/**
* 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.console;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.io.ByteArrayOutputStream;
import java.util.Arrays;
import java.util.LinkedList;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.apache.activemq.console.command.PurgeCommand;
import org.apache.activemq.console.formatter.CommandShellOutputFormatter;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestName;
/**
* Tests for the purge command.
*/
public class PurgeCommandTest {
private BrokerService brokerService;
private ConnectionFactory factory;
@Rule public TestName name = new TestName();
@Before
public void createBroker() throws Exception {
brokerService = new BrokerService();
brokerService.getManagementContext().setCreateConnector(false);
brokerService.setPersistent(false);
TransportConnector connector = brokerService.addConnector("tcp://0.0.0.0:0");
brokerService.start();
brokerService.waitUntilStarted();
factory = new ActiveMQConnectionFactory(connector.getPublishableConnectString());
}
@After
public void stopBroker() throws Exception {
if (brokerService != null) {
brokerService.stop();
}
}
@Test(timeout = 30000)
public void testPurge() throws Exception {
produce(10);
QueueViewMBean queueView = getProxyToQueue(getDestinationName());
assertEquals(10, queueView.getQueueSize());
executePurge(getDestinationName());
assertEquals(0, queueView.getQueueSize());
}
@Test(timeout = 30000)
public void testPurgeWithReset() throws Exception {
produce(20);
consume(10);
QueueViewMBean queueView = getProxyToQueue(getDestinationName());
assertEquals(10, queueView.getQueueSize());
assertEquals(20, queueView.getEnqueueCount());
assertEquals(10, queueView.getDequeueCount());
// Normal purge doesn't change stats.
executePurge(getDestinationName());
assertEquals(0, queueView.getQueueSize());
assertEquals(20, queueView.getEnqueueCount());
assertEquals(20, queueView.getDequeueCount());
// Purge on empty leaves stats alone.
executePurge(getDestinationName());
assertEquals(0, queueView.getQueueSize());
assertEquals(20, queueView.getEnqueueCount());
assertEquals(20, queueView.getDequeueCount());
executePurge("--reset " + getDestinationName());
// Purge on empty with reset clears stats.
assertEquals(0, queueView.getQueueSize());
assertEquals(0, queueView.getEnqueueCount());
assertEquals(0, queueView.getDequeueCount());
produce(20);
consume(10);
assertEquals(10, queueView.getQueueSize());
assertEquals(20, queueView.getEnqueueCount());
assertEquals(10, queueView.getDequeueCount());
executePurge("--reset " + getDestinationName());
// Purge on non-empty with reset clears stats.
assertEquals(0, queueView.getQueueSize());
assertEquals(0, queueView.getEnqueueCount());
assertEquals(0, queueView.getDequeueCount());
}
private String getDestinationName() {
return name.getMethodName();
}
private String executePurge(String options) throws Exception {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(1024);
CommandContext context = new CommandContext();
context.setFormatter(new CommandShellOutputFormatter(byteArrayOutputStream));
PurgeCommand purgeCommand = new PurgeCommand();
purgeCommand.setJmxUseLocal(true);
purgeCommand.setCommandContext(context);
LinkedList<String> args = new LinkedList<>();
args.addAll(Arrays.asList(options.split(" ")));
purgeCommand.execute(args);
return byteArrayOutputStream.toString();
}
private QueueViewMBean getProxyToQueue(String name) throws MalformedObjectNameException, JMSException {
ObjectName queueViewMBeanName = new ObjectName("org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName="+name);
QueueViewMBean proxy = (QueueViewMBean) brokerService.getManagementContext()
.newProxyInstance(queueViewMBeanName, QueueViewMBean.class, true);
return proxy;
}
private void produce(int count) throws Exception {
Connection connection = factory.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageProducer producer = session.createProducer(queue);
for (int i = 0; i < count; ++i) {
producer.send(session.createMessage());
}
connection.close();
}
private void consume(int count) throws Exception {
Connection connection = factory.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageConsumer consumer = session.createConsumer(queue);
connection.start();
for (int i = 0; i < count; ++i) {
assertNotNull(consumer.receive(1000));
}
connection.close();
}
}