#region License
/*
* Copyright 2002-2005 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
#region Imports
using System;
using Common.Logging;
using Spring.Aop.Target;
using Spring.Objects.Factory;
using Spring.Objects.Factory.Support;
#endregion
namespace Spring.Aop.Framework.AutoProxy.Target{
/// <summary>
/// Summary description for AbstractPrototypeBasedTargetSourceCreator.
/// </summary>
public abstract class AbstractPrototypeTargetSourceCreator : ITargetSourceCreator
{
/// <summary>
/// The logger
/// </summary>
protected readonly ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
#region ITargetSourceCreator Members
/// <summary>
/// Create a special TargetSource for the given object, if any.
/// </summary>
/// <param name="objectType">the type of the object to create a TargetSource for</param>
/// <param name="name">the name of the object</param>
/// <param name="factory">the containing factory</param>
/// <returns>
/// a special TargetSource or null if this TargetSourceCreator isn't
/// interested in the particular object
/// </returns>
public ITargetSource GetTargetSource(Type objectType, string name, IObjectFactory factory)
{
AbstractPrototypeTargetSource prototypeTargetSource = CreatePrototypeTargetSource(objectType, name, factory);
if (prototypeTargetSource == null)
{
return null;
}
else
{
if (!(factory is IObjectDefinitionRegistry))
{
if (logger.IsWarnEnabled)
logger.Warn("Cannot do autopooling with a IObjectFactory that doesn't implement IObjectDefinitionRegistry");
return null;
}
IObjectDefinitionRegistry definitionRegistry = (IObjectDefinitionRegistry) factory;
RootObjectDefinition definition = (RootObjectDefinition) definitionRegistry.GetObjectDefinition(name);
if (logger.IsInfoEnabled)
logger.Info("Configuring AbstractPrototypeBasedTargetSource...");
// Infinite cycle will result if we don't use a different factory,
// because a GetObject() call with this objectName will go through the autoproxy
// infrastructure again.
// We to override just this object definition, as it may reference other objects
// and we're happy to take the parent's definition for those.
DefaultListableObjectFactory objectFactory = new DefaultListableObjectFactory(factory);
// Override the prototype object
objectFactory.RegisterObjectDefinition(name, definition);
// Complete configuring the PrototypeTargetSource
prototypeTargetSource.TargetObjectName = name;
prototypeTargetSource.ObjectFactory = objectFactory;
return prototypeTargetSource;
}
}
#endregion
/// <summary>
/// Creates the prototype target source.
/// </summary>
/// <param name="objectType">The type of the object to create a target source for.</param>
/// <param name="name">The name.</param>
/// <param name="factory">The factory.</param>
/// <returns></returns>
protected abstract AbstractPrototypeTargetSource CreatePrototypeTargetSource(Type objectType, string name,
IObjectFactory factory);
}
}
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