| /* |
| * 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.itest.tx; |
| |
| import javax.annotation.Resource; |
| |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.EndpointInject; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.spring.SpringRouteBuilder; |
| import org.apache.camel.spring.spi.SpringTransactionPolicy; |
| import org.apache.camel.test.AvailablePortFinder; |
| |
| /** |
| * Route that listen on a JMS queue and send a request/reply over http |
| * before returning a response. Is transacted. |
| * <p/> |
| * Notice we use the SpringRouteBuilder that supports transacted |
| * error handler. |
| */ |
| public class JmsToHttpRoute extends SpringRouteBuilder { |
| protected static int counter; |
| protected int port; |
| |
| @Resource(name = "PROPAGATION_REQUIRED") |
| protected SpringTransactionPolicy required; |
| |
| @EndpointInject("ref:data") |
| protected Endpoint data; |
| |
| protected String nok = "<?xml version=\"1.0\"?><reply><status>nok</status></reply>"; |
| protected String ok = "<?xml version=\"1.0\"?><reply><status>ok</status></reply>"; |
| |
| @Override |
| public void configure() { |
| port = AvailablePortFinder.getNextAvailable(); |
| |
| // configure a global transacted error handler |
| errorHandler(transactionErrorHandler(required)); |
| |
| from(data) |
| // use transaction policy for this route |
| .policy(required) |
| // send a request to http and get the response |
| .to("http://localhost:" + port + "/sender") |
| // convert the response to String so we can work with it and avoid streams only be readable once |
| // as the http component will return data as a stream |
| .convertBodyTo(String.class) |
| // do a choice if the response is okay or not |
| .choice() |
| // do a xpath to compare if the status is NOT okay |
| .when().xpath("/reply/status != 'ok'") |
| // as this is based on an unit test we use mocks to verify how many times we did rollback |
| .to("mock:rollback") |
| // response is not okay so force a rollback by throwing an exception |
| .process(new Processor() { |
| public void process(Exchange exchange) { |
| throw new IllegalArgumentException("Rollback please"); |
| } |
| }) |
| .otherwise() |
| // otherwise since its okay, the route ends and the response is sent back |
| // to the original caller |
| .end(); |
| |
| // this is our http route that will fail the first 2 attempts |
| // before it sends an ok response |
| from("jetty:http://localhost:" + port + "/sender").process(new Processor() { |
| public void process(Exchange exchange) { |
| if (counter++ < 2) { |
| exchange.getMessage().setBody(nok); |
| } else { |
| exchange.getMessage().setBody(ok); |
| } |
| } |
| }); |
| } |
| |
| } |