Java tutorial
/* * JORAM: Java(TM) Open Reliable Asynchronous Messaging * Copyright (C) 2011-2012 ScalAgent Distributed Technologies * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA. * * Initial developer(s): ScalAgent Distributed Technologies * Contributor(s): */ package joram.amqp; import com.rabbitmq.client.AMQP.Queue.DeclareOk; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; import com.rabbitmq.client.GetResponse; import com.rabbitmq.client.MessageProperties; import com.rabbitmq.client.QueueingConsumer; import com.rabbitmq.client.QueueingConsumer.Delivery; import framework.TestCase; public class PersistenceSimpleTest extends TestCase { public static void main(String[] args) { new PersistenceSimpleTest().run(); } public void run() { try { startAgentServer((short) 0); recover1(); //deleteDirectory(new File("s0")); //TODO //recover2(); } catch (Throwable exc) { exc.printStackTrace(); error(exc); } finally { System.out.println("finaly kill servers."); killAgentServer((short) 0); endTest(); } } public void recover1() throws Exception { ConnectionFactory cnxFactory = new ConnectionFactory(); Connection connection = cnxFactory.newConnection(); Channel channel = connection.createChannel(); DeclareOk declareOk = channel.queueDeclare("testqueue", true, false, false, null); channel.txSelect(); for (int i = 0; i < 5; i++) { channel.basicPublish("", declareOk.getQueue(), MessageProperties.PERSISTENT_BASIC, "this is a test message !!!".getBytes()); } channel.txCommit(); killAgentServer((short) 0); startAgentServer((short) 0); connection = cnxFactory.newConnection(); channel = connection.createChannel(); declareOk = channel.queueDeclarePassive("testqueue"); for (int i = 0; i < 5; i++) { GetResponse msg = channel.basicGet("testqueue", true); assertNotNull(msg); assertEquals("this is a test message !!!", new String(msg.getBody())); } GetResponse msg = channel.basicGet("testqueue", true); assertNull(msg); channel.queueDelete(declareOk.getQueue()); } public void recover2() throws Exception { ConnectionFactory cnxFactory = new ConnectionFactory(); Connection connection = cnxFactory.newConnection(); Channel channel = connection.createChannel(); DeclareOk declareOk = channel.queueDeclare("testqueue", true, false, false, null); channel.txSelect(); for (int i = 0; i < 5; i++) { channel.basicPublish("", declareOk.getQueue(), MessageProperties.PERSISTENT_BASIC, "this is a test message !!!".getBytes()); } channel.txCommit(); killAgentServer((short) 0); startAgentServer((short) 0); Thread.sleep(500); connection = cnxFactory.newConnection(); channel = connection.createChannel(); declareOk = channel.queueDeclarePassive("testqueue"); QueueingConsumer consumer = new QueueingConsumer(channel); channel.basicConsume(declareOk.getQueue(), true, consumer); for (int i = 0; i < 5; i++) { Delivery msg = consumer.nextDelivery(1000); assertNotNull(msg); assertEquals("this is a test message !!!", new String(msg.getBody())); } Delivery msg = consumer.nextDelivery(1000); assertNull(msg); channel.queueDelete(declareOk.getQueue()); } }