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.broker; 018 019import java.net.URI; 020import java.util.Map; 021import java.util.Set; 022import java.util.concurrent.ThreadPoolExecutor; 023import java.util.concurrent.atomic.AtomicReference; 024 025import org.apache.activemq.broker.region.Destination; 026import org.apache.activemq.broker.region.MessageReference; 027import org.apache.activemq.broker.region.Subscription; 028import org.apache.activemq.command.ActiveMQDestination; 029import org.apache.activemq.command.BrokerId; 030import org.apache.activemq.command.BrokerInfo; 031import org.apache.activemq.command.ConnectionInfo; 032import org.apache.activemq.command.ConsumerControl; 033import org.apache.activemq.command.ConsumerInfo; 034import org.apache.activemq.command.DestinationInfo; 035import org.apache.activemq.command.Message; 036import org.apache.activemq.command.MessageAck; 037import org.apache.activemq.command.MessageDispatch; 038import org.apache.activemq.command.MessageDispatchNotification; 039import org.apache.activemq.command.MessagePull; 040import org.apache.activemq.command.ProducerInfo; 041import org.apache.activemq.command.RemoveSubscriptionInfo; 042import org.apache.activemq.command.Response; 043import org.apache.activemq.command.SessionInfo; 044import org.apache.activemq.command.TransactionId; 045import org.apache.activemq.store.PListStore; 046import org.apache.activemq.thread.Scheduler; 047import org.apache.activemq.usage.Usage; 048 049/** 050 * Like a BrokerFilter but it allows you to switch the getNext().broker. This 051 * has more overhead than a BrokerFilter since access to the getNext().broker 052 * has to synchronized since it is mutable 053 * 054 * 055 */ 056public class MutableBrokerFilter implements Broker { 057 058 protected AtomicReference<Broker> next = new AtomicReference<Broker>(); 059 060 public MutableBrokerFilter(Broker next) { 061 this.next.set(next); 062 } 063 064 @Override 065 public Broker getAdaptor(Class type) { 066 if (type.isInstance(this)) { 067 return this; 068 } 069 return next.get().getAdaptor(type); 070 } 071 072 public Broker getNext() { 073 return next.get(); 074 } 075 076 public void setNext(Broker next) { 077 this.next.set(next); 078 } 079 080 @Override 081 public Map<ActiveMQDestination, Destination> getDestinationMap() { 082 return getNext().getDestinationMap(); 083 } 084 085 @Override 086 public Map<ActiveMQDestination, Destination> getDestinationMap(ActiveMQDestination destination) { 087 return getNext().getDestinationMap(destination); 088 } 089 090 @Override 091 public Set getDestinations(ActiveMQDestination destination) { 092 return getNext().getDestinations(destination); 093 } 094 095 @Override 096 public void acknowledge(ConsumerBrokerExchange consumerExchange, MessageAck ack) throws Exception { 097 getNext().acknowledge(consumerExchange, ack); 098 } 099 100 @Override 101 public void addConnection(ConnectionContext context, ConnectionInfo info) throws Exception { 102 getNext().addConnection(context, info); 103 } 104 105 @Override 106 public Subscription addConsumer(ConnectionContext context, ConsumerInfo info) throws Exception { 107 return getNext().addConsumer(context, info); 108 } 109 110 @Override 111 public void addProducer(ConnectionContext context, ProducerInfo info) throws Exception { 112 getNext().addProducer(context, info); 113 } 114 115 @Override 116 public void commitTransaction(ConnectionContext context, TransactionId xid, boolean onePhase) throws Exception { 117 getNext().commitTransaction(context, xid, onePhase); 118 } 119 120 @Override 121 public void removeSubscription(ConnectionContext context, RemoveSubscriptionInfo info) throws Exception { 122 getNext().removeSubscription(context, info); 123 } 124 125 @Override 126 public TransactionId[] getPreparedTransactions(ConnectionContext context) throws Exception { 127 return getNext().getPreparedTransactions(context); 128 } 129 130 @Override 131 public int prepareTransaction(ConnectionContext context, TransactionId xid) throws Exception { 132 return getNext().prepareTransaction(context, xid); 133 } 134 135 @Override 136 public void removeConnection(ConnectionContext context, ConnectionInfo info, Throwable error) throws Exception { 137 getNext().removeConnection(context, info, error); 138 } 139 140 @Override 141 public void removeConsumer(ConnectionContext context, ConsumerInfo info) throws Exception { 142 getNext().removeConsumer(context, info); 143 } 144 145 @Override 146 public void removeProducer(ConnectionContext context, ProducerInfo info) throws Exception { 147 getNext().removeProducer(context, info); 148 } 149 150 @Override 151 public void rollbackTransaction(ConnectionContext context, TransactionId xid) throws Exception { 152 getNext().rollbackTransaction(context, xid); 153 } 154 155 @Override 156 public void send(ProducerBrokerExchange producerExchange, Message messageSend) throws Exception { 157 getNext().send(producerExchange, messageSend); 158 } 159 160 @Override 161 public void beginTransaction(ConnectionContext context, TransactionId xid) throws Exception { 162 getNext().beginTransaction(context, xid); 163 } 164 165 @Override 166 public void forgetTransaction(ConnectionContext context, TransactionId transactionId) throws Exception { 167 getNext().forgetTransaction(context, transactionId); 168 } 169 170 @Override 171 public Connection[] getClients() throws Exception { 172 return getNext().getClients(); 173 } 174 175 @Override 176 public Destination addDestination(ConnectionContext context, ActiveMQDestination destination,boolean createIfTemporary) throws Exception { 177 return getNext().addDestination(context, destination,createIfTemporary); 178 } 179 180 @Override 181 public void removeDestination(ConnectionContext context, ActiveMQDestination destination, long timeout) throws Exception { 182 getNext().removeDestination(context, destination, timeout); 183 } 184 185 @Override 186 public ActiveMQDestination[] getDestinations() throws Exception { 187 return getNext().getDestinations(); 188 } 189 190 @Override 191 public void start() throws Exception { 192 getNext().start(); 193 } 194 195 @Override 196 public void stop() throws Exception { 197 getNext().stop(); 198 } 199 200 @Override 201 public void addSession(ConnectionContext context, SessionInfo info) throws Exception { 202 getNext().addSession(context, info); 203 } 204 205 @Override 206 public void removeSession(ConnectionContext context, SessionInfo info) throws Exception { 207 getNext().removeSession(context, info); 208 } 209 210 @Override 211 public BrokerId getBrokerId() { 212 return getNext().getBrokerId(); 213 } 214 215 @Override 216 public String getBrokerName() { 217 return getNext().getBrokerName(); 218 } 219 220 @Override 221 public void gc() { 222 getNext().gc(); 223 } 224 225 @Override 226 public void addBroker(Connection connection, BrokerInfo info) { 227 getNext().addBroker(connection, info); 228 } 229 230 @Override 231 public void removeBroker(Connection connection, BrokerInfo info) { 232 getNext().removeBroker(connection, info); 233 } 234 235 @Override 236 public BrokerInfo[] getPeerBrokerInfos() { 237 return getNext().getPeerBrokerInfos(); 238 } 239 240 @Override 241 public void preProcessDispatch(MessageDispatch messageDispatch) { 242 getNext().preProcessDispatch(messageDispatch); 243 } 244 245 @Override 246 public void postProcessDispatch(MessageDispatch messageDispatch) { 247 getNext().postProcessDispatch(messageDispatch); 248 } 249 250 @Override 251 public void processDispatchNotification(MessageDispatchNotification messageDispatchNotification) throws Exception { 252 getNext().processDispatchNotification(messageDispatchNotification); 253 } 254 255 @Override 256 public boolean isStopped() { 257 return getNext().isStopped(); 258 } 259 260 @Override 261 public Set<ActiveMQDestination> getDurableDestinations() { 262 return getNext().getDurableDestinations(); 263 } 264 265 @Override 266 public void addDestinationInfo(ConnectionContext context, DestinationInfo info) throws Exception { 267 getNext().addDestinationInfo(context, info); 268 269 } 270 271 @Override 272 public void removeDestinationInfo(ConnectionContext context, DestinationInfo info) throws Exception { 273 getNext().removeDestinationInfo(context, info); 274 275 } 276 277 @Override 278 public boolean isFaultTolerantConfiguration() { 279 return getNext().isFaultTolerantConfiguration(); 280 } 281 282 @Override 283 public ConnectionContext getAdminConnectionContext() { 284 return getNext().getAdminConnectionContext(); 285 } 286 287 @Override 288 public void setAdminConnectionContext(ConnectionContext adminConnectionContext) { 289 getNext().setAdminConnectionContext(adminConnectionContext); 290 } 291 292 @Override 293 public Response messagePull(ConnectionContext context, MessagePull pull) throws Exception { 294 return getNext().messagePull(context, pull); 295 } 296 297 @Override 298 public PListStore getTempDataStore() { 299 return getNext().getTempDataStore(); 300 } 301 302 @Override 303 public URI getVmConnectorURI() { 304 return getNext().getVmConnectorURI(); 305 } 306 307 @Override 308 public void brokerServiceStarted() { 309 getNext().brokerServiceStarted(); 310 } 311 312 @Override 313 public BrokerService getBrokerService() { 314 return getNext().getBrokerService(); 315 } 316 317 @Override 318 public boolean isExpired(MessageReference messageReference) { 319 return getNext().isExpired(messageReference); 320 } 321 322 @Override 323 public void messageExpired(ConnectionContext context, MessageReference message, Subscription subscription) { 324 getNext().messageExpired(context, message, subscription); 325 } 326 327 @Override 328 public boolean sendToDeadLetterQueue(ConnectionContext context, MessageReference messageReference, 329 Subscription subscription, Throwable poisonCause) { 330 return getNext().sendToDeadLetterQueue(context, messageReference, subscription, poisonCause); 331 } 332 333 @Override 334 public Broker getRoot() { 335 return getNext().getRoot(); 336 } 337 338 @Override 339 public long getBrokerSequenceId() { 340 return getNext().getBrokerSequenceId(); 341 } 342 343 @Override 344 public void fastProducer(ConnectionContext context,ProducerInfo producerInfo,ActiveMQDestination destination) { 345 getNext().fastProducer(context, producerInfo, destination); 346 } 347 348 @Override 349 public void isFull(ConnectionContext context,Destination destination, Usage usage) { 350 getNext().isFull(context,destination, usage); 351 } 352 353 @Override 354 public void messageConsumed(ConnectionContext context,MessageReference messageReference) { 355 getNext().messageConsumed(context, messageReference); 356 } 357 358 @Override 359 public void messageDelivered(ConnectionContext context,MessageReference messageReference) { 360 getNext().messageDelivered(context, messageReference); 361 } 362 363 @Override 364 public void messageDiscarded(ConnectionContext context, Subscription sub, MessageReference messageReference) { 365 getNext().messageDiscarded(context, sub, messageReference); 366 } 367 368 @Override 369 public void slowConsumer(ConnectionContext context, Destination dest, Subscription subs) { 370 getNext().slowConsumer(context, dest,subs); 371 } 372 373 @Override 374 public void nowMasterBroker() { 375 getNext().nowMasterBroker(); 376 } 377 378 @Override 379 public void processConsumerControl(ConsumerBrokerExchange consumerExchange, 380 ConsumerControl control) { 381 getNext().processConsumerControl(consumerExchange, control); 382 } 383 384 @Override 385 public void reapplyInterceptor() { 386 getNext().reapplyInterceptor(); 387 } 388 389 @Override 390 public Scheduler getScheduler() { 391 return getNext().getScheduler(); 392 } 393 394 @Override 395 public ThreadPoolExecutor getExecutor() { 396 return getNext().getExecutor(); 397 } 398 399 @Override 400 public void networkBridgeStarted(BrokerInfo brokerInfo, boolean createdByDuplex, String remoteIp) { 401 getNext().networkBridgeStarted(brokerInfo, createdByDuplex, remoteIp); 402 } 403 404 @Override 405 public void networkBridgeStopped(BrokerInfo brokerInfo) { 406 getNext().networkBridgeStopped(brokerInfo); 407 } 408}