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 */ 017package org.apache.activemq.advisory; 018 019import java.util.ArrayList; 020import java.util.Collection; 021import java.util.Iterator; 022import java.util.LinkedHashMap; 023import java.util.Map; 024import java.util.Set; 025import java.util.concurrent.ConcurrentHashMap; 026import java.util.concurrent.ConcurrentMap; 027import java.util.concurrent.locks.ReentrantReadWriteLock; 028 029import org.apache.activemq.broker.Broker; 030import org.apache.activemq.broker.BrokerFilter; 031import org.apache.activemq.broker.BrokerService; 032import org.apache.activemq.broker.ConnectionContext; 033import org.apache.activemq.broker.ProducerBrokerExchange; 034import org.apache.activemq.broker.region.Destination; 035import org.apache.activemq.broker.region.DurableTopicSubscription; 036import org.apache.activemq.broker.region.MessageReference; 037import org.apache.activemq.broker.region.RegionBroker; 038import org.apache.activemq.broker.region.Subscription; 039import org.apache.activemq.broker.region.TopicRegion; 040import org.apache.activemq.broker.region.TopicSubscription; 041import org.apache.activemq.command.ActiveMQDestination; 042import org.apache.activemq.command.ActiveMQMessage; 043import org.apache.activemq.command.ActiveMQTopic; 044import org.apache.activemq.command.BrokerInfo; 045import org.apache.activemq.command.Command; 046import org.apache.activemq.command.ConnectionId; 047import org.apache.activemq.command.ConnectionInfo; 048import org.apache.activemq.command.ConsumerId; 049import org.apache.activemq.command.ConsumerInfo; 050import org.apache.activemq.command.DestinationInfo; 051import org.apache.activemq.command.Message; 052import org.apache.activemq.command.MessageId; 053import org.apache.activemq.command.ProducerId; 054import org.apache.activemq.command.ProducerInfo; 055import org.apache.activemq.command.RemoveSubscriptionInfo; 056import org.apache.activemq.security.SecurityContext; 057import org.apache.activemq.state.ProducerState; 058import org.apache.activemq.usage.Usage; 059import org.apache.activemq.util.IdGenerator; 060import org.apache.activemq.util.LongSequenceGenerator; 061import org.apache.activemq.util.SubscriptionKey; 062import org.slf4j.Logger; 063import org.slf4j.LoggerFactory; 064 065/** 066 * This broker filter handles tracking the state of the broker for purposes of 067 * publishing advisory messages to advisory consumers. 068 */ 069public class AdvisoryBroker extends BrokerFilter { 070 071 private static final Logger LOG = LoggerFactory.getLogger(AdvisoryBroker.class); 072 private static final IdGenerator ID_GENERATOR = new IdGenerator(); 073 074 protected final ConcurrentMap<ConnectionId, ConnectionInfo> connections = new ConcurrentHashMap<ConnectionId, ConnectionInfo>(); 075 076 private final ReentrantReadWriteLock consumersLock = new ReentrantReadWriteLock(); 077 protected final Map<ConsumerId, ConsumerInfo> consumers = new LinkedHashMap<ConsumerId, ConsumerInfo>(); 078 079 protected final ConcurrentMap<ProducerId, ProducerInfo> producers = new ConcurrentHashMap<ProducerId, ProducerInfo>(); 080 protected final ConcurrentMap<ActiveMQDestination, DestinationInfo> destinations = new ConcurrentHashMap<ActiveMQDestination, DestinationInfo>(); 081 protected final ConcurrentMap<BrokerInfo, ActiveMQMessage> networkBridges = new ConcurrentHashMap<BrokerInfo, ActiveMQMessage>(); 082 protected final ProducerId advisoryProducerId = new ProducerId(); 083 084 private final LongSequenceGenerator messageIdGenerator = new LongSequenceGenerator(); 085 086 public AdvisoryBroker(Broker next) { 087 super(next); 088 advisoryProducerId.setConnectionId(ID_GENERATOR.generateId()); 089 } 090 091 @Override 092 public void addConnection(ConnectionContext context, ConnectionInfo info) throws Exception { 093 super.addConnection(context, info); 094 095 ActiveMQTopic topic = AdvisorySupport.getConnectionAdvisoryTopic(); 096 // do not distribute passwords in advisory messages. usernames okay 097 ConnectionInfo copy = info.copy(); 098 copy.setPassword(""); 099 fireAdvisory(context, topic, copy); 100 connections.put(copy.getConnectionId(), copy); 101 } 102 103 @Override 104 public Subscription addConsumer(ConnectionContext context, ConsumerInfo info) throws Exception { 105 Subscription answer = super.addConsumer(context, info); 106 107 // Don't advise advisory topics. 108 if (!AdvisorySupport.isAdvisoryTopic(info.getDestination())) { 109 ActiveMQTopic topic = AdvisorySupport.getConsumerAdvisoryTopic(info.getDestination()); 110 consumersLock.writeLock().lock(); 111 try { 112 consumers.put(info.getConsumerId(), info); 113 } finally { 114 consumersLock.writeLock().unlock(); 115 } 116 fireConsumerAdvisory(context, info.getDestination(), topic, info); 117 } else { 118 // We need to replay all the previously collected state objects 119 // for this newly added consumer. 120 if (AdvisorySupport.isConnectionAdvisoryTopic(info.getDestination())) { 121 // Replay the connections. 122 for (Iterator<ConnectionInfo> iter = connections.values().iterator(); iter.hasNext(); ) { 123 ConnectionInfo value = iter.next(); 124 ActiveMQTopic topic = AdvisorySupport.getConnectionAdvisoryTopic(); 125 fireAdvisory(context, topic, value, info.getConsumerId()); 126 } 127 } 128 129 // We check here whether the Destination is Temporary Destination specific or not since we 130 // can avoid sending advisory messages to the consumer if it only wants Temporary Destination 131 // notifications. If its not just temporary destination related destinations then we have 132 // to send them all, a composite destination could want both. 133 if (AdvisorySupport.isTempDestinationAdvisoryTopic(info.getDestination())) { 134 // Replay the temporary destinations. 135 for (DestinationInfo destination : destinations.values()) { 136 if (destination.getDestination().isTemporary()) { 137 ActiveMQTopic topic = AdvisorySupport.getDestinationAdvisoryTopic(destination.getDestination()); 138 fireAdvisory(context, topic, destination, info.getConsumerId()); 139 } 140 } 141 } else if (AdvisorySupport.isDestinationAdvisoryTopic(info.getDestination())) { 142 // Replay all the destinations. 143 for (DestinationInfo destination : destinations.values()) { 144 ActiveMQTopic topic = AdvisorySupport.getDestinationAdvisoryTopic(destination.getDestination()); 145 fireAdvisory(context, topic, destination, info.getConsumerId()); 146 } 147 } 148 149 // Replay the producers. 150 if (AdvisorySupport.isProducerAdvisoryTopic(info.getDestination())) { 151 for (Iterator<ProducerInfo> iter = producers.values().iterator(); iter.hasNext(); ) { 152 ProducerInfo value = iter.next(); 153 ActiveMQTopic topic = AdvisorySupport.getProducerAdvisoryTopic(value.getDestination()); 154 fireProducerAdvisory(context, value.getDestination(), topic, value, info.getConsumerId()); 155 } 156 } 157 158 // Replay the consumers. 159 if (AdvisorySupport.isConsumerAdvisoryTopic(info.getDestination())) { 160 consumersLock.readLock().lock(); 161 try { 162 for (Iterator<ConsumerInfo> iter = consumers.values().iterator(); iter.hasNext(); ) { 163 ConsumerInfo value = iter.next(); 164 ActiveMQTopic topic = AdvisorySupport.getConsumerAdvisoryTopic(value.getDestination()); 165 fireConsumerAdvisory(context, value.getDestination(), topic, value, info.getConsumerId()); 166 } 167 } finally { 168 consumersLock.readLock().unlock(); 169 } 170 } 171 172 // Replay network bridges 173 if (AdvisorySupport.isNetworkBridgeAdvisoryTopic(info.getDestination())) { 174 for (Iterator<BrokerInfo> iter = networkBridges.keySet().iterator(); iter.hasNext(); ) { 175 BrokerInfo key = iter.next(); 176 ActiveMQTopic topic = AdvisorySupport.getNetworkBridgeAdvisoryTopic(); 177 fireAdvisory(context, topic, key, null, networkBridges.get(key)); 178 } 179 } 180 } 181 return answer; 182 } 183 184 @Override 185 public void addProducer(ConnectionContext context, ProducerInfo info) throws Exception { 186 super.addProducer(context, info); 187 188 // Don't advise advisory topics. 189 if (info.getDestination() != null && !AdvisorySupport.isAdvisoryTopic(info.getDestination())) { 190 ActiveMQTopic topic = AdvisorySupport.getProducerAdvisoryTopic(info.getDestination()); 191 fireProducerAdvisory(context, info.getDestination(), topic, info); 192 producers.put(info.getProducerId(), info); 193 } 194 } 195 196 @Override 197 public Destination addDestination(ConnectionContext context, ActiveMQDestination destination, boolean create) throws Exception { 198 Destination answer = super.addDestination(context, destination, create); 199 if (!AdvisorySupport.isAdvisoryTopic(destination)) { 200 DestinationInfo info = new DestinationInfo(context.getConnectionId(), DestinationInfo.ADD_OPERATION_TYPE, destination); 201 DestinationInfo previous = destinations.putIfAbsent(destination, info); 202 if (previous == null) { 203 ActiveMQTopic topic = AdvisorySupport.getDestinationAdvisoryTopic(destination); 204 fireAdvisory(context, topic, info); 205 } 206 } 207 return answer; 208 } 209 210 @Override 211 public void addDestinationInfo(ConnectionContext context, DestinationInfo info) throws Exception { 212 ActiveMQDestination destination = info.getDestination(); 213 next.addDestinationInfo(context, info); 214 215 if (!AdvisorySupport.isAdvisoryTopic(destination)) { 216 DestinationInfo previous = destinations.putIfAbsent(destination, info); 217 if (previous == null) { 218 ActiveMQTopic topic = AdvisorySupport.getDestinationAdvisoryTopic(destination); 219 fireAdvisory(context, topic, info); 220 } 221 } 222 } 223 224 @Override 225 public void removeDestination(ConnectionContext context, ActiveMQDestination destination, long timeout) throws Exception { 226 super.removeDestination(context, destination, timeout); 227 DestinationInfo info = destinations.remove(destination); 228 if (info != null) { 229 // ensure we don't modify (and loose/overwrite) an in-flight add advisory, so duplicate 230 info = info.copy(); 231 info.setDestination(destination); 232 info.setOperationType(DestinationInfo.REMOVE_OPERATION_TYPE); 233 ActiveMQTopic topic = AdvisorySupport.getDestinationAdvisoryTopic(destination); 234 fireAdvisory(context, topic, info); 235 ActiveMQTopic[] advisoryDestinations = AdvisorySupport.getAllDestinationAdvisoryTopics(destination); 236 for (ActiveMQTopic advisoryDestination : advisoryDestinations) { 237 try { 238 next.removeDestination(context, advisoryDestination, -1); 239 } catch (Exception expectedIfDestinationDidNotExistYet) { 240 } 241 } 242 } 243 } 244 245 @Override 246 public void removeDestinationInfo(ConnectionContext context, DestinationInfo destInfo) throws Exception { 247 super.removeDestinationInfo(context, destInfo); 248 DestinationInfo info = destinations.remove(destInfo.getDestination()); 249 if (info != null) { 250 // ensure we don't modify (and loose/overwrite) an in-flight add advisory, so duplicate 251 info = info.copy(); 252 info.setDestination(destInfo.getDestination()); 253 info.setOperationType(DestinationInfo.REMOVE_OPERATION_TYPE); 254 ActiveMQTopic topic = AdvisorySupport.getDestinationAdvisoryTopic(destInfo.getDestination()); 255 fireAdvisory(context, topic, info); 256 ActiveMQTopic[] advisoryDestinations = AdvisorySupport.getAllDestinationAdvisoryTopics(destInfo.getDestination()); 257 for (ActiveMQTopic advisoryDestination : advisoryDestinations) { 258 try { 259 next.removeDestination(context, advisoryDestination, -1); 260 } catch (Exception expectedIfDestinationDidNotExistYet) { 261 } 262 } 263 } 264 } 265 266 @Override 267 public void removeConnection(ConnectionContext context, ConnectionInfo info, Throwable error) throws Exception { 268 super.removeConnection(context, info, error); 269 270 ActiveMQTopic topic = AdvisorySupport.getConnectionAdvisoryTopic(); 271 fireAdvisory(context, topic, info.createRemoveCommand()); 272 connections.remove(info.getConnectionId()); 273 } 274 275 @Override 276 public void removeConsumer(ConnectionContext context, ConsumerInfo info) throws Exception { 277 super.removeConsumer(context, info); 278 279 // Don't advise advisory topics. 280 ActiveMQDestination dest = info.getDestination(); 281 if (!AdvisorySupport.isAdvisoryTopic(dest)) { 282 ActiveMQTopic topic = AdvisorySupport.getConsumerAdvisoryTopic(dest); 283 consumersLock.writeLock().lock(); 284 try { 285 consumers.remove(info.getConsumerId()); 286 } finally { 287 consumersLock.writeLock().unlock(); 288 } 289 if (!dest.isTemporary() || destinations.containsKey(dest)) { 290 fireConsumerAdvisory(context, dest, topic, info.createRemoveCommand()); 291 } 292 } 293 } 294 295 @Override 296 public void removeSubscription(ConnectionContext context, RemoveSubscriptionInfo info) throws Exception { 297 SubscriptionKey key = new SubscriptionKey(context.getClientId(), info.getSubscriptionName()); 298 299 RegionBroker regionBroker = null; 300 if (next instanceof RegionBroker) { 301 regionBroker = (RegionBroker) next; 302 } else { 303 BrokerService service = next.getBrokerService(); 304 regionBroker = (RegionBroker) service.getRegionBroker(); 305 } 306 307 if (regionBroker == null) { 308 LOG.warn("Cannot locate a RegionBroker instance to pass along the removeSubscription call"); 309 throw new IllegalStateException("No RegionBroker found."); 310 } 311 312 DurableTopicSubscription sub = ((TopicRegion) regionBroker.getTopicRegion()).getDurableSubscription(key); 313 314 super.removeSubscription(context, info); 315 316 if (sub == null) { 317 LOG.warn("We cannot send an advisory message for a durable sub removal when we don't know about the durable sub"); 318 return; 319 } 320 321 ActiveMQDestination dest = sub.getConsumerInfo().getDestination(); 322 323 // Don't advise advisory topics. 324 if (!AdvisorySupport.isAdvisoryTopic(dest)) { 325 ActiveMQTopic topic = AdvisorySupport.getConsumerAdvisoryTopic(dest); 326 fireConsumerAdvisory(context, dest, topic, info); 327 } 328 329 } 330 331 @Override 332 public void removeProducer(ConnectionContext context, ProducerInfo info) throws Exception { 333 super.removeProducer(context, info); 334 335 // Don't advise advisory topics. 336 ActiveMQDestination dest = info.getDestination(); 337 if (info.getDestination() != null && !AdvisorySupport.isAdvisoryTopic(dest)) { 338 ActiveMQTopic topic = AdvisorySupport.getProducerAdvisoryTopic(dest); 339 producers.remove(info.getProducerId()); 340 if (!dest.isTemporary() || destinations.containsKey(dest)) { 341 fireProducerAdvisory(context, dest, topic, info.createRemoveCommand()); 342 } 343 } 344 } 345 346 @Override 347 public void messageExpired(ConnectionContext context, MessageReference messageReference, Subscription subscription) { 348 super.messageExpired(context, messageReference, subscription); 349 try { 350 if (!messageReference.isAdvisory()) { 351 ActiveMQTopic topic = AdvisorySupport.getExpiredMessageTopic(messageReference.getMessage().getDestination()); 352 Message payload = messageReference.getMessage().copy(); 353 payload.clearBody(); 354 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 355 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_MESSAGE_ID, payload.getMessageId().toString()); 356 fireAdvisory(context, topic, payload, null, advisoryMessage); 357 } 358 } catch (Exception e) { 359 handleFireFailure("expired", e); 360 } 361 } 362 363 @Override 364 public void messageConsumed(ConnectionContext context, MessageReference messageReference) { 365 super.messageConsumed(context, messageReference); 366 try { 367 if (!messageReference.isAdvisory()) { 368 ActiveMQTopic topic = AdvisorySupport.getMessageConsumedAdvisoryTopic(messageReference.getMessage().getDestination()); 369 Message payload = messageReference.getMessage().copy(); 370 payload.clearBody(); 371 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 372 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_MESSAGE_ID, payload.getMessageId().toString()); 373 ActiveMQDestination destination = payload.getDestination(); 374 if (destination != null) { 375 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_DESTINATION, payload.getMessageId().toString()); 376 } 377 fireAdvisory(context, topic, payload, null, advisoryMessage); 378 } 379 } catch (Exception e) { 380 handleFireFailure("consumed", e); 381 } 382 } 383 384 @Override 385 public void messageDelivered(ConnectionContext context, MessageReference messageReference) { 386 super.messageDelivered(context, messageReference); 387 try { 388 if (!messageReference.isAdvisory()) { 389 ActiveMQTopic topic = AdvisorySupport.getMessageDeliveredAdvisoryTopic(messageReference.getMessage().getDestination()); 390 Message payload = messageReference.getMessage().copy(); 391 payload.clearBody(); 392 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 393 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_MESSAGE_ID, payload.getMessageId().toString()); 394 ActiveMQDestination destination = payload.getDestination(); 395 if (destination != null) { 396 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_DESTINATION, payload.getMessageId().toString()); 397 } 398 fireAdvisory(context, topic, payload, null, advisoryMessage); 399 } 400 } catch (Exception e) { 401 handleFireFailure("delivered", e); 402 } 403 } 404 405 @Override 406 public void messageDiscarded(ConnectionContext context, Subscription sub, MessageReference messageReference) { 407 super.messageDiscarded(context, sub, messageReference); 408 try { 409 if (!messageReference.isAdvisory()) { 410 ActiveMQTopic topic = AdvisorySupport.getMessageDiscardedAdvisoryTopic(messageReference.getMessage().getDestination()); 411 Message payload = messageReference.getMessage().copy(); 412 payload.clearBody(); 413 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 414 if (sub instanceof TopicSubscription) { 415 advisoryMessage.setIntProperty(AdvisorySupport.MSG_PROPERTY_DISCARDED_COUNT, ((TopicSubscription) sub).discarded()); 416 } 417 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_MESSAGE_ID, payload.getMessageId().toString()); 418 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_CONSUMER_ID, sub.getConsumerInfo().getConsumerId().toString()); 419 ActiveMQDestination destination = payload.getDestination(); 420 if (destination != null) { 421 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_DESTINATION, payload.getMessageId().toString()); 422 } 423 fireAdvisory(context, topic, payload, null, advisoryMessage); 424 } 425 } catch (Exception e) { 426 handleFireFailure("discarded", e); 427 } 428 } 429 430 @Override 431 public void slowConsumer(ConnectionContext context, Destination destination, Subscription subs) { 432 super.slowConsumer(context, destination, subs); 433 try { 434 if (!AdvisorySupport.isAdvisoryTopic(destination.getActiveMQDestination())) { 435 ActiveMQTopic topic = AdvisorySupport.getSlowConsumerAdvisoryTopic(destination.getActiveMQDestination()); 436 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 437 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_CONSUMER_ID, subs.getConsumerInfo().getConsumerId().toString()); 438 fireAdvisory(context, topic, subs.getConsumerInfo(), null, advisoryMessage); 439 } 440 } catch (Exception e) { 441 handleFireFailure("slow consumer", e); 442 } 443 } 444 445 @Override 446 public void fastProducer(ConnectionContext context, ProducerInfo producerInfo, ActiveMQDestination destination) { 447 super.fastProducer(context, producerInfo, destination); 448 try { 449 if (!AdvisorySupport.isAdvisoryTopic(destination)) { 450 ActiveMQTopic topic = AdvisorySupport.getFastProducerAdvisoryTopic(destination); 451 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 452 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_PRODUCER_ID, producerInfo.getProducerId().toString()); 453 fireAdvisory(context, topic, producerInfo, null, advisoryMessage); 454 } 455 } catch (Exception e) { 456 handleFireFailure("fast producer", e); 457 } 458 } 459 460 @Override 461 public void isFull(ConnectionContext context, Destination destination, Usage usage) { 462 super.isFull(context, destination, usage); 463 if (AdvisorySupport.isAdvisoryTopic(destination.getActiveMQDestination()) == false) { 464 try { 465 466 ActiveMQTopic topic = AdvisorySupport.getFullAdvisoryTopic(destination.getActiveMQDestination()); 467 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 468 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_USAGE_NAME, usage.getName()); 469 fireAdvisory(context, topic, null, null, advisoryMessage); 470 471 } catch (Exception e) { 472 handleFireFailure("is full", e); 473 } 474 } 475 } 476 477 @Override 478 public void nowMasterBroker() { 479 super.nowMasterBroker(); 480 try { 481 ActiveMQTopic topic = AdvisorySupport.getMasterBrokerAdvisoryTopic(); 482 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 483 ConnectionContext context = new ConnectionContext(); 484 context.setSecurityContext(SecurityContext.BROKER_SECURITY_CONTEXT); 485 context.setBroker(getBrokerService().getBroker()); 486 fireAdvisory(context, topic, null, null, advisoryMessage); 487 } catch (Exception e) { 488 handleFireFailure("now master broker", e); 489 } 490 } 491 492 @Override 493 public boolean sendToDeadLetterQueue(ConnectionContext context, MessageReference messageReference, 494 Subscription subscription, Throwable poisonCause) { 495 boolean wasDLQd = super.sendToDeadLetterQueue(context, messageReference, subscription, poisonCause); 496 if (wasDLQd) { 497 try { 498 if (!messageReference.isAdvisory()) { 499 ActiveMQTopic topic = AdvisorySupport.getMessageDLQdAdvisoryTopic(messageReference.getMessage().getDestination()); 500 Message payload = messageReference.getMessage().copy(); 501 payload.clearBody(); 502 fireAdvisory(context, topic, payload); 503 } 504 } catch (Exception e) { 505 handleFireFailure("add to DLQ", e); 506 } 507 } 508 509 return wasDLQd; 510 } 511 512 @Override 513 public void networkBridgeStarted(BrokerInfo brokerInfo, boolean createdByDuplex, String remoteIp) { 514 try { 515 if (brokerInfo != null) { 516 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 517 advisoryMessage.setBooleanProperty("started", true); 518 advisoryMessage.setBooleanProperty("createdByDuplex", createdByDuplex); 519 advisoryMessage.setStringProperty("remoteIp", remoteIp); 520 networkBridges.putIfAbsent(brokerInfo, advisoryMessage); 521 522 ActiveMQTopic topic = AdvisorySupport.getNetworkBridgeAdvisoryTopic(); 523 524 ConnectionContext context = new ConnectionContext(); 525 context.setSecurityContext(SecurityContext.BROKER_SECURITY_CONTEXT); 526 context.setBroker(getBrokerService().getBroker()); 527 fireAdvisory(context, topic, brokerInfo, null, advisoryMessage); 528 } 529 } catch (Exception e) { 530 handleFireFailure("network bridge started", e); 531 } 532 } 533 534 @Override 535 public void networkBridgeStopped(BrokerInfo brokerInfo) { 536 try { 537 if (brokerInfo != null) { 538 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 539 advisoryMessage.setBooleanProperty("started", false); 540 networkBridges.remove(brokerInfo); 541 542 ActiveMQTopic topic = AdvisorySupport.getNetworkBridgeAdvisoryTopic(); 543 544 ConnectionContext context = new ConnectionContext(); 545 context.setSecurityContext(SecurityContext.BROKER_SECURITY_CONTEXT); 546 context.setBroker(getBrokerService().getBroker()); 547 fireAdvisory(context, topic, brokerInfo, null, advisoryMessage); 548 } 549 } catch (Exception e) { 550 handleFireFailure("network bridge stopped", e); 551 } 552 } 553 554 private void handleFireFailure(String message, Throwable cause) { 555 LOG.warn("Failed to fire {} advisory, reason: {}", message, cause); 556 LOG.debug("{} detail: {}", message, cause); 557 } 558 559 protected void fireAdvisory(ConnectionContext context, ActiveMQTopic topic, Command command) throws Exception { 560 fireAdvisory(context, topic, command, null); 561 } 562 563 protected void fireAdvisory(ConnectionContext context, ActiveMQTopic topic, Command command, ConsumerId targetConsumerId) throws Exception { 564 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 565 fireAdvisory(context, topic, command, targetConsumerId, advisoryMessage); 566 } 567 568 protected void fireConsumerAdvisory(ConnectionContext context, ActiveMQDestination consumerDestination, ActiveMQTopic topic, Command command) throws Exception { 569 fireConsumerAdvisory(context, consumerDestination, topic, command, null); 570 } 571 572 protected void fireConsumerAdvisory(ConnectionContext context, ActiveMQDestination consumerDestination, ActiveMQTopic topic, Command command, ConsumerId targetConsumerId) throws Exception { 573 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 574 int count = 0; 575 Set<Destination> set = getDestinations(consumerDestination); 576 if (set != null) { 577 for (Destination dest : set) { 578 count += dest.getDestinationStatistics().getConsumers().getCount(); 579 } 580 } 581 advisoryMessage.setIntProperty(AdvisorySupport.MSG_PROPERTY_CONSUMER_COUNT, count); 582 583 fireAdvisory(context, topic, command, targetConsumerId, advisoryMessage); 584 } 585 586 protected void fireProducerAdvisory(ConnectionContext context, ActiveMQDestination producerDestination, ActiveMQTopic topic, Command command) throws Exception { 587 fireProducerAdvisory(context, producerDestination, topic, command, null); 588 } 589 590 protected void fireProducerAdvisory(ConnectionContext context, ActiveMQDestination producerDestination, ActiveMQTopic topic, Command command, ConsumerId targetConsumerId) throws Exception { 591 ActiveMQMessage advisoryMessage = new ActiveMQMessage(); 592 int count = 0; 593 if (producerDestination != null) { 594 Set<Destination> set = getDestinations(producerDestination); 595 if (set != null) { 596 for (Destination dest : set) { 597 count += dest.getDestinationStatistics().getProducers().getCount(); 598 } 599 } 600 } 601 advisoryMessage.setIntProperty("producerCount", count); 602 fireAdvisory(context, topic, command, targetConsumerId, advisoryMessage); 603 } 604 605 public void fireAdvisory(ConnectionContext context, ActiveMQTopic topic, Command command, ConsumerId targetConsumerId, ActiveMQMessage advisoryMessage) throws Exception { 606 if (getBrokerService().isStarted()) { 607 //set properties 608 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_ORIGIN_BROKER_NAME, getBrokerName()); 609 String id = getBrokerId() != null ? getBrokerId().getValue() : "NOT_SET"; 610 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_ORIGIN_BROKER_ID, id); 611 612 String url = getBrokerService().getVmConnectorURI().toString(); 613 if (getBrokerService().getDefaultSocketURIString() != null) { 614 url = getBrokerService().getDefaultSocketURIString(); 615 } 616 advisoryMessage.setStringProperty(AdvisorySupport.MSG_PROPERTY_ORIGIN_BROKER_URL, url); 617 618 //set the data structure 619 advisoryMessage.setDataStructure(command); 620 advisoryMessage.setPersistent(false); 621 advisoryMessage.setType(AdvisorySupport.ADIVSORY_MESSAGE_TYPE); 622 advisoryMessage.setMessageId(new MessageId(advisoryProducerId, messageIdGenerator.getNextSequenceId())); 623 advisoryMessage.setTargetConsumerId(targetConsumerId); 624 advisoryMessage.setDestination(topic); 625 advisoryMessage.setResponseRequired(false); 626 advisoryMessage.setProducerId(advisoryProducerId); 627 boolean originalFlowControl = context.isProducerFlowControl(); 628 final ProducerBrokerExchange producerExchange = new ProducerBrokerExchange(); 629 producerExchange.setConnectionContext(context); 630 producerExchange.setMutable(true); 631 producerExchange.setProducerState(new ProducerState(new ProducerInfo())); 632 try { 633 context.setProducerFlowControl(false); 634 next.send(producerExchange, advisoryMessage); 635 } finally { 636 context.setProducerFlowControl(originalFlowControl); 637 } 638 } 639 } 640 641 public Map<ConnectionId, ConnectionInfo> getAdvisoryConnections() { 642 return connections; 643 } 644 645 public Collection<ConsumerInfo> getAdvisoryConsumers() { 646 consumersLock.readLock().lock(); 647 try { 648 return new ArrayList<ConsumerInfo>(consumers.values()); 649 } finally { 650 consumersLock.readLock().unlock(); 651 } 652 } 653 654 public Map<ProducerId, ProducerInfo> getAdvisoryProducers() { 655 return producers; 656 } 657 658 public Map<ActiveMQDestination, DestinationInfo> getAdvisoryDestinations() { 659 return destinations; 660 } 661}