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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
|
/*
*
* 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.server.protocol.v1_0;
import org.apache.qpid.amqp_1_0.transport.LinkEndpoint;
import org.apache.qpid.amqp_1_0.transport.ReceivingLinkEndpoint;
import org.apache.qpid.amqp_1_0.transport.SendingLinkEndpoint;
import org.apache.qpid.amqp_1_0.transport.SessionEventListener;
import org.apache.qpid.amqp_1_0.type.Binary;
import org.apache.qpid.amqp_1_0.type.LifetimePolicy;
import org.apache.qpid.amqp_1_0.type.Symbol;
import org.apache.qpid.amqp_1_0.type.messaging.*;
import org.apache.qpid.amqp_1_0.type.transaction.Coordinator;
import org.apache.qpid.amqp_1_0.type.transaction.TxnCapability;
import org.apache.qpid.amqp_1_0.type.transport.*;
import org.apache.qpid.amqp_1_0.type.transport.Error;
import org.apache.qpid.AMQException;
import org.apache.qpid.AMQSecurityException;
import org.apache.qpid.server.exchange.Exchange;
import org.apache.qpid.server.queue.AMQQueue;
import org.apache.qpid.server.queue.AMQQueueFactory;
import org.apache.qpid.server.registry.IApplicationRegistry;
import org.apache.qpid.server.txn.AutoCommitTransaction;
import org.apache.qpid.server.txn.ServerTransaction;
import org.apache.qpid.server.virtualhost.VirtualHost;
import java.util.*;
public class Session_1_0 implements SessionEventListener
{
private static final Symbol LIFETIME_POLICY = Symbol.valueOf("lifetime-policy");
private IApplicationRegistry _appRegistry;
private VirtualHost _vhost;
private AutoCommitTransaction _transaction;
private final LinkedHashMap<Integer, ServerTransaction> _openTransactions =
new LinkedHashMap<Integer, ServerTransaction>();
private final Connection_1_0 _connection;
public Session_1_0(VirtualHost vhost, IApplicationRegistry appRegistry, final Connection_1_0 connection)
{
_appRegistry = appRegistry;
_vhost = vhost;
_transaction = new AutoCommitTransaction(vhost.getMessageStore());
_connection = connection;
}
public void remoteLinkCreation(final LinkEndpoint endpoint)
{
Destination destination;
Link_1_0 link = null;
Error error = null;
final LinkRegistry linkRegistry = _vhost.getLinkRegistry(endpoint.getSession().getConnection().getRemoteContainerId());
if(endpoint.getRole() == Role.SENDER)
{
SendingLink_1_0 previousLink = linkRegistry.getDurableSendingLink(endpoint.getName());
if(previousLink == null)
{
Target target = (Target) endpoint.getTarget();
Source source = (Source) endpoint.getSource();
if(source != null)
{
if(Boolean.TRUE.equals(source.getDynamic()))
{
AMQQueue tempQueue = createTemporaryQueue(source.getDynamicNodeProperties());
source.setAddress(tempQueue.getName());
}
String addr = source.getAddress();
AMQQueue queue = _vhost.getQueueRegistry().getQueue(addr);
if(queue != null)
{
destination = new QueueDestination(queue);
}
else
{
endpoint.setSource(null);
destination = null;
}
}
else
{
destination = null;
}
if(destination != null)
{
final SendingLinkEndpoint sendingLinkEndpoint = (SendingLinkEndpoint) endpoint;
final SendingLink_1_0 sendingLink = new SendingLink_1_0(new SendingLinkAttachment(this, sendingLinkEndpoint),
_vhost,
(SendingDestination) destination
);
sendingLinkEndpoint.setLinkEventListener(sendingLink);
link = sendingLink;
if(TerminusDurability.UNSETTLED_STATE.equals(source.getDurable()))
{
linkRegistry.registerSendingLink(endpoint.getName(), sendingLink);
sendingLink.setCloseAction(new Runnable() {
public void run()
{
linkRegistry.unregisterSendingLink(endpoint.getName());
}
});
}
}
}
else
{
SendingLinkEndpoint sendingLinkEndpoint = (SendingLinkEndpoint) endpoint;
previousLink.setLinkAttachment(new SendingLinkAttachment(this, sendingLinkEndpoint));
sendingLinkEndpoint.setLinkEventListener(previousLink);
link = previousLink;
endpoint.setLocalUnsettled(previousLink.getUnsettledOutcomeMap());
}
}
else
{
if(endpoint.getTarget() instanceof Coordinator)
{
Coordinator coordinator = (Coordinator) endpoint.getTarget();
TxnCapability[] capabilities = coordinator.getCapabilities();
boolean localTxn = false;
boolean multiplePerSession = false;
if(capabilities != null)
{
for(TxnCapability capability : capabilities)
{
if(capability.equals(TxnCapability.LOCAL_TXN))
{
localTxn = true;
}
else if(capability.equals(TxnCapability.MULTI_TXNS_PER_SSN))
{
multiplePerSession = true;
}
else
{
error = new Error();
error.setCondition(AmqpError.NOT_IMPLEMENTED);
error.setDescription("Unsupported capability: " + capability);
break;
}
}
}
/* if(!localTxn)
{
capabilities.add(TxnCapabilities.LOCAL_TXN);
}*/
final ReceivingLinkEndpoint receivingLinkEndpoint = (ReceivingLinkEndpoint) endpoint;
final TxnCoordinatorLink_1_0 coordinatorLink =
new TxnCoordinatorLink_1_0(_vhost, this, receivingLinkEndpoint, _openTransactions);
receivingLinkEndpoint.setLinkEventListener(coordinatorLink);
link = coordinatorLink;
}
else
{
ReceivingLink_1_0 previousLink = linkRegistry.getDurableReceivingLink(endpoint.getName());
if(previousLink == null)
{
Target target = (Target) endpoint.getTarget();
if(target != null)
{
if(Boolean.TRUE.equals(target.getDynamic()))
{
AMQQueue tempQueue = createTemporaryQueue(target.getDynamicNodeProperties());
target.setAddress(tempQueue.getName());
}
String addr = target.getAddress();
Exchange exchg = _vhost.getExchangeRegistry().getExchange(addr);
if(exchg != null)
{
destination = new ExchangeDestination(exchg);
}
else
{
AMQQueue queue = _vhost.getQueueRegistry().getQueue(addr);
if(queue != null)
{
destination = new QueueDestination(queue);
}
else
{
endpoint.setTarget(null);
destination = null;
}
}
}
else
{
destination = null;
}
if(destination != null)
{
final ReceivingLinkEndpoint receivingLinkEndpoint = (ReceivingLinkEndpoint) endpoint;
final ReceivingLink_1_0 receivingLink = new ReceivingLink_1_0(new ReceivingLinkAttachment(this, receivingLinkEndpoint), _vhost,
(ReceivingDestination) destination);
receivingLinkEndpoint.setLinkEventListener(receivingLink);
link = receivingLink;
if(TerminusDurability.UNSETTLED_STATE.equals(target.getDurable()))
{
linkRegistry.registerReceivingLink(endpoint.getName(), receivingLink);
}
}
}
else
{
ReceivingLinkEndpoint receivingLinkEndpoint = (ReceivingLinkEndpoint) endpoint;
previousLink.setLinkAttachment(new ReceivingLinkAttachment(this, receivingLinkEndpoint));
receivingLinkEndpoint.setLinkEventListener(previousLink);
link = previousLink;
endpoint.setLocalUnsettled(previousLink.getUnsettledOutcomeMap());
}
}
}
endpoint.attach();
if(link == null)
{
endpoint.detach(error);
}
else
{
link.start();
}
}
private AMQQueue createTemporaryQueue(Map properties)
{
final String queueName = UUID.randomUUID().toString();
AMQQueue queue = null;
try
{
LifetimePolicy lifetimePolicy = properties == null
? null
: (LifetimePolicy) properties.get(LIFETIME_POLICY);
final AMQQueue tempQueue = queue = AMQQueueFactory.createAMQQueueImpl(queueName,
false, // durable
null, // owner
false, // autodelete
false, // exclusive
_vhost,
properties);
if (lifetimePolicy == null || lifetimePolicy instanceof DeleteOnClose)
{
final Connection_1_0.Task deleteQueueTask =
new Connection_1_0.Task()
{
public void doTask(Connection_1_0 session)
{
if (_vhost.getQueueRegistry().getQueue(queueName) == tempQueue)
{
try
{
tempQueue.delete();
}
catch (AMQException e)
{
e.printStackTrace(); //TODO.
}
}
}
};
_connection.addConnectionCloseTask(deleteQueueTask);
queue.addQueueDeleteTask(new AMQQueue.Task()
{
public void doTask(AMQQueue queue)
{
_connection.removeConnectionCloseTask(deleteQueueTask);
}
});
}
else if(lifetimePolicy instanceof DeleteOnNoLinks)
{
}
else if(lifetimePolicy instanceof DeleteOnNoMessages)
{
}
else if(lifetimePolicy instanceof DeleteOnNoLinksOrMessages)
{
}
}
catch (AMQSecurityException e)
{
e.printStackTrace(); //TODO.
}
return queue;
}
public ServerTransaction getTransaction(Binary transactionId)
{
// TODO should treat invalid id differently to null
ServerTransaction transaction = _openTransactions.get(binaryToInteger(transactionId));
return transaction == null ? _transaction : transaction;
}
public void remoteEnd(End end)
{
Iterator<Map.Entry<Integer, ServerTransaction>> iter = _openTransactions.entrySet().iterator();
while(iter.hasNext())
{
Map.Entry<Integer, ServerTransaction> entry = iter.next();
entry.getValue().rollback();
iter.remove();
}
}
Integer binaryToInteger(final Binary txnId)
{
if(txnId == null)
{
return null;
}
if(txnId.getLength() > 4)
throw new IllegalArgumentException();
int id = 0;
byte[] data = txnId.getArray();
for(int i = 0; i < txnId.getLength(); i++)
{
id <<= 8;
id += data[i+txnId.getArrayOffset()];
}
return id;
}
Binary integerToBinary(final int txnId)
{
byte[] data = new byte[4];
data[3] = (byte) (txnId & 0xff);
data[2] = (byte) ((txnId & 0xff00) >> 8);
data[1] = (byte) ((txnId & 0xff0000) >> 16);
data[0] = (byte) ((txnId & 0xff000000) >> 24);
return new Binary(data);
}
public void forceEnd()
{
}
}
|
