1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
*
* 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;
namespace qpid {
namespace tests {
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;
}
}} // namespace qpid::tests
using namespace qpid::tests;
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;
}
|
