Merged out from trunkQPID-2519

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/QPID-2519@1187375 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 163 insertions, 0 deletions

diff --git a/cpp/examples/old_api/request-response/client.cpp b/cpp/examples/old_api/request-response/client.cpp
new file mode 100644
index 0000000000..679d1c5fc2
--- /dev/null
+++ b/cpp/examples/old_api/request-response/client.cpp
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+/*
+ *
+ * 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.
+ *
+ */
+
+
+/**
+ *  client.cpp
+ *
+ *  This program is one of two programs that illustrate the
+ *  request/response pattern.
+ *  
+ *
+ *  client.cpp  (this program) 
+ *   
+ *     A client application that sends messages to the "amq.direct"
+ *     exchange, using the routing key "request" to route messages to
+ *     the server.
+ *
+ *     Each instance of the client creates its own private response
+ *     queue, binding it to the "amq.direct" exchange using it's
+ *     session identifier as the routing key, and places its session
+ *     identifier in the "reply-to" property of each message it sends.
+ *
+ *
+ *  server.cpp
+ *
+ *     A service that accepts messages from a request queue, converts
+ *     their content to upper case, and sends the result to the
+ *     original sender.
+ *
+ *     This program creates a request queue, binds it to "amq.direct"
+ *     using the routing key "request", then receives messages from
+ *     the request queue. Each incoming message is converted to upper
+ *     case, then sent to the "amq.direct" exchange using the
+ *     request's reply-to property as the routing key for the
+ *     response.
+ *
+ *
+ */
+
+#include <qpid/client/Connection.h>
+#include <qpid/client/Session.h>
+#include <qpid/client/Message.h>
+#include <qpid/client/MessageListener.h>
+#include <qpid/client/SubscriptionManager.h>
+
+#include <cstdlib>
+#include <iostream>
+
+#include <sstream>
+
+using namespace qpid::client;
+using namespace qpid::framing;
+
+using std::stringstream;
+using std::string;
+
+class Listener : public MessageListener{
+  private:
+    SubscriptionManager& subscriptions;
+    int counter;
+  public:
+    Listener(SubscriptionManager& subscriptions);
+    virtual void received(Message& message);
+};
+
+Listener::Listener(SubscriptionManager& subs) : subscriptions(subs), counter(0)
+{}
+
+void Listener::received(Message& message) {
+    std::cout << "Response: " << message.getData() << std::endl;
+
+    ++ counter;
+    if (counter > 3) {
+        std::cout << "Shutting down listener for " << message.getDestination() << std::endl;
+        subscriptions.cancel(message.getDestination());
+    }
+}
+
+
+
+int main(int argc, char** argv) {
+    const char* host = argc>1 ? argv[1] : "127.0.0.1";
+    int port = argc>2 ? atoi(argv[2]) : 5672;
+    Connection connection;
+    try {
+        connection.open(host, port);
+        Session session =  connection.newSession();
+
+        //--------- Main body of program --------------------------------------------
+
+	// Create a response queue so the server can send us responses
+	// to our requests. Use the client's session ID as the name
+	// of the response queue.
+
+	stringstream response_queue;
+	response_queue << "client" << session.getId().getName();
+
+        // Use the name of the response queue as the routing key
+
+	session.queueDeclare(arg::queue=response_queue.str());
+        session.exchangeBind(arg::exchange="amq.direct", arg::queue=response_queue.str(), arg::bindingKey=response_queue.str());
+
+	// Each client sends the name of their own response queue so
+	// the service knows where to route messages.
+
+    	Message request;
+	request.getDeliveryProperties().setRoutingKey("request");
+	request.getMessageProperties().setReplyTo(ReplyTo("amq.direct", response_queue.str()));
+
+	// Create a listener for the response queue and listen for response messages.
+        std::cout << "Activating response queue listener for: " << response_queue.str() << std::endl;
+        SubscriptionManager subscriptions(session);
+        Listener listener(subscriptions);
+        subscriptions.subscribe(listener, response_queue.str());
+
+	// Now send some requests ...
+
+	string s[] = {
+            "Twas brillig, and the slithy toves",
+            "Did gire and gymble in the wabe.",
+            "All mimsy were the borogroves,",
+            "And the mome raths outgrabe."
+        };
+
+
+	for (int i=0; i<4; i++) {
+            request.setData(s[i]);
+            session.messageTransfer(arg::content=request, arg::destination="amq.direct");
+            std::cout << "Request: " << s[i] << std::endl;
+	}
+
+        std::cout << "Waiting for all responses to arrive ..." << std::endl;
+	subscriptions.run();
+
+        //-----------------------------------------------------------------------------
+
+        connection.close();
+        return 0;
+    } catch(const std::exception& error) {
+        std::cout << error.what() << std::endl;
+    }
+    return 1;
+}
+
+