#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 AopAlliance.Intercept;
#endregion
namespace Spring.Aop.Advice{
/// <summary>
/// Convenience <see cref="AopAlliance.Intercept.IMethodInterceptor"/>
/// implementation that displays verbose information about intercepted
/// invocations to the system console.
/// </summary>
/// <remarks>
/// <p>
/// Can be introduced into an interceptor chain to serve as a useful low
/// level debugging aid.
/// </p>
/// </remarks>
/// <author>Rod Johnson</author>
/// <author>Federico Spinazzi (.NET)</author>
/// <author>Aleksandar Seovic (.NET)</author>
/// <seealso cref="System.Console"/>
public sealed class DebugAdvice : IMethodInterceptor
{
private int _count;
/// <summary>
/// Gets the count of the number of times this interceptor has been
/// invoked.
/// </summary>
/// <returns>
/// The count of the number of times this interceptor has been invoked.
/// </returns>
public int Count
{
get { return _count; }
}
/// <summary>
/// Displays verbose information about intercepted invocations to the
/// system console.
/// </summary>
/// <param name="invocation">
/// The method invocation that is being intercepted.
/// </param>
/// <returns>
/// The result of the call to the
/// <see cref="AopAlliance.Intercept.IJoinpoint.Proceed"/> method of
/// the supplied <paramref name="invocation"/>; this return value may
/// well have been intercepted by the interceptor.
/// </returns>
/// <exception cref="System.Exception">
/// If any of the interceptors in the chain or the target object itself
/// throws an exception.
/// </exception>
/// <seealso cref="System.Console"/>
/// <seealso cref="AopAlliance.Intercept.IMethodInterceptor.Invoke(IMethodInvocation)"/>
public object Invoke(IMethodInvocation invocation)
{
++_count;
Console.Out.WriteLine("{0} [count={1}, invocation='{2}']",
typeof(DebugAdvice).Name, _count, invocation);
object returnValue = invocation.Proceed();
Console.Out.WriteLine("{0} ['{1}' invocation returned '{2}']",
typeof(DebugAdvice).Name, invocation.Method.Name, returnValue);
return returnValue;
}
}
}
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