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1 using System;
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2
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3 using NUnit.Framework;
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4
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5 using BLToolkit.Reflection;
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6 using System.Reflection;
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7 using System.Collections.Generic;
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8 using BLToolkit.Mapping;
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9
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10 namespace Reflection
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11 {
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12 [TestFixture]
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13 public class ObjectFactoryAttributeTest
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14 {
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15 [ObjectFactory(typeof(TestObject.Factory))]
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16 public class TestObject
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17 {
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18 public TestObject()
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19 {
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20 throw new InvalidOperationException();
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21 }
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22
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23 private TestObject(int n)
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24 {
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25 Number = n;
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26 }
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27
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28 public int Number;
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29
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30 public class Factory : IObjectFactory
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31 {
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32 object IObjectFactory.CreateInstance(TypeAccessor typeAccessor, InitContext context)
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33 {
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34 return new TestObject(53);
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35 }
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36 }
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37 }
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38
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39 [Test]
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40 public void Test()
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41 {
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42 TestObject o = (TestObject)TypeAccessor.CreateInstanceEx(typeof(TestObject));
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43
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44 Assert.AreEqual(53, o.Number);
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45 }
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46
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47 [ObjectFactory(typeof(Record.Factory))]
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48 public class Record
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49 {
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50 public class Factory : IObjectFactory
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51 {
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52 #region IObjectFactory Members
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53
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54 public object CreateInstance(TypeAccessor typeAccessor, InitContext context)
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55 {
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56 Type t = typeAccessor.Type;
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57
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58 ConstructorInfo[] ctis = t.GetConstructors(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
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59 ConstructorInfo constructor = ctis[0];
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60
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61 foreach (ConstructorInfo ci in ctis)
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62 {
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63 if (constructor.GetParameters().Length < ci.GetParameters().Length)
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64 constructor = ci;
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65 }
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66
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67 ParameterInfo[] pis = constructor.GetParameters();
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68 object[] param = new object[pis.Length];
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69
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70 for(int i = 0; i < pis.Length; i++)
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71 {
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72 ParameterInfo pi = pis[i];
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73 Type pType = pi.ParameterType;
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74 string pName = pi.Name;
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75 int ordinal = context.DataSource.GetOrdinal(pName);
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76
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77 if (ordinal >= 0)
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78 {
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79 param[i] = context.MappingSchema.ConvertChangeType(
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80 context.DataSource.GetValue(context.SourceObject, ordinal),
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81 pType);
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82 }
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83 else
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84 param[i] = context.MappingSchema.GetDefaultValue(pType);
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85 }
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86
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87 context.StopMapping = true;
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88
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89 return constructor.Invoke(param);
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90
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91 }
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92
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93 #endregion
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94 }
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95
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96 public Record(string name, int value)
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97 {
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98 _name = name;
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99 _value = value;
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100 }
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101
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102 private string _name;
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103 public string Name { get { return _name; } }
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104
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105 private int _value;
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106 public int Value { get { return _value; } }
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107 }
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108
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109 [Test]
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110 public void RecordFactoryTest()
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111 {
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112 Record s = new Record("Elvis", 101);
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113 Record r = Map.ObjectToObject<Record>(s);
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114
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115 Assert.IsNotNull(r);
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116
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117 Assert.AreEqual(s.Value, r.Value);
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118 Assert.AreEqual(s.Name, r.Name);
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119 }
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120 }
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121 }
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