| /** |
| * 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.processor; |
| |
| import java.util.List; |
| |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.RouteNode; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.impl.JndiRegistry; |
| import org.apache.camel.management.InstrumentationProcessor; |
| import org.apache.camel.spi.TracedRouteNodes; |
| |
| /** |
| * @version |
| */ |
| public class TraceableUnitOfWorkTest extends ContextTestSupport { |
| |
| public void testSendingSomeMessages() throws Exception { |
| Object out = template.requestBody("direct:start", "Hello London"); |
| assertEquals("Failed at: sendTo(Endpoint[bean://bar])", out); |
| } |
| |
| @Override |
| protected JndiRegistry createRegistry() throws Exception { |
| JndiRegistry jndi = super.createRegistry(); |
| jndi.bind("foo", new MyFooBean()); |
| jndi.bind("bar", new MyBarBean()); |
| return jndi; |
| } |
| |
| // START SNIPPET: e1 |
| protected RouteBuilder createRouteBuilder() throws Exception { |
| return new RouteBuilder() { |
| public void configure() throws Exception { |
| errorHandler(deadLetterChannel("mock:error").redeliveryDelay(0).maximumRedeliveries(3)); |
| |
| // must enable tracer to trace the route path taken during runtime |
| context.setTracing(true); |
| |
| // let our my error processor handle all exceptions |
| onException(Exception.class).handled(true).process(new MyErrorProcessor()); |
| |
| // our route where an exception can be thrown from either foo or bar bean |
| // so we have enable tracing so we can check it at runtime to get the actual |
| // node path taken |
| from("direct:start").to("bean:foo").to("bean:bar"); |
| } |
| }; |
| } |
| // END SNIPPET: e1 |
| |
| // START SNIPPET: e2 |
| private class MyErrorProcessor implements Processor { |
| public void process(Exchange exchange) throws Exception { |
| TracedRouteNodes traced = exchange.getUnitOfWork().getTracedRouteNodes(); |
| |
| // get the list of intercepted nodes |
| List<RouteNode> list = traced.getNodes(); |
| // get the 3rd last as its the bean |
| Processor last = list.get(list.size() - 3).getProcessor(); |
| |
| // wrapped by JMX |
| if (last instanceof InstrumentationProcessor) { |
| InstrumentationProcessor ip = (InstrumentationProcessor) last; |
| last = ip.getProcessor(); |
| } |
| |
| // set error message |
| exchange.getOut().setFault(true); |
| exchange.getOut().setBody("Failed at: " + last.toString()); |
| } |
| |
| public String toString() { |
| return "MyErrorProcessor"; |
| } |
| } |
| // END SNIPPET: e2 |
| |
| public class MyFooBean { |
| public void process(Exchange exchange) throws Exception { |
| exchange.getOut().setBody("Foo okay"); |
| } |
| } |
| |
| public class MyBarBean { |
| public void process(Exchange exchange) throws Exception { |
| throw new IllegalArgumentException("Damm Bar"); |
| } |
| } |
| } |