activemq-unit-tests/src/test/java/org/apache/activemq/usecases/DurableRedeliveryTest.java

/**
 * 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.usecases;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.Topic;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnection;
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.util.Wait;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Test for AMQ-7071
 * Test to show prefetched messages will be marked as redelivered if connection terminated improperly
 * and the lastDeliveredSequenceId is unknown
 */
public class DurableRedeliveryTest {

    static final Logger LOG = LoggerFactory.getLogger(DurableRedeliveryTest.class);
    BrokerService broker = null;
    String topicName = "testTopic";

    @Before
    public void setUp() throws Exception {
        broker = new BrokerService();
        configureBroker(broker);
        broker.start();
    }

    @After
    public void tearDown() throws Exception {
        broker.stop();
    }

    protected void configureBroker(BrokerService broker) throws Exception {
        PolicyMap policyMap = new PolicyMap();
        PolicyEntry policy = new PolicyEntry();
        policyMap.setDefaultEntry(policy);
        broker.setDestinationPolicy(policyMap);
        broker.setPersistent(false);
        broker.addConnector("tcp://0.0.0.0:0");
    }

    @Test
    public void testRedeliveryFlagAfterConnectionKill() throws Exception {

        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
                broker.getTransportConnectors().get(0).getPublishableConnectString());
        ActiveMQConnection producerConnection = (ActiveMQConnection) connectionFactory.createConnection();
        ActiveMQConnection durableConnection = (ActiveMQConnection) connectionFactory.createConnection();
        durableConnection.setClientID("clientId");
        producerConnection.start();
        durableConnection.start();

        Session session = durableConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic(topicName);
        MessageConsumer consumer = session.createDurableSubscriber(topic, "sub1");

        populateDestination(1, topic, producerConnection);
        producerConnection.close();
        Wait.waitFor(() -> broker.getBroker().getClients().length == 1);

        //Close the connection on the broker side (not the client) so the delivered status of the
        //prefetched message will be unknown which should now trigger the previously dispatched message
        //to be marked as redelivered
        TransportConnector connector = broker.getTransportConnectors().get(0);
        TransportConnection connection = connector.getConnections().stream().findFirst().get();
        connection.stop();
        Wait.waitFor(() -> broker.getBroker().getClients().length == 0);

        //Reconnect and consume the message
        durableConnection = (ActiveMQConnection) connectionFactory.createConnection();
        durableConnection.setClientID("clientId");
        durableConnection.start();

        session = durableConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        topic = session.createTopic(topicName);
        consumer = session.createDurableSubscriber(topic, "sub1");

        Message msg = consumer.receive(2000);
        LOG.info("got: " + msg);
        assertNotNull("got the message", msg);
        assertTrue("got the message has redelivered flag", msg.getJMSRedelivered());

        producerConnection.close();
        durableConnection.close();
    }

    private void populateDestination(final int nbMessages, final Destination destination, javax.jms.Connection connection) throws JMSException {
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(destination);
        for (int i = 1; i <= nbMessages; i++) {
            producer.send(session.createTextMessage("test: " + i));
        }
        producer.close();
        session.close();
    }

}