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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.protocol.AMQConstant;
import org.apache.qpid.server.configuration.QueueConfiguration;
import org.apache.qpid.server.virtualhost.VirtualHost;
public class AMQQueueFactory
{
public static final AMQShortString X_QPID_PRIORITIES = new AMQShortString("x-qpid-priorities");
public static final AMQShortString QPID_MAX_COUNT = new AMQShortString("qpid.max_count");
public static final AMQShortString QPID_MAX_SIZE = new AMQShortString("qpid.max_size");
public static final AMQShortString QPID_POLICY_TYPE = new AMQShortString("qpid.policy_type");
public static final String QPID_FLOW_TO_DISK = "flow_to_disk";
public static AMQQueue createAMQQueueImpl(AMQShortString name,
boolean durable,
AMQShortString owner,
boolean autoDelete,
VirtualHost virtualHost, final FieldTable arguments)
throws AMQException
{
int priorities = 1;
if (arguments != null && arguments.containsKey(X_QPID_PRIORITIES))
{
Integer priority = arguments.getInteger(X_QPID_PRIORITIES);
if (priority != null)
{
priorities = priority.intValue();
}
else
{
throw new AMQException(AMQConstant.INVALID_ARGUMENT,
"Queue create request with non integer value for :" + X_QPID_PRIORITIES + "=" + arguments.get(X_QPID_PRIORITIES), null);
}
}
AMQQueue q = null;
if (priorities > 1)
{
q = new AMQPriorityQueue(name, durable, owner, autoDelete, virtualHost, priorities);
}
else
{
q = new SimpleAMQQueue(name, durable, owner, autoDelete, virtualHost);
}
final String queuePolicyType = arguments == null ? null :
arguments.containsKey(QPID_POLICY_TYPE) ? arguments.getString(QPID_POLICY_TYPE) : null;
if (queuePolicyType != null)
{
if (queuePolicyType.equals(QPID_FLOW_TO_DISK))
{
if (arguments.containsKey(QPID_MAX_SIZE))
{
final long queueSize = arguments.getInteger(QPID_MAX_SIZE);
if (queueSize < 0)
{
throw new AMQException(AMQConstant.INVALID_ARGUMENT,
"Queue create request with negative size:" + queueSize, null);
}
q.setMemoryUsageMaximum(queueSize);
}
else
{
throw new AMQException(AMQConstant.INVALID_ARGUMENT,
"Queue create request with no qpid.max_size value,", null);
}
}
else
{
throw new AMQException(AMQConstant.NOT_IMPLEMENTED,
"Queue create request with unknown Policy Type:" + queuePolicyType, null);
}
}
//Register the new queue
virtualHost.getQueueRegistry().registerQueue(q);
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.setMaximumMessageAge(config.getMaximumMessageAge());
q.setMaximumQueueDepth(config.getMaximumQueueDepth());
q.setMaximumMessageSize(config.getMaximumMessageSize());
q.setMaximumMessageCount(config.getMaximumMessageCount());
q.setMinimumAlertRepeatGap(config.getMinimumAlertRepeatGap());
q.setMemoryUsageMaximum(config.getMemoryUsageMaximum());
q.setMemoryUsageMinimum(config.getMemoryUsageMinimum());
return q;
}
}
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