/**
*
* Copyright 2004 Protique Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**/
package org.codehaus.activemq.store.vm;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.codehaus.activemq.message.ActiveMQMessage;
import org.codehaus.activemq.message.MessageAck;
import org.codehaus.activemq.service.MessageIdentity;
import org.codehaus.activemq.service.QueueMessageContainer;
import org.codehaus.activemq.store.MessageStore;
import javax.jms.JMSException;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* An implementation of {@link org.codehaus.activemq.store.MessageStore} which uses a
*
* @version $Revision: 1.5 $
*/
public class VMMessageStore implements MessageStore {
private static final Log log = LogFactory.getLog(VMMessageStore.class);
protected Map messageTable;
protected MessageIdentity lastMessageIdentity;
public VMMessageStore() {
this(new LinkedHashMap());
}
public VMMessageStore(LinkedHashMap messageTable) {
this.messageTable = Collections.synchronizedMap(messageTable);
}
public synchronized void addMessage(ActiveMQMessage message) throws JMSException {
messageTable.put(message.getJMSMessageID(), message);
lastMessageIdentity = message.getJMSMessageIdentity();
}
public ActiveMQMessage getMessage(MessageIdentity identity) throws JMSException {
String messageID = identity.getMessageID();
return (ActiveMQMessage) messageTable.get(messageID);
}
public void removeMessage(MessageAck ack) throws JMSException {
messageTable.remove(ack.getMessageID());
}
public void removeMessage(MessageIdentity msgId) throws JMSException {
messageTable.remove(msgId.getMessageID());
}
public void recover(QueueMessageContainer container) throws JMSException {
for (Iterator iter = messageTable.values().iterator(); iter.hasNext();) {
ActiveMQMessage msg = (ActiveMQMessage) iter.next();
container.recoverMessageToBeDelivered(msg.getJMSMessageIdentity());
}
}
public void start() throws JMSException {
}
public void stop() throws JMSException {
}
public void removeAllMessages() throws JMSException {
messageTable.clear();
}
}