds) {
    RouteBuilder restRoute = new RESTRoute() {
        @Override
        public void configure() throws Exception {
            from("direct:" + ds.getConfig().get("SOURCENAME"))
                    .log("----Configuring new REST Route----: " + "direct:" + ds.getConfig().get("SOURCENAME"))
                    .setHeader(Exchange.HTTP_PATH, simple((String) ds.getConfig().get("HTTP_PATH")))
                    .setHeader(Exchange.HTTP_METHOD, constant("GET"))
                    .to("http4:" + ds.getConfig().get("HTTP_HOST"))
                    .log("----Successfully configured----");
        }
    };
    return restRoute;
}

The DataSource class contains a Map of configuration details for a particular Datasource. In this method I am trying to build a Route which is later on added to the CamelContext. Currently it returns an empty Route, because the configure()-Method is skipped. Unfortunately there is no Exception thrown or any other kind of Error Message.

configure() method will be called once the RouteBuilder is added to Context. It is called as part of method Context#addRoutes. — Bedla

Tom Donohue Tom Donohue · Accepted Answer · 2018-05-21T13:16:10

To get Camel to pick up your route, get the CamelContext object, and invoke the addRoutes() method on it:

So define your new routes in a RouteBuilder:

public class RESTRoute extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        from("direct:...").to("...");
    }
}

then invoke addRoutes() and pass your RouteBuilder:

context.addRoutes(new RESTRoute());

If you're new to Camel, try starting with a Maven archetype, such as camel-archetype-java, as this boilerplate stuff is set up for you.

Apache Camel RouteBuilder does not launch configure()

1 Answers