/// <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>
/// <param name="map"></param>
/// <returns>Returns false if no match found.</returns>
internal override bool TryGetMap(string identity, DataSpace typeSpace, bool ignoreCase, out Map 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 (!m_edmCollection.TryGetItem(identity, true, out cdmType))
{
map = null;
return false;
}
identity = cdmType.Identity;
}
int index;
if (cdmTypeIndexes.TryGetValue(identity, out index))
{
map = (Map)this[index];
return true;
}
if (cdmType != null
||
m_edmCollection.TryGetItem(identity, ignoreCase, out cdmType))
{
// If the mapping is not already loaded, then get the mapping ospace type
m_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 (!m_objectCollection.TryGetItem(identity, true, out clrType))
{
map = null;
return false;
}
identity = clrType.Identity;
}
int index;
if (clrTypeIndexes.TryGetValue(identity, out index))
{
map = (Map)this[index];
return true;
}
if (clrType != null
||
m_objectCollection.TryGetItem(identity, ignoreCase, out clrType))
{
// If the mapping is not already loaded, get the mapping cspace type
var cspaceTypeName = ObjectItemCollection.TryGetMappingCSpaceTypeIdentity(clrType);
m_edmCollection.TryGetItem(cspaceTypeName, out cdmType);
}
}
if ((clrType == null)
|| (cdmType == null))
{
map = null;
return false;
}
else
{
map = GetDefaultMapping(cdmType, clrType);
return true;
}
}
/// <summary>
/// Given a map, dereference the EdmItem, ensure that it is
/// an EdmType and return a TypeUsage for the type, otherwise
/// return null.
/// </summary>
/// <param name="map"> The OC map to use to get the EdmType </param>
/// <returns> A TypeUsage for the mapped EdmType or null if no EdmType was mapped </returns>
private static TypeUsage GetMappedTypeUsage(Map map)
{
TypeUsage typeUsage = null;
if (null != map)
{
var item = map.EdmItem;
var edmItem = item as EdmType;
if (null != item
&& edmItem != null)
{
typeUsage = TypeUsage.Create(edmItem);
}
}
return typeUsage;
}
/// <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="map"></param>
/// <returns>Returns false if no match found.</returns>
internal override bool TryGetMap(string identity, DataSpace typeSpace, out Map map)
{
return TryGetMap(identity, typeSpace, false /*ignoreCase*/, out map);
}
/// <summary>
/// Search for a Mapping metadata with the specified type key.
/// </summary>
/// <param name="item"></param>
/// <param name="map"></param>
/// <returns>Returns false if no match found.</returns>
internal override bool TryGetMap(GlobalItem item, out Map map)
{
if (item == null)
{
map = null;
return false;
}
var typeSpace = item.DataSpace;
//For transient types just create a map on fly and return
var edmType = item as EdmType;
if (edmType != null)
{
if (Helper.IsTransientType(edmType))
{
map = GetOCMapForTransientType(edmType, typeSpace);
if (map != null)
{
return true;
}
else
{
return false;
}
}
}
return TryGetMap(item.Identity, typeSpace, out map);
}
/// <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>
/// <param name="map"> </param>
/// <returns> Returns false if no match found. </returns>
internal virtual bool TryGetMap(string identity, DataSpace typeSpace, bool ignoreCase, out Map map)
{
//will only be implemented by Mapping Item Collections
throw Error.NotSupported();
}
/// <summary>
/// Search for a Mapping metadata with the specified type key.
/// </summary>
/// <param name="item"> </param>
/// <param name="map"> </param>
/// <returns> Returns false if no match found. </returns>
internal virtual bool TryGetMap(GlobalItem item, out Map map)
{
//will only be implemented by Mapping Item Collections
throw Error.NotSupported();
}
/// <summary>
/// Search for a Mapping metadata with the specified type key.
/// </summary>
/// <param name="item"> </param>
/// <param name="map"> </param>
/// <returns> Returns false if no match found. </returns>
internal override bool TryGetMap(GlobalItem item, out Map map)
{
if (item == null)
{
map = null;
return false;
}
var typeSpace = item.DataSpace;
if (typeSpace != DataSpace.CSpace)
{
map = null;
return false;
}
return TryGetMap(item.Identity, typeSpace, out map);
}
/// <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>
/// <param name="map"> </param>
/// <returns> Returns false if no match found. </returns>
internal override bool TryGetMap(string identity, DataSpace typeSpace, bool ignoreCase, out Map map)
{
if (typeSpace != DataSpace.CSpace)
{
throw new InvalidOperationException(Strings.Mapping_Storage_InvalidSpace(typeSpace));
}
return TryGetItem(identity, ignoreCase, out map);
}
// Add to the cache. If it is already present, then throw an exception
private void AddInternal(Map storageMap)
{
storageMap.DataSpace = DataSpace.CSSpace;
try
{
base.AddInternal(storageMap);
}
catch (ArgumentException e)
{
throw new MappingException(Strings.Mapping_Duplicate_Type(storageMap.EdmItem.Identity), e);
}
}