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ActiveMQ example source code file (WireformatNegociationTest.java)

This example ActiveMQ source code file (WireformatNegociationTest.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

async, async, atomicboolean, atomicreference, atomicreference, connect, connect, countdownlatch, exception, exception, io, net, network, threading, threads, transportlistener, uri, urisyntaxexception, wireformatinfo

The ActiveMQ WireformatNegociationTest.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.transport.tcp;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;

import org.apache.activemq.CombinationTestSupport;
import org.apache.activemq.command.CommandTypes;
import org.apache.activemq.command.WireFormatInfo;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.transport.TransportAcceptListener;
import org.apache.activemq.transport.TransportFactory;
import org.apache.activemq.transport.TransportListener;
import org.apache.activemq.transport.TransportServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class WireformatNegociationTest extends CombinationTestSupport {
    private static final Logger LOG = LoggerFactory.getLogger(WireformatNegociationTest.class);

    private TransportServer server;
    private Transport clientTransport;
    private Transport serverTransport;

    private final AtomicReference<WireFormatInfo> clientWF = new AtomicReference();
    private final AtomicReference<WireFormatInfo> serverWF = new AtomicReference();
    private final AtomicReference<Exception> asyncError = new AtomicReference();
    private final AtomicBoolean ignoreAsycError = new AtomicBoolean();

    private final CountDownLatch negociationCounter = new CountDownLatch(2);

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

    /**
     * @throws Exception
     * @throws URISyntaxException
     */
    private void startClient(String uri) throws Exception, URISyntaxException {
        clientTransport = TransportFactory.connect(new URI(uri));
        clientTransport.setTransportListener(new TransportListener() {
            public void onCommand(Object command) {
                if (command instanceof WireFormatInfo) {
                    clientWF.set((WireFormatInfo)command);
                    negociationCounter.countDown();
                }
            }

            public void onException(IOException error) {
                if (!ignoreAsycError.get()) {
                    LOG.info("Client transport error: ", error);
                    asyncError.set(error);
                    negociationCounter.countDown();
                }
            }

            public void transportInterupted() {
            }

            public void transportResumed() {
            }
        });
        clientTransport.start();
    }

    /**
     * @throws IOException
     * @throws URISyntaxException
     * @throws Exception
     */
    private void startServer(String uri) throws IOException, URISyntaxException, Exception {
        server = TransportFactory.bind(new URI(uri));
        server.setAcceptListener(new TransportAcceptListener() {
            public void onAccept(Transport transport) {
                try {
                    LOG.info("[" + getName() + "] Server Accepted a Connection");
                    serverTransport = transport;
                    serverTransport.setTransportListener(new TransportListener() {
                        public void onCommand(Object command) {
                            if (command instanceof WireFormatInfo) {
                                serverWF.set((WireFormatInfo)command);
                                negociationCounter.countDown();
                            }
                        }

                        public void onException(IOException error) {
                            if (!ignoreAsycError.get()) {
                                LOG.info("Server transport error: ", error);
                                asyncError.set(error);
                                negociationCounter.countDown();
                            }
                        }

                        public void transportInterupted() {
                        }

                        public void transportResumed() {
                        }
                    });
                    serverTransport.start();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

            public void onAcceptError(Exception error) {
                error.printStackTrace();
            }
        });
        server.start();
    }

    protected void tearDown() throws Exception {
        ignoreAsycError.set(true);
        try {
            if (clientTransport != null) {
                clientTransport.stop();
            }
            if (serverTransport != null) {
                serverTransport.stop();
            }
            if (server != null) {
                server.stop();
            }
        } catch (Throwable e) {
            e.printStackTrace();
        }
        super.tearDown();
    }

    /**
     * @throws Exception
     */
    public void testWireFomatInfoSeverVersion1() throws Exception {

        startServer("tcp://localhost:61616?wireFormat.version=1");
        startClient("tcp://localhost:61616");

        assertTrue("Connect timeout", negociationCounter.await(10, TimeUnit.SECONDS));
        assertNull("Async error: " + asyncError, asyncError.get());

        assertNotNull(clientWF.get());
        assertEquals(1, clientWF.get().getVersion());

        assertNotNull(serverWF.get());
        assertEquals(1, serverWF.get().getVersion());
    }

    /**
     * @throws Exception
     */
    public void testWireFomatInfoClientVersion1() throws Exception {

        startServer("tcp://localhost:61616");
        startClient("tcp://localhost:61616?wireFormat.version=1");

        assertTrue("Connect timeout", negociationCounter.await(10, TimeUnit.SECONDS));
        assertNull("Async error: " + asyncError, asyncError.get());

        assertNotNull(clientWF.get());
        assertEquals(1, clientWF.get().getVersion());

        assertNotNull(serverWF.get());
        assertEquals(1, serverWF.get().getVersion());
    }

    /**
     * @throws Exception
     */
    public void testWireFomatInfoCurrentVersion() throws Exception {

        startServer("tcp://localhost:61616");
        startClient("tcp://localhost:61616");

        assertTrue("Connect timeout", negociationCounter.await(10, TimeUnit.SECONDS));
        assertNull("Async error: " + asyncError, asyncError.get());

        assertNotNull(clientWF.get());
        assertEquals(CommandTypes.PROTOCOL_VERSION, clientWF.get().getVersion());

        assertNotNull(serverWF.get());
        assertEquals(CommandTypes.PROTOCOL_VERSION, serverWF.get().getVersion());
    }
    
    public void testWireFomatInactivityDurationInitalDelay() throws Exception {

        startServer("tcp://localhost:61616");
        startClient("tcp://localhost:61616?wireFormat.maxInactivityDurationInitalDelay=60000");

        assertTrue("Connect timeout", negociationCounter.await(10, TimeUnit.SECONDS));
        assertNull("Async error: " + asyncError, asyncError.get());

        assertNotNull(clientWF.get());
        assertEquals(CommandTypes.PROTOCOL_VERSION, clientWF.get().getVersion());

        assertNotNull(serverWF.get());
        assertEquals(CommandTypes.PROTOCOL_VERSION, serverWF.get().getVersion());
    }

}

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