1
0

ServiceBase.cs 4.3 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114
  1. /*
  2. * Copyright (c) Contributors, http://opensimulator.org/
  3. * See CONTRIBUTORS.TXT for a full list of copyright holders.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. * * Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * * Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. * * Neither the name of the OpenSimulator Project nor the
  13. * names of its contributors may be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
  17. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19. * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
  20. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26. */
  27. using System;
  28. using System.Collections.Generic;
  29. using System.Reflection;
  30. using log4net;
  31. using Nini.Config;
  32. using OpenSim.Services.Interfaces;
  33. namespace OpenSim.Services.Base
  34. {
  35. public class ServiceBase
  36. {
  37. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  38. public T LoadPlugin<T>(string dllName) where T:class
  39. {
  40. return LoadPlugin<T>(dllName, new Object[0]);
  41. }
  42. public T LoadPlugin<T>(string dllName, Object[] args) where T:class
  43. {
  44. string[] parts = dllName.Split(new char[] {':'});
  45. dllName = parts[0];
  46. string className = String.Empty;
  47. if (parts.Length > 1)
  48. className = parts[1];
  49. return LoadPlugin<T>(dllName, className, args);
  50. }
  51. public T LoadPlugin<T>(string dllName, string className, Object[] args) where T:class
  52. {
  53. string interfaceName = typeof(T).ToString();
  54. try
  55. {
  56. Assembly pluginAssembly = Assembly.LoadFrom(dllName);
  57. // m_log.DebugFormat("[SERVICE BASE]: Found assembly {0}", dllName);
  58. foreach (Type pluginType in pluginAssembly.GetTypes())
  59. {
  60. // m_log.DebugFormat("[SERVICE BASE]: Found type {0}", pluginType);
  61. if (pluginType.IsPublic)
  62. {
  63. if (className != String.Empty &&
  64. pluginType.ToString() !=
  65. pluginType.Namespace + "." + className)
  66. continue;
  67. Type typeInterface =
  68. pluginType.GetInterface(interfaceName, true);
  69. if (typeInterface != null)
  70. {
  71. T plug = (T)Activator.CreateInstance(pluginType,
  72. args);
  73. return plug;
  74. }
  75. }
  76. }
  77. return null;
  78. }
  79. catch (Exception e)
  80. {
  81. List<string> strArgs = new List<string>();
  82. foreach (Object arg in args)
  83. strArgs.Add(arg.ToString());
  84. m_log.Error(
  85. string.Format(
  86. "[SERVICE BASE]: Failed to load plugin {0} from {1} with args {2}",
  87. interfaceName, dllName, string.Join(", ", strArgs.ToArray())), e);
  88. return null;
  89. }
  90. }
  91. public ServiceBase(IConfigSource config)
  92. {
  93. }
  94. }
  95. }