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XAssetServiceBase.cs 4.9 KB

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  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.Reflection;
  29. using log4net;
  30. using Nini.Config;
  31. using OpenSim.Framework;
  32. using OpenSim.Data;
  33. using OpenSim.Server.Base;
  34. using OpenSim.Services.Interfaces;
  35. using OpenSim.Services.Base;
  36. namespace OpenSim.Services.AssetService
  37. {
  38. public class XAssetServiceBase : ServiceBase
  39. {
  40. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  41. protected IXAssetDataPlugin m_Database;
  42. protected IAssetLoader m_AssetLoader;
  43. protected IAssetService m_ChainedAssetService;
  44. protected bool HasChainedAssetService { get { return m_ChainedAssetService != null; } }
  45. public XAssetServiceBase(IConfigSource config, string configName) : base(config)
  46. {
  47. string dllName = String.Empty;
  48. string connString = String.Empty;
  49. //
  50. // Try reading the [AssetService] section first, if it exists
  51. //
  52. IConfig assetConfig = config.Configs[configName];
  53. if (assetConfig != null)
  54. {
  55. dllName = assetConfig.GetString("StorageProvider", dllName);
  56. connString = assetConfig.GetString("ConnectionString", connString);
  57. }
  58. //
  59. // Try reading the [DatabaseService] section, if it exists
  60. //
  61. IConfig dbConfig = config.Configs["DatabaseService"];
  62. if (dbConfig != null)
  63. {
  64. if (dllName == String.Empty)
  65. dllName = dbConfig.GetString("StorageProvider", String.Empty);
  66. if (connString == String.Empty)
  67. connString = dbConfig.GetString("ConnectionString", String.Empty);
  68. }
  69. //
  70. // We tried, but this doesn't exist. We can't proceed.
  71. //
  72. if (dllName.Equals(String.Empty))
  73. throw new Exception("No StorageProvider configured");
  74. m_Database = LoadPlugin<IXAssetDataPlugin>(dllName);
  75. if (m_Database == null)
  76. throw new Exception("Could not find a storage interface in the given module");
  77. string chainedAssetServiceDesignator = assetConfig.GetString("ChainedServiceModule", null);
  78. if (chainedAssetServiceDesignator != null)
  79. {
  80. m_log.InfoFormat(
  81. "[XASSET SERVICE BASE]: Loading chained asset service from {0}", chainedAssetServiceDesignator);
  82. Object[] args = new Object[] { config, configName };
  83. m_ChainedAssetService = ServerUtils.LoadPlugin<IAssetService>(chainedAssetServiceDesignator, args);
  84. if (!HasChainedAssetService)
  85. throw new Exception(
  86. String.Format("Failed to load ChainedAssetService from {0}", chainedAssetServiceDesignator));
  87. }
  88. m_Database.Initialise(connString);
  89. if (HasChainedAssetService)
  90. {
  91. string loaderName = assetConfig.GetString("DefaultAssetLoader",
  92. String.Empty);
  93. if (loaderName != String.Empty)
  94. {
  95. m_AssetLoader = LoadPlugin<IAssetLoader>(loaderName);
  96. if (m_AssetLoader == null)
  97. throw new Exception("Asset loader could not be loaded");
  98. }
  99. }
  100. }
  101. }
  102. }