public EdgeResult EvaluateCondition(IMapElement mapElement)
{
if (Condition == null)
{
// As we weren't given a Condition we want this to be ignored so other results aren't dirtied.
return new EdgeResult() { IsEdge = null, IsIncluded = false };
}
if (mapElement is Node && Condition.EdgeElement == EdgeElementType.Relationship)
{
// If the mapElement type doesn't match the condition type then ignore this condition.
return new EdgeResult() { IsEdge = null, IsIncluded = false };
}
else if (mapElement is Relationship && Condition.EdgeElement == EdgeElementType.Node)
{
// If the mapElement type doesn't match the condition type then ignore this condition.
return new EdgeResult() { IsEdge = null, IsIncluded = false };
}
else if (!(mapElement is Node) && !(mapElement is Relationship))
{
// If the mapElement isn't a known type then ignore this condition.
return new EdgeResult() { IsEdge = null, IsIncluded = false };
}
bool isEdge = false;
switch (Condition.EdgeComponent)
{
case EdgeComponentType.Id:
isEdge = mapElement.Id.Equals(Condition.ComponentValue);
break;
case EdgeComponentType.OriginalId:
isEdge = mapElement.OriginalId.Equals(Condition.ComponentValue);
break;
case EdgeComponentType.Type:
isEdge = mapElement.TypeId.Equals(Condition.ComponentValue);
break;
case EdgeComponentType.Metadata:
MetadataEdgeConditionTest metadataCondition = Condition as MetadataEdgeConditionTest;
if (metadataCondition != null)
{
IEnumerable<KeyValuePair<MetadataContext, Metadata>> matchingMetadata = mapElement.Metadata.Where(item => item.Value.MetadataValue.Equals(Condition.ComponentValue));
isEdge = (matchingMetadata.Count() > 0);
}
else
{
isEdge = false;
}
break;
default:
isEdge = false;
break;
}
return new EdgeResult() { IsEdge = isEdge, IsIncluded = Condition.IsIncluded };
}
}
