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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.
- *
- */
-
-
-/**
- * server.cpp
- *
- * This program is one of two programs that illustrate the
- * request/response pattern.
- *
- *
- * client.cpp
- *
- * 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 (this program)
- *
- * 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/AsyncSession.h>
-#include <qpid/client/Message.h>
-#include <qpid/client/MessageListener.h>
-#include <qpid/client/SubscriptionManager.h>
-
-#include <unistd.h>
-#include <cstdlib>
-#include <iostream>
-
-#include <sstream>
-#include <string>
-
-using namespace qpid::client;
-using namespace qpid::framing;
-using std::stringstream;
-using std::string;
-
-class Listener : public MessageListener{
- private:
- SubscriptionManager& subscriptions;
- AsyncSession asyncSession;
- public:
- Listener(SubscriptionManager& subscriptions, Session& session);
- virtual void received(Message& message);
-};
-
-Listener::Listener(SubscriptionManager& subs, Session& session)
- : subscriptions(subs), asyncSession(session)
-{}
-
-void Listener::received(Message& request) {
- Message response;
-
- // Get routing key for response from the request's replyTo property
- string routingKey;
-
- if (request.getMessageProperties().hasReplyTo()) {
- routingKey = request.getMessageProperties().getReplyTo().getRoutingKey();
- } else {
- std::cout << "Error: " << "No routing key for request (" << request.getData() << ")" << std::endl;
- return;
- }
-
- std::cout << "Request: " << request.getData() << " (" <<routingKey << ")" << std::endl;
-
- // Transform message content to upper case
- std::string s = request.getData();
- std::transform (s.begin(), s.end(), s.begin(), toupper);
- response.setData(s);
-
- // Send it back to the user
- response.getDeliveryProperties().setRoutingKey(routingKey);
-
- // Asynchronous transfer sends messages as quickly as
- // possible without waiting for confirmation.
- asyncSession.messageTransfer(arg::content=response, arg::destination="amq.direct");
-}
-
-
-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 request queue for clients to use when making
- // requests.
- string request_queue = "request";
-
- // Use the name of the request queue as the routing key
- session.queueDeclare(arg::queue=request_queue);
- session.exchangeBind(arg::exchange="amq.direct", arg::queue=request_queue, arg::bindingKey=request_queue);
-
- // Create a listener and subscribe it to the request_queue
- std::cout << "Activating request queue listener for: " << request_queue << std::endl;
- SubscriptionManager subscriptions(session);
- Listener listener(subscriptions, session);
- subscriptions.subscribe(listener, request_queue);
- // Deliver messages until the subscription is cancelled
- // by Listener::received()
-
- std::cout << "Waiting for requests" << std::endl;
- subscriptions.run();
-
- //-----------------------------------------------------------------------------
-
- connection.close();
- return 0;
- } catch(const std::exception& error) {
- std::cout << error.what() << std::endl;
- }
- return 1;
-}
-
-