private void ResolveResourceRelationship(IDomRelationship domRelationship,
IHypermediaContext hypermediaContext,
IHypermediaAssembler hypermediaAssembler,
IResourcePathContext resourcePathContext,
Type clrResourceType,
object clrResource,
DomReadWriteRelationships domReadWriteRelationships)
{
if (domRelationship.IsReadOnly)
{
return;
}
// Resolve read-write relationship
var domReadWriteRelationship = (DomReadWriteRelationship)domRelationship;
// .. Rel
var apiRelationshipRel = domReadWriteRelationship.Rel;
// .. Links
var linkContexts = new List <ILinkContext>();
var domRelationshipLinks = (IDomLinks)domReadWriteRelationship.GetNode(DomNodeType.Links);
if (domRelationshipLinks != null)
{
if (domRelationshipLinks.IsReadOnly)
{
// A read-write relationship contains unexpected read-only relationship links.
var detail = ServerErrorStrings.DomExceptionDetailReadWriteNodeHasUnexpectedReadOnlyChildNode
.FormatWith(DomNodeType.Relationship, DomNodeType.Links);
throw new DomException(detail);
}
var domReadWriteRelationshipLinks = (DomReadWriteLinks)domRelationshipLinks;
foreach (var domLink in domReadWriteRelationshipLinks.Nodes().Cast <IDomLink>())
{
if (domLink.IsReadOnly)
{
// A read-write relationship contains unexpected read-only relationship link.
var detail = ServerErrorStrings.DomExceptionDetailReadWriteNodeHasUnexpectedReadOnlyChildNode
.FormatWith(DomNodeType.Relationship, DomNodeType.Link);
throw new DomException(detail);
}
// Resolve read-write relationship link
var domReadWriteLink = (DomReadWriteLink)domLink;
var apiLinkRel = domReadWriteLink.Rel;
var apiLinkMeta = default(Meta);
var domMeta = (IDomMeta)domReadWriteLink.GetNode(DomNodeType.Meta);
if (domMeta != null)
{
apiLinkMeta = domMeta.Meta;
}
var linkContext = new LinkContext(apiLinkRel, apiLinkMeta);
linkContexts.Add(linkContext);
}
}
// .. Data
var resourceType = this.ServiceModel.GetResourceType(clrResourceType);
var fromApiResourceIdentifier = resourceType.GetApiResourceIdentifier(clrResource);
var resourceLinkageKey = new ResourceLinkageKey(fromApiResourceIdentifier, apiRelationshipRel);
ResourceLinkage resourceLinkage;
var hasResourceLinkage = this.DocumentBuilderContext.TryGetResourceLinkage(resourceLinkageKey, out resourceLinkage);
// .. Meta
var apiRelationshipMeta = default(Meta);
var domRelationshipMeta = (IDomMeta)domReadWriteRelationship.GetNode(DomNodeType.Meta);
if (domRelationshipMeta != null)
{
apiRelationshipMeta = domRelationshipMeta.Meta;
}
// Create the correct relationship context based on resource linkage (if any).
RelationshipContext relationshipContext;
if (hasResourceLinkage)
{
var resourceLinkageType = resourceLinkage.Type;
switch (resourceLinkageType)
{
case ResourceLinkageType.ToOneResourceLinkage:
{
var toOneResourceLinkage = resourceLinkage.ToOneResourceLinkage;
relationshipContext = new ToOneRelationshipContext(apiRelationshipRel, linkContexts, toOneResourceLinkage, apiRelationshipMeta);
}
break;
case ResourceLinkageType.ToManyResourceLinkage:
{
var toManyResourceLinkage = resourceLinkage.ToManyResourceLinkage;
relationshipContext = new ToManyRelationshipContext(apiRelationshipRel, linkContexts, toManyResourceLinkage, apiRelationshipMeta);
}
break;
default:
{
var detail = InfrastructureErrorStrings.InternalErrorExceptionDetailUnknownEnumerationValue
.FormatWith(typeof(ResourceLinkageType).Name, resourceLinkageType);
throw new InternalErrorException(detail);
}
}
}
else
{
relationshipContext = new RelationshipContext(apiRelationshipRel, linkContexts, apiRelationshipMeta);
}
// Create relationship.
var apiResourceRelationship = hypermediaAssembler.CreateResourceRelationship(hypermediaContext, resourcePathContext, clrResourceType, clrResource, relationshipContext);
// Replace the old DOM read-write relationship node with a new DOM read-only relationship created by the framework.
var domReadOnlyRelationship = DomReadOnlyRelationship.Create(apiRelationshipRel, apiResourceRelationship);
domReadWriteRelationships.ReplaceNode(domReadWriteRelationship, domReadOnlyRelationship);
}
internal void TestIDomRelationshipAbstraction(string name, string expectedRel, Relationship expectedRelationship, IDomRelationship domRelationship)
{
// Arrange
// Act
this.Output.WriteLine("Test Name: {0}", name);
this.Output.WriteLine(String.Empty);
this.Output.WriteLine("Expected Rel: {0}", expectedRel);
this.Output.WriteLine("Expected Relationship: {0}", expectedRelationship);
this.Output.WriteLine(String.Empty);
var actualRel = domRelationship.Rel;
var actualRelationship = domRelationship.Relationship;
this.Output.WriteLine("Actual Rel: {0}", actualRel);
this.Output.WriteLine("Actual Relationship: {0}", actualRelationship);
// Assert
Assert.Equal(expectedRel, actualRel);
RelationshipAssert.Equal(expectedRelationship, actualRelationship);
}
