/// <summary>
/// This will create an (mostly) empty INode
/// </summary>
public INode()
{
// Members of AGraphStructure
_StructureVersion = actualStructureVersion;
_IntegrityCheckValue = null;
_EncryptionParameters = null;
ObjectUUID = new ObjectUUID();
_INodePositions = new List<ExtendedPosition>();
_ObjectLocatorReference = null;
// Common attributes
_CreationTime = TimestampNonce.Ticks;
_LastAccessTime = _CreationTime;
_LastModificationTime = _CreationTime;
_DeletionTime = UInt64.MinValue;
// Object Safety and Security
_IntegrityCheckAlgorithm = IntegrityCheckTypes.NULLAlgorithm;
_EncryptionAlgorithm = SymmetricEncryptionTypes.NULLAlgorithm;
// ObjectLocatorPositions
_ObjectLocatorLength = 0;
_ObjectLocatorCopies = FSConstants.ObjectLocatorsCopies;
_ObjectLocatorPositions = new List<ExtendedPosition>();
// Mark INode dirty
isDirty = true;
}
public static IIntegrityCheck Generate(IntegrityCheckTypes myIntegrityCheckType)
{
if (myIntegrityCheckType == IntegrityCheckTypes.NULLAlgorithm)
return new NULLAlgorithm();
else if (myIntegrityCheckType == IntegrityCheckTypes.MD5)
return new MD5();
else if (myIntegrityCheckType == IntegrityCheckTypes.SHA1)
return new SHA1();
else
throw new CryptographyExceptions_ProtocolNotSupported("The protocol id '" + myIntegrityCheckType + "' is not supported!");
}
public override void Deserialize(ref SerializationReader mySerializationReader)
{
UInt16 NumberOfObjectLocatorPositions;
UInt16 NumberOfINodePositions;
try
{
#region Read Common attributes
_CreationTime = mySerializationReader.ReadUInt64();
_LastModificationTime = mySerializationReader.ReadUInt64();
_LastAccessTime = mySerializationReader.ReadUInt64();
_DeletionTime = mySerializationReader.ReadUInt64();
_ObjectSize = mySerializationReader.ReadUInt64();
#endregion
#region Object Safety and Security
_IntegrityCheckAlgorithm = (IntegrityCheckTypes)mySerializationReader.ReadOptimizedByte();
_EncryptionAlgorithm = (SymmetricEncryptionTypes)mySerializationReader.ReadOptimizedByte();
#endregion
#region Read list of ObjectLocatorPositions
_ObjectLocatorLength = mySerializationReader.ReadUInt64();
_ObjectLocatorCopies = mySerializationReader.ReadUInt64();
NumberOfObjectLocatorPositions = mySerializationReader.ReadUInt16();
_ObjectLocatorPositions = new List<ExtendedPosition>();
for (int i = 1; i <= NumberOfObjectLocatorPositions; i++)
_ObjectLocatorPositions.Add(new ExtendedPosition(new StorageUUID(mySerializationReader.ReadByteArray()), mySerializationReader.ReadUInt64()));
#endregion
#region Read list of INodePositions
NumberOfINodePositions = mySerializationReader.ReadUInt16();
_INodePositions = new List<ExtendedPosition>();
for (int i = 1; i <= NumberOfINodePositions; i++)
_INodePositions.Add(new ExtendedPosition(new StorageUUID(mySerializationReader.ReadByteArray()), mySerializationReader.ReadUInt64()));
#endregion
#region Read State
_ObjectLocatorStates = (ObjectLocatorStates)mySerializationReader.ReadOptimizedByte();
#endregion
}
catch (Exception e)
{
throw new GraphFSException_INodeCouldNotBeDeserialized("INode could not be deserialized!\n\n" + e);
}
//isDirty = true; // this is not useful!
}
