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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*
*
* 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.jca.example.client;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.InitialContext;
import org.apache.qpid.jca.example.ejb.QpidUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class QpidRequestResponseClient implements MessageListener, Runnable
{
private static final Logger _log = LoggerFactory.getLogger(QpidRequestResponseClient.class);
private static final String DEFAULT_CF_JNDI = "QpidConnectionFactory";
private static final String DEFAULT_DESTINATION_JNDI = "QpidRequestQueue";
private static final String DEFAULT_MESSAGE = "Hello, World!";
private static final int DEFAULT_MESSAGE_COUNT = 1;
private static final int DEFAULT_THREAD_COUNT = 1;
private static CountDownLatch THREAD_LATCH;
private static InitialContext CONTEXT;
private ConnectionFactory _connectionFactory;
private Connection _connection;
private Session _session;
private CountDownLatch _latch = null;
private int _count = DEFAULT_MESSAGE_COUNT;
/**
* @param args
*/
public static void main(String[] args) throws Exception
{
int threadCount = (System.getProperty("thread.count") == null)
? DEFAULT_THREAD_COUNT : Integer.valueOf(System.getProperty("thread.count"));
_log.debug("Creating " + threadCount + " threads for execution.");
THREAD_LATCH = new CountDownLatch(threadCount);
CONTEXT = new InitialContext();
for(int i = 0; i < threadCount; i++)
{
new Thread(new QpidRequestResponseClient()).start();
}
_log.debug("Waiting for " + threadCount + " to finish.");
THREAD_LATCH.await(10, TimeUnit.SECONDS);
QpidUtil.closeResources(CONTEXT);
}
@Override
public void onMessage(Message message)
{
_latch.countDown();
if(message instanceof TextMessage)
{
try
{
_log.debug("Thread " + Thread.currentThread().getId() + " received response message with content " + ((TextMessage)message).getText());
}
catch(Exception e)
{
_log.error(e.getMessage(), e);
}
}
if(_latch.getCount() == _count)
{
QpidUtil.closeResources(_session, _connection);
}
THREAD_LATCH.countDown();
}
public void run()
{
MessageProducer producer = null;
Destination requestQueue = null;
Destination responseQueue = null;
String cfName = (System.getProperty("qpid.cf.name") == null) ? DEFAULT_CF_JNDI : System.getProperty("qpid.cf.name");
String destName = (System.getProperty("qpid.dest.name") == null) ? DEFAULT_DESTINATION_JNDI : System.getProperty("qpid.dest.name");
try
{
_count = (System.getProperty("message.count") == null) ? DEFAULT_MESSAGE_COUNT : Integer.valueOf(System.getProperty("message.count"));
_latch = new CountDownLatch(_count);
_connectionFactory = (ConnectionFactory)QpidTestUtil.getFromJNDI(CONTEXT, cfName);
requestQueue = (Destination)QpidTestUtil.getFromJNDI(CONTEXT, destName);
_connection = _connectionFactory.createConnection();
_session = _connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
producer = _session.createProducer(requestQueue);
responseQueue = _session.createTemporaryQueue();
_session.createConsumer(responseQueue).setMessageListener(this);
_connection.start();
String content = (System.getProperty("qpid.message") == null) ? DEFAULT_MESSAGE : System.getProperty("qpid.message");
for(int i = 0; i < _count; i++)
{
TextMessage message = _session.createTextMessage();
message.setText(content);
message.setJMSReplyTo(responseQueue);
producer.send(message);
}
_latch.await();
}
catch(Exception e)
{
_log.error(e.getMessage(), e);
}
finally
{
QpidUtil.closeResources(producer);
}
}
}
|
