public override IVertexType AlterType(IRequestAlterType myAlterTypeRequest,
Int64 myTransactionToken,
SecurityToken mySecurityToken,
out RequestUpdate myUpdateRequest)
{
CheckRequestType(myAlterTypeRequest);
RequestAlterVertexType myRequest = myAlterTypeRequest as RequestAlterVertexType;
var vertexType = _TypeManager.GetType(myRequest.TypeName,
myTransactionToken,
mySecurityToken);
#region check to be added
if (myRequest.ToBeAddedUnknownAttributes != null)
{
var toBeConverted = myRequest.ToBeAddedUnknownAttributes.ToArray();
foreach (var unknown in toBeConverted)
{
if (BinaryPropertyPredefinition.TypeName.Equals(unknown.AttributeType))
{
var prop = ConvertUnknownToBinaryProperty(unknown);
myRequest.AddBinaryProperty(prop);
}
else if (_baseTypeManager.IsBaseType(unknown.AttributeType))
{
var prop = ConvertUnknownToProperty(unknown);
myRequest.AddProperty(prop);
}
else if (unknown.AttributeType.Contains(IncomingEdgePredefinition.TypeSeparator))
{
var prop = ConvertUnknownToIncomingEdge(unknown);
myRequest.AddIncomingEdge(prop);
}
else
{
var prop = ConvertUnknownToOutgoingEdge(unknown);
myRequest.AddOutgoingEdge(prop);
}
}
myRequest.ResetUnknown();
}
#endregion
#region check to be removed
if (myRequest.ToBeRemovedUnknownAttributes != null)
{
foreach (var unknownProp in myRequest.ToBeRemovedUnknownAttributes)
{
var attrDef = vertexType.GetAttributeDefinition(unknownProp);
if (attrDef == null)
{
throw new AttributeDoesNotExistException(unknownProp);
}
switch (attrDef.Kind)
{
case AttributeType.Property:
myRequest.RemoveProperty(unknownProp);
break;
case AttributeType.OutgoingEdge:
myRequest.RemoveOutgoingEdge(unknownProp);
break;
case AttributeType.IncomingEdge:
myRequest.RemoveIncomingEdge(unknownProp);
break;
case AttributeType.BinaryProperty:
myRequest.RemoveBinaryProperty(unknownProp);
break;
default:
throw new Exception("The enumeration AttributeType was changed, but not this switch statement.");
}
}
myRequest.ClearToBeRemovedUnknownAttributes();
}
#endregion
#region check attributes to be defined
if (myRequest.ToBeDefinedAttributes != null)
{
foreach (var unknownProp in myRequest.ToBeDefinedAttributes)
{
var toBeDefined = myRequest.ToBeDefinedAttributes.ToArray();
foreach (var unknown in toBeDefined)
{
if (BinaryPropertyPredefinition.TypeName.Equals(unknown.AttributeType))
{
throw new InvalidDefineAttributeTypeException(BinaryPropertyPredefinition.TypeName, vertexType.Name);
}
else if (unknown.AttributeType.Contains(IncomingEdgePredefinition.TypeSeparator))
{
throw new InvalidDefineAttributeTypeException("incoming edge", vertexType.Name);
}
else if (!_baseTypeManager.IsBaseType(unknown.AttributeType))
{
throw new InvalidDefineAttributeTypeException("user defined", vertexType.Name);
}
}
}
}
#endregion
#region check attributes to be undefined
if (myRequest.ToBeUndefinedAttributes != null)
{
foreach (var attr in myRequest.ToBeUndefinedAttributes)
{
var attrDef = vertexType.GetAttributeDefinition(attr);
if (attrDef == null)
{
throw new AttributeDoesNotExistException(attr);
}
switch (attrDef.Kind)
{
case AttributeType.Property:
break;
case AttributeType.OutgoingEdge:
throw new InvalidUndefineAttributeTypeException("Outgoing Edge", vertexType.Name);
case AttributeType.IncomingEdge:
throw new InvalidUndefineAttributeTypeException("Incoming Edge", vertexType.Name);
case AttributeType.BinaryProperty:
throw new InvalidUndefineAttributeTypeException(BinaryPropertyPredefinition.TypeName, vertexType.Name);
default:
throw new Exception("The enumeration AttributeType was changed, but not this switch statement.");
}
}
}
#endregion
#region checks
CallCheckFunctions(myAlterTypeRequest, vertexType, myTransactionToken, mySecurityToken);
#endregion
myUpdateRequest = new RequestUpdate();
return(null);
}
