/**
* 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 org.apache.camel.impl;
import org.apache.camel.CamelContext;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.model.OptionalIdentifiedDefinition;
import org.apache.camel.model.ProcessorDefinition;
import org.apache.camel.processor.DelegateProcessor;
import org.apache.camel.spi.InterceptStrategy;
import org.apache.camel.spi.NodeIdFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Demonstrates how you can use a custom id factory to assign ids to Camel Java routes
* and then attach your own debugger and be able to use the custom ids to know at what
* point you are debugging
*
* @version $Revision: 799257 $
*/
public class CustomIdFactoryTest extends ContextTestSupport {
private static final Log LOG = LogFactory.getLog(CustomIdFactoryTest.class);
private static int counter;
private static String ids;
@Override
protected void setUp() throws Exception {
ids = "";
counter = 0;
super.setUp();
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
// use our own id factory so we can generate the keys we like to use
context.setNodeIdFactory(new NodeIdFactory() {
public String createId(OptionalIdentifiedDefinition definition) {
return "#" + definition.getShortName() + ++counter + "#";
}
});
// add our debugger so we can debug camel routes when we send in messages
context.addInterceptStrategy(new MyDebuggerCheckingId());
// a little content based router so we got 2 paths to route at runtime
from("direct:start")
.choice()
.when(body().contains("Hello"))
.to("mock:hello")
.otherwise()
.to("mock:other")
.end();
}
};
}
/**
* Test path 1
*/
public void testHello() throws Exception {
assertEquals("#route1#", context.getRouteDefinitions().get(0).getId());
getMockEndpoint("mock:hello").expectedMessageCount(1);
template.sendBody("direct:start", "Hello World");
assertMockEndpointsSatisfied();
// this should take the when path
assertEquals("#choice2##when3#", ids);
}
/**
* Test path 2
*/
public void testOther() throws Exception {
assertEquals("#route1#", context.getRouteDefinitions().get(0).getId());
getMockEndpoint("mock:other").expectedMessageCount(1);
template.sendBody("direct:start", "Bye World");
assertMockEndpointsSatisfied();
// this should take the otherwise path
assertEquals("#choice2##otherwise4#", ids);
}
private class MyDebuggerCheckingId implements InterceptStrategy {
public Processor wrapProcessorInInterceptors(final CamelContext context, final ProcessorDefinition definition,
Processor target, Processor nextTarget) throws Exception {
// MUST DO THIS
// force id creation as sub nodes have lazy assigned ids
definition.idOrCreate(context.getNodeIdFactory());
return new DelegateProcessor(target) {
@Override
protected void processNext(Exchange exchange) throws Exception {
LOG.debug("Debugging at: " + definition.toString() + " with id: " + definition.getId() + " with exchange: " + exchange);
// record the path taken at runtime
ids += definition.getId();
// continue to the real target by invoking super
super.processNext(exchange);
}
};
}
}
}