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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.
*
*/
/**
* This file provides a simple test (and example) of basic
* functionality including declaring an exchange and a queue, binding
* these together, publishing a message and receiving that message
* asynchronously.
*/
#include <iostream>
#include "TestOptions.h"
#include "qpid/client/Connection.h"
#include "qpid/client/Message.h"
#include "qpid/client/Session.h"
#include "qpid/client/SubscriptionManager.h"
using namespace qpid;
using namespace qpid::client;
using namespace qpid::framing;
using std::string;
struct Args : public TestOptions {
uint msgSize;
bool verbose;
Args() : TestOptions("Simple test of Qpid c++ client; sends and receives a single message."), msgSize(26)
{
addOptions()
("size", optValue(msgSize, "N"), "message size")
("verbose", optValue(verbose), "print out some status messages");
}
};
const std::string chars("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
std::string generateData(uint size)
{
if (size < chars.length()) {
return chars.substr(0, size);
}
std::string data;
for (uint i = 0; i < (size / chars.length()); i++) {
data += chars;
}
data += chars.substr(0, size % chars.length());
return data;
}
void print(const std::string& text, const Message& msg)
{
std::cout << text;
if (msg.getData().size() > 16) {
std::cout << msg.getData().substr(0, 16) << "...";
} else {
std::cout << msg.getData();
}
std::cout << std::endl;
}
int main(int argc, char** argv)
{
try {
Args opts;
opts.parse(argc, argv);
//Connect to the broker:
Connection connection;
opts.open(connection);
if (opts.verbose) std::cout << "Opened connection." << std::endl;
//Create and open a session on the connection through which
//most functionality is exposed:
Session session = connection.newSession();
if (opts.verbose) std::cout << "Opened session." << std::endl;
//'declare' the exchange and the queue, which will create them
//as they don't exist
session.exchangeDeclare(arg::exchange="MyExchange", arg::type="direct");
if (opts.verbose) std::cout << "Declared exchange." << std::endl;
session.queueDeclare(arg::queue="MyQueue", arg::autoDelete=true, arg::exclusive=true);
if (opts.verbose) std::cout << "Declared queue." << std::endl;
//now bind the queue to the exchange
session.exchangeBind(arg::exchange="MyExchange", arg::queue="MyQueue", arg::bindingKey="MyKey");
if (opts.verbose) std::cout << "Bound queue to exchange." << std::endl;
//create and send a message to the exchange using the routing
//key we bound our queue with:
Message msgOut(generateData(opts.msgSize));
msgOut.getDeliveryProperties().setRoutingKey("MyKey");
session.messageTransfer(arg::destination="MyExchange", arg::content=msgOut, arg::acceptMode=1);
if (opts.verbose) print("Published message: ", msgOut);
// Using the SubscriptionManager, get the message from the queue.
SubscriptionManager subs(session);
Message msgIn = subs.get("MyQueue");
if (msgIn.getData() == msgOut.getData())
if (opts.verbose) std::cout << "Received the exepected message." << std::endl;
//close the session & connection
session.close();
if (opts.verbose) std::cout << "Closed session." << std::endl;
connection.close();
if (opts.verbose) std::cout << "Closed connection." << std::endl;
return 0;
} catch(const std::exception& e) {
std::cout << e.what() << std::endl;
}
return 1;
}
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