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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
*
* 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.ra.inflow;
import java.util.ArrayList;
import java.util.List;
import javax.resource.ResourceException;
import javax.resource.spi.endpoint.MessageEndpointFactory;
import javax.resource.spi.work.Work;
import org.apache.qpid.ra.QpidResourceAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The activation.
*
*/
public class QpidActivation extends QpidExceptionHandler
{
private static final Logger _log = LoggerFactory.getLogger(QpidActivation.class);
private final List<QpidMessageHandler> _handlers = new ArrayList<QpidMessageHandler>();
/**
* Constructor
*
* @param ra The resource adapter
* @param endpointFactory The endpoint factory
* @param spec The activation spec
* @throws ResourceException Thrown if an error occurs
*/
public QpidActivation(final QpidResourceAdapter ra,
final MessageEndpointFactory endpointFactory,
final QpidActivationSpec spec) throws ResourceException
{
super(ra, spec, endpointFactory);
}
/**
* Start the activation
*
* @throws ResourceException Thrown if an error occurs
*/
public void start() throws ResourceException
{
if (_log.isTraceEnabled())
{
_log.trace("start()");
}
_deliveryActive.set(true);
new Thread(new SetupActivation()).start();
}
/**
* Stop the activation
*/
public void stop()
{
if (_log.isTraceEnabled())
{
_log.trace("stop()");
}
_deliveryActive.set(false);
teardown();
}
/**
* Setup the activation
*
* @throws Exception Thrown if an error occurs
*/
public synchronized void setup() throws Exception
{
_log.debug("Setting up " + _spec);
setupCF();
setupDestination();
if(!_spec.isUseConnectionPerHandler())
{
setupConnection();
_connection.setExceptionListener(this);
}
for (int i = 0; i < _spec.getMaxSession(); i++)
{
try
{
QpidMessageHandler handler = null;
if(_spec.isUseConnectionPerHandler())
{
handler = new QpidMessageHandler(_ra, _spec, _endpointFactory, _ra.getTM());
}
else
{
handler = new QpidMessageHandler(_ra, _spec, _endpointFactory, _ra.getTM(), _connection);
}
handler.start();
_handlers.add(handler);
}
catch(Exception e)
{
try
{
if(_connection != null)
{
this._connection.close();
}
}
catch (Exception e2)
{
_log.trace("Ignored error closing connection", e2);
}
throw e;
}
}
if(!_spec.isUseConnectionPerHandler())
{
this._connection.start();
_activated.set(true);
}
_log.debug("Setup complete " + this);
}
/**
* Teardown the activation
*/
protected synchronized void teardown()
{
_log.debug("Tearing down " + _spec);
super.teardown();
for (QpidMessageHandler handler : _handlers)
{
handler.stop();
}
_log.debug("Tearing down complete " + this);
}
/**
* Get a string representation
*
* @return The value
*/
@Override
public String toString()
{
StringBuffer buffer = new StringBuffer();
buffer.append(QpidActivation.class.getName()).append('(');
buffer.append("spec=").append(_spec.getClass().getName());
buffer.append(" mepf=").append(_endpointFactory.getClass().getName());
buffer.append(" active=").append(_deliveryActive.get());
if (_spec.getDestination() != null)
{
buffer.append(" destination=").append(_spec.getDestination());
}
buffer.append(" transacted=").append(_isDeliveryTransacted);
buffer.append(')');
return buffer.toString();
}
/**
* Handles the setup
*/
private class SetupActivation implements Work
{
public void run()
{
try
{
setup();
}
catch (Throwable t)
{
handleFailure(t);
}
}
public void release()
{
}
}
}
|
