| /** |
| * 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.component.sjms.tx; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.sjms.SjmsComponent; |
| import org.apache.camel.test.junit4.CamelTestSupport; |
| |
| public abstract class TransactedConsumerSupport extends CamelTestSupport { |
| |
| public abstract String getBrokerUri(); |
| |
| protected void runTest(String destinationName, int routeCount, int messageCount, int totalRedeliverdFalse, int totalRedeliveredTrue, int batchCount, int consumerCount, int maxAttemptsCount) |
| throws Exception { |
| // The CountDownLatch is used to make our final assertions await |
| // unit all the messages have been processed. It is also |
| // set to time out on the await. Our values are multiplied |
| // by the number of routes we have. |
| CountDownLatch latch = new CountDownLatch((totalRedeliverdFalse * routeCount) + (totalRedeliveredTrue * routeCount)); |
| |
| for (int i = 1; i <= routeCount; i++) { |
| // We add a route here so we can pass our latch into it. |
| addRoute(destinationName, i, batchCount, consumerCount, maxAttemptsCount, latch); |
| // Create mock endpoints for the before and after |
| getMockEndpoint("mock:test.before." + i).expectedMessageCount(totalRedeliverdFalse); |
| getMockEndpoint("mock:test.after." + i).expectedMessageCount(totalRedeliveredTrue); |
| } |
| |
| // We should never see a message here or something is |
| // wrong with the JMS provider. |
| getMockEndpoint("mock:test.after").expectedMessageCount(0); |
| |
| // Send only 10 messages |
| for (int i = 1; i <= messageCount; i++) { |
| String message = "Hello World " + i; |
| template.sendBody("direct:start", message); |
| log.trace("Sending message: {}", message); |
| } |
| |
| // Await on our countdown for 30 seconds at most then move on |
| latch.await(30, TimeUnit.SECONDS); |
| assertMockEndpointsSatisfied(30, TimeUnit.SECONDS); |
| } |
| |
| @Override |
| protected CamelContext createCamelContext() throws Exception { |
| CamelContext camelContext = super.createCamelContext(); |
| |
| ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(getBrokerUri()); |
| // use low redelivery delay to speed |
| connectionFactory.getRedeliveryPolicy().setInitialRedeliveryDelay(100); |
| connectionFactory.getRedeliveryPolicy().setRedeliveryDelay(100); |
| connectionFactory.getRedeliveryPolicy().setUseCollisionAvoidance(false); |
| connectionFactory.getRedeliveryPolicy().setUseExponentialBackOff(false); |
| |
| SjmsComponent component = new SjmsComponent(); |
| component.setConnectionFactory(connectionFactory); |
| camelContext.addComponent("sjms", component); |
| |
| return camelContext; |
| } |
| |
| protected void addRoute(final String destinationName, final int routeNumber, final int batchCount, final int consumerCount, |
| final int maxAttemptsCount, final CountDownLatch latch) throws Exception { |
| context.addRoutes(new RouteBuilder() { |
| @Override |
| public void configure() { |
| |
| if (context.getRoute("direct.route") == null) { |
| from("direct:start") |
| .id("direct.route") |
| .to(destinationName); |
| } |
| |
| // Our test consumer route |
| from(destinationName + "?transacted=true&transactionBatchCount=" + batchCount + "&consumerCount=" + consumerCount) |
| .id("consumer.route." + routeNumber) |
| // first consume all the messages that are not redelivered |
| .choice().when(header("JMSRedelivered").isEqualTo("false")) |
| // The rollback processor |
| .log("Route " + routeNumber + " 1st attempt Body: ${body} | Redeliverd: ${header.JMSRedelivered}") |
| .to("mock:test.before." + routeNumber) |
| .process(new Processor() { |
| private final AtomicInteger counter = new AtomicInteger(0); |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| if (counter.incrementAndGet() == maxAttemptsCount) { |
| log.info("{} Messages have been processed. Failing the exchange to force a rollback of the transaction.", maxAttemptsCount); |
| exchange.getOut().setFault(true); |
| } |
| |
| // Countdown the latch |
| latch.countDown(); |
| } |
| }) |
| // Now process again any messages that were redelivered |
| .when(header("JMSRedelivered").isEqualTo("true")) |
| .log("Route " + routeNumber + " 2nd attempt Body: ${body} | Redeliverd: ${header.JMSRedelivered}") |
| .to("mock:test.after." + routeNumber) |
| .process(new Processor() { |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| |
| // Countdown the latch |
| latch.countDown(); |
| } |
| }) |
| .otherwise() |
| .to("mock:test.after"); |
| } |
| }); |
| } |
| } |