UserAccountCache.cs 3.7 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 System.Collections.Generic;
  30. using OpenSim.Framework;
  31. using OpenSim.Services.Interfaces;
  32. using OpenMetaverse;
  33. using log4net;
  34. namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.UserAccounts
  35. {
  36. public class UserAccountCache
  37. {
  38. private const double CACHE_EXPIRATION_SECONDS = 120000.0; // 33 hours!
  39. // private static readonly ILog m_log =
  40. // LogManager.GetLogger(
  41. // MethodBase.GetCurrentMethod().DeclaringType);
  42. private ExpiringCache<UUID, UserAccount> m_UUIDCache;
  43. private ExpiringCache<string, UUID> m_NameCache;
  44. public UserAccountCache()
  45. {
  46. m_UUIDCache = new ExpiringCache<UUID, UserAccount>();
  47. m_NameCache = new ExpiringCache<string, UUID>();
  48. }
  49. public void Cache(UUID userID, UserAccount account)
  50. {
  51. // Cache even null accounts
  52. m_UUIDCache.AddOrUpdate(userID, account, CACHE_EXPIRATION_SECONDS);
  53. if (account != null)
  54. m_NameCache.AddOrUpdate(account.Name, account.PrincipalID, CACHE_EXPIRATION_SECONDS);
  55. //m_log.DebugFormat("[USER CACHE]: cached user {0}", userID);
  56. }
  57. public UserAccount Get(UUID userID, out bool inCache)
  58. {
  59. UserAccount account = null;
  60. inCache = false;
  61. if (m_UUIDCache.TryGetValue(userID, out account))
  62. {
  63. //m_log.DebugFormat("[USER CACHE]: Account {0} {1} found in cache", account.FirstName, account.LastName);
  64. inCache = true;
  65. return account;
  66. }
  67. return null;
  68. }
  69. public UserAccount Get(string name, out bool inCache)
  70. {
  71. inCache = false;
  72. if (!m_NameCache.Contains(name))
  73. return null;
  74. UserAccount account = null;
  75. UUID uuid = UUID.Zero;
  76. if (m_NameCache.TryGetValue(name, out uuid))
  77. if (m_UUIDCache.TryGetValue(uuid, out account))
  78. {
  79. inCache = true;
  80. return account;
  81. }
  82. return null;
  83. }
  84. }
  85. }