private Exceptional<Boolean> CreateTypeOnFS_internal(GraphDBType myGraphType)
{
#region Data
var typeName = myGraphType.Name;
var typeDir = myGraphType.ObjectLocation;
#endregion
#region Change the database instance settings containing the StorageLocation paths (Object Schemes)
lock (_ObjectLocationsOfAllUserDefinedDatabaseTypes)
{
_ObjectLocationsOfAllUserDefinedDatabaseTypes.Add(typeDir.ToString());
_ObjectLocationsOfAllUserDefinedDatabaseTypes.Save();
}
#endregion
#region Store the new type on the file system
var isDirExcept = _IGraphFSSession.isIDirectoryObject(typeDir);
if(isDirExcept.Failed())
return new Exceptional<bool>(isDirExcept);
if (isDirExcept.Value == Trinary.TRUE)
return new Exceptional<Boolean>(new Error_UnknownDBError("Default directory for the new type " + typeName + " could not be created, cause it already exists."));
#region Get blocksize of the TypeDirectory from "TYPEDIRBLOCKSIZE" setting
UInt64 TypeDirBlockSize = 0;
var blocksizeSetting = new SettingTypeDirBlocksize();
var _TypeDireBlockSizeExceptional = blocksizeSetting.Get(_DBContext, TypesSettingScope.DB);
if (!_TypeDireBlockSizeExceptional.Success())
{
return new Exceptional<Boolean>(_TypeDireBlockSizeExceptional);
//throw new GraphDBException(new Error_SettingDoesNotExist("TYPEDIRBLOCKSIZE"));
}
if (_TypeDireBlockSizeExceptional.Value == null)
{
TypeDirBlockSize = (UInt64)(Int64)blocksizeSetting.Default.Value;
}
else
{
TypeDirBlockSize = (UInt64)(Int64)_TypeDireBlockSizeExceptional.Value.Value.Value;
}
#endregion
// Create the directory for the new type
var CreateDirExcept = _IGraphFSSession.CreateDirectoryObject(typeDir, TypeDirBlockSize);
if (CreateDirExcept.Failed())
return new Exceptional<bool>(CreateDirExcept);
// Create a subdirectory for the objects of this new type
CreateDirExcept = _IGraphFSSession.CreateDirectoryObject(new ObjectLocation(typeDir, DBConstants.DBObjectsLocation));
if (CreateDirExcept.Failed())
return new Exceptional<bool>(CreateDirExcept);
// Create a subdirectory for the indices of this new type
CreateDirExcept = _IGraphFSSession.CreateDirectoryObject(new ObjectLocation(typeDir, DBConstants.DBIndicesLocation));
if (CreateDirExcept.Failed())
return new Exceptional<bool>(CreateDirExcept);
#endregion
var FlushExcept = FlushType(myGraphType);
if (FlushExcept.Failed())
return new Exceptional<bool>(FlushExcept);
#region create Objects directory shards
Exceptional<IDirectoryObject> createObjectsDirectoryShard = null;
for (int i = 0; i < myGraphType.ObjectDirectoryShards; i++)
{
//create object directory shards
createObjectsDirectoryShard = _IGraphFSSession.CreateDirectoryObject(new ObjectLocation(typeDir, DBConstants.DBObjectsLocation, i.ToString()));
if (createObjectsDirectoryShard.Failed())
return new Exceptional<bool>(createObjectsDirectoryShard);
}
#endregion
return new Exceptional<bool>(true);
}
private Exceptional AddType_CreateDefaultDirectories(GraphDBType aType)
{
var typeDir = aType.ObjectLocation;
var isDirExcept = _IGraphFSSession.isIDirectoryObject(typeDir);
if (isDirExcept.Failed())
return isDirExcept;
if (isDirExcept.Value == Trinary.TRUE)
return new Exceptional(new Error_UnknownDBError("Default directory for the new type " + aType.Name + " could not be created, cause it already exists."));
#region Get blocksize of the TypeDirectory from "TYPEDIRBLOCKSIZE" setting
UInt64 TypeDirBlockSize = 0;
var blocksizeSetting = new SettingTypeDirBlocksize();
var _TypeDireBlockSizeExceptional = blocksizeSetting.Get(_DBContext, TypesSettingScope.DB);
if (!_TypeDireBlockSizeExceptional.Success())
{
return _TypeDireBlockSizeExceptional;
//throw new GraphDBException(new Error_SettingDoesNotExist("TYPEDIRBLOCKSIZE"));
}
if (_TypeDireBlockSizeExceptional.Value == null)
{
TypeDirBlockSize = (UInt64)(Int64)blocksizeSetting.Default.Value;
}
else
{
TypeDirBlockSize = (UInt64)(Int64)_TypeDireBlockSizeExceptional.Value.Value.Value;
}
#endregion
// Create the directory for the new type
var CreateDirExcept = _IGraphFSSession.CreateDirectoryObject(typeDir, TypeDirBlockSize);
if (CreateDirExcept.Failed())
return new Exceptional(CreateDirExcept);
// Create a subdirectory for the objects of this new type
CreateDirExcept = _IGraphFSSession.CreateDirectoryObject(new ObjectLocation(typeDir, DBConstants.DBObjectsLocation));
if (CreateDirExcept.Failed())
return CreateDirExcept;
// Create a subdirectory for the indices of this new type
CreateDirExcept = _IGraphFSSession.CreateDirectoryObject(new ObjectLocation(typeDir, DBConstants.DBIndicesLocation));
if (CreateDirExcept.Failed())
return CreateDirExcept;
return Exceptional.OK;
}
