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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.framing.AMQShortString;
import org.apache.qpid.framing.FieldTable;
import org.apache.qpid.server.configuration.QueueConfiguration;
import org.apache.qpid.server.virtualhost.VirtualHost;
import java.util.Map;
public class AMQQueueFactory
{
public static final AMQShortString X_QPID_PRIORITIES = new AMQShortString("x-qpid-priorities");
private abstract static class QueueProperty
{
private final AMQShortString _argumentName;
public QueueProperty(String argumentName)
{
_argumentName = new AMQShortString(argumentName);
}
public AMQShortString getArgumentName()
{
return _argumentName;
}
public abstract void setPropertyValue(AMQQueue queue, Object value);
}
private abstract static class QueueLongProperty extends QueueProperty
{
public QueueLongProperty(String argumentName)
{
super(argumentName);
}
public void setPropertyValue(AMQQueue queue, Object value)
{
if(value instanceof Number)
{
setPropertyValue(queue, ((Number)value).longValue());
}
}
abstract void setPropertyValue(AMQQueue queue, long value);
}
private static final QueueProperty[] DECLAREABLE_PROPERTIES = {
new QueueLongProperty("x-qpid-maximum-message-age")
{
public void setPropertyValue(AMQQueue queue, long value)
{
queue.setMaximumMessageAge(value);
}
},
new QueueLongProperty("x-qpid-maximum-message-size")
{
public void setPropertyValue(AMQQueue queue, long value)
{
queue.setMaximumMessageSize(value);
}
},
new QueueLongProperty("x-qpid-maximum-message-count")
{
public void setPropertyValue(AMQQueue queue, long value)
{
queue.setMaximumMessageCount(value);
}
},
new QueueLongProperty("x-qpid-minimum-alert-repeat-gap")
{
public void setPropertyValue(AMQQueue queue, long value)
{
queue.setMinimumAlertRepeatGap(value);
}
},
new QueueLongProperty("x-qpid-capacity")
{
public void setPropertyValue(AMQQueue queue, long value)
{
queue.setCapacity(value);
}
},
new QueueLongProperty("x-qpid-flow-resume-capacity")
{
public void setPropertyValue(AMQQueue queue, long value)
{
queue.setFlowResumeCapacity(value);
}
}
};
public static AMQQueue createAMQQueueImpl(AMQShortString name,
boolean durable,
AMQShortString owner,
boolean autoDelete,
VirtualHost virtualHost, final FieldTable arguments)
{
final int priorities = arguments == null ? 1 : arguments.containsKey(X_QPID_PRIORITIES) ? arguments.getInteger(X_QPID_PRIORITIES) : 1;
AMQQueue q = null;
if(priorities > 1)
{
q = new AMQPriorityQueue(name, durable, owner, autoDelete, virtualHost, priorities);
}
else
{
q = new SimpleAMQQueue(name, durable, owner, autoDelete, virtualHost);
}
//Register the new queue
virtualHost.getQueueRegistry().registerQueue(q);
q.configure(virtualHost.getConfiguration().getQueueConfiguration(name.asString()));
if(arguments != null)
{
for(QueueProperty p : DECLAREABLE_PROPERTIES)
{
if(arguments.containsKey(p.getArgumentName()))
{
p.setPropertyValue(q, arguments.get(p.getArgumentName()));
}
}
}
return q;
}
public static AMQQueue createAMQQueueImpl(QueueConfiguration config, VirtualHost host) throws AMQException
{
AMQShortString queueName = new AMQShortString(config.getName());
boolean durable = config.getDurable();
boolean autodelete = config.getAutoDelete();
AMQShortString owner = (config.getOwner() != null) ? new AMQShortString(config.getOwner()) : null;
FieldTable arguments = null;
boolean priority = config.getPriority();
int priorities = config.getPriorities();
if(priority || priorities > 0)
{
if(arguments == null)
{
arguments = new FieldTable();
}
if (priorities < 0)
{
priorities = 10;
}
arguments.put(new AMQShortString("x-qpid-priorities"), priorities);
}
AMQQueue q = createAMQQueueImpl(queueName, durable, owner, autodelete, host, arguments);
q.configure(config);
return q;
}
public static AMQQueue createAMQQueueImpl(String queueName,
boolean durable,
String owner,
boolean autoDelete,
VirtualHost virtualHost, Map<String, Object> arguments)
throws AMQException
{
int priorities = 1;
if(arguments != null && arguments.containsKey(X_QPID_PRIORITIES))
{
Object prioritiesObj = arguments.get(X_QPID_PRIORITIES);
if(prioritiesObj instanceof Number)
{
priorities = ((Number)prioritiesObj).intValue();
}
}
AMQQueue q = null;
if(priorities > 1)
{
q = new AMQPriorityQueue(queueName, durable, owner, autoDelete, virtualHost, priorities);
}
else
{
q = new SimpleAMQQueue(queueName, durable, owner, autoDelete, virtualHost);
}
//Register the new queue
virtualHost.getQueueRegistry().registerQueue(q);
q.configure(virtualHost.getConfiguration().getQueueConfiguration(queueName));
return q;
}
}
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