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ActiveMQ example source code file (ThreeBrokerStompTemporaryQueueTest.java)

This example ActiveMQ source code file (ThreeBrokerStompTemporaryQueueTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

advisory, advisory, brokera, brokera, brokerb, brokerb, brokerc, brokerc, brokerservice, destination, exception, io, net, network, networkconnector, string, uri, util

The ActiveMQ ThreeBrokerStompTemporaryQueueTest.java source code

/**
 * 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 java.io.File;
import java.io.IOException;
import java.net.URI;
import java.util.List;

import org.apache.activemq.JmsMultipleBrokersTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.network.DiscoveryNetworkConnector;
import org.apache.activemq.network.NetworkConnector;
import org.apache.activemq.store.kahadb.KahaDBStore;
import org.apache.activemq.transport.stomp.Stomp;
import org.apache.activemq.transport.stomp.StompConnection;
import org.apache.activemq.transport.stomp.StompFrame;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


public class ThreeBrokerStompTemporaryQueueTest extends JmsMultipleBrokersTestSupport {
    private static final Logger LOG = LoggerFactory.getLogger(ThreeBrokerStompTemporaryQueueTest.class);
    private StompConnection stompConnection;

    protected NetworkConnector bridgeBrokers(BrokerService localBroker, BrokerService remoteBroker, boolean dynamicOnly, int networkTTL, boolean conduit, boolean failover) throws Exception {
        List<TransportConnector> transportConnectors = remoteBroker.getTransportConnectors();
        URI remoteURI;
        if (!transportConnectors.isEmpty()) {
            remoteURI = transportConnectors.get(0).getConnectUri();
            NetworkConnector connector = new DiscoveryNetworkConnector(new URI("static:" + remoteURI));
            connector.setName(localBroker.getBrokerName() + remoteBroker.getBrokerName());
            localBroker.addNetworkConnector(connector);
            maxSetupTime = 2000;
            return connector;
        } else {
            throw new Exception("Remote broker has no registered connectors.");
        }
    }

    public void testStompTemporaryQueue() throws Exception {
        // Setup broker networks
        bridgeAndConfigureBrokers("BrokerA", "BrokerB");
        bridgeAndConfigureBrokers("BrokerA", "BrokerC");
        bridgeAndConfigureBrokers("BrokerB", "BrokerA");
        bridgeAndConfigureBrokers("BrokerB", "BrokerC");
        bridgeAndConfigureBrokers("BrokerC", "BrokerA");
        bridgeAndConfigureBrokers("BrokerC", "BrokerB");

        startAllBrokers();
        waitForBridgeFormation();

        Thread.sleep(1000);

        stompConnection = new StompConnection();
        stompConnection.open("localhost", 61614);
        // Creating a temp queue
        stompConnection.sendFrame("CONNECT\n" + "login: system\n" + "passcode: manager\n\n" + Stomp.NULL);

        StompFrame frame = stompConnection.receive();
        assertTrue(frame.toString().startsWith("CONNECTED"));

        stompConnection.subscribe("/temp-queue/meaningless", "auto");
        stompConnection.send("/temp-queue/meaningless", "Hello World");

        frame = stompConnection.receive(3000);
        assertEquals("Hello World", frame.getBody());

        Thread.sleep(1000);

        assertEquals("Destination", 1, brokers.get("BrokerA").broker.getAdminView().getTemporaryQueues().length);
        assertEquals("Destination", 1, brokers.get("BrokerB").broker.getAdminView().getTemporaryQueues().length);
        assertEquals("Destination", 1, brokers.get("BrokerC").broker.getAdminView().getTemporaryQueues().length);

        int advisoryTopicsForTempQueues;
        advisoryTopicsForTempQueues = countTopicsByName("BrokerA", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should be present", 1, advisoryTopicsForTempQueues);

        advisoryTopicsForTempQueues = countTopicsByName("BrokerB", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should be present", 1, advisoryTopicsForTempQueues);

        advisoryTopicsForTempQueues = countTopicsByName("BrokerC", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should be present", 1, advisoryTopicsForTempQueues);

        stompConnection.disconnect();
        
        Thread.sleep(1000);
        
        advisoryTopicsForTempQueues = countTopicsByName("BrokerA", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
        advisoryTopicsForTempQueues = countTopicsByName("BrokerB", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
        advisoryTopicsForTempQueues = countTopicsByName("BrokerC", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);  
        

        LOG.info("Restarting brokerA");
        BrokerItem brokerItem = brokers.remove("BrokerA");
        if (brokerItem != null) {
            brokerItem.destroy();
        }
        
        BrokerService restartedBroker = createAndConfigureBroker(new URI("broker:(tcp://localhost:61616,stomp://localhost:61613)/BrokerA"));
        bridgeAndConfigureBrokers("BrokerA", "BrokerB");
        bridgeAndConfigureBrokers("BrokerA", "BrokerC");
        restartedBroker.start();
        waitForBridgeFormation();
        
        Thread.sleep(3000);

        assertEquals("Destination", 0, brokers.get("BrokerA").broker.getAdminView().getTemporaryQueues().length);
        assertEquals("Destination", 0, brokers.get("BrokerB").broker.getAdminView().getTemporaryQueues().length);
        assertEquals("Destination", 0, brokers.get("BrokerC").broker.getAdminView().getTemporaryQueues().length);

        advisoryTopicsForTempQueues = countTopicsByName("BrokerA", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
        advisoryTopicsForTempQueues = countTopicsByName("BrokerB", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
        advisoryTopicsForTempQueues = countTopicsByName("BrokerC", "ActiveMQ.Advisory.Consumer.Queue.ID");
        assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);

    }

    private int countTopicsByName(String broker, String name)
            throws Exception {
        int advisoryTopicsForTempQueues = 0;
        for(int i=0; i<brokers.get(broker).broker.getAdminView().getTopics().length; i++){
            if(brokers.get(broker).broker.getAdminView().getTopics()[i].toString().contains(name)){
                advisoryTopicsForTempQueues++;
            }
        }
        return advisoryTopicsForTempQueues;
    }


    private void bridgeAndConfigureBrokers(String local, String remote) throws Exception {
        NetworkConnector bridge = bridgeBrokers(local, remote);
    }

    public void setUp() throws Exception {
        super.setAutoFail(true);
        super.setUp();
        String options = new String("?deleteAllMessagesOnStartup=true");
        createAndConfigureBroker(new URI("broker:(tcp://localhost:61616,stomp://localhost:61613)/BrokerA" + options));
        createAndConfigureBroker(new URI("broker:(tcp://localhost:61617,stomp://localhost:61614)/BrokerB" + options));
        createAndConfigureBroker(new URI("broker:(tcp://localhost:61618,stomp://localhost:61615)/BrokerC" + options));

    }

    private BrokerService createAndConfigureBroker(URI uri) throws Exception {
        BrokerService broker = createBroker(uri);

        configurePersistenceAdapter(broker);

        return broker;
    }

    protected void configurePersistenceAdapter(BrokerService broker) throws IOException {
        File dataFileDir = new File("target/test-amq-data/kahadb/" + broker.getBrokerName());
        KahaDBStore kaha = new KahaDBStore();
        kaha.setDirectory(dataFileDir);
        broker.setPersistenceAdapter(kaha);
    }

}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ ThreeBrokerStompTemporaryQueueTest.java source code file:

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