private IDisposable GivenAMap(
MapSource source = MapSource.Class,
MapWith target = MapWith.DerivedA)
{
switch (source)
{
case MapSource.Class:
switch (target)
{
case MapWith.DerivedA:
return(GivenAMapping <BaseClass, DerivedA>());
case MapWith.DerivedB:
return(GivenAMapping <BaseClass, DerivedB>());
}
break;
case MapSource.Interface:
switch (target)
{
case MapWith.DerivedA:
return(GivenAMapping <INamedClass, DerivedA>());
case MapWith.DerivedB:
return(GivenAMapping <INamedClass, DerivedB>());
}
break;
}
return(null);
}
private void WhenThreadMapsToXThenThreadResolvesToX(MapSource sourceType, MapWith target)
{
var instance = WhenInstanceIsResolved(sourceType);
ThenInstanceMustBeTheBaseType(instance);
Console.WriteLine($"mapping to {target}");
using (GivenAMap(source: sourceType, target: target))
{
Thread.Sleep(100);
Console.WriteLine($"resolving for {target}");
instance = WhenInstanceIsResolved(sourceType);
ThenTheInstanceMustBe(instance, target);
}
}
private void ThenTheInstanceMustBe(INamedClass instance, MapWith expected = MapWith.DerivedA)
{
Assert.IsNotNull(instance);
switch (expected)
{
case MapWith.DerivedA:
Assert.IsTrue(instance.GetType() == typeof(DerivedA));
break;
case MapWith.DerivedB:
Assert.IsTrue(instance.GetType() == typeof(DerivedB));
break;
default:
throw new NotImplementedException();
}
}
/// <summary>
/// Map data from DataReader to an Object
/// </summary>
/// <typeparam name="T">Object to map</typeparam>
/// <param name="DataRead">Datareader</param>
/// <param name="UseElementMapper">Map maked with ElementMapper Attribute</param>
/// <returns>List of Object with data contains in DataReader</returns>
public static List <T> MapToList <T>(this DbDataReader DataRead, MapWith MappedWith = MapWith.Propertie) where T : new()
{
List <T> ListReturn = null;
// Define object type
var Entity = typeof(T);
// Define dictionary
var PropDict = new Dictionary <string, PropertyInfo>();
var AttrDict = new Dictionary <string, PropertyInfo>();
try
{
if (DataRead != null && DataRead.HasRows)
{
ListReturn = new List <T>();
// Get each properties of the Object
var Props = Entity.GetProperties(BindingFlags.Instance | BindingFlags.Public);
PropDict = Props.ToDictionary(p => p.Name.ToUpper(), p => p);
// Get each attribute of properites
foreach (PropertyInfo PropInfo in Props)
{
object[] AttrCollection = PropInfo.GetCustomAttributes(true);
foreach (object Attr in AttrCollection)
{
if (Attr is ElementMapper)
{
// Get the ElementMapper name
ElementMapper Element = Attr as ElementMapper;
if (Element != null)
{
AttrDict.Add(Element.ElementName.ToUpper(), PropInfo);
}
}
}
}
while (DataRead.Read())
{
T newObject = new T();
for (int Index = 0; Index < DataRead.FieldCount; Index++)
{
if ((MappedWith == MapWith.Propertie) || (MappedWith == MapWith.All))
{
// Search reader name in Dictionary properties
if (PropDict.ContainsKey(DataRead.GetName(Index).ToUpper()))
{
var Info = PropDict[DataRead.GetName(Index).ToUpper()];
if ((Info != null) && Info.CanWrite)
{
// Set value in Object
var Val = DataRead.GetValue(Index);
try
{
if (Info.PropertyType == Val.GetType())
{
Info.SetValue(newObject, (Val == DBNull.Value) ? null : Val, null);
}
else if (Info.PropertyType == typeof(string))
{
Info.SetValue(newObject, (Val == DBNull.Value) ? null : Val.ToString(), null);
}
}
catch (Exception ex)
{
throw;
}
}
}
}
if ((MappedWith == MapWith.Attribute) || (MappedWith == MapWith.All))
{
// Search reader name in Dictionary attributes
if (AttrDict.ContainsKey(DataRead.GetName(Index).ToUpper()))
{
var Info = AttrDict[DataRead.GetName(Index).ToUpper()];
if ((Info != null) && Info.CanWrite)
{
// Set value in Object
var Val = DataRead.GetValue(Index);
try
{
if (Info.PropertyType == Val.GetType())
{
Info.SetValue(newObject, (Val == DBNull.Value) ? null : Val, null);
}
else if (Info.PropertyType == typeof(string))
{
Info.SetValue(newObject, (Val == DBNull.Value) ? null : Val.ToString(), null);
}
}
catch (Exception ex)
{
throw;
}
}
}
}
}
// Add current object in the list
ListReturn.Add(newObject);
}
}
}
catch (Exception ex)
{
Console.WriteLine("DataReaderExtension : " + ex.Message);
throw;
}
return(ListReturn);
}
/// <summary>
/// Map data from List Dictionnary to an Object
/// </summary>
/// <typeparam name="T">Object to map</typeparam>
/// <param name="ListDict">List Dictionary</param>
/// <param name="UseElementMapper">Map maked with ElementMapper Attribute</param>
/// <returns>List of Object with data contains in List Dictionary</returns>
public static List <T> MapToList <T>(this List <Dictionary <string, string> > ListDict, MapWith MappedWith = MapWith.Propertie) where T : new()
{
List <T> ListReturn = null;
// Define object type
var Entity = typeof(T);
// Define dictionary
var PropDict = new Dictionary <string, PropertyInfo>();
var AttrDict = new Dictionary <string, PropertyInfo>();
try
{
if (ListDict != null && ListDict.Count > 0)
{
ListReturn = new List <T>();
// Get each properties of the Object
var Props = Entity.GetProperties(BindingFlags.Instance | BindingFlags.Public);
PropDict = Props.ToDictionary(p => p.Name.ToUpper(), p => p);
// Get each attribute of properites
foreach (PropertyInfo PropInfo in Props)
{
object[] AttrCollection = PropInfo.GetCustomAttributes(true);
foreach (object Attr in AttrCollection)
{
if (Attr is ElementMapper)
{
// Get the ElementMapper name
ElementMapper Element = Attr as ElementMapper;
if (Element != null)
{
AttrDict.Add(Element.ElementName.ToUpper(), PropInfo);
}
}
}
}
foreach (Dictionary <string, string> Dict in ListDict)
{
T newObject = new T();
for (int Index = 0; Index < Dict.Count; Index++)
{
if ((MappedWith == MapWith.Propertie) || (MappedWith == MapWith.All))
{
if (PropDict.ContainsKey(Dict.ElementAt(Index).Key.ToUpper()))
{
var Info = PropDict[Dict.ElementAt(Index).Key.ToUpper()];
if ((Info != null) && Info.CanWrite)
{
var Val = Dict.ElementAt(Index).Value;
if (Info.PropertyType == Val.GetType())
{
Info.SetValue(newObject, Val);
}
else if (Info.PropertyType == typeof(string))
{
Info.SetValue(newObject, Val.ToString());
}
}
}
}
if ((MappedWith == MapWith.Attribute) || (MappedWith == MapWith.All))
{
if (AttrDict.ContainsKey(Dict.ElementAt(Index).Key.ToUpper()))
{
var Info = AttrDict[Dict.ElementAt(Index).Key.ToUpper()];
if ((Info != null) && Info.CanWrite)
{
var Val = Dict.ElementAt(Index).Value;
if (Info.PropertyType == Val.GetType())
{
Info.SetValue(newObject, Val);
}
else if (Info.PropertyType == typeof(string))
{
Info.SetValue(newObject, Val.ToString());
}
}
}
}
}
ListReturn.Add(newObject);
}
}
}
catch (Exception ex)
{
Console.WriteLine("DataReaderExtension : " + ex.Message);
throw;
}
return(ListReturn);
}
