Facilities/EnterpriseLibrary/Castle.Facilities.EnterpriseLibrary.Configuration/EnterpriseConfigurationFacility.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.Facilities.EnterpriseLibrary.Configuration
  16 {
  17         using System;
  18
  19         using Castle.Core;
  20
  21         using Castle.MicroKernel;
  22         using Castle.MicroKernel.Facilities;
  23         using Castle.MicroKernel.ModelBuilder;
  24         using Castle.MicroKernel.ComponentActivator;
  25
  26         using Microsoft.Practices.EnterpriseLibrary.Configuration;
  27
  28
  29         public class EnterpriseConfigurationFacility : AbstractFacility
  30         {
  31                 protected override void Init()
  32                 {
  33                         Kernel.ComponentModelBuilder.AddContributor( new EntLibConfigurationInspector() );
  34                 }
  35         }
  36
  37         internal class EntLibConfigurationInspector : IContributeComponentModelConstruction
  38         {
  39                 public void ProcessModel(IKernel kernel, ComponentModel model)
  40                 {
  41                         if (model.Configuration == null) return;
  42
  43                         String configKey = model.Configuration.Attributes["configurationkey"];
  44
  45                         if (configKey == null) return;
  46
  47                         model.ExtendedProperties["configurationkey"] = configKey;
  48                         model.CustomComponentActivator = typeof(EntLibComponentActivator);
  49                 }
  50         }
  51
  52         internal class EntLibComponentActivator : AbstractComponentActivator
  53         {
  54                 public EntLibComponentActivator(ComponentModel model, IKernel kernel,
  55                         ComponentInstanceDelegate onCreation, ComponentInstanceDelegate onDestruction) : base(model, kernel, onCreation, onDestruction)
  56                 {
  57                 }
  58
  59                 protected override object InternalCreate()
  60                 {
  61                         String configKey = (String) Model.ExtendedProperties["configurationkey"];
  62
  63                         return ConfigurationManager.GetConfiguration(configKey);
  64                 }
  65
  66                 protected override void InternalDestroy(object instance)
  67                 {
  68                         String configKey = (String) Model.ExtendedProperties["configurationkey"];
  69
  70                         ConfigurationManager.WriteConfiguration(configKey, instance);
  71                 }
  72         }
  73 }