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/*
* 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.qpid.server.queue;
import org.apache.qpid.AMQException;
import org.apache.qpid.server.message.ServerMessage;
import org.apache.qpid.server.virtualhost.VirtualHost;
import java.util.Map;
public class SortedQueue extends OutOfOrderQueue
{
//Lock object to synchronize enqueue. Used instead of the object
//monitor to prevent lock order issues with subscription sendLocks
//and consumer updates in the super classes
private final Object _sortedQueueLock = new Object();
private final String _sortedPropertyName;
protected SortedQueue(final String name, final boolean durable,
final String owner, final boolean autoDelete, final boolean exclusive,
final VirtualHost virtualHost, Map<String, Object> arguments, String sortedPropertyName)
{
super(name, durable, owner, autoDelete, exclusive, virtualHost,
new SortedQueueEntryListFactory(sortedPropertyName), arguments);
this._sortedPropertyName = sortedPropertyName;
}
public String getSortedPropertyName()
{
return _sortedPropertyName;
}
public void enqueue(ServerMessage message, PostEnqueueAction action) throws AMQException
{
synchronized (_sortedQueueLock)
{
super.enqueue(message, action);
}
}
}
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