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