| /** |
| * 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.activemq.bugs; |
| |
| import javax.jms.BytesMessage; |
| import javax.jms.Connection; |
| import javax.jms.ConnectionFactory; |
| import javax.jms.JMSException; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| import javax.jms.Topic; |
| |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.broker.BrokerRegistry; |
| import org.apache.activemq.broker.BrokerService; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class AMQ5136Test { |
| |
| BrokerService brokerService; |
| @Before |
| public void startBroker() throws Exception { |
| brokerService = new BrokerService(); |
| brokerService.setPersistent(false); |
| brokerService.setUseJmx(false); |
| brokerService.start(); |
| } |
| |
| @After |
| public void stopBroker() throws Exception { |
| brokerService.stop(); |
| } |
| |
| @Test |
| public void memoryUsageOnCommit() throws Exception { |
| sendMessagesAndAssertMemoryUsage(new TransactionHandler() { |
| @Override |
| public void finishTransaction(Session session) throws JMSException { |
| session.commit(); |
| } |
| }); |
| } |
| |
| @Test |
| public void memoryUsageOnRollback() throws Exception { |
| sendMessagesAndAssertMemoryUsage(new TransactionHandler() { |
| @Override |
| public void finishTransaction(Session session) throws JMSException { |
| session.rollback(); |
| } |
| }); |
| } |
| |
| private void sendMessagesAndAssertMemoryUsage(TransactionHandler transactionHandler) throws Exception { |
| ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("vm://localhost"); |
| Connection connection = connectionFactory.createConnection(); |
| Session session = connection.createSession(true, Session.SESSION_TRANSACTED); |
| Topic destination = session.createTopic("ActiveMQBug"); |
| MessageProducer producer = session.createProducer(destination); |
| for (int i = 0; i < 100; i++) { |
| BytesMessage message = session.createBytesMessage(); |
| message.writeBytes(generateBytes()); |
| producer.send(message); |
| transactionHandler.finishTransaction(session); |
| } |
| connection.close(); |
| org.junit.Assert.assertEquals(0, BrokerRegistry.getInstance().findFirst().getSystemUsage().getMemoryUsage().getPercentUsage()); |
| } |
| |
| private byte[] generateBytes() { |
| byte[] bytes = new byte[100000]; |
| for (int i = 0; i < 100000; i++) { |
| bytes[i] = (byte) i; |
| } |
| return bytes; |
| } |
| |
| private static interface TransactionHandler { |
| void finishTransaction(Session session) throws JMSException; |
| } |
| } |