public override void WriteStart(DataServiceODataWriterEntryArgs args)
{
CustomInstanceAnnotationsDescriptor current = new CustomInstanceAnnotationsDescriptor
{
TypeOfAnnotatedItem = typeof(ODataResource),
Parent = writtenItemsStack.Count == 0 ? null : writtenItemsStack.Peek(),
AnnotationsOnStart = new Collection <ODataInstanceAnnotation>(CustomInstanceAnnotationsGenerator.GetAnnotations("AnnotationOnEntry.AddedBeforeWriteStart.").ToList()),
AnnotationsOnEnd = new Collection <ODataInstanceAnnotation>(CustomInstanceAnnotationsGenerator.GetAnnotations("AnnotationOnEntry.AddedAfterWriteStart.").Concat(CustomInstanceAnnotationsGenerator.GetAnnotationsWithTermInMetadata()).ToList()),
};
AnnotatedItemsBaseline.Add(current);
writtenItemsStack.Push(current);
foreach (var annotation in current.AnnotationsOnStart)
{
args.Entry.InstanceAnnotations.Add(annotation);
}
base.WriteStart(args);
foreach (var annotation in current.AnnotationsOnEnd)
{
args.Entry.InstanceAnnotations.Add(annotation);
}
}
public override void WriteStart(DataServiceODataWriterNestedResourceInfoArgs args)
{
var current = new CustomInstanceAnnotationsDescriptor {
TypeOfAnnotatedItem = typeof(ODataNestedResourceInfo)
};
writtenItemsStack.Push(current);
base.WriteStart(args);
}
public static List <CustomInstanceAnnotationsDescriptor> ReadFeedOrEntry(bool isFeed, Uri uri, string contentType, ODataMessageReaderSettings readerSettings, IEdmModel model)
{
var annotationsStack = new Stack <CustomInstanceAnnotationsDescriptor>();
var allAnnotations = new List <CustomInstanceAnnotationsDescriptor>();
var responseMessage = GetResponseMessge(uri, contentType);
using (var messageReader = new ODataMessageReader(responseMessage, readerSettings, model))
{
var reader = isFeed ? messageReader.CreateODataFeedReader() : messageReader.CreateODataEntryReader();
while (reader.Read())
{
switch (reader.State)
{
case ODataReaderState.FeedStart:
case ODataReaderState.EntryStart:
{
var instanceAnnotations = GetItemInstanceAnnotations(reader);
var parent = annotationsStack.Count == 0 ? null : annotationsStack.Peek();
var current = new CustomInstanceAnnotationsDescriptor {
TypeOfAnnotatedItem = reader.Item.GetType(), Parent = parent, AnnotationsOnStart = instanceAnnotations
};
annotationsStack.Push(current);
allAnnotations.Add(current);
break;
}
case ODataReaderState.FeedEnd:
case ODataReaderState.EntryEnd:
{
var instanceAnnotations = GetItemInstanceAnnotations(reader);
var current = annotationsStack.Pop();
current.AnnotationsOnEnd = instanceAnnotations;
break;
}
}
}
}
return(allAnnotations);
}
public override void WriteStart(DataServiceODataWriterFeedArgs args)
{
CustomInstanceAnnotationsDescriptor current;
if (writtenItemsStack.Count == 0)
{
current = new CustomInstanceAnnotationsDescriptor
{
TypeOfAnnotatedItem = typeof(ODataFeed),
Parent = null,
AnnotationsOnStart = new Collection<ODataInstanceAnnotation>(CustomInstanceAnnotationsGenerator.GetAnnotations("AnnotationOnFeed.AddedBeforeWriteStart.").Concat(CustomInstanceAnnotationsGenerator.GetAnnotationsWithTermInMetadata()).ToList()),
AnnotationsOnEnd = new Collection<ODataInstanceAnnotation>(CustomInstanceAnnotationsGenerator.GetAnnotations("AnnotationOnFeed.AddedAfterWriteStart.").ToList()),
};
}
else
{
current = new CustomInstanceAnnotationsDescriptor
{
TypeOfAnnotatedItem = typeof(ODataFeed),
Parent = writtenItemsStack.Peek(),
AnnotationsOnEnd = new Collection<ODataInstanceAnnotation>(),
AnnotationsOnStart = new Collection<ODataInstanceAnnotation>()
};
}
AnnotatedItemsBaseline.Add(current);
writtenItemsStack.Push(current);
foreach (var annotation in current.AnnotationsOnStart)
{
args.Feed.InstanceAnnotations.Add(annotation);
}
base.WriteStart(args);
foreach (var annotation in current.AnnotationsOnEnd)
{
args.Feed.InstanceAnnotations.Add(annotation);
}
}
public static List<CustomInstanceAnnotationsDescriptor> ReadFeedOrEntry(bool isFeed, Uri uri, string contentType, ODataMessageReaderSettings readerSettings, IEdmModel model)
{
var annotationsStack = new Stack<CustomInstanceAnnotationsDescriptor>();
var allAnnotations = new List<CustomInstanceAnnotationsDescriptor>();
var responseMessage = GetResponseMessge(uri, contentType);
using (var messageReader = new ODataMessageReader(responseMessage, readerSettings, model))
{
var reader = isFeed ? messageReader.CreateODataFeedReader() : messageReader.CreateODataEntryReader();
while (reader.Read())
{
switch (reader.State)
{
case ODataReaderState.FeedStart:
case ODataReaderState.EntryStart:
{
var instanceAnnotations = GetItemInstanceAnnotations(reader);
var parent = annotationsStack.Count == 0 ? null : annotationsStack.Peek();
var current = new CustomInstanceAnnotationsDescriptor { TypeOfAnnotatedItem = reader.Item.GetType(), Parent = parent, AnnotationsOnStart = instanceAnnotations };
annotationsStack.Push(current);
allAnnotations.Add(current);
break;
}
case ODataReaderState.FeedEnd:
case ODataReaderState.EntryEnd:
{
var instanceAnnotations = GetItemInstanceAnnotations(reader);
var current = annotationsStack.Pop();
current.AnnotationsOnEnd = instanceAnnotations;
break;
}
}
}
}
return allAnnotations;
}
private static bool IsTopLevelEntryOrEntryOfTopLevelFeed(this CustomInstanceAnnotationsDescriptor annotatedItem)
{
// Not an entry
if (annotatedItem.TypeOfAnnotatedItem != typeof(ODataResource))
{
return(false);
}
// A top level entry
if (annotatedItem.Parent == null)
{
return(true);
}
// An entry of a top level feed
if (annotatedItem.Parent.Parent == null)
{
Assert.IsTrue(annotatedItem.Parent.TypeOfAnnotatedItem == typeof(ODataResourceSet), "Found an entry whose parent is not a feed! Revisit assumptions of top level feed.");
return(true);
}
// All other entries
return(false);
}
private static IEnumerable <ODataInstanceAnnotation> GetExpectedAnnotationsOnStart(this CustomInstanceAnnotationsDescriptor annotatedItem, string contentType, bool hasExpandedNavigationProperties)
{
if (annotatedItem.IsFeedWithStreaming(contentType))
{
return(annotatedItem.AnnotationsOnStart);
}
if (annotatedItem.TypeOfAnnotatedItem == typeof(ODataResource) && hasExpandedNavigationProperties)
{
return(annotatedItem.AnnotationsOnStart);
}
return(annotatedItem.AnnotationsOnStart.Concat(annotatedItem.AnnotationsOnEnd));
}
private static bool IsFeedWithStreaming(this CustomInstanceAnnotationsDescriptor item, string contentType)
{
return(item.TypeOfAnnotatedItem == typeof(ODataResourceSet) && contentType.Contains(MimeTypes.StreamingParameterTrue));
}
public override void WriteStart(DataServiceODataWriterNavigationLinkArgs args)
{
var current = new CustomInstanceAnnotationsDescriptor { TypeOfAnnotatedItem = typeof(ODataNavigationLink) };
writtenItemsStack.Push(current);
base.WriteStart(args);
}
public static List <CustomInstanceAnnotationsDescriptor> ReadFeedOrEntry(bool isFeed, Uri uri, string contentType, ODataMessageReaderSettings readerSettings, IEdmModel model)
{
var annotationsStack = new Stack <CustomInstanceAnnotationsDescriptor>();
var allAnnotations = new List <CustomInstanceAnnotationsDescriptor>();
var responseMessage = GetResponseMessge(uri, contentType);
using (var messageReader = new ODataMessageReader(responseMessage, readerSettings, model))
{
var reader = isFeed ? messageReader.CreateODataResourceSetReader() : messageReader.CreateODataResourceReader();
Stack <bool> isNavigations = new Stack <bool>();
while (reader.Read())
{
switch (reader.State)
{
case ODataReaderState.ResourceStart:
{
var resource = reader.Item as ODataResource;
var parent = annotationsStack.Count == 0 ? null : annotationsStack.Peek();
if (parent != null)
{
parent.hasNestedResourceInfo = true;
}
if (resource != null && (resource.TypeName.EndsWith("Customer") ||
resource.TypeName.EndsWith("Login") ||
resource.TypeName.EndsWith("Message") ||
resource.TypeName.EndsWith("Order")))
{
var instanceAnnotations = resource.InstanceAnnotations.Clone();
var current = new CustomInstanceAnnotationsDescriptor {
TypeOfAnnotatedItem = reader.Item.GetType(), Parent = parent, AnnotationsOnStart = instanceAnnotations
};
annotationsStack.Push(current);
allAnnotations.Add(current);
}
break;
}
case ODataReaderState.ResourceSetStart:
{
var feed = reader.Item as ODataResourceSet;
var instanceAnnotations = feed.InstanceAnnotations.Clone();
var parent = annotationsStack.Count == 0 ? null : annotationsStack.Peek();
if (parent != null)
{
parent.hasNestedResourceInfo = true;
}
var current = new CustomInstanceAnnotationsDescriptor {
TypeOfAnnotatedItem = reader.Item.GetType(), Parent = parent, AnnotationsOnStart = instanceAnnotations
};
annotationsStack.Push(current);
if (isNavigations.Count == 0 || isNavigations.Peek())
{
allAnnotations.Add(current);
}
break;
}
case ODataReaderState.NestedResourceInfoStart:
{
var nestedResource = reader.Item as ODataNestedResourceInfo;
if (nestedResource.Name.Equals("Customer") ||
nestedResource.Name.Equals("Login") ||
nestedResource.Name.Equals("Orders") ||
nestedResource.Name.Equals("SentMessages") ||
nestedResource.Name.Equals("ReceivedMessages"))
{
isNavigations.Push(true);
}
else
{
isNavigations.Push(false);
}
break;
}
case ODataReaderState.ResourceEnd:
{
var resource = reader.Item as ODataResource;
if (resource != null && (resource.TypeName.EndsWith("Customer") ||
resource.TypeName.EndsWith("Login") ||
resource.TypeName.EndsWith("Message") ||
resource.TypeName.EndsWith("Order")))
{
var instanceAnnotations = resource.InstanceAnnotations.Clone();
var current = annotationsStack.Pop();
current.AnnotationsOnEnd = instanceAnnotations;
}
break;
}
case ODataReaderState.ResourceSetEnd:
{
var feed = reader.Item as ODataResourceSet;
var instanceAnnotations = feed.InstanceAnnotations.Clone();
var current = annotationsStack.Pop();
if (isNavigations.Count == 0 || isNavigations.Peek())
{
current.AnnotationsOnEnd = instanceAnnotations;
}
break;
}
case ODataReaderState.NestedResourceInfoEnd:
{
isNavigations.Pop();
break;
}
}
}
}
return(allAnnotations);
}