AssetService.cs 7.2 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.Collections.Generic;
  29. using System.IO;
  30. using System.Reflection;
  31. using Nini.Config;
  32. using log4net;
  33. using OpenSim.Framework;
  34. using OpenSim.Data;
  35. using OpenSim.Services.Interfaces;
  36. using OpenMetaverse;
  37. namespace OpenSim.Services.AssetService
  38. {
  39. public class AssetService : AssetServiceBase, IAssetService
  40. {
  41. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  42. protected static AssetService m_RootInstance;
  43. public AssetService(IConfigSource config)
  44. : this(config, "AssetService")
  45. {
  46. }
  47. public AssetService(IConfigSource config, string configName) : base(config, configName)
  48. {
  49. if (m_RootInstance == null)
  50. {
  51. m_RootInstance = this;
  52. if (m_AssetLoader != null)
  53. {
  54. IConfig assetConfig = config.Configs[m_ConfigName];
  55. if (assetConfig == null)
  56. throw new Exception("No " + m_ConfigName + " configuration");
  57. string loaderArgs = assetConfig.GetString("AssetLoaderArgs",
  58. String.Empty);
  59. bool assetLoaderEnabled = assetConfig.GetBoolean("AssetLoaderEnabled", true);
  60. if (assetLoaderEnabled)
  61. {
  62. m_log.DebugFormat("[ASSET SERVICE]: Loading default asset set from {0}", loaderArgs);
  63. m_AssetLoader.ForEachDefaultXmlAsset(
  64. loaderArgs,
  65. delegate(AssetBase a)
  66. {
  67. AssetBase existingAsset = Get(a.ID);
  68. // AssetMetadata existingMetadata = GetMetadata(a.ID);
  69. if (existingAsset == null || Util.SHA1Hash(existingAsset.Data) != Util.SHA1Hash(a.Data))
  70. {
  71. // m_log.DebugFormat("[ASSET]: Storing {0} {1}", a.Name, a.ID);
  72. m_Database.StoreAsset(a);
  73. }
  74. });
  75. }
  76. m_log.Debug("[ASSET SERVICE]: Local asset service enabled");
  77. }
  78. }
  79. }
  80. public virtual AssetBase Get(string id)
  81. {
  82. // m_log.DebugFormat("[ASSET SERVICE]: Get asset for {0}", id);
  83. UUID assetID;
  84. if (!UUID.TryParse(id, out assetID))
  85. {
  86. m_log.WarnFormat("[ASSET SERVICE]: Could not parse requested asset id {0}", id);
  87. return null;
  88. }
  89. try
  90. {
  91. return m_Database.GetAsset(assetID);
  92. }
  93. catch (Exception e)
  94. {
  95. m_log.ErrorFormat("[ASSET SERVICE]: Exception getting asset {0} {1}", assetID, e);
  96. return null;
  97. }
  98. }
  99. public AssetBase Get(string id, string ForeignAssetService, bool dummy)
  100. {
  101. return null;
  102. }
  103. public virtual AssetBase GetCached(string id)
  104. {
  105. return Get(id);
  106. }
  107. public virtual AssetMetadata GetMetadata(string id)
  108. {
  109. // m_log.DebugFormat("[ASSET SERVICE]: Get asset metadata for {0}", id);
  110. AssetBase asset = Get(id);
  111. if (asset != null)
  112. return asset.Metadata;
  113. else
  114. return null;
  115. }
  116. public virtual byte[] GetData(string id)
  117. {
  118. // m_log.DebugFormat("[ASSET SERVICE]: Get asset data for {0}", id);
  119. AssetBase asset = Get(id);
  120. if (asset != null)
  121. return asset.Data;
  122. else
  123. return null;
  124. }
  125. public virtual bool Get(string id, Object sender, AssetRetrieved handler)
  126. {
  127. //m_log.DebugFormat("[AssetService]: Get asset async {0}", id);
  128. handler(id, sender, Get(id));
  129. return true;
  130. }
  131. public virtual bool[] AssetsExist(string[] ids)
  132. {
  133. try
  134. {
  135. UUID[] uuid = Array.ConvertAll(ids, id => UUID.Parse(id));
  136. return m_Database.AssetsExist(uuid);
  137. }
  138. catch (Exception e)
  139. {
  140. m_log.Error("[ASSET SERVICE]: Exception getting assets ", e);
  141. return new bool[ids.Length];
  142. }
  143. }
  144. public virtual string Store(AssetBase asset)
  145. {
  146. bool exists = m_Database.AssetsExist(new[] { asset.FullID })[0];
  147. if (!exists)
  148. {
  149. // m_log.DebugFormat(
  150. // "[ASSET SERVICE]: Storing asset {0} {1}, bytes {2}", asset.Name, asset.FullID, asset.Data.Length);
  151. if (!m_Database.StoreAsset(asset))
  152. {
  153. return UUID.Zero.ToString();
  154. }
  155. }
  156. // else
  157. // {
  158. // m_log.DebugFormat(
  159. // "[ASSET SERVICE]: Not storing asset {0} {1}, bytes {2} as it already exists", asset.Name, asset.FullID, asset.Data.Length);
  160. // }
  161. return asset.ID;
  162. }
  163. public bool UpdateContent(string id, byte[] data)
  164. {
  165. return false;
  166. }
  167. public virtual bool Delete(string id)
  168. {
  169. // m_log.DebugFormat("[ASSET SERVICE]: Deleting asset {0}", id);
  170. UUID assetID;
  171. if (!UUID.TryParse(id, out assetID))
  172. return false;
  173. return m_Database.Delete(id);
  174. }
  175. }
  176. }