CODEWITHSUNDEEP
routesapache-camel
R M
R M

Reputation: 165

Camel breakup route

I have a RouteBuilder class that has grown quite large with many Direct Routes: from("direct:...").

Each Route is performing a specific type of enrichment of the body.

The RouteBuilder works fine but it would be nice to break it up into a few separate classes where each class is specific to the type of enrichment being performed.

The classes would be a part of the same workflow, just defined in separate classes.

Is this possible? If so, can anyone point me to examples?

Upvotes: 1

Views: 283

Answers (2)

aseriesofdarkcaves
aseriesofdarkcaves

Reputation: 134

I wanted to know the answer to this too, but I haven't been able to find any examples either - so I tried doing this as a proof-of-concept (using Camel 3):

RouteBuilderA.java

public class RouteBuilderA extends RouteBuilder {
    @Override
    public void configure() {
        from("timer:myTimer?fixedRate=true&period=1000")
            .setBody().constant("ROUTE A")
            .log("${body}")
            .to(RouteBuilderB.INPUT);
    }
}

RouteBuilderB.java

public class RouteBuilderB extends RouteBuilder {
    public static final String INPUT = "direct:input";

    @Override
    public void configure() {
        from(INPUT)
                .setBody().constant("ROUTE B")
                .log("${body}");
    }
}

MainRouteBuilder.java

public class MainRouteBuilder extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        getContext().addRoutes(new RouteBuilderA());
        getContext().addRoutes(new RouteBuilderB());
    }
}

I've not looked into the drawbacks of using this setup, i.e. what it means for error handling, Message Exchange Patterns etc. but this seems to work for a start.

Upvotes: 0

burki
burki

Reputation: 7025

As Screwtape already commented, you can have as many RouteBuilder classes as you want to build 1 CamelContext. Because you use Direct Routes, they need to be in the same CamelContext what is normally true if they are in the same deployment unit.

If you use Spring-Boot and the Camel-Starter the RouteBuilders are even auto-discovered if you declare them as @Component.

A simple example with multiple Direct Routes in different RouteBuilders

Upvotes: 2

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