private static bool NextIteration(IServiceModel serviceModel, IEnumerator <string> urlPathSegmentsEnumerator, ICollection <IHypermediaPath> documentSelfPath)
{
// Parse for the next relationship CLR resource type represented as
// either a to-many resource collection, to-many resource, or to-one resource
// in the URL path.
var previousResourceTypePath = documentSelfPath.Last(x => x.HasClrResourceType());
var previousClrResourceType = previousResourceTypePath.GetClrResourceType();
var previousResourceType = serviceModel.GetResourceType(previousClrResourceType);
var relationship = default(IRelationshipInfo);
var nonResourcePathSegments = default(List <string>);
var pathSegmentToRelationshipDictionary = default(IDictionary <string, IRelationshipInfo>);
while (urlPathSegmentsEnumerator.MoveNext())
{
var currentUrlPathSegment = urlPathSegmentsEnumerator.Current;
pathSegmentToRelationshipDictionary = pathSegmentToRelationshipDictionary ?? previousResourceType
.RelationshipsInfo
.Collection
.ToDictionary(x => x.ApiRelPathSegment, StringComparer.OrdinalIgnoreCase);
// Iterate over URL path segments until the current URL path segment
// represents a relationship path segment.
if (pathSegmentToRelationshipDictionary.TryGetValue(currentUrlPathSegment, out relationship))
{
// Done iterating.
break;
}
// Keep iterating.
nonResourcePathSegments = nonResourcePathSegments ?? new List <string>();
nonResourcePathSegments.Add(currentUrlPathSegment);
}
// Add any non-resource path segments if needed.
var nonResourcePathSegmentsFound = nonResourcePathSegments != null;
if (nonResourcePathSegmentsFound)
{
var nonResourceTypePath = new NonResourceHypermediaPath(nonResourcePathSegments);
documentSelfPath.Add(nonResourceTypePath);
}
// If no relationship path segments found, then done.
var noRelationshipPathSegments = relationship == null;
if (noRelationshipPathSegments)
{
return(false);
}
// Iterate one more URL path segment for a possible resource identifier.
var clrResourceType = relationship.ToClrType;
var apiRelationshipRelPathSegment = urlPathSegmentsEnumerator.Current;
var apiRelationshipCardinality = relationship.ToCardinality;
bool continueIterating;
switch (apiRelationshipCardinality)
{
case RelationshipCardinality.ToOne:
{
continueIterating = true;
var toOneResourcePath = new ToOneResourceHypermediaPath(clrResourceType, apiRelationshipRelPathSegment);
documentSelfPath.Add(toOneResourcePath);
}
break;
case RelationshipCardinality.ToMany:
{
var moreUrlPathSegments = urlPathSegmentsEnumerator.MoveNext();
continueIterating = moreUrlPathSegments;
if (!moreUrlPathSegments)
{
var toManyResourceCollectionPath = new ToManyResourceCollectionHypermediaPath(clrResourceType, apiRelationshipRelPathSegment);
documentSelfPath.Add(toManyResourceCollectionPath);
}
else
{
var apiId = urlPathSegmentsEnumerator.Current;
var toManyResourcePath = new ToManyResourceHypermediaPath(clrResourceType, apiRelationshipRelPathSegment, apiId);
documentSelfPath.Add(toManyResourcePath);
}
}
break;
default:
{
var detail = InfrastructureErrorStrings.InternalErrorExceptionDetailUnknownEnumerationValue
.FormatWith(typeof(RelationshipCardinality).Name, apiRelationshipCardinality);
throw new InternalErrorException(detail);
}
}
return(continueIterating);
}
private static bool InitialIteration(IServiceModel serviceModel, IEnumerator <string> urlPathSegmentsEnumerator, ICollection <IHypermediaPath> documentSelfPath)
{
// Parse for the initial CLR resource type represented as either
// a resource or resource collection in the raw URL path.
var resourceType = default(IResourceType);
var clrResourceType = default(Type);
var nonResourcePathSegments = default(List <string>);
var pathSegmentToResourceTypeDictionary = default(IDictionary <string, IResourceType>);
// Parse for initial resource or resource collection path objects.
while (urlPathSegmentsEnumerator.MoveNext())
{
var currentUrlPathSegment = urlPathSegmentsEnumerator.Current;
pathSegmentToResourceTypeDictionary = pathSegmentToResourceTypeDictionary ?? serviceModel
.ResourceTypes
.ToDictionary(x => x.HypermediaInfo.ApiCollectionPathSegment, StringComparer.OrdinalIgnoreCase);
// Iterate over URL path segments until the current URL path segment
// represents a CLR resource collection path segment.
if (pathSegmentToResourceTypeDictionary.TryGetValue(currentUrlPathSegment, out resourceType))
{
// Done iterating.
clrResourceType = resourceType.ClrType;
break;
}
// Keep iterating.
nonResourcePathSegments = nonResourcePathSegments ?? new List <string>();
nonResourcePathSegments.Add(currentUrlPathSegment);
}
// Add any non-resource path segments, if needed.
var nonResourcePathSegmentsFound = nonResourcePathSegments != null;
if (nonResourcePathSegmentsFound)
{
var nonResourceTypePath = new NonResourceHypermediaPath(nonResourcePathSegments);
documentSelfPath.Add(nonResourceTypePath);
}
// If no CLR related resource path segments found, then done.
var noClrResourcePathSegments = clrResourceType == null;
if (noClrResourcePathSegments)
{
return(false);
}
// Take into account singleton resources.
if (resourceType.IsSingleton())
{
var apiSingletonPathSegment = urlPathSegmentsEnumerator.Current;
var apiSingletonPath = new SingletonHypermediaPath(clrResourceType, apiSingletonPathSegment);
documentSelfPath.Add(apiSingletonPath);
return(true);
}
// Iterate one more URL path segment for a possible resource identifier.
var apiCollectionPathSegment = urlPathSegmentsEnumerator.Current;
var moreUrlPathSegments = urlPathSegmentsEnumerator.MoveNext();
if (!moreUrlPathSegments)
{
var resourceCollectionPath = new ResourceCollectionHypermediaPath(clrResourceType, apiCollectionPathSegment);
documentSelfPath.Add(resourceCollectionPath);
}
else
{
var apiId = urlPathSegmentsEnumerator.Current;
var resourcePath = new ResourceHypermediaPath(clrResourceType, apiCollectionPathSegment, apiId);
documentSelfPath.Add(resourcePath);
}
return(moreUrlPathSegments);
}
