NullGenericDataHandler.cs 4.2 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.Linq;
  30. using System.Reflection;
  31. using log4net;
  32. using OpenMetaverse;
  33. using OpenSim.Framework;
  34. using OpenSim.Data;
  35. namespace OpenSim.Data.Null
  36. {
  37. /// <summary>
  38. /// Not a proper generic data handler yet - probably needs to actually store the data as well instead of relying
  39. /// on descendent classes
  40. /// </summary>
  41. public class NullGenericDataHandler
  42. {
  43. protected List<T> Get<T>(string field, string val, List<T> inputEntities)
  44. {
  45. List<T> entities = inputEntities;
  46. entities
  47. = entities.Where(
  48. e =>
  49. {
  50. FieldInfo fi = typeof(T).GetField(field);
  51. if (fi == null)
  52. throw new NotImplementedException(string.Format("No field {0} for val {1}", field, val));
  53. return fi.GetValue(e).ToString() == val;
  54. }
  55. ).ToList();
  56. return entities;
  57. }
  58. protected List<T> Get<T>(string field, string[] vals, List<T> inputEntities)
  59. {
  60. List<T> entities = new List<T>();
  61. for (int i = 0; i < vals.Length; i++)
  62. {
  63. entities.AddRange (inputEntities.Where(
  64. e =>
  65. {
  66. FieldInfo fi = typeof(T).GetField(field);
  67. if (fi == null)
  68. throw new NotImplementedException(string.Format("No field {0} for val {1}", field, vals[i]));
  69. return fi.GetValue(e).ToString() == vals[i];
  70. }
  71. ).ToList()
  72. );
  73. }
  74. return entities;
  75. }
  76. protected List<T> Get<T>(string[] fields, string[] vals, List<T> inputEntities)
  77. {
  78. List<T> entities = inputEntities;
  79. for (int i = 0; i < fields.Length; i++)
  80. {
  81. entities
  82. = entities.Where(
  83. e =>
  84. {
  85. FieldInfo fi = typeof(T).GetField(fields[i]);
  86. if (fi == null)
  87. throw new NotImplementedException(string.Format("No field {0} for val {1}", fields[i], vals[i]));
  88. return fi.GetValue(e).ToString() == vals[i];
  89. }
  90. ).ToList();
  91. }
  92. return entities;
  93. }
  94. }
  95. }