#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 System.Reflection;
#endregion
namespace Spring.Aop.Support{
/// <summary>
/// A <see cref="Spring.Aop.IPointcut"/> union.
/// </summary>
/// <remarks>
/// <p>
/// Such pointcut unions are tricky, because one cannot simply <c>OR</c>
/// the respective <see cref="Spring.Aop.IMethodMatcher"/>s: one has to
/// ascertain that each <see cref="Spring.Aop.IMethodMatcher"/>'s
/// <see cref="Spring.Aop.IPointcut.TypeFilter"/> is also satisfied.
/// </p>
/// </remarks>
/// <author>Rod Johnson</author>
/// <author>Aleksandar Seovic (.NET)</author>
[Serializable]
internal class UnionPointcut : IPointcut
{
private IPointcut a;
private IPointcut b;
private IMethodMatcher mm;
/// <summary>
/// Creates a new instance of the
/// <see cref="Spring.Aop.Support.UnionPointcut"/> class.
/// </summary>
/// <param name="firstPointcut">The first pointcut.</param>
/// <param name="secondPointcut">The second pointcut.</param>
public UnionPointcut(IPointcut firstPointcut, IPointcut secondPointcut)
{
this.a = firstPointcut;
this.b = secondPointcut;
this.mm = new PointcutUnionMethodMatcher(this);
}
/// <summary>
/// The <see cref="Spring.Aop.ITypeFilter"/> for this pointcut.
/// </summary>
/// <value>
/// The current <see cref="Spring.Aop.ITypeFilter"/>.
/// </value>
public ITypeFilter TypeFilter
{
get { return TypeFilters.Union(a.TypeFilter, b.TypeFilter); }
}
/// <summary>
/// The <see cref="Spring.Aop.IMethodMatcher"/> for this pointcut.
/// </summary>
/// <value>
/// The current <see cref="Spring.Aop.IMethodMatcher"/>.
/// </value>
public IMethodMatcher MethodMatcher
{
get { return mm; }
}
/// <summary>
/// Internal method matcher class for union pointcut.
/// </summary>
[Serializable]
private sealed class PointcutUnionMethodMatcher : IMethodMatcher
{
private UnionPointcut _enclosingInstance;
public PointcutUnionMethodMatcher(UnionPointcut enclosingInstance)
{
this._enclosingInstance = enclosingInstance;
}
public bool IsRuntime
{
get
{
return _enclosingInstance.a.MethodMatcher.IsRuntime
|| _enclosingInstance.b.MethodMatcher.IsRuntime;
}
}
public bool Matches(MethodInfo method, Type targetType)
{
return (_enclosingInstance.a.TypeFilter.Matches(targetType)
&& _enclosingInstance.a.MethodMatcher.Matches(method, targetType))
|| (_enclosingInstance.b.TypeFilter.Matches(targetType)
&& _enclosingInstance.b.MethodMatcher.Matches(method, targetType));
}
public bool Matches(MethodInfo method, Type targetType, object[] args)
{
// 2-arg matcher will already have run, so we don't need to do type filtering again...
return _enclosingInstance.a.MethodMatcher.Matches(method, targetType, args)
|| _enclosingInstance.b.MethodMatcher.Matches(method, targetType, args);
}
}
}
}
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