#region License
/*
* Copyright 2002-2007 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 System.Collections;
using Common.Logging;
using Spring.Expressions;
namespace Spring.Aspects.Exceptions{
/// <summary>
/// Evaluates the expression for the return value of the method.
/// </summary>
/// <author>Mark Pollack</author>
public class ReturnValueExceptionHandler : AbstractExceptionHandler
{
/// <summary>
/// Initializes a new instance of the <see cref="ReturnValueExceptionHandler"/> class.
/// </summary>
public ReturnValueExceptionHandler()
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ReturnValueExceptionHandler"/> class.
/// </summary>
/// <param name="exceptionNames">The exception names.</param>
public ReturnValueExceptionHandler(string[] exceptionNames) : base(exceptionNames)
{
}
/// <summary>
/// Returns the result of evaluating the translation expression.
/// </summary>
/// <returns>The return value from handling the exception, if not rethrown or a new exception is thrown.</returns>
public override object HandleException(IDictionary callContextDictionary)
{
object returnVal = null;
try
{
IExpression expression = Expression.Parse(ActionExpressionText);
returnVal = expression.GetValue(null, callContextDictionary);
}
catch (Exception e)
{
log.Warn("Was not able to evaluate action expression [" + ActionExpressionText + "]", e);
}
return returnVal;
}
}
}
|