trunk/activemq-core/src/test/java/org/apache/activemq/broker/policy/NoConsumerDeadLetterTest.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.broker.policy;

import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.advisory.AdvisorySupport;
import org.apache.activemq.broker.BrokerService;
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;

/**
 * 
 */
public class NoConsumerDeadLetterTest extends DeadLetterTestSupport {

    // lets disable the inapplicable tests
    public void testDurableQueueMessage() throws Exception {
    }

    public void testDurableTopicMessage() throws Exception {
    }

    protected void doTest() throws Exception {
        makeDlqConsumer();
        sendMessages();

        for (int i = 0; i < messageCount; i++) {
            Message msg = dlqConsumer.receive(1000);
            assertNotNull("Should be a message for loop: " + i, msg);
        }
    }
    
    public void testConsumerReceivesMessages() throws Exception {
    	this.topic = false;
        ActiveMQConnectionFactory factory = (ActiveMQConnectionFactory)createConnectionFactory();
        connection = (ActiveMQConnection)factory.createConnection();
        connection.start();

        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(getDestination());
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
   
        Topic advisoryTopic = AdvisorySupport.getNoQueueConsumersAdvisoryTopic(getDestination());
        MessageConsumer advisoryConsumer = session.createConsumer(advisoryTopic);
        
        TextMessage msg = session.createTextMessage("Message: x");
        producer.send(msg);
        
        Message advisoryMessage = advisoryConsumer.receive(1000);
        assertNotNull("Advisory message not received", advisoryMessage);
        
        Thread.sleep(1000);
        
        factory = (ActiveMQConnectionFactory)createConnectionFactory();
        connection = (ActiveMQConnection)factory.createConnection();
        connection.start();
        
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        
        MessageConsumer consumer = session.createConsumer(getDestination());
        Message received = consumer.receive(1000);
        assertNotNull("Message not received", received);
    }

    protected BrokerService createBroker() throws Exception {
        BrokerService broker = super.createBroker();

        PolicyEntry policy = new PolicyEntry();
        policy.setSendAdvisoryIfNoConsumers(true);

        PolicyMap pMap = new PolicyMap();
        pMap.setDefaultEntry(policy);

        broker.setDestinationPolicy(pMap);

        return broker;
    }

    protected Destination createDlqDestination() {
    	if (this.topic) {
    		return AdvisorySupport.getNoTopicConsumersAdvisoryTopic((ActiveMQDestination)getDestination());
    	} else {
    		return AdvisorySupport.getNoQueueConsumersAdvisoryTopic((ActiveMQDestination)getDestination());
    	}
    }

}