blob: 6bffa961ef5d268204ef816efaebf6275616899d [file] [log] [blame]
/*
* 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.
*/
using System;
using Apache.NMS;
using Apache.NMS.Util;
namespace Apache.NMS.Stomp
{
/// <summary>
/// Class used to define the various limits that should be used for the Prefetch
/// limit on destination based on the type of Destination in use.
/// </summary>
public class PrefetchPolicy : ICloneable
{
public const int MAX_PREFETCH_SIZE = Int16.MaxValue - 1;
public const int DEFAULT_QUEUE_PREFETCH = 1000;
public const int DEFAULT_QUEUE_BROWSER_PREFETCH = 500;
public const int DEFAULT_DURABLE_TOPIC_PREFETCH = 100;
public const int DEFAULT_TOPIC_PREFETCH = MAX_PREFETCH_SIZE;
private int queuePrefetch;
private int queueBrowserPrefetch;
private int topicPrefetch;
private int durableTopicPrefetch;
private int maximumPendingMessageLimit;
public PrefetchPolicy()
{
this.queuePrefetch = DEFAULT_QUEUE_PREFETCH;
this.queueBrowserPrefetch = DEFAULT_QUEUE_BROWSER_PREFETCH;
this.topicPrefetch = DEFAULT_TOPIC_PREFETCH;
this.durableTopicPrefetch = DEFAULT_DURABLE_TOPIC_PREFETCH;
}
public int QueuePrefetch
{
get { return this.queuePrefetch; }
set { this.queuePrefetch = RestrictToMaximum(value); }
}
public int QueueBrowserPrefetch
{
get { return this.queueBrowserPrefetch; }
set { this.queueBrowserPrefetch = RestrictToMaximum(value); }
}
public int TopicPrefetch
{
get { return this.topicPrefetch; }
set { this.topicPrefetch = RestrictToMaximum(value); }
}
public int DurableTopicPrefetch
{
get { return this.durableTopicPrefetch; }
set { this.durableTopicPrefetch = RestrictToMaximum(value); }
}
public int MaximumPendingMessageLimit
{
get { return this.maximumPendingMessageLimit; }
set { this.maximumPendingMessageLimit = value; }
}
public void SetAll(int value)
{
this.queuePrefetch = value;
this.queueBrowserPrefetch = value;
this.topicPrefetch = value;
this.durableTopicPrefetch = value;
}
private int RestrictToMaximum(int value)
{
return System.Math.Min(value, MAX_PREFETCH_SIZE);
}
public Object Clone()
{
return this.MemberwiseClone();
}
}
}