internal static bool TryDetermineCSpaceModelType(Type type, MetadataWorkspace workspace, out EdmType modelEdmType)
{
Debug.Assert(null != workspace);
Type nonNullabelType = TypeSystem.GetNonNullableType(type);
// make sure the workspace knows about T
workspace.ImplicitLoadAssemblyForType(nonNullabelType, System.Reflection.Assembly.GetCallingAssembly());
ObjectItemCollection objectItemCollection = (ObjectItemCollection)workspace.GetItemCollection(DataSpace.OSpace);
EdmType objectEdmType;
if (objectItemCollection.TryGetItem <EdmType>(nonNullabelType.FullName, out objectEdmType))
{
Map map;
if (workspace.TryGetMap(objectEdmType, DataSpace.OCSpace, out map))
{
ObjectTypeMapping objectMapping = (ObjectTypeMapping)map;
modelEdmType = objectMapping.EdmType;
return(true);
}
}
modelEdmType = null;
return(false);
}
// <summary>
// Search for a Mapping metadata with the specified type key.
// </summary>
// <param name="identity"> identity of the type </param>
// <param name="typeSpace"> The dataspace that the type for which map needs to be returned belongs to </param>
// <param name="ignoreCase"> true for case-insensitive lookup </param>
// <returns> Returns false if no match found. </returns>
internal override bool TryGetMap(string identity, DataSpace typeSpace, bool ignoreCase, out MappingBase map)
{
EdmType cdmType = null;
EdmType clrType = null;
if (typeSpace == DataSpace.CSpace)
{
if (ignoreCase)
{
// Get the correct casing of the identity first if we are asked to do ignore case
if (!_edmCollection.TryGetItem(identity, true, out cdmType))
{
map = null;
return(false);
}
identity = cdmType.Identity;
}
int index;
if (_edmTypeIndexes.TryGetValue(identity, out index))
{
map = (MappingBase)this[index];
return(true);
}
if (cdmType != null
||
_edmCollection.TryGetItem(identity, ignoreCase, out cdmType))
{
// If the mapping is not already loaded, then get the mapping ospace type
_objectCollection.TryGetOSpaceType(cdmType, out clrType);
}
}
else if (typeSpace == DataSpace.OSpace)
{
if (ignoreCase)
{
// Get the correct casing of the identity first if we are asked to do ignore case
if (!_objectCollection.TryGetItem(identity, true, out clrType))
{
map = null;
return(false);
}
identity = clrType.Identity;
}
int index;
if (_clrTypeIndexes.TryGetValue(identity, out index))
{
map = (MappingBase)this[index];
return(true);
}
if (clrType != null
||
_objectCollection.TryGetItem(identity, ignoreCase, out clrType))
{
// If the mapping is not already loaded, get the mapping cspace type
var cspaceTypeName = ObjectItemCollection.TryGetMappingCSpaceTypeIdentity(clrType);
_edmCollection.TryGetItem(cspaceTypeName, out cdmType);
}
}
if ((clrType == null) ||
(cdmType == null))
{
map = null;
return(false);
}
else
{
map = GetDefaultMapping(cdmType, clrType);
return(true);
}
}