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.store;
018    
019    import java.io.IOException;
020    import java.util.concurrent.Future;
021    import org.apache.activemq.broker.ConnectionContext;
022    import org.apache.activemq.command.ActiveMQDestination;
023    import org.apache.activemq.command.Message;
024    import org.apache.activemq.command.MessageAck;
025    import org.apache.activemq.command.MessageId;
026    import org.apache.activemq.command.SubscriptionInfo;
027    import org.apache.activemq.usage.MemoryUsage;
028    
029    /**
030     * A simple proxy that delegates to another MessageStore.
031     */
032    public class ProxyTopicMessageStore implements TopicMessageStore {
033    
034        final TopicMessageStore delegate;
035    
036        public ProxyTopicMessageStore(TopicMessageStore delegate) {
037            this.delegate = delegate;
038        }
039    
040        public MessageStore getDelegate() {
041            return delegate;
042        }
043    
044        public void addMessage(ConnectionContext context, Message message) throws IOException {
045            delegate.addMessage(context, message);
046        }
047    
048        public Message getMessage(MessageId identity) throws IOException {
049            return delegate.getMessage(identity);
050        }
051    
052        public void recover(MessageRecoveryListener listener) throws Exception {
053            delegate.recover(listener);
054        }
055    
056        public void removeAllMessages(ConnectionContext context) throws IOException {
057            delegate.removeAllMessages(context);
058        }
059    
060        public void removeMessage(ConnectionContext context, MessageAck ack) throws IOException {
061            delegate.removeMessage(context, ack);
062        }
063    
064        public void start() throws Exception {
065            delegate.start();
066        }
067    
068        public void stop() throws Exception {
069            delegate.stop();
070        }
071    
072        public SubscriptionInfo lookupSubscription(String clientId, String subscriptionName) throws IOException {
073            return delegate.lookupSubscription(clientId, subscriptionName);
074        }
075    
076        public void acknowledge(ConnectionContext context, String clientId, String subscriptionName,
077                                MessageId messageId, MessageAck ack) throws IOException {
078            delegate.acknowledge(context, clientId, subscriptionName, messageId, ack);
079        }
080    
081        public void addSubsciption(SubscriptionInfo subscriptionInfo, boolean retroactive) throws IOException {
082            delegate.addSubsciption(subscriptionInfo, retroactive);
083        }
084    
085        public void deleteSubscription(String clientId, String subscriptionName) throws IOException {
086            delegate.deleteSubscription(clientId, subscriptionName);
087        }
088    
089        public void recoverSubscription(String clientId, String subscriptionName, MessageRecoveryListener listener)
090            throws Exception {
091            delegate.recoverSubscription(clientId, subscriptionName, listener);
092        }
093    
094        public void recoverNextMessages(String clientId, String subscriptionName, int maxReturned,
095                                        MessageRecoveryListener listener) throws Exception {
096            delegate.recoverNextMessages(clientId, subscriptionName, maxReturned, listener);
097        }
098    
099        public void resetBatching(String clientId, String subscriptionName) {
100            delegate.resetBatching(clientId, subscriptionName);
101        }
102    
103        public ActiveMQDestination getDestination() {
104            return delegate.getDestination();
105        }
106    
107        public SubscriptionInfo[] getAllSubscriptions() throws IOException {
108            return delegate.getAllSubscriptions();
109        }
110    
111        public void setMemoryUsage(MemoryUsage memoryUsage) {
112            delegate.setMemoryUsage(memoryUsage);
113        }
114    
115        public int getMessageCount(String clientId, String subscriberName) throws IOException {
116            return delegate.getMessageCount(clientId, subscriberName);
117        }
118    
119        public int getMessageCount() throws IOException {
120            return delegate.getMessageCount();
121        }
122    
123        public void recoverNextMessages(int maxReturned, MessageRecoveryListener listener) throws Exception {
124            delegate.recoverNextMessages(maxReturned, listener);
125    
126        }
127    
128        public void dispose(ConnectionContext context) {
129            delegate.dispose(context);
130        }
131    
132        public void resetBatching() {
133            delegate.resetBatching();
134    
135        }
136    
137        public void setBatch(MessageId messageId) throws Exception {
138            delegate.setBatch(messageId);
139        }
140        
141        public boolean isEmpty() throws Exception {
142            return delegate.isEmpty();
143         }
144    
145        public Future<Object> asyncAddTopicMessage(ConnectionContext context, Message message) throws IOException {
146            return delegate.asyncAddTopicMessage(context, message);
147         }
148    
149        public Future<Object> asyncAddQueueMessage(ConnectionContext context, Message message) throws IOException {
150            return delegate.asyncAddQueueMessage(context, message);
151        }
152    
153        public void removeAsyncMessage(ConnectionContext context, MessageAck ack) throws IOException {
154            delegate.removeAsyncMessage(context, ack);
155        }
156    
157        public void setPrioritizedMessages(boolean prioritizedMessages) {
158            delegate.setPrioritizedMessages(prioritizedMessages);
159        }
160        
161        public boolean isPrioritizedMessages() {
162            return delegate.isPrioritizedMessages();
163        }
164    }