content: /*
   * 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;
  
  import javax.jms.ConnectionFactory;
  import javax.jms.JMSException;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Session;
  import javax.jms.TextMessage;
  import javax.jms.Topic;
  import java.io.IOException;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicBoolean;
  import java.util.concurrent.atomic.AtomicLong;
  
  import org.apache.activemq.broker.BrokerService;
  import org.apache.activemq.broker.TransportConnector;
  import org.apache.activemq.broker.region.policy.PolicyEntry;
  import org.apache.activemq.broker.region.policy.PolicyMap;
  import org.apache.activemq.command.ActiveMQDestination;
  import org.apache.activemq.command.ActiveMQQueue;
  import org.apache.activemq.command.ActiveMQTopic;
  import org.apache.activemq.transport.tcp.TcpTransport;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  // see: https://issues.apache.org/activemq/browse/AMQ-2668
  public class PerDestinationStoreLimitTest extends JmsTestSupport {
  
     static final Logger LOG = LoggerFactory.getLogger(PerDestinationStoreLimitTest.class);
     final String oneKb = new String(new byte[1024]);
  
     ActiveMQDestination queueDest = new ActiveMQQueue("PerDestinationStoreLimitTest.Queue");
     ActiveMQDestination topicDest = new ActiveMQTopic("PerDestinationStoreLimitTest.Topic");
  
     protected TransportConnector connector;
     protected ActiveMQConnection connection;
  
     public void testDLQAfterBlockTopic() throws Exception {
        doTestDLQAfterBlock(topicDest);
     }
  
     public void testDLQAfterBlockQueue() throws Exception {
        doTestDLQAfterBlock(queueDest);
     }
  
     public void doTestDLQAfterBlock(ActiveMQDestination destination) throws Exception {
        ActiveMQConnectionFactory factory = (ActiveMQConnectionFactory) createConnectionFactory();
        RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
        // Immediately sent to the DLQ on rollback, no redelivery
        redeliveryPolicy.setMaximumRedeliveries(0);
        factory.setRedeliveryPolicy(redeliveryPolicy);
  
        // Separate connection for consumer so it will not be blocked by filler thread
        // sending when it blocks
        connection = (ActiveMQConnection) factory.createConnection();
        connections.add(connection);
        connection.setClientID("someId");
        connection.start();
  
        final Session consumerSession = connection.createSession(true, Session.SESSION_TRANSACTED);
        MessageConsumer consumer = destination.isQueue() ? consumerSession.createConsumer(destination) : consumerSession.createDurableSubscriber((Topic) destination, "Durable");
  
        connection = (ActiveMQConnection) factory.createConnection();
        connections.add(connection);
        connection.start();
  
        final Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
        final MessageProducer producer = session.createProducer(destination);
  
        final AtomicBoolean done = new AtomicBoolean(true);
        final AtomicBoolean keepGoing = new AtomicBoolean(true);
        final CountDownLatch fillerStarted = new CountDownLatch(1);
  
        final AtomicLong sent = new AtomicLong(0);
        Thread thread = new Thread("Filler") {
           int i;
  
           @Override
           public void run() {
              while (keepGoing.get()) {
                 done.set(false);
                 fillerStarted.countDown();
                 try {
                    producer.send(session.createTextMessage(oneKb + ++i));
                    if (i % 10 == 0) {
                       session.commit();
                       sent.getAndAdd(10);
                       LOG.info("committed/sent: " + sent.get());
                    }
                    LOG.info("sent: " + i);
                 } catch (JMSException e) {
                 }
              }
           }
        };
        thread.start();
  
        assertTrue("filler started..", fillerStarted.await(20, TimeUnit.SECONDS));
        waitForBlocked(done);
  
        // consume and rollback some so message gets to DLQ
        connection = (ActiveMQConnection) factory.createConnection();
        connections.add(connection);
        connection.start();
        TextMessage msg;
        int received = 0;
        for (; received < sent.get(); ++received) {
           msg = (TextMessage) consumer.receive(4000);
           if (msg == null) {
              LOG.info("received null on count: " + received);
              break;
           }
           LOG.info("received: " + received + ", msg: " + msg.getJMSMessageID());
           if (received % 5 == 0) {
              if (received % 3 == 0) {
                 // force the use of the DLQ which will use some more store
                 LOG.info("rollback on : " + received);
                 consumerSession.rollback();
              } else {
                 LOG.info("commit on : " + received);
                 consumerSession.commit();
              }
           }
        }
        LOG.info("Done:: sent: " + sent.get() + ", received: " + received);
        keepGoing.set(false);
        assertTrue("some were sent:", sent.get() > 0);
        assertEquals("received what was committed", sent.get(), received);
     }
  
     protected void waitForBlocked(final AtomicBoolean done) throws InterruptedException {
        while (true) {
           Thread.sleep(1000);
           // the producer is blocked once the done flag stays true
           if (done.get()) {
              LOG.info("Blocked....");
              break;
           }
           done.set(true);
        }
     }
  
     @Override
     protected BrokerService createBroker() throws Exception {
        BrokerService service = new BrokerService();
        service.setDeleteAllMessagesOnStartup(true);
  
        service.setUseJmx(false);
  
        service.getSystemUsage().getStoreUsage().setLimit(200 * 1024);
  
        // allow destination to use 50% of store, leaving 50% for DLQ.
        PolicyMap policyMap = new PolicyMap();
        PolicyEntry policy = new PolicyEntry();
        policy.setStoreUsageHighWaterMark(50);
        policyMap.put(queueDest, policy);
        policyMap.put(topicDest, policy);
        service.setDestinationPolicy(policyMap);
  
        connector = service.addConnector("tcp://localhost:0");
        return service;
     }
  
     @Override
     public void setUp() throws Exception {
        setAutoFail(true);
        super.setUp();
     }
  
     @Override
     protected void tearDown() throws Exception {
        if (connection != null) {
           TcpTransport t = connection.getTransport().narrow(TcpTransport.class);
           t.getTransportListener().onException(new IOException("Disposed."));
           connection.getTransport().stop();
           super.tearDown();
        }
     }
  
     @Override
     protected ConnectionFactory createConnectionFactory() throws Exception {
        return new ActiveMQConnectionFactory(connector.getConnectUri());
     }
  }
  