001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.activemq.broker;
018
019 import java.io.IOException;
020 import java.net.URI;
021 import java.util.HashMap;
022 import java.util.Iterator;
023 import java.util.LinkedList;
024 import java.util.List;
025 import java.util.Map;
026 import java.util.Properties;
027 import java.util.concurrent.ConcurrentHashMap;
028 import java.util.concurrent.CopyOnWriteArrayList;
029 import java.util.concurrent.CountDownLatch;
030 import java.util.concurrent.TimeUnit;
031 import java.util.concurrent.atomic.AtomicBoolean;
032 import java.util.concurrent.atomic.AtomicInteger;
033 import java.util.concurrent.atomic.AtomicReference;
034 import java.util.concurrent.locks.ReentrantReadWriteLock;
035
036 import javax.management.ObjectName;
037 import javax.transaction.xa.XAResource;
038
039 import org.apache.activemq.broker.ft.MasterBroker;
040 import org.apache.activemq.broker.region.ConnectionStatistics;
041 import org.apache.activemq.broker.region.RegionBroker;
042 import org.apache.activemq.command.BrokerId;
043 import org.apache.activemq.command.BrokerInfo;
044 import org.apache.activemq.command.Command;
045 import org.apache.activemq.command.CommandTypes;
046 import org.apache.activemq.command.ConnectionControl;
047 import org.apache.activemq.command.ConnectionError;
048 import org.apache.activemq.command.ConnectionId;
049 import org.apache.activemq.command.ConnectionInfo;
050 import org.apache.activemq.command.ConsumerControl;
051 import org.apache.activemq.command.ConsumerId;
052 import org.apache.activemq.command.ConsumerInfo;
053 import org.apache.activemq.command.ControlCommand;
054 import org.apache.activemq.command.DataArrayResponse;
055 import org.apache.activemq.command.DestinationInfo;
056 import org.apache.activemq.command.ExceptionResponse;
057 import org.apache.activemq.command.FlushCommand;
058 import org.apache.activemq.command.IntegerResponse;
059 import org.apache.activemq.command.KeepAliveInfo;
060 import org.apache.activemq.command.Message;
061 import org.apache.activemq.command.MessageAck;
062 import org.apache.activemq.command.MessageDispatch;
063 import org.apache.activemq.command.MessageDispatchNotification;
064 import org.apache.activemq.command.MessagePull;
065 import org.apache.activemq.command.ProducerAck;
066 import org.apache.activemq.command.ProducerId;
067 import org.apache.activemq.command.ProducerInfo;
068 import org.apache.activemq.command.RemoveSubscriptionInfo;
069 import org.apache.activemq.command.Response;
070 import org.apache.activemq.command.SessionId;
071 import org.apache.activemq.command.SessionInfo;
072 import org.apache.activemq.command.ShutdownInfo;
073 import org.apache.activemq.command.TransactionId;
074 import org.apache.activemq.command.TransactionInfo;
075 import org.apache.activemq.command.WireFormatInfo;
076 import org.apache.activemq.network.*;
077 import org.apache.activemq.security.MessageAuthorizationPolicy;
078 import org.apache.activemq.state.CommandVisitor;
079 import org.apache.activemq.state.ConnectionState;
080 import org.apache.activemq.state.ConsumerState;
081 import org.apache.activemq.state.ProducerState;
082 import org.apache.activemq.state.SessionState;
083 import org.apache.activemq.state.TransactionState;
084 import org.apache.activemq.thread.DefaultThreadPools;
085 import org.apache.activemq.thread.Task;
086 import org.apache.activemq.thread.TaskRunner;
087 import org.apache.activemq.thread.TaskRunnerFactory;
088 import org.apache.activemq.transaction.Transaction;
089 import org.apache.activemq.transport.DefaultTransportListener;
090 import org.apache.activemq.transport.ResponseCorrelator;
091 import org.apache.activemq.transport.Transport;
092 import org.apache.activemq.transport.TransportDisposedIOException;
093 import org.apache.activemq.transport.TransportFactory;
094 import org.apache.activemq.util.*;
095 import org.slf4j.Logger;
096 import org.slf4j.LoggerFactory;
097 import org.slf4j.MDC;
098
099 public class TransportConnection implements Connection, Task, CommandVisitor {
100 private static final Logger LOG = LoggerFactory.getLogger(TransportConnection.class);
101 private static final Logger TRANSPORTLOG = LoggerFactory.getLogger(TransportConnection.class.getName() + ".Transport");
102 private static final Logger SERVICELOG = LoggerFactory.getLogger(TransportConnection.class.getName() + ".Service");
103 // Keeps track of the broker and connector that created this connection.
104 protected final Broker broker;
105 protected final TransportConnector connector;
106 // Keeps track of the state of the connections.
107 // protected final ConcurrentHashMap localConnectionStates=new
108 // ConcurrentHashMap();
109 protected final Map<ConnectionId, ConnectionState> brokerConnectionStates;
110 // The broker and wireformat info that was exchanged.
111 protected BrokerInfo brokerInfo;
112 protected final List<Command> dispatchQueue = new LinkedList<Command>();
113 protected TaskRunner taskRunner;
114 protected final AtomicReference<IOException> transportException = new AtomicReference<IOException>();
115 protected AtomicBoolean dispatchStopped = new AtomicBoolean(false);
116 private MasterBroker masterBroker;
117 private final Transport transport;
118 private MessageAuthorizationPolicy messageAuthorizationPolicy;
119 private WireFormatInfo wireFormatInfo;
120 // Used to do async dispatch.. this should perhaps be pushed down into the
121 // transport layer..
122 private boolean inServiceException;
123 private final ConnectionStatistics statistics = new ConnectionStatistics();
124 private boolean manageable;
125 private boolean slow;
126 private boolean markedCandidate;
127 private boolean blockedCandidate;
128 private boolean blocked;
129 private boolean connected;
130 private boolean active;
131 private boolean starting;
132 private boolean pendingStop;
133 private long timeStamp;
134 private final AtomicBoolean stopping = new AtomicBoolean(false);
135 private final CountDownLatch stopped = new CountDownLatch(1);
136 private final AtomicBoolean asyncException = new AtomicBoolean(false);
137 private final Map<ProducerId, ProducerBrokerExchange> producerExchanges = new HashMap<ProducerId, ProducerBrokerExchange>();
138 private final Map<ConsumerId, ConsumerBrokerExchange> consumerExchanges = new HashMap<ConsumerId, ConsumerBrokerExchange>();
139 private final CountDownLatch dispatchStoppedLatch = new CountDownLatch(1);
140 private ConnectionContext context;
141 private boolean networkConnection;
142 private boolean faultTolerantConnection;
143 private final AtomicInteger protocolVersion = new AtomicInteger(CommandTypes.PROTOCOL_VERSION);
144 private DemandForwardingBridge duplexBridge;
145 private final TaskRunnerFactory taskRunnerFactory;
146 private TransportConnectionStateRegister connectionStateRegister = new SingleTransportConnectionStateRegister();
147 private final ReentrantReadWriteLock serviceLock = new ReentrantReadWriteLock();
148 private String duplexNetworkConnectorId;
149
150 /**
151 * @param connector
152 * @param transport
153 * @param broker
154 * @param taskRunnerFactory
155 * - can be null if you want direct dispatch to the transport
156 * else commands are sent async.
157 */
158 public TransportConnection(TransportConnector connector, final Transport transport, Broker broker,
159 TaskRunnerFactory taskRunnerFactory) {
160 this.connector = connector;
161 this.broker = broker;
162 this.messageAuthorizationPolicy = connector.getMessageAuthorizationPolicy();
163 RegionBroker rb = (RegionBroker) broker.getAdaptor(RegionBroker.class);
164 brokerConnectionStates = rb.getConnectionStates();
165 if (connector != null) {
166 this.statistics.setParent(connector.getStatistics());
167 }
168 this.taskRunnerFactory = taskRunnerFactory;
169 this.transport = transport;
170 this.transport.setTransportListener(new DefaultTransportListener() {
171 @Override
172 public void onCommand(Object o) {
173 serviceLock.readLock().lock();
174 try {
175 if (!(o instanceof Command)) {
176 throw new RuntimeException("Protocol violation - Command corrupted: " + o.toString());
177 }
178 Command command = (Command) o;
179 Response response = service(command);
180 if (response != null) {
181 dispatchSync(response);
182 }
183 } finally {
184 serviceLock.readLock().unlock();
185 }
186 }
187
188 @Override
189 public void onException(IOException exception) {
190 serviceLock.readLock().lock();
191 try {
192 serviceTransportException(exception);
193 } finally {
194 serviceLock.readLock().unlock();
195 }
196 }
197 });
198 connected = true;
199 }
200
201 /**
202 * Returns the number of messages to be dispatched to this connection
203 *
204 * @return size of dispatch queue
205 */
206 public int getDispatchQueueSize() {
207 synchronized (dispatchQueue) {
208 return dispatchQueue.size();
209 }
210 }
211
212 public void serviceTransportException(IOException e) {
213 BrokerService bService = connector.getBrokerService();
214 if (bService.isShutdownOnSlaveFailure()) {
215 if (brokerInfo != null) {
216 if (brokerInfo.isSlaveBroker()) {
217 LOG.error("Slave has exception: " + e.getMessage() + " shutting down master now.", e);
218 try {
219 doStop();
220 bService.stop();
221 } catch (Exception ex) {
222 LOG.warn("Failed to stop the master", ex);
223 }
224 }
225 }
226 }
227 if (!stopping.get()) {
228 transportException.set(e);
229 if (TRANSPORTLOG.isDebugEnabled()) {
230 TRANSPORTLOG.debug("Transport failed: " + e, e);
231 } else if (TRANSPORTLOG.isInfoEnabled()) {
232 TRANSPORTLOG.info("Transport failed: " + e);
233 }
234 stopAsync();
235 }
236 }
237
238 /**
239 * Calls the serviceException method in an async thread. Since handling a
240 * service exception closes a socket, we should not tie up broker threads
241 * since client sockets may hang or cause deadlocks.
242 *
243 * @param e
244 */
245 public void serviceExceptionAsync(final IOException e) {
246 if (asyncException.compareAndSet(false, true)) {
247 new Thread("Async Exception Handler") {
248 @Override
249 public void run() {
250 serviceException(e);
251 }
252 }.start();
253 }
254 }
255
256 /**
257 * Closes a clients connection due to a detected error. Errors are ignored
258 * if: the client is closing or broker is closing. Otherwise, the connection
259 * error transmitted to the client before stopping it's transport.
260 */
261 public void serviceException(Throwable e) {
262 // are we a transport exception such as not being able to dispatch
263 // synchronously to a transport
264 if (e instanceof IOException) {
265 serviceTransportException((IOException) e);
266 } else if (e.getClass() == BrokerStoppedException.class) {
267 // Handle the case where the broker is stopped
268 // But the client is still connected.
269 if (!stopping.get()) {
270 if (SERVICELOG.isDebugEnabled()) {
271 SERVICELOG.debug("Broker has been stopped. Notifying client and closing his connection.");
272 }
273 ConnectionError ce = new ConnectionError();
274 ce.setException(e);
275 dispatchSync(ce);
276 // Wait a little bit to try to get the output buffer to flush
277 // the exption notification to the client.
278 try {
279 Thread.sleep(500);
280 } catch (InterruptedException ie) {
281 Thread.currentThread().interrupt();
282 }
283 // Worst case is we just kill the connection before the
284 // notification gets to him.
285 stopAsync();
286 }
287 } else if (!stopping.get() && !inServiceException) {
288 inServiceException = true;
289 try {
290 SERVICELOG.warn("Async error occurred: " + e, e);
291 ConnectionError ce = new ConnectionError();
292 ce.setException(e);
293 dispatchAsync(ce);
294 } finally {
295 inServiceException = false;
296 }
297 }
298 }
299
300 public Response service(Command command) {
301 MDC.put("activemq.connector", connector.getUri().toString());
302 Response response = null;
303 boolean responseRequired = command.isResponseRequired();
304 int commandId = command.getCommandId();
305 try {
306 response = command.visit(this);
307 } catch (Throwable e) {
308 if (SERVICELOG.isDebugEnabled() && e.getClass() != BrokerStoppedException.class) {
309 SERVICELOG.debug("Error occured while processing " + (responseRequired ? "sync" : "async")
310 + " command: " + command + ", exception: " + e, e);
311 }
312 if (responseRequired) {
313 response = new ExceptionResponse(e);
314 } else {
315 serviceException(e);
316 }
317 }
318 if (responseRequired) {
319 if (response == null) {
320 response = new Response();
321 }
322 response.setCorrelationId(commandId);
323 }
324 // The context may have been flagged so that the response is not
325 // sent.
326 if (context != null) {
327 if (context.isDontSendReponse()) {
328 context.setDontSendReponse(false);
329 response = null;
330 }
331 context = null;
332 }
333 MDC.remove("activemq.connector");
334 return response;
335 }
336
337 public Response processKeepAlive(KeepAliveInfo info) throws Exception {
338 return null;
339 }
340
341 public Response processRemoveSubscription(RemoveSubscriptionInfo info) throws Exception {
342 broker.removeSubscription(lookupConnectionState(info.getConnectionId()).getContext(), info);
343 return null;
344 }
345
346 public Response processWireFormat(WireFormatInfo info) throws Exception {
347 wireFormatInfo = info;
348 protocolVersion.set(info.getVersion());
349 return null;
350 }
351
352 public Response processShutdown(ShutdownInfo info) throws Exception {
353 stopAsync();
354 return null;
355 }
356
357 public Response processFlush(FlushCommand command) throws Exception {
358 return null;
359 }
360
361 public Response processBeginTransaction(TransactionInfo info) throws Exception {
362 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
363 context = null;
364 if (cs != null) {
365 context = cs.getContext();
366 }
367 if (cs == null) {
368 throw new NullPointerException("Context is null");
369 }
370 // Avoid replaying dup commands
371 if (cs.getTransactionState(info.getTransactionId()) == null) {
372 cs.addTransactionState(info.getTransactionId());
373 broker.beginTransaction(context, info.getTransactionId());
374 }
375 return null;
376 }
377
378 public Response processEndTransaction(TransactionInfo info) throws Exception {
379 // No need to do anything. This packet is just sent by the client
380 // make sure he is synced with the server as commit command could
381 // come from a different connection.
382 return null;
383 }
384
385 public Response processPrepareTransaction(TransactionInfo info) throws Exception {
386 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
387 context = null;
388 if (cs != null) {
389 context = cs.getContext();
390 }
391 if (cs == null) {
392 throw new NullPointerException("Context is null");
393 }
394 TransactionState transactionState = cs.getTransactionState(info.getTransactionId());
395 if (transactionState == null) {
396 throw new IllegalStateException("Cannot prepare a transaction that had not been started or previously returned XA_RDONLY: "
397 + info.getTransactionId());
398 }
399 // Avoid dups.
400 if (!transactionState.isPrepared()) {
401 transactionState.setPrepared(true);
402 int result = broker.prepareTransaction(context, info.getTransactionId());
403 transactionState.setPreparedResult(result);
404 if (result == XAResource.XA_RDONLY) {
405 // we are done, no further rollback or commit from TM
406 cs.removeTransactionState(info.getTransactionId());
407 }
408 IntegerResponse response = new IntegerResponse(result);
409 return response;
410 } else {
411 IntegerResponse response = new IntegerResponse(transactionState.getPreparedResult());
412 return response;
413 }
414 }
415
416 public Response processCommitTransactionOnePhase(TransactionInfo info) throws Exception {
417 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
418 context = cs.getContext();
419 cs.removeTransactionState(info.getTransactionId());
420 broker.commitTransaction(context, info.getTransactionId(), true);
421 return null;
422 }
423
424 public Response processCommitTransactionTwoPhase(TransactionInfo info) throws Exception {
425 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
426 context = cs.getContext();
427 cs.removeTransactionState(info.getTransactionId());
428 broker.commitTransaction(context, info.getTransactionId(), false);
429 return null;
430 }
431
432 public Response processRollbackTransaction(TransactionInfo info) throws Exception {
433 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
434 context = cs.getContext();
435 cs.removeTransactionState(info.getTransactionId());
436 broker.rollbackTransaction(context, info.getTransactionId());
437 return null;
438 }
439
440 public Response processForgetTransaction(TransactionInfo info) throws Exception {
441 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
442 context = cs.getContext();
443 broker.forgetTransaction(context, info.getTransactionId());
444 return null;
445 }
446
447 public Response processRecoverTransactions(TransactionInfo info) throws Exception {
448 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
449 context = cs.getContext();
450 TransactionId[] preparedTransactions = broker.getPreparedTransactions(context);
451 return new DataArrayResponse(preparedTransactions);
452 }
453
454 public Response processMessage(Message messageSend) throws Exception {
455 ProducerId producerId = messageSend.getProducerId();
456 ProducerBrokerExchange producerExchange = getProducerBrokerExchange(producerId);
457 if (producerExchange.canDispatch(messageSend)) {
458 broker.send(producerExchange, messageSend);
459 }
460 return null;
461 }
462
463 public Response processMessageAck(MessageAck ack) throws Exception {
464 ConsumerBrokerExchange consumerExchange = getConsumerBrokerExchange(ack.getConsumerId());
465 broker.acknowledge(consumerExchange, ack);
466 return null;
467 }
468
469 public Response processMessagePull(MessagePull pull) throws Exception {
470 return broker.messagePull(lookupConnectionState(pull.getConsumerId()).getContext(), pull);
471 }
472
473 public Response processMessageDispatchNotification(MessageDispatchNotification notification) throws Exception {
474 broker.processDispatchNotification(notification);
475 return null;
476 }
477
478 public Response processAddDestination(DestinationInfo info) throws Exception {
479 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
480 broker.addDestinationInfo(cs.getContext(), info);
481 if (info.getDestination().isTemporary()) {
482 cs.addTempDestination(info);
483 }
484 return null;
485 }
486
487 public Response processRemoveDestination(DestinationInfo info) throws Exception {
488 TransportConnectionState cs = lookupConnectionState(info.getConnectionId());
489 broker.removeDestinationInfo(cs.getContext(), info);
490 if (info.getDestination().isTemporary()) {
491 cs.removeTempDestination(info.getDestination());
492 }
493 return null;
494 }
495
496 public Response processAddProducer(ProducerInfo info) throws Exception {
497 SessionId sessionId = info.getProducerId().getParentId();
498 ConnectionId connectionId = sessionId.getParentId();
499 TransportConnectionState cs = lookupConnectionState(connectionId);
500 SessionState ss = cs.getSessionState(sessionId);
501 if (ss == null) {
502 throw new IllegalStateException("Cannot add a producer to a session that had not been registered: "
503 + sessionId);
504 }
505 // Avoid replaying dup commands
506 if (!ss.getProducerIds().contains(info.getProducerId())) {
507 broker.addProducer(cs.getContext(), info);
508 try {
509 ss.addProducer(info);
510 } catch (IllegalStateException e) {
511 broker.removeProducer(cs.getContext(), info);
512 }
513 }
514 return null;
515 }
516
517 public Response processRemoveProducer(ProducerId id) throws Exception {
518 SessionId sessionId = id.getParentId();
519 ConnectionId connectionId = sessionId.getParentId();
520 TransportConnectionState cs = lookupConnectionState(connectionId);
521 SessionState ss = cs.getSessionState(sessionId);
522 if (ss == null) {
523 throw new IllegalStateException("Cannot remove a producer from a session that had not been registered: "
524 + sessionId);
525 }
526 ProducerState ps = ss.removeProducer(id);
527 if (ps == null) {
528 throw new IllegalStateException("Cannot remove a producer that had not been registered: " + id);
529 }
530 removeProducerBrokerExchange(id);
531 broker.removeProducer(cs.getContext(), ps.getInfo());
532 return null;
533 }
534
535 public Response processAddConsumer(ConsumerInfo info) throws Exception {
536 SessionId sessionId = info.getConsumerId().getParentId();
537 ConnectionId connectionId = sessionId.getParentId();
538 TransportConnectionState cs = lookupConnectionState(connectionId);
539 SessionState ss = cs.getSessionState(sessionId);
540 if (ss == null) {
541 throw new IllegalStateException(broker.getBrokerName()
542 + " Cannot add a consumer to a session that had not been registered: " + sessionId);
543 }
544 // Avoid replaying dup commands
545 if (!ss.getConsumerIds().contains(info.getConsumerId())) {
546 broker.addConsumer(cs.getContext(), info);
547 try {
548 ss.addConsumer(info);
549 } catch (IllegalStateException e) {
550 broker.removeConsumer(cs.getContext(), info);
551 }
552 }
553 return null;
554 }
555
556 public Response processRemoveConsumer(ConsumerId id, long lastDeliveredSequenceId) throws Exception {
557 SessionId sessionId = id.getParentId();
558 ConnectionId connectionId = sessionId.getParentId();
559 TransportConnectionState cs = lookupConnectionState(connectionId);
560 if (cs == null) {
561 throw new IllegalStateException("Cannot remove a consumer from a connection that had not been registered: "
562 + connectionId);
563 }
564 SessionState ss = cs.getSessionState(sessionId);
565 if (ss == null) {
566 throw new IllegalStateException("Cannot remove a consumer from a session that had not been registered: "
567 + sessionId);
568 }
569 ConsumerState consumerState = ss.removeConsumer(id);
570 if (consumerState == null) {
571 throw new IllegalStateException("Cannot remove a consumer that had not been registered: " + id);
572 }
573 ConsumerInfo info = consumerState.getInfo();
574 info.setLastDeliveredSequenceId(lastDeliveredSequenceId);
575 broker.removeConsumer(cs.getContext(), consumerState.getInfo());
576 removeConsumerBrokerExchange(id);
577 return null;
578 }
579
580 public Response processAddSession(SessionInfo info) throws Exception {
581 ConnectionId connectionId = info.getSessionId().getParentId();
582 TransportConnectionState cs = lookupConnectionState(connectionId);
583 // Avoid replaying dup commands
584 if (cs != null && !cs.getSessionIds().contains(info.getSessionId())) {
585 broker.addSession(cs.getContext(), info);
586 try {
587 cs.addSession(info);
588 } catch (IllegalStateException e) {
589 e.printStackTrace();
590 broker.removeSession(cs.getContext(), info);
591 }
592 }
593 return null;
594 }
595
596 public Response processRemoveSession(SessionId id, long lastDeliveredSequenceId) throws Exception {
597 ConnectionId connectionId = id.getParentId();
598 TransportConnectionState cs = lookupConnectionState(connectionId);
599 if (cs == null) {
600 throw new IllegalStateException("Cannot remove session from connection that had not been registered: " + connectionId);
601 }
602 SessionState session = cs.getSessionState(id);
603 if (session == null) {
604 throw new IllegalStateException("Cannot remove session that had not been registered: " + id);
605 }
606 // Don't let new consumers or producers get added while we are closing
607 // this down.
608 session.shutdown();
609 // Cascade the connection stop to the consumers and producers.
610 for (Iterator iter = session.getConsumerIds().iterator(); iter.hasNext();) {
611 ConsumerId consumerId = (ConsumerId) iter.next();
612 try {
613 processRemoveConsumer(consumerId, lastDeliveredSequenceId);
614 } catch (Throwable e) {
615 LOG.warn("Failed to remove consumer: " + consumerId + ". Reason: " + e, e);
616 }
617 }
618 for (Iterator iter = session.getProducerIds().iterator(); iter.hasNext();) {
619 ProducerId producerId = (ProducerId) iter.next();
620 try {
621 processRemoveProducer(producerId);
622 } catch (Throwable e) {
623 LOG.warn("Failed to remove producer: " + producerId + ". Reason: " + e, e);
624 }
625 }
626 cs.removeSession(id);
627 broker.removeSession(cs.getContext(), session.getInfo());
628 return null;
629 }
630
631 public Response processAddConnection(ConnectionInfo info) throws Exception {
632 // if the broker service has slave attached, wait for the slave to be
633 // attached to allow client connection. slave connection is fine
634 if (!info.isBrokerMasterConnector() && connector.getBrokerService().isWaitForSlave()
635 && connector.getBrokerService().getSlaveStartSignal().getCount() == 1) {
636 ServiceSupport.dispose(transport);
637 return new ExceptionResponse(new Exception("Master's slave not attached yet."));
638 }
639 // Older clients should have been defaulting this field to true.. but
640 // they were not.
641 if (wireFormatInfo != null && wireFormatInfo.getVersion() <= 2) {
642 info.setClientMaster(true);
643 }
644 TransportConnectionState state;
645 // Make sure 2 concurrent connections by the same ID only generate 1
646 // TransportConnectionState object.
647 synchronized (brokerConnectionStates) {
648 state = (TransportConnectionState) brokerConnectionStates.get(info.getConnectionId());
649 if (state == null) {
650 state = new TransportConnectionState(info, this);
651 brokerConnectionStates.put(info.getConnectionId(), state);
652 }
653 state.incrementReference();
654 }
655 // If there are 2 concurrent connections for the same connection id,
656 // then last one in wins, we need to sync here
657 // to figure out the winner.
658 synchronized (state.getConnectionMutex()) {
659 if (state.getConnection() != this) {
660 LOG.debug("Killing previous stale connection: " + state.getConnection().getRemoteAddress());
661 state.getConnection().stop();
662 LOG.debug("Connection " + getRemoteAddress() + " taking over previous connection: "
663 + state.getConnection().getRemoteAddress());
664 state.setConnection(this);
665 state.reset(info);
666 }
667 }
668 registerConnectionState(info.getConnectionId(), state);
669 LOG.debug("Setting up new connection id: " + info.getConnectionId() + ", address: " + getRemoteAddress());
670 this.faultTolerantConnection=info.isFaultTolerant();
671 // Setup the context.
672 String clientId = info.getClientId();
673 context = new ConnectionContext();
674 context.setBroker(broker);
675 context.setClientId(clientId);
676 context.setClientMaster(info.isClientMaster());
677 context.setConnection(this);
678 context.setConnectionId(info.getConnectionId());
679 context.setConnector(connector);
680 context.setMessageAuthorizationPolicy(getMessageAuthorizationPolicy());
681 context.setNetworkConnection(networkConnection);
682 context.setFaultTolerant(faultTolerantConnection);
683 context.setTransactions(new ConcurrentHashMap<TransactionId, Transaction>());
684 context.setUserName(info.getUserName());
685 context.setWireFormatInfo(wireFormatInfo);
686 context.setReconnect(info.isFailoverReconnect());
687 this.manageable = info.isManageable();
688 state.setContext(context);
689 state.setConnection(this);
690
691 try {
692 broker.addConnection(context, info);
693 } catch (Exception e) {
694 synchronized (brokerConnectionStates) {
695 brokerConnectionStates.remove(info.getConnectionId());
696 }
697 unregisterConnectionState(info.getConnectionId());
698 LOG.warn("Failed to add Connection " + info.getConnectionId() + ", reason: " + e.toString());
699 if (LOG.isDebugEnabled()) {
700 LOG.debug("Exception detail:", e);
701 }
702 throw e;
703 }
704 if (info.isManageable()) {
705 // send ConnectionCommand
706 ConnectionControl command = this.connector.getConnectionControl();
707 command.setFaultTolerant(broker.isFaultTolerantConfiguration());
708 dispatchAsync(command);
709 }
710 return null;
711 }
712
713 public synchronized Response processRemoveConnection(ConnectionId id, long lastDeliveredSequenceId)
714 throws InterruptedException {
715 LOG.debug("remove connection id: " + id);
716 TransportConnectionState cs = lookupConnectionState(id);
717 if (cs != null) {
718 // Don't allow things to be added to the connection state while we
719 // are
720 // shutting down.
721 cs.shutdown();
722 // Cascade the connection stop to the sessions.
723 for (Iterator iter = cs.getSessionIds().iterator(); iter.hasNext();) {
724 SessionId sessionId = (SessionId) iter.next();
725 try {
726 processRemoveSession(sessionId, lastDeliveredSequenceId);
727 } catch (Throwable e) {
728 SERVICELOG.warn("Failed to remove session " + sessionId, e);
729 }
730 }
731 // Cascade the connection stop to temp destinations.
732 for (Iterator iter = cs.getTempDestinations().iterator(); iter.hasNext();) {
733 DestinationInfo di = (DestinationInfo) iter.next();
734 try {
735 broker.removeDestination(cs.getContext(), di.getDestination(), 0);
736 } catch (Throwable e) {
737 SERVICELOG.warn("Failed to remove tmp destination " + di.getDestination(), e);
738 }
739 iter.remove();
740 }
741 try {
742 broker.removeConnection(cs.getContext(), cs.getInfo(), null);
743 } catch (Throwable e) {
744 SERVICELOG.warn("Failed to remove connection " + cs.getInfo() + ", reason: " + e.toString());
745 if (LOG.isDebugEnabled()) {
746 SERVICELOG.debug("Exception detail:", e);
747 }
748 }
749 TransportConnectionState state = unregisterConnectionState(id);
750 if (state != null) {
751 synchronized (brokerConnectionStates) {
752 // If we are the last reference, we should remove the state
753 // from the broker.
754 if (state.decrementReference() == 0) {
755 brokerConnectionStates.remove(id);
756 }
757 }
758 }
759 }
760 return null;
761 }
762
763 public Response processProducerAck(ProducerAck ack) throws Exception {
764 // A broker should not get ProducerAck messages.
765 return null;
766 }
767
768 public Connector getConnector() {
769 return connector;
770 }
771
772 public void dispatchSync(Command message) {
773 // getStatistics().getEnqueues().increment();
774 try {
775 processDispatch(message);
776 } catch (IOException e) {
777 serviceExceptionAsync(e);
778 }
779 }
780
781 public void dispatchAsync(Command message) {
782 if (!stopping.get()) {
783 // getStatistics().getEnqueues().increment();
784 if (taskRunner == null) {
785 dispatchSync(message);
786 } else {
787 synchronized (dispatchQueue) {
788 dispatchQueue.add(message);
789 }
790 try {
791 taskRunner.wakeup();
792 } catch (InterruptedException e) {
793 Thread.currentThread().interrupt();
794 }
795 }
796 } else {
797 if (message.isMessageDispatch()) {
798 MessageDispatch md = (MessageDispatch) message;
799 Runnable sub = md.getTransmitCallback();
800 broker.postProcessDispatch(md);
801 if (sub != null) {
802 sub.run();
803 }
804 }
805 }
806 }
807
808 protected void processDispatch(Command command) throws IOException {
809 final MessageDispatch messageDispatch = (MessageDispatch) (command.isMessageDispatch() ? command : null);
810 try {
811 if (!stopping.get()) {
812 if (messageDispatch != null) {
813 broker.preProcessDispatch(messageDispatch);
814 }
815 dispatch(command);
816 }
817 } finally {
818 if (messageDispatch != null) {
819 Runnable sub = messageDispatch.getTransmitCallback();
820 broker.postProcessDispatch(messageDispatch);
821 if (sub != null) {
822 sub.run();
823 }
824 }
825 // getStatistics().getDequeues().increment();
826 }
827 }
828
829 public boolean iterate() {
830 try {
831 if (stopping.get()) {
832 if (dispatchStopped.compareAndSet(false, true)) {
833 if (transportException.get() == null) {
834 try {
835 dispatch(new ShutdownInfo());
836 } catch (Throwable ignore) {
837 }
838 }
839 dispatchStoppedLatch.countDown();
840 }
841 return false;
842 }
843 if (!dispatchStopped.get()) {
844 Command command = null;
845 synchronized (dispatchQueue) {
846 if (dispatchQueue.isEmpty()) {
847 return false;
848 }
849 command = dispatchQueue.remove(0);
850 }
851 processDispatch(command);
852 return true;
853 }
854 return false;
855 } catch (IOException e) {
856 if (dispatchStopped.compareAndSet(false, true)) {
857 dispatchStoppedLatch.countDown();
858 }
859 serviceExceptionAsync(e);
860 return false;
861 }
862 }
863
864 /**
865 * Returns the statistics for this connection
866 */
867 public ConnectionStatistics getStatistics() {
868 return statistics;
869 }
870
871 public MessageAuthorizationPolicy getMessageAuthorizationPolicy() {
872 return messageAuthorizationPolicy;
873 }
874
875 public void setMessageAuthorizationPolicy(MessageAuthorizationPolicy messageAuthorizationPolicy) {
876 this.messageAuthorizationPolicy = messageAuthorizationPolicy;
877 }
878
879 public boolean isManageable() {
880 return manageable;
881 }
882
883 public void start() throws Exception {
884 starting = true;
885 try {
886 synchronized (this) {
887 if (taskRunnerFactory != null) {
888 taskRunner = taskRunnerFactory.createTaskRunner(this, "ActiveMQ Connection Dispatcher: "
889 + getRemoteAddress());
890 } else {
891 taskRunner = null;
892 }
893 transport.start();
894 active = true;
895 BrokerInfo info = connector.getBrokerInfo().copy();
896 if (connector.isUpdateClusterClients()) {
897 info.setPeerBrokerInfos(this.broker.getPeerBrokerInfos());
898 } else {
899 info.setPeerBrokerInfos(null);
900 }
901 dispatchAsync(info);
902
903 connector.onStarted(this);
904 }
905 } catch (Exception e) {
906 // Force clean up on an error starting up.
907 stop();
908 throw e;
909 } finally {
910 // stop() can be called from within the above block,
911 // but we want to be sure start() completes before
912 // stop() runs, so queue the stop until right now:
913 starting = false;
914 if (pendingStop) {
915 LOG.debug("Calling the delayed stop()");
916 stop();
917 }
918 }
919 }
920
921 public void stop() throws Exception {
922 synchronized (this) {
923 pendingStop = true;
924 if (starting) {
925 LOG.debug("stop() called in the middle of start(). Delaying...");
926 return;
927 }
928 }
929 stopAsync();
930 while (!stopped.await(5, TimeUnit.SECONDS)) {
931 LOG.info("The connection to '" + transport.getRemoteAddress() + "' is taking a long time to shutdown.");
932 }
933 }
934
935 public void stopAsync() {
936 // If we're in the middle of starting
937 // then go no further... for now.
938 if (stopping.compareAndSet(false, true)) {
939 // Let all the connection contexts know we are shutting down
940 // so that in progress operations can notice and unblock.
941 List<TransportConnectionState> connectionStates = listConnectionStates();
942 for (TransportConnectionState cs : connectionStates) {
943 cs.getContext().getStopping().set(true);
944 }
945 try {
946 final Map context = MDCHelper.getCopyOfContextMap();
947 DefaultThreadPools.getDefaultTaskRunnerFactory().execute(new Runnable(){
948 public void run() {
949 serviceLock.writeLock().lock();
950 try {
951 MDCHelper.setContextMap(context);
952 doStop();
953 } catch (Throwable e) {
954 LOG.debug("Error occured while shutting down a connection to '" + transport.getRemoteAddress()
955 + "': ", e);
956 } finally {
957 stopped.countDown();
958 serviceLock.writeLock().unlock();
959 }
960 }
961 }, "StopAsync:" + transport.getRemoteAddress());
962 } catch (Throwable t) {
963 LOG.warn("cannot create async transport stopper thread.. not waiting for stop to complete, reason:", t);
964 stopped.countDown();
965 }
966 }
967 }
968
969 @Override
970 public String toString() {
971 return "Transport Connection to: " + transport.getRemoteAddress();
972 }
973
974 protected void doStop() throws Exception, InterruptedException {
975 LOG.debug("Stopping connection: " + transport.getRemoteAddress());
976 connector.onStopped(this);
977 try {
978 synchronized (this) {
979 if (masterBroker != null) {
980 masterBroker.stop();
981 }
982 if (duplexBridge != null) {
983 duplexBridge.stop();
984 }
985 }
986 } catch (Exception ignore) {
987 LOG.trace("Exception caught stopping", ignore);
988 }
989 try {
990 transport.stop();
991 LOG.debug("Stopped transport: " + transport.getRemoteAddress());
992 } catch (Exception e) {
993 LOG.debug("Could not stop transport: " + e, e);
994 }
995 if (taskRunner != null) {
996 taskRunner.shutdown(1);
997 }
998 active = false;
999 // Run the MessageDispatch callbacks so that message references get
1000 // cleaned up.
1001 synchronized (dispatchQueue) {
1002 for (Iterator<Command> iter = dispatchQueue.iterator(); iter.hasNext();) {
1003 Command command = iter.next();
1004 if (command.isMessageDispatch()) {
1005 MessageDispatch md = (MessageDispatch) command;
1006 Runnable sub = md.getTransmitCallback();
1007 broker.postProcessDispatch(md);
1008 if (sub != null) {
1009 sub.run();
1010 }
1011 }
1012 }
1013 dispatchQueue.clear();
1014 }
1015 //
1016 // Remove all logical connection associated with this connection
1017 // from the broker.
1018 if (!broker.isStopped()) {
1019 List<TransportConnectionState> connectionStates = listConnectionStates();
1020 connectionStates = listConnectionStates();
1021 for (TransportConnectionState cs : connectionStates) {
1022 cs.getContext().getStopping().set(true);
1023 try {
1024 LOG.debug("Cleaning up connection resources: " + getRemoteAddress());
1025 processRemoveConnection(cs.getInfo().getConnectionId(), 0l);
1026 } catch (Throwable ignore) {
1027 ignore.printStackTrace();
1028 }
1029 }
1030 }
1031 LOG.debug("Connection Stopped: " + getRemoteAddress());
1032 }
1033
1034 /**
1035 * @return Returns the blockedCandidate.
1036 */
1037 public boolean isBlockedCandidate() {
1038 return blockedCandidate;
1039 }
1040
1041 /**
1042 * @param blockedCandidate
1043 * The blockedCandidate to set.
1044 */
1045 public void setBlockedCandidate(boolean blockedCandidate) {
1046 this.blockedCandidate = blockedCandidate;
1047 }
1048
1049 /**
1050 * @return Returns the markedCandidate.
1051 */
1052 public boolean isMarkedCandidate() {
1053 return markedCandidate;
1054 }
1055
1056 /**
1057 * @param markedCandidate
1058 * The markedCandidate to set.
1059 */
1060 public void setMarkedCandidate(boolean markedCandidate) {
1061 this.markedCandidate = markedCandidate;
1062 if (!markedCandidate) {
1063 timeStamp = 0;
1064 blockedCandidate = false;
1065 }
1066 }
1067
1068 /**
1069 * @param slow
1070 * The slow to set.
1071 */
1072 public void setSlow(boolean slow) {
1073 this.slow = slow;
1074 }
1075
1076 /**
1077 * @return true if the Connection is slow
1078 */
1079 public boolean isSlow() {
1080 return slow;
1081 }
1082
1083 /**
1084 * @return true if the Connection is potentially blocked
1085 */
1086 public boolean isMarkedBlockedCandidate() {
1087 return markedCandidate;
1088 }
1089
1090 /**
1091 * Mark the Connection, so we can deem if it's collectable on the next sweep
1092 */
1093 public void doMark() {
1094 if (timeStamp == 0) {
1095 timeStamp = System.currentTimeMillis();
1096 }
1097 }
1098
1099 /**
1100 * @return if after being marked, the Connection is still writing
1101 */
1102 public boolean isBlocked() {
1103 return blocked;
1104 }
1105
1106 /**
1107 * @return true if the Connection is connected
1108 */
1109 public boolean isConnected() {
1110 return connected;
1111 }
1112
1113 /**
1114 * @param blocked
1115 * The blocked to set.
1116 */
1117 public void setBlocked(boolean blocked) {
1118 this.blocked = blocked;
1119 }
1120
1121 /**
1122 * @param connected
1123 * The connected to set.
1124 */
1125 public void setConnected(boolean connected) {
1126 this.connected = connected;
1127 }
1128
1129 /**
1130 * @return true if the Connection is active
1131 */
1132 public boolean isActive() {
1133 return active;
1134 }
1135
1136 /**
1137 * @param active
1138 * The active to set.
1139 */
1140 public void setActive(boolean active) {
1141 this.active = active;
1142 }
1143
1144 /**
1145 * @return true if the Connection is starting
1146 */
1147 public synchronized boolean isStarting() {
1148 return starting;
1149 }
1150
1151 public synchronized boolean isNetworkConnection() {
1152 return networkConnection;
1153 }
1154
1155 public boolean isFaultTolerantConnection() {
1156 return this.faultTolerantConnection;
1157 }
1158
1159 protected synchronized void setStarting(boolean starting) {
1160 this.starting = starting;
1161 }
1162
1163 /**
1164 * @return true if the Connection needs to stop
1165 */
1166 public synchronized boolean isPendingStop() {
1167 return pendingStop;
1168 }
1169
1170 protected synchronized void setPendingStop(boolean pendingStop) {
1171 this.pendingStop = pendingStop;
1172 }
1173
1174 public Response processBrokerInfo(BrokerInfo info) {
1175 if (info.isSlaveBroker()) {
1176 BrokerService bService = connector.getBrokerService();
1177 // Do we only support passive slaves - or does the slave want to be
1178 // passive ?
1179 boolean passive = bService.isPassiveSlave() || info.isPassiveSlave();
1180 if (passive == false) {
1181
1182 // stream messages from this broker (the master) to
1183 // the slave
1184 MutableBrokerFilter parent = (MutableBrokerFilter) broker.getAdaptor(MutableBrokerFilter.class);
1185 masterBroker = new MasterBroker(parent, transport);
1186 masterBroker.startProcessing();
1187 }
1188 LOG.info((passive?"Passive":"Active")+" Slave Broker " + info.getBrokerName() + " is attached");
1189 bService.slaveConnectionEstablished();
1190 } else if (info.isNetworkConnection() && info.isDuplexConnection()) {
1191 // so this TransportConnection is the rear end of a network bridge
1192 // We have been requested to create a two way pipe ...
1193 try {
1194 Properties properties = MarshallingSupport.stringToProperties(info.getNetworkProperties());
1195 Map<String, String> props = createMap(properties);
1196 NetworkBridgeConfiguration config = new NetworkBridgeConfiguration();
1197 IntrospectionSupport.setProperties(config, props, "");
1198 config.setBrokerName(broker.getBrokerName());
1199
1200 // check for existing duplex connection hanging about
1201
1202 // We first look if existing network connection already exists for the same broker Id and network connector name
1203 // It's possible in case of brief network fault to have this transport connector side of the connection always active
1204 // and the duplex network connector side wanting to open a new one
1205 // In this case, the old connection must be broken
1206 String duplexNetworkConnectorId = config.getName() + "@" + info.getBrokerId();
1207 CopyOnWriteArrayList<TransportConnection> connections = this.connector.getConnections();
1208 synchronized (connections) {
1209 for (Iterator<TransportConnection> iter = connections.iterator(); iter.hasNext();) {
1210 TransportConnection c = iter.next();
1211 if ((c != this) && (duplexNetworkConnectorId.equals(c.getDuplexNetworkConnectorId()))) {
1212 LOG.warn("Stopping an existing active duplex connection [" + c + "] for network connector (" + duplexNetworkConnectorId + ").");
1213 c.stopAsync();
1214 // better to wait for a bit rather than get connection id already in use and failure to start new bridge
1215 c.getStopped().await(1, TimeUnit.SECONDS);
1216 }
1217 }
1218 setDuplexNetworkConnectorId(duplexNetworkConnectorId);
1219 }
1220 URI uri = broker.getVmConnectorURI();
1221 HashMap<String, String> map = new HashMap<String, String>(URISupport.parseParameters(uri));
1222 map.put("network", "true");
1223 map.put("async", "false");
1224 uri = URISupport.createURIWithQuery(uri, URISupport.createQueryString(map));
1225 Transport localTransport = TransportFactory.connect(uri);
1226 Transport remoteBridgeTransport = new ResponseCorrelator(transport);
1227 String duplexName = localTransport.toString();
1228 if (duplexName.contains("#")) {
1229 duplexName = duplexName.substring(duplexName.lastIndexOf("#"));
1230 }
1231 MBeanNetworkListener listener = new MBeanNetworkListener(broker.getBrokerService(), broker.getBrokerService().createDuplexNetworkConnectorObjectName(duplexName));
1232 listener.setCreatedByDuplex(true);
1233 duplexBridge = NetworkBridgeFactory.createBridge(config, localTransport, remoteBridgeTransport, listener);
1234 duplexBridge.setBrokerService(broker.getBrokerService());
1235 // now turn duplex off this side
1236 info.setDuplexConnection(false);
1237 duplexBridge.setCreatedByDuplex(true);
1238 duplexBridge.duplexStart(this, brokerInfo, info);
1239 LOG.info("Started responder end of duplex bridge " + duplexNetworkConnectorId);
1240 return null;
1241 } catch (TransportDisposedIOException e) {
1242 LOG.warn("Duplex bridge " + duplexNetworkConnectorId + " was stopped before it was correctly started.");
1243 return null;
1244 } catch (Exception e) {
1245 LOG.error("Failed to create responder end of duplex network bridge " + duplexNetworkConnectorId , e);
1246 return null;
1247 }
1248 }
1249 // We only expect to get one broker info command per connection
1250 if (this.brokerInfo != null) {
1251 LOG.warn("Unexpected extra broker info command received: " + info);
1252 }
1253 this.brokerInfo = info;
1254 networkConnection = true;
1255 List<TransportConnectionState> connectionStates = listConnectionStates();
1256 for (TransportConnectionState cs : connectionStates) {
1257 cs.getContext().setNetworkConnection(true);
1258 }
1259 return null;
1260 }
1261
1262 @SuppressWarnings("unchecked")
1263 private HashMap<String, String> createMap(Properties properties) {
1264 return new HashMap(properties);
1265 }
1266
1267 protected void dispatch(Command command) throws IOException {
1268 try {
1269 setMarkedCandidate(true);
1270 transport.oneway(command);
1271 } finally {
1272 setMarkedCandidate(false);
1273 }
1274 }
1275
1276 public String getRemoteAddress() {
1277 return transport.getRemoteAddress();
1278 }
1279
1280 public String getConnectionId() {
1281 List<TransportConnectionState> connectionStates = listConnectionStates();
1282 for (TransportConnectionState cs : connectionStates) {
1283 if (cs.getInfo().getClientId() != null) {
1284 return cs.getInfo().getClientId();
1285 }
1286 return cs.getInfo().getConnectionId().toString();
1287 }
1288 return null;
1289 }
1290
1291 public void updateClient(ConnectionControl control) {
1292 if (isActive() && isBlocked() == false && isFaultTolerantConnection() && this.wireFormatInfo != null
1293 && this.wireFormatInfo.getVersion() >= 6) {
1294 dispatchAsync(control);
1295 }
1296 }
1297
1298 private ProducerBrokerExchange getProducerBrokerExchange(ProducerId id) throws IOException {
1299 ProducerBrokerExchange result = producerExchanges.get(id);
1300 if (result == null) {
1301 synchronized (producerExchanges) {
1302 result = new ProducerBrokerExchange();
1303 TransportConnectionState state = lookupConnectionState(id);
1304 context = state.getContext();
1305 if (context.isReconnect()) {
1306 result.setLastStoredSequenceId(broker.getBrokerService().getPersistenceAdapter().getLastProducerSequenceId(id));
1307 }
1308 result.setConnectionContext(context);
1309 SessionState ss = state.getSessionState(id.getParentId());
1310 if (ss != null) {
1311 result.setProducerState(ss.getProducerState(id));
1312 ProducerState producerState = ss.getProducerState(id);
1313 if (producerState != null && producerState.getInfo() != null) {
1314 ProducerInfo info = producerState.getInfo();
1315 result.setMutable(info.getDestination() == null || info.getDestination().isComposite());
1316 }
1317 }
1318 producerExchanges.put(id, result);
1319 }
1320 } else {
1321 context = result.getConnectionContext();
1322 }
1323 return result;
1324 }
1325
1326 private void removeProducerBrokerExchange(ProducerId id) {
1327 synchronized (producerExchanges) {
1328 producerExchanges.remove(id);
1329 }
1330 }
1331
1332 private ConsumerBrokerExchange getConsumerBrokerExchange(ConsumerId id) {
1333 ConsumerBrokerExchange result = consumerExchanges.get(id);
1334 if (result == null) {
1335 synchronized (consumerExchanges) {
1336 result = new ConsumerBrokerExchange();
1337 TransportConnectionState state = lookupConnectionState(id);
1338 context = state.getContext();
1339 result.setConnectionContext(context);
1340 SessionState ss = state.getSessionState(id.getParentId());
1341 if (ss != null) {
1342 ConsumerState cs = ss.getConsumerState(id);
1343 if (cs != null) {
1344 ConsumerInfo info = cs.getInfo();
1345 if (info != null) {
1346 if (info.getDestination() != null && info.getDestination().isPattern()) {
1347 result.setWildcard(true);
1348 }
1349 }
1350 }
1351 }
1352 consumerExchanges.put(id, result);
1353 }
1354 }
1355 return result;
1356 }
1357
1358 private void removeConsumerBrokerExchange(ConsumerId id) {
1359 synchronized (consumerExchanges) {
1360 consumerExchanges.remove(id);
1361 }
1362 }
1363
1364 public int getProtocolVersion() {
1365 return protocolVersion.get();
1366 }
1367
1368 public Response processControlCommand(ControlCommand command) throws Exception {
1369 String control = command.getCommand();
1370 if (control != null && control.equals("shutdown")) {
1371 System.exit(0);
1372 }
1373 return null;
1374 }
1375
1376 public Response processMessageDispatch(MessageDispatch dispatch) throws Exception {
1377 return null;
1378 }
1379
1380 public Response processConnectionControl(ConnectionControl control) throws Exception {
1381 if (control != null) {
1382 faultTolerantConnection = control.isFaultTolerant();
1383 }
1384 return null;
1385 }
1386
1387 public Response processConnectionError(ConnectionError error) throws Exception {
1388 return null;
1389 }
1390
1391 public Response processConsumerControl(ConsumerControl control) throws Exception {
1392 ConsumerBrokerExchange consumerExchange = getConsumerBrokerExchange(control.getConsumerId());
1393 broker.processConsumerControl(consumerExchange, control);
1394 return null;
1395 }
1396
1397 protected synchronized TransportConnectionState registerConnectionState(ConnectionId connectionId,
1398 TransportConnectionState state) {
1399 TransportConnectionState cs = null;
1400 if (!connectionStateRegister.isEmpty() && !connectionStateRegister.doesHandleMultipleConnectionStates()) {
1401 // swap implementations
1402 TransportConnectionStateRegister newRegister = new MapTransportConnectionStateRegister();
1403 newRegister.intialize(connectionStateRegister);
1404 connectionStateRegister = newRegister;
1405 }
1406 cs = connectionStateRegister.registerConnectionState(connectionId, state);
1407 return cs;
1408 }
1409
1410 protected synchronized TransportConnectionState unregisterConnectionState(ConnectionId connectionId) {
1411 return connectionStateRegister.unregisterConnectionState(connectionId);
1412 }
1413
1414 protected synchronized List<TransportConnectionState> listConnectionStates() {
1415 return connectionStateRegister.listConnectionStates();
1416 }
1417
1418 protected synchronized TransportConnectionState lookupConnectionState(String connectionId) {
1419 return connectionStateRegister.lookupConnectionState(connectionId);
1420 }
1421
1422 protected synchronized TransportConnectionState lookupConnectionState(ConsumerId id) {
1423 return connectionStateRegister.lookupConnectionState(id);
1424 }
1425
1426 protected synchronized TransportConnectionState lookupConnectionState(ProducerId id) {
1427 return connectionStateRegister.lookupConnectionState(id);
1428 }
1429
1430 protected synchronized TransportConnectionState lookupConnectionState(SessionId id) {
1431 return connectionStateRegister.lookupConnectionState(id);
1432 }
1433
1434 protected synchronized TransportConnectionState lookupConnectionState(ConnectionId connectionId) {
1435 return connectionStateRegister.lookupConnectionState(connectionId);
1436 }
1437
1438 protected synchronized void setDuplexNetworkConnectorId(String duplexNetworkConnectorId) {
1439 this.duplexNetworkConnectorId = duplexNetworkConnectorId;
1440 }
1441
1442 protected synchronized String getDuplexNetworkConnectorId() {
1443 return this.duplexNetworkConnectorId;
1444 }
1445
1446 protected CountDownLatch getStopped() {
1447 return stopped;
1448 }
1449 }