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, String remoteIp) {
327 getNext().networkBridgeStarted(brokerInfo, createdByDuplex, remoteIp);
328 }
329
330 public void networkBridgeStopped(BrokerInfo brokerInfo) {
331 getNext().networkBridgeStopped(brokerInfo);
332 }
333 }