#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.Reflection;
using System.Text.RegularExpressions;
using Spring.Core;
using Spring.Util;
#endregion
namespace Spring.Core{
/// <summary>
/// Criteria that is satisfied if the <c>Name</c> property of an
/// <see cref="System.Reflection.EventInfo"/> instance matches a
/// supplied regular expression pattern.
/// </summary>
/// <author>Rick Evans</author>
public class RegularExpressionEventNameCriteria : RegularExpressionCriteria
{
#region Constants
/// <summary>
/// The default event name pattern... matches pretty much any event name.
/// </summary>
private const string MatchAnyEventNamePattern = ".+";
#endregion
#region Constructor (s) / Destructor
/// <summary>
/// Creates a new instance of the
/// <see cref="RegularExpressionEventNameCriteria"/> class.
/// </summary>
public RegularExpressionEventNameCriteria()
: this(RegularExpressionEventNameCriteria.MatchAnyEventNamePattern)
{
Options = RegexOptions.IgnoreCase;
}
/// <summary>
/// Creates a new instance of the
/// <see cref="RegularExpressionEventNameCriteria"/> class.
/// </summary>
/// <param name="eventNamePattern">
/// The pattern that <see cref="System.Reflection.EventInfo"/> names
/// must match against in order to satisfy this criteria.
/// </param>
public RegularExpressionEventNameCriteria(string eventNamePattern)
{
Options = RegexOptions.IgnoreCase;
Pattern = StringUtils.HasText(eventNamePattern) ?
eventNamePattern : RegularExpressionEventNameCriteria.MatchAnyEventNamePattern;
}
#endregion
#region Methods
/// <summary>
/// Does the supplied <paramref name="datum"/> satisfy the criteria encapsulated by
/// this instance?
/// </summary>
/// <param name="datum">The datum to be checked by this criteria instance.</param>
/// <returns>
/// True if the supplied <paramref name="datum"/> satisfies the criteria encapsulated
/// by this instance; false if not or the supplied <paramref name="datum"/> is null.
/// </returns>
public override bool IsSatisfied(object datum)
{
bool satisfied = false;
EventInfo evt = datum as EventInfo;
if (evt != null)
{
satisfied = IsMatch(evt.Name);
}
return satisfied;
}
#endregion
}
}
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