InversionOfControl/Castle.MicroKernel/SubSystems/Conversion/Converters/EnumConverter.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.MicroKernel.SubSystems.Conversion
  16 {
  17         using System;
  18
  19         using Castle.Core.Configuration;
  20
  21         /// <summary>
  22         /// Converts a string representation to an enum value
  23         /// </summary>
  24         [Serializable]
  25         public class EnumConverter : AbstractTypeConverter
  26         {
  27                 public override bool CanHandleType(Type type)
  28                 {
  29                         return type.IsEnum;
  30                 }
  31
  32                 public override object PerformConversion(String value, Type targetType)
  33                 {
  34                         try
  35                         {
  36                                 return Enum.Parse( targetType, value, true );
  37                         }
  38                         catch(ConverterException)
  39                         {
  40                                 throw;
  41                         }
  42                         catch(Exception ex)
  43                         {
  44                                 String message = String.Format(
  45                                         "Could not convert from '{0}' to {1}.",
  46                                         value, targetType.FullName);
  47
  48                                 throw new ConverterException(message, ex);
  49                         }
  50                 }
  51
  52                 public override object PerformConversion(IConfiguration configuration, Type targetType)
  53                 {
  54                         return PerformConversion(configuration.Value, targetType);
  55                 }
  56         }
  57 }