| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.activemq.broker.region; |
| |
| import org.apache.activemq.command.ConsumerId; |
| import org.apache.activemq.command.Message; |
| import org.apache.activemq.command.MessageId; |
| |
| /** |
| * Keeps track of a message that is flowing through the Broker. This object may |
| * hold a hard reference to the message or only hold the id of the message if |
| * the message has been persisted on in a MessageStore. |
| * |
| * |
| */ |
| public class IndirectMessageReference implements QueueMessageReference { |
| |
| /** The subscription that has locked the message */ |
| private LockOwner lockOwner; |
| /** Has the message been dropped? */ |
| private boolean dropped; |
| /** Has the message been acked? */ |
| private boolean acked; |
| /** Direct reference to the message */ |
| private final Message message; |
| |
| /** |
| * @param message |
| */ |
| public IndirectMessageReference(final Message message) { |
| this.message = message; |
| message.getMessageId(); |
| message.getGroupID(); |
| message.getGroupSequence(); |
| } |
| |
| public Message getMessageHardRef() { |
| return message; |
| } |
| |
| public int getReferenceCount() { |
| return message.getReferenceCount(); |
| } |
| |
| public int incrementReferenceCount() { |
| return message.incrementReferenceCount(); |
| } |
| |
| public int decrementReferenceCount() { |
| return message.decrementReferenceCount(); |
| } |
| |
| public Message getMessage() { |
| return message; |
| } |
| |
| public String toString() { |
| return "Message " + message.getMessageId() + " dropped=" + dropped + " acked=" + acked + " locked=" + (lockOwner != null); |
| } |
| |
| public void incrementRedeliveryCounter() { |
| message.incrementRedeliveryCounter(); |
| } |
| |
| public synchronized boolean isDropped() { |
| return dropped; |
| } |
| |
| public synchronized void drop() { |
| dropped = true; |
| lockOwner = null; |
| message.decrementReferenceCount(); |
| } |
| |
| public boolean lock(LockOwner subscription) { |
| synchronized (this) { |
| if (dropped || lockOwner != null) { |
| return false; |
| } |
| lockOwner = subscription; |
| return true; |
| } |
| } |
| |
| public synchronized boolean unlock() { |
| boolean result = lockOwner != null; |
| lockOwner = null; |
| return result; |
| } |
| |
| public synchronized LockOwner getLockOwner() { |
| return lockOwner; |
| } |
| |
| public int getRedeliveryCounter() { |
| return message.getRedeliveryCounter(); |
| } |
| |
| public MessageId getMessageId() { |
| return message.getMessageId(); |
| } |
| |
| public Destination getRegionDestination() { |
| return message.getRegionDestination(); |
| } |
| |
| public boolean isPersistent() { |
| return message.isPersistent(); |
| } |
| |
| public synchronized boolean isLocked() { |
| return lockOwner != null; |
| } |
| |
| public synchronized boolean isAcked() { |
| return acked; |
| } |
| |
| public synchronized void setAcked(boolean b) { |
| acked = b; |
| } |
| |
| public String getGroupID() { |
| return message.getGroupID(); |
| } |
| |
| public int getGroupSequence() { |
| return message.getGroupSequence(); |
| } |
| |
| public ConsumerId getTargetConsumerId() { |
| return message.getTargetConsumerId(); |
| } |
| |
| public long getExpiration() { |
| return message.getExpiration(); |
| } |
| |
| public boolean isExpired() { |
| return message.isExpired(); |
| } |
| |
| public synchronized int getSize() { |
| return message.getSize(); |
| } |
| |
| public boolean isAdvisory() { |
| return message.isAdvisory(); |
| } |
| } |