#region License
/*
* Copyright 2002-2008 the original author or authors.
*
* Licensed 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.
*/
#endregion
using System;
using Apache.NMS;
namespace Spring.Messaging.Nms.Connections{
/// <summary>
/// MessageProducer decorator that adapts calls to a shared MessageProducer
/// instance underneath, managing QoS settings locally within the decorator.
/// </summary>
/// <author>Juergen Hoeller</author>
/// <author>Mark Pollack (.NET)</author>
public class CachedMessageProducer : IMessageProducer
{
private readonly IMessageProducer target;
private object originalDisableMessageID = null;
private object originalDisableMessageTimestamp = null;
private MsgDeliveryMode msgDeliveryMode;
private MsgPriority priority;
private TimeSpan timeToLive;
private TimeSpan requestTimeout;
/// <summary>
/// Initializes a new instance of the <see cref="CachedMessageProducer"/> class.
/// </summary>
/// <param name="target">The target.</param>
public CachedMessageProducer(IMessageProducer target)
{
this.target = target;
this.msgDeliveryMode = target.DeliveryMode;
this.priority = target.Priority;
this.timeToLive = target.TimeToLive;
}
/// <summary>
/// Gets the target MessageProducer, the producer we are 'wrapping'
/// </summary>
/// <value>The target MessageProducer.</value>
public IMessageProducer Target
{
get { return target; }
}
/// <summary>
/// Sends the specified message.
/// </summary>
/// <param name="message">The message.</param>
public void Send(IMessage message)
{
target.Send(message);
}
/// <summary>
/// Sends a message to the specified message.
/// </summary>
/// <param name="message">The message to send.</param>
/// <param name="deliveryMode">The QOS to use for sending <see cref="msgDeliveryMode"/>.</param>
/// <param name="priority">The message priority.</param>
/// <param name="timeToLive">The time to live.</param>
public void Send(IMessage message, MsgDeliveryMode deliveryMode, MsgPriority priority, TimeSpan timeToLive)
{
target.Send(message, deliveryMode, priority, timeToLive);
}
/// <summary>
/// Sends a message to the specified destination.
/// </summary>
/// <param name="destination">The destination.</param>
/// <param name="message">The message.</param>
public void Send(IDestination destination, IMessage message)
{
target.Send(destination, message);
}
/// <summary>
/// Sends a message the specified destination.
/// </summary>
/// <param name="destination">The destination.</param>
/// <param name="message">The message to send.</param>
/// <param name="deliveryMode">The QOS to use for sending <see cref="msgDeliveryMode"/>.</param>
/// <param name="priority">The priority.</param>
/// <param name="timeToLive">The time to live.</param>
public void Send(IDestination destination, IMessage message, MsgDeliveryMode deliveryMode, MsgPriority priority, TimeSpan timeToLive)
{
target.Send(destination, message, deliveryMode, priority, timeToLive);
}
#region Odd Message Creationg Methods on IMessageProducer - not in-line with JMS APIs.
/// <summary>
/// Creates the message.
/// </summary>
/// <returns>A new message</returns>
public IMessage CreateMessage()
{
return target.CreateMessage();
}
/// <summary>
/// Creates the text message.
/// </summary>
/// <returns>A new text message.</returns>
public ITextMessage CreateTextMessage()
{
return target.CreateTextMessage();
}
/// <summary>
/// Creates the text message.
/// </summary>
/// <param name="text">The text.</param>
/// <returns>A texst message with the given text.</returns>
public ITextMessage CreateTextMessage(string text)
{
return target.CreateTextMessage(text);
}
/// <summary>
/// Creates the map message.
/// </summary>
/// <returns>a new map message.</returns>
public IMapMessage CreateMapMessage()
{
return target.CreateMapMessage();
}
/// <summary>
/// Creates the object message.
/// </summary>
/// <param name="body">The body.</param>
/// <returns>A new object message with the given body.</returns>
public IObjectMessage CreateObjectMessage(object body)
{
return target.CreateObjectMessage(body);
}
/// <summary>
/// Creates the bytes message.
/// </summary>
/// <returns>A new bytes message.</returns>
public IBytesMessage CreateBytesMessage()
{
return target.CreateBytesMessage();
}
/// <summary>
/// Creates the bytes message.
/// </summary>
/// <param name="body">The body.</param>
/// <returns>A new bytes message with the given body.</returns>
public IBytesMessage CreateBytesMessage(byte[] body)
{
return target.CreateBytesMessage(body);
}
#endregion
/// <summary>
/// Gets or sets a value indicating what DeliveryMode this <see cref="CachedMessageProducer"/>
/// should use, for example a persistent QOS
/// </summary>
/// <value><see cref="MsgDeliveryMode"/></value>
public MsgDeliveryMode DeliveryMode
{
get { return msgDeliveryMode; }
set { msgDeliveryMode = value; }
}
/// <summary>
/// Gets or sets the time to live value for messages sent with this producer.
/// </summary>
/// <value>The time to live.</value>
public TimeSpan TimeToLive
{
get { return timeToLive; }
set { timeToLive = value; }
}
/// <summary>
/// Gets or sets the request timeout for the message producer.
/// </summary>
/// <value>The request timeout.</value>
public TimeSpan RequestTimeout
{
get { return requestTimeout; }
set { requestTimeout = value; }
}
/// <summary>
/// Gets or sets the priority of messages sent with this producer.
/// </summary>
/// <value>The priority.</value>
public MsgPriority Priority
{
get { return priority; }
set { priority = value;}
}
/// <summary>
/// Gets or sets a value indicating whether disable setting of the message ID property.
/// </summary>
/// <value><c>true</c> if disable message ID setting; otherwise, <c>false</c>.</value>
public bool DisableMessageID
{
get
{
return target.DisableMessageID;
}
set
{
if (originalDisableMessageID == null)
{
originalDisableMessageID = target.DisableMessageID;
}
target.DisableMessageID = value;
}
}
/// <summary>
/// Gets or sets a value indicating whether disable setting the message timestamp property.
/// </summary>
/// <value>
/// <c>true</c> if disable message timestamp; otherwise, <c>false</c>.
/// </value>
public bool DisableMessageTimestamp
{
get
{
return target.DisableMessageTimestamp;
}
set
{
if (originalDisableMessageTimestamp == null)
{
originalDisableMessageTimestamp = target.DisableMessageTimestamp;
}
target.DisableMessageTimestamp = value;
}
}
/// <summary>
/// Reset properties.
/// </summary>
public void Close()
{
// It's a cached MessageProducer... reset properties only.
if (originalDisableMessageID != null)
{
target.DisableMessageID = (bool) originalDisableMessageID;
originalDisableMessageID = null;
}
if (originalDisableMessageTimestamp != null)
{
target.DisableMessageTimestamp = (bool) originalDisableMessageTimestamp;
originalDisableMessageTimestamp = null;
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
target.Dispose();
}
/// <summary>
/// Returns string indicated this is a wrapped MessageProducer
/// </summary>
/// <returns></returns>
public override string ToString()
{
return "Cached NMS MessageProducer: " + this.target;
}
}
}
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