mcs/nunit24/ClientUtilities/util/Services/ServiceManager.cs

   1 // ****************************************************************\r
   2 // Copyright 2007, Charlie Poole\r
   3 // This is free software licensed under the NUnit license. You may\r
   4 // obtain a copy of the license at http://nunit.org/?p=license&r=2.4\r
   5 // ****************************************************************\r
   6 \r
   7 using System;\r
   8 using System.Collections;\r
   9 using NUnit.Core;\r
  10 \r
  11 namespace NUnit.Util\r
  12 {\r
  13         /// <summary>\r
  14         /// Summary description for ServiceManger.\r
  15         /// </summary>\r
  16         public class ServiceManager\r
  17         {\r
  18                 private ArrayList services = new ArrayList();\r
  19                 private Hashtable serviceIndex = new Hashtable();\r
  20 \r
  21                 private static ServiceManager defaultServiceManager = new ServiceManager();\r
  22 \r
  23                 public static ServiceManager Services\r
  24                 {\r
  25                         get { return defaultServiceManager; }\r
  26                 }\r
  27 \r
  28                 public void AddService( IService service )\r
  29                 {\r
  30                         services.Add( service );\r
  31                         NTrace.Debug( "Added " + service.GetType().Name );\r
  32                 }\r
  33 \r
  34                 public IService GetService( Type serviceType )\r
  35                 {\r
  36                         IService theService = (IService)serviceIndex[serviceType];\r
  37                         if ( theService == null )\r
  38                                 foreach( IService service in services )\r
  39                                 {\r
  40                                         // TODO: Does this work on Mono?\r
  41                                         if( serviceType.IsInstanceOfType( service ) )\r
  42                                         {\r
  43                                                 serviceIndex[serviceType] = service;\r
  44                                                 theService = service;\r
  45                                                 break;\r
  46                                         }\r
  47                                 }\r
  48 \r
  49                         if ( theService == null )\r
  50                                 NTrace.Error( string.Format( "Requested service {0} was not found", serviceType.FullName ) );\r
  51                         else\r
  52                                 NTrace.Info( string.Format( "Request for service {0} satisfied by {1}", serviceType.Name, theService.GetType().Name ) );\r
  53                         \r
  54                         return theService;\r
  55                 }\r
  56 \r
  57                 public void InitializeServices()\r
  58                 {\r
  59                         foreach( IService service in services )\r
  60                         {\r
  61                                 NTrace.Info( "Initializing " + service.GetType().Name );\r
  62                                 service.InitializeService();\r
  63                         }\r
  64                 }\r
  65 \r
  66                 public void StopAllServices()\r
  67                 {\r
  68                         // Stop services in reverse of initialization order\r
  69                         // TODO: Deal with dependencies explicitly\r
  70                         int index = services.Count;\r
  71                         while( --index >= 0 )\r
  72                                 ((IService)services[index]).UnloadService();\r
  73                 }\r
  74 \r
  75                 public void ClearServices()\r
  76                 {\r
  77                         services.Clear();\r
  78                 }\r
  79 \r
  80                 private ServiceManager() { }\r
  81         }\r
  82 }\r