Akka/Scala example source code file (SampleErrorHandlingConsumer.java)

This example Akka source code file (SampleErrorHandlingConsumer.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

akka, camel, camelmessage, concurrent, dispatch, duration, exception, finiteduration, mapper, option, override, processordefinition, sampleerrorhandlingconsumer, string, time, untypedconsumeractor

The SampleErrorHandlingConsumer.java Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */

package akka.camel;

import akka.actor.Status;
import akka.camel.javaapi.UntypedConsumerActor;
import akka.dispatch.Mapper;
import scala.concurrent.duration.Duration;
import org.apache.camel.builder.Builder;
import org.apache.camel.model.ProcessorDefinition;
import org.apache.camel.model.RouteDefinition;
import scala.Option;
import scala.concurrent.duration.FiniteDuration;

/**
 *
 */
public class SampleErrorHandlingConsumer extends UntypedConsumerActor {
    private static Mapper<RouteDefinition, ProcessorDefinition<?>> mapper = new Mapper<RouteDefinition, ProcessorDefinition<?>>() {
        public ProcessorDefinition<?> apply(RouteDefinition rd) {
            return rd.onException(Exception.class).handled(true).transform(Builder.exceptionMessage()).end();
        }
    };

    public String getEndpointUri() {
        return "direct:error-handler-test-java";
    }

    @Override
    public Mapper<RouteDefinition, ProcessorDefinition<?>> onRouteDefinition() {
      return mapper;
    }

    @Override
    public FiniteDuration replyTimeout(){
        return Duration.create(1, "second");
    }

    public void onReceive(Object message) throws Exception {
        CamelMessage msg = (CamelMessage) message;
        String body = msg.getBodyAs(String.class,this.getCamelContext());
        throw new Exception(String.format("error: %s", body));
    }

    @Override
    public void preRestart(Throwable reason, Option<Object> message){
        getSender().tell(new Status.Failure(reason), getSelf());
    }

}