MyRouteBuilderDebug.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package foo;

import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.DefaultDebugger;
import org.apache.camel.model.ProcessorDefinition;
import org.apache.camel.processor.interceptor.Tracer;

/**
 * A Camel Router
 */
public class MyRouteBuilderDebug extends RouteBuilder {

    /**
     * Minimal debugger to allow setting breakpoints with Eclipse
     * 
     * Set breakpoints on the before or afterProcess to see each step
     */
    private static final class MyDebbugger extends DefaultDebugger {
        @Override
        public boolean beforeProcess(Exchange exchange,
        		Processor processor, ProcessorDefinition definition) {
        	return super.beforeProcess(exchange, processor, definition);
        }

        @Override
        public boolean afterProcess(Exchange exchange, Processor processor,
        		ProcessorDefinition definition, long timeTaken) {
        	return super.afterProcess(exchange, processor, definition, timeTaken);
        }
    }

    /**
     * A main() so we can easily run these routing rules in our IDE
     */
    public static void main(String... args) throws Exception {
    	DefaultCamelContext context = new DefaultCamelContext();
    	
    	// Activate general tacing (can also be done on the JMX MBean for the context)
    	context.setTracing(true);
    	
    	// Activate tracing using JMX Notifications (can also be done on the JMX MBean for the tracer)
    	Tracer tracer = (Tracer) context.getDefaultTracer();
        tracer.setJmxTraceNotifications(true);
    	
    	context.addRoutes(new MyRouteBuilderDebug());
        
    	// Activating the debugger disables tracing. So do not use both
    	context.setDebugger(new MyDebbugger());
    	context.start();
    	System.in.read();
    }

    /**
     * Lets configure the Camel routing rules using Java code...
     */
    public void configure() {
        from("file:src/data?noop=true").
            choice().
                when(xpath("/person/city = 'London'")).to("file:target/messages/uk").
                otherwise().to("file:target/messages/others");

    }
}