ActiveMQ example source code file (NetworkTestSupport.java)

This example ActiveMQ source code file (NetworkTestSupport.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

brokerservice, brokerservice, exception, exception, io, ioexception, net, network, persistenceadapter, string, stubconnection, stubconnection, transport, transport, transportconnector, uri, urisyntaxexception, util

The ActiveMQ NetworkTestSupport.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.network;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Iterator;

import org.apache.activemq.broker.BrokerFactory;
import org.apache.activemq.broker.BrokerRegistry;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.BrokerTestSupport;
import org.apache.activemq.broker.StubConnection;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.store.PersistenceAdapter;
import org.apache.activemq.store.memory.MemoryPersistenceAdapter;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.transport.TransportFactory;
import org.apache.activemq.usage.SystemUsage;

public class NetworkTestSupport extends BrokerTestSupport {

    protected ArrayList connections = new ArrayList();

    protected TransportConnector connector;

    protected PersistenceAdapter remotePersistenceAdapter;
    protected BrokerService remoteBroker;
    protected SystemUsage remoteMemoryManager;
    protected TransportConnector remoteConnector;

    protected void setUp() throws Exception {
        super.setUp();

        remotePersistenceAdapter = createRemotePersistenceAdapter(true);        
        remoteBroker = createRemoteBroker(remotePersistenceAdapter);
        remoteConnector = createRemoteConnector();
        remoteBroker.addConnector( remoteConnector );
        BrokerRegistry.getInstance().bind("remotehost", remoteBroker);
        remoteBroker.start();
    }
    
    
    protected BrokerService createBroker() throws Exception {
        BrokerService broker = BrokerFactory.createBroker(new URI("broker:()/localhost?persistent=false&useJmx=false&"));
        connector = createConnector();
        broker.addConnector(connector);
        return broker;
    }


    /**
     * @return
     * @throws Exception
     * @throws IOException
     * @throws URISyntaxException
     */
    protected TransportConnector createRemoteConnector() throws Exception, IOException, URISyntaxException {
        return new TransportConnector(TransportFactory.bind(new URI(getRemoteURI())));
    }

    /**
     * @param value
     * @return
     * @throws Exception
     * @throws IOException
     * @throws URISyntaxException
     */
    protected TransportConnector createConnector() throws Exception, IOException, URISyntaxException {
        return new TransportConnector(TransportFactory.bind(new URI(getLocalURI())));
    }

    protected String getRemoteURI() {
        return "vm://remotehost";
    }

    protected String getLocalURI() {
        return "vm://localhost";
    }

    protected PersistenceAdapter createRemotePersistenceAdapter(boolean clean) throws Exception {
        if (remotePersistenceAdapter == null || clean) {
            remotePersistenceAdapter = new MemoryPersistenceAdapter();
        }
        return remotePersistenceAdapter;
    }

    protected BrokerService createRemoteBroker(PersistenceAdapter persistenceAdapter) throws Exception {
        BrokerService answer = new BrokerService();
        answer.setBrokerName("remote");
        answer.setUseJmx(false);
        answer.setPersistenceAdapter(persistenceAdapter);
        return answer;
    }

    protected StubConnection createConnection() throws Exception {
        Transport transport = TransportFactory.connect(connector.getServer().getConnectURI());
        StubConnection connection = new StubConnection(transport);
        connections.add(connection);
        return connection;
    }

    protected StubConnection createRemoteConnection() throws Exception {
        Transport transport = TransportFactory.connect(remoteConnector.getServer().getConnectURI());
        StubConnection connection = new StubConnection(transport);
        connections.add(connection);
        return connection;
    }

    protected Transport createTransport() throws Exception {
        Transport transport = TransportFactory.connect(connector.getServer().getConnectURI());
        return transport;
    }

    protected Transport createRemoteTransport() throws Exception {
        Transport transport = TransportFactory.connect(remoteConnector.getServer().getConnectURI());
        return transport;
    }

    /**
     * Simulates a broker restart. The memory based persistence adapter is
     * reused so that it does not "loose" it's "persistent" messages.
     * 
     * @throws Exception
     */
    protected void restartRemoteBroker() throws Exception {

        BrokerRegistry.getInstance().unbind("remotehost");
        remoteConnector.stop();

        remoteBroker.stop();
        remotePersistenceAdapter.stop();
        remotePersistenceAdapter = createRemotePersistenceAdapter(false);
        remotePersistenceAdapter.start();
        
        remoteBroker = createRemoteBroker(remotePersistenceAdapter);
        remoteBroker.addConnector(getRemoteURI());
        remoteBroker.start();
        BrokerRegistry.getInstance().bind("remotehost", remoteBroker);
    }

    protected void tearDown() throws Exception {
        for (Iterator iter = connections.iterator(); iter.hasNext();) {
            StubConnection connection = (StubConnection)iter.next();
            connection.stop();
            iter.remove();
        }

        BrokerRegistry.getInstance().unbind("remotehost");
        remoteConnector.stop();
        connector.stop();

        remoteBroker.stop();
        remoteBroker.waitUntilStopped();
        remotePersistenceAdapter.stop();
        super.tearDown();
    }

}