public List <SingleResource> CreateIncludedRepresentations(List <object> primaryResourceList, IResourceMapping resourceMapping, Context context)
{
var includedList = new List <SingleResource>();
var primaryResourceIdentifiers = primaryResourceList.Select(x =>
{
var id = new SingleResourceIdentifier
{
Id = resourceMapping.IdGetter(x).ToString(),
Type = resourceMapping.ResourceType,
MetaData = GetRelationshipMetadata(x)
};
return(id);
});
var alreadyVisitedObjects = new HashSet <SingleResourceIdentifier>(primaryResourceIdentifiers, new SingleResourceIdentifierComparer());
foreach (var resource in primaryResourceList)
{
includedList.AddRange(
AppendIncludedRepresentationRecursive(
resource,
resourceMapping,
alreadyVisitedObjects,
context));
}
if (includedList.Any())
{
return(includedList);
}
return(null);
}
private List <SingleResource> AppendIncludedRepresentationRecursive(
object resource,
IResourceMapping resourceMapping,
HashSet <SingleResourceIdentifier> alreadyVisitedObjects,
Context context,
string parentRelationshipPath = "")
{
var includedResources = new List <SingleResource>();
foreach (var relationship in resourceMapping.Relationships)
{
if (relationship.InclusionRule == ResourceInclusionRules.ForceOmit)
{
continue;
}
var relatedResources = UnifyObjectsToList(relationship.RelatedResource(resource));
string relationshipPath = BuildRelationshipPath(parentRelationshipPath, relationship);
if (!context.IncludedResources.Any(x => x.Contains(relationshipPath)))
{
continue;
}
foreach (var relatedResource in relatedResources)
{
var relatedResourceId = new SingleResourceIdentifier
{
Id = relationship.ResourceMapping.IdGetter(relatedResource).ToString(),
Type = relationship.ResourceMapping.ResourceType,
MetaData = GetRelationshipMetadata(relatedResource)
};
if (alreadyVisitedObjects.Contains(relatedResourceId))
{
continue;
}
alreadyVisitedObjects.Add(relatedResourceId);
includedResources.Add(
CreateResourceRepresentation(relatedResource, relationship.ResourceMapping, context));
includedResources.AddRange(
AppendIncludedRepresentationRecursive(relatedResource, relationship.ResourceMapping, alreadyVisitedObjects, context, relationshipPath));
}
}
return(includedResources);
}