ScriptEngineLoader.cs 4.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119
  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. /* Original code: Tedd Hansen */
  28. using System;
  29. using System.IO;
  30. using System.Reflection;
  31. using log4net;
  32. namespace OpenSim.Region.Framework.Scenes.Scripting
  33. {
  34. public class ScriptEngineLoader
  35. {
  36. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  37. public ScriptEngineInterface LoadScriptEngine(string EngineName)
  38. {
  39. ScriptEngineInterface ret = null;
  40. try
  41. {
  42. ret =
  43. LoadAndInitAssembly(
  44. Path.Combine("ScriptEngines", "OpenSim.Region.ScriptEngine." + EngineName + ".dll"),
  45. "OpenSim.Region.ScriptEngine." + EngineName + ".ScriptEngine");
  46. }
  47. catch (Exception e)
  48. {
  49. m_log.Error("[ScriptEngine]: " +
  50. "Error loading assembly \"" + EngineName + "\": " + e.Message + ", " +
  51. e.StackTrace.ToString());
  52. }
  53. return ret;
  54. }
  55. /// <summary>
  56. /// Does actual loading and initialization of script Assembly
  57. /// </summary>
  58. /// <param name="FreeAppDomain">AppDomain to load script into</param>
  59. /// <param name="FileName">FileName of script assembly (.dll)</param>
  60. /// <returns></returns>
  61. private ScriptEngineInterface LoadAndInitAssembly(string FileName, string NameSpace)
  62. {
  63. //Common.SendToDebug("Loading ScriptEngine Assembly " + FileName);
  64. // Load .Net Assembly (.dll)
  65. // Initialize and return it
  66. // TODO: Add error handling
  67. Assembly a;
  68. //try
  69. //{
  70. // Load to default appdomain (temporary)
  71. a = Assembly.LoadFrom(FileName);
  72. // Load to specified appdomain
  73. // TODO: Insert security
  74. //a = FreeAppDomain.Load(FileName);
  75. //}
  76. //catch (Exception e)
  77. //{
  78. // m_log.Error("[ScriptEngine]: Error loading assembly \String.Empty + FileName + "\": " + e.ToString());
  79. //}
  80. //m_log.Debug("Loading: " + FileName);
  81. //foreach (Type _t in a.GetTypes())
  82. //{
  83. // m_log.Debug("Type: " + _t.ToString());
  84. //}
  85. Type t;
  86. //try
  87. //{
  88. t = a.GetType(NameSpace, true);
  89. //}
  90. //catch (Exception e)
  91. //{
  92. // m_log.Error("[ScriptEngine]: Error initializing type \String.Empty + NameSpace + "\" from \String.Empty + FileName + "\": " + e.ToString());
  93. //}
  94. ScriptEngineInterface ret;
  95. //try
  96. //{
  97. ret = (ScriptEngineInterface) Activator.CreateInstance(t);
  98. //}
  99. //catch (Exception e)
  100. //{
  101. // m_log.Error("[ScriptEngine]: Error initializing type \String.Empty + NameSpace + "\" from \String.Empty + FileName + "\": " + e.ToString());
  102. //}
  103. return ret;
  104. }
  105. }
  106. }