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