QPID-832 merge M2.x

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk@651133 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 171 insertions, 0 deletions

diff --git a/qpid/java/client/example/src/main/java/org/apache/qpid/example/transport/ExistingSocketConnectorDemo.java b/qpid/java/client/example/src/main/java/org/apache/qpid/example/transport/ExistingSocketConnectorDemo.java
new file mode 100644
index 0000000000..d7eb138523
--- /dev/null
+++ b/qpid/java/client/example/src/main/java/org/apache/qpid/example/transport/ExistingSocketConnectorDemo.java
@@ -0,0 +1,171 @@
+/*
+ *
+ * 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.qpid.example.transport;
+
+import org.apache.qpid.AMQException;
+import org.apache.qpid.client.AMQConnection;
+import org.apache.qpid.client.transport.TransportConnection;
+import org.apache.qpid.jms.ConnectionListener;
+import org.apache.qpid.url.URLSyntaxException;
+
+import javax.jms.Connection;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.Session;
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.nio.channels.SocketChannel;
+import java.util.UUID;
+
+/**
+ * This is a simple application that demonstrates how you can use the Qpid AMQP interfaces to use existing sockets as
+ * the transport for the Client API.
+ *
+ * The Demo here runs twice:
+ * 1. Just to show a simple publish and receive.
+ * 2. To demonstrate how to use existing sockets and utilise the underlying client failover mechnaism.
+ */
+public class ExistingSocketConnectorDemo implements ConnectionListener
+{
+    private static boolean DEMO_FAILOVER = false;
+
+    public static void main(String[] args) throws IOException, URLSyntaxException, AMQException, JMSException
+    {
+        System.out.println("Testing socket connection to localhost:5672.");
+
+        new ExistingSocketConnectorDemo();
+
+        System.out.println("Testing socket connection failover between localhost:5672 and localhost:5673.");
+
+        DEMO_FAILOVER = true;
+
+        new ExistingSocketConnectorDemo();
+    }
+
+    Connection _connection;
+    MessageProducer _producer;
+    Session _session;
+
+    String Socket1_ID = UUID.randomUUID().toString();
+    String Socket2_ID = UUID.randomUUID().toString();
+
+
+
+    /** Here we can see the broker we are connecting to is set to be 'socket:///' signifying we will provide the socket. */
+    public final String CONNECTION = "amqp://guest:guest@id/test?brokerlist='socket://" + Socket1_ID + ";socket://" + Socket2_ID + "'";
+
+
+    public ExistingSocketConnectorDemo() throws IOException, URLSyntaxException, AMQException, JMSException
+    {
+
+        Socket socket = SocketChannel.open().socket();
+        socket.connect(new InetSocketAddress("localhost", 5672));
+
+        TransportConnection.registerOpenSocket(Socket1_ID, socket);
+
+
+        _connection = new AMQConnection(CONNECTION);
+
+        _session = _connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+
+        MessageConsumer consumer = _session.createConsumer(_session.createQueue("Queue"));
+
+        _producer = _session.createProducer(_session.createQueue("Queue"));
+
+        _connection.start();
+
+        if (!DEMO_FAILOVER)
+        {
+            _producer.send(_session.createTextMessage("Simple Test"));
+        }
+        else
+        {
+            // Using the Qpid interfaces we can set a listener that allows us to demonstrate failover
+            ((AMQConnection) _connection).setConnectionListener(this);
+
+            System.out.println("Testing failover: Please ensure second broker running on localhost:5673 and shutdown broker on 5672.");
+        }
+
+        //We do a blocking receive here so that we can demonstrate failover.
+        Message message = consumer.receive();
+
+        System.out.println("Recevied :" + message);
+
+        _connection.close();
+    }
+
+    // ConnectionListener Interface
+
+    public void bytesSent(long count)
+    {
+        //not used in this example
+    }
+    public void bytesReceived(long count)
+    {
+        //not used in this example
+    }
+
+    public boolean preFailover(boolean redirect)
+    {
+        /**
+         * This method is called before the underlying client library starts to reconnect. This gives us the opportunity
+         * to set a new socket for the failover to occur on.
+         */
+        try
+        {
+            Socket socket = SocketChannel.open().socket();
+
+            socket.connect(new InetSocketAddress("localhost", 5673));
+
+            // This is the new method to pass in an open socket for the connection to use.
+            TransportConnection.registerOpenSocket(Socket2_ID, socket);
+        }
+        catch (IOException e)
+        {
+            e.printStackTrace();
+            return false;
+        }
+        return true;
+    }
+
+    public boolean preResubscribe()
+    {
+        //not used in this example - but must return true to allow the resubscription of existing clients.
+        return true;
+    }
+
+    public void failoverComplete()
+    {
+        // Now that failover has completed we can send a message that the receiving thread will pick up
+        try
+        {
+            _producer.send(_session.createTextMessage("Simple Failover Test"));
+        }
+        catch (JMSException e)
+        {
+            e.printStackTrace();
+        }
+    }
+}