#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>
/// Translates from one exception to another based. My wrap or replace exception depending on the expression.
/// </summary>
/// <author>Mark Pollack</author>
public class TranslationExceptionHandler : AbstractExceptionHandler
{
/// <summary>
/// Initializes a new instance of the <see cref="TranslationExceptionHandler"/> class.
/// </summary>
public TranslationExceptionHandler()
{
}
/// <summary>
/// Initializes a new instance of the <see cref="TranslationExceptionHandler"/> class.
/// </summary>
/// <param name="exceptionNames">The exception names.</param>
public TranslationExceptionHandler(string[] exceptionNames) : base(exceptionNames)
{
}
/// <summary>
/// Handles the exception.
/// </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 o = null;
try {
IExpression expression = Expression.Parse(ActionExpressionText);
o = expression.GetValue(null, callContextDictionary);
}
catch (Exception e)
{
log.Warn("Was not able to evaluate action expression [" + ActionExpressionText + "]", e);
}
Exception translatedException = o as Exception;
if (translatedException != null)
{
ThrowTranslatedException(translatedException);
}
return null;
}
private void ThrowTranslatedException(Exception exception)
{
throw exception;
}
}
}
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