private static void WriteResource(ODataWriterWrapper writer, ODataResourceWrapper resourceWrapper)
{
if (resourceWrapper.Resource == null)
{
writer.WriteStartResource(resourceWrapper.Resource);
}
else
{
writer.WriteStart(resourceWrapper.Resource, resourceWrapper.Instance);
}
if (resourceWrapper.NestedResourceInfoWrappers != null)
{
foreach (var nestedResourceInfoWrapper in resourceWrapper.NestedResourceInfoWrappers)
{
WriteNestedResourceInfo(writer, nestedResourceInfoWrapper);
}
}
if (resourceWrapper.Resource == null)
{
writer.WriteEnd();
}
else
{
writer.WriteEnd(resourceWrapper.Resource, resourceWrapper.Instance);
}
}
private static void WriteNestedResourceInfo(ODataWriterWrapper writer, ODataNestedResourceInfoWrapper nestedResourceInfo)
{
writer.WriteNestedResourceInfoStart(nestedResourceInfo.NestedResourceInfo);
if (nestedResourceInfo.NestedResourceOrResourceSet != null)
{
WriteItem(writer, nestedResourceInfo.NestedResourceOrResourceSet);
}
writer.WriteNestedResourceInfoEnd();
}
private static void WriteResourceSet(ODataWriterWrapper writer, ODataResourceSetWrapper resourceSetWrapper)
{
writer.WriteStart(resourceSetWrapper.ResourceSet);
if (resourceSetWrapper.Resources != null)
{
foreach (var resourceWrapper in resourceSetWrapper.Resources)
{
WriteResource(writer, resourceWrapper);
}
}
writer.WriteEnd();
}
private static void WriteItem(ODataWriterWrapper writer, ODataItemWrapper odataItemWrapper)
{
var odataResourceWrapper = odataItemWrapper as ODataResourceWrapper;
if (odataResourceWrapper != null)
{
WriteResource(writer, odataResourceWrapper);
return;
}
var odataResourceSetWrapper = odataItemWrapper as ODataResourceSetWrapper;
if (odataResourceSetWrapper != null)
{
WriteResourceSet(writer, odataResourceSetWrapper);
}
}
/// <summary>
/// Write the entry element.
/// </summary>
/// <param name="entityDescriptor">The entity.</param>
/// <param name="relatedLinks">Collection of links related to the entity.</param>
/// <param name="requestMessage">The OData request message.</param>
internal void WriteEntry(EntityDescriptor entityDescriptor, IEnumerable <LinkDescriptor> relatedLinks, ODataRequestMessageWrapper requestMessage)
{
ClientEdmModel model = this.requestInfo.Model;
ClientTypeAnnotation entityType = model.GetClientTypeAnnotation(model.GetOrCreateEdmType(entityDescriptor.Entity.GetType()));
using (ODataMessageWriter messageWriter = Serializer.CreateMessageWriter(requestMessage, this.requestInfo, false /*isParameterPayload*/))
{
ODataWriterWrapper entryWriter = ODataWriterWrapper.CreateForEntry(messageWriter, this.requestInfo.Configurations.RequestPipeline);
// Get the server type name using the type resolver or from the entity descriptor
string serverTypeName = this.requestInfo.GetServerTypeName(entityDescriptor);
var entry = CreateODataEntry(entityDescriptor, serverTypeName, entityType, this.requestInfo.Format);
if (serverTypeName == null)
{
serverTypeName = this.requestInfo.InferServerTypeNameFromServerModel(entityDescriptor);
}
IEnumerable <ClientPropertyAnnotation> properties;
if ((!Util.IsFlagSet(this.options, SaveChangesOptions.ReplaceOnUpdate) &&
entityDescriptor.State == EntityStates.Modified &&
entityDescriptor.PropertiesToSerialize.Any()) ||
(Util.IsFlagSet(this.options, SaveChangesOptions.PostOnlySetProperties) &&
entityDescriptor.State == EntityStates.Added))
{
properties = entityType.PropertiesToSerialize().Where(prop => entityDescriptor.PropertiesToSerialize.Contains(prop.PropertyName));
}
else
{
properties = entityType.PropertiesToSerialize();
}
entry.Properties = this.propertyConverter.PopulateProperties(entityDescriptor.Entity, serverTypeName, properties);
entryWriter.WriteStart(entry, entityDescriptor.Entity);
this.WriteNestedComplexProperties(entityDescriptor.Entity, serverTypeName, properties, entryWriter);
if (EntityStates.Added == entityDescriptor.State)
{
this.WriteNestedResourceInfo(entityDescriptor, relatedLinks, entryWriter);
}
entryWriter.WriteEnd(entry, entityDescriptor.Entity);
}
}
/// <summary>
/// Writes a navigation link.
/// </summary>
/// <param name="entityDescriptor">The entity</param>
/// <param name="relatedLinks">The links related to the entity</param>
/// <param name="odataWriter">The ODataWriter used to write the navigation link.</param>
internal void WriteNavigationLink(EntityDescriptor entityDescriptor, IEnumerable<LinkDescriptor> relatedLinks, ODataWriterWrapper odataWriter)
{
// TODO: create instance of odatawriter.
// TODO: send clientType once, so that we dont need entity descriptor
Debug.Assert(EntityStates.Added == entityDescriptor.State, "entity not added state");
Dictionary<string, List<LinkDescriptor>> groupRelatedLinks = new Dictionary<string, List<LinkDescriptor>>(EqualityComparer<string>.Default);
foreach (LinkDescriptor end in relatedLinks)
{
List<LinkDescriptor> linkDescriptorsList = null;
if (!groupRelatedLinks.TryGetValue(end.SourceProperty, out linkDescriptorsList))
{
linkDescriptorsList = new List<LinkDescriptor>();
groupRelatedLinks.Add(end.SourceProperty, linkDescriptorsList);
}
linkDescriptorsList.Add(end);
}
ClientTypeAnnotation clientType = null;
foreach (var grlinks in groupRelatedLinks)
{
if (null == clientType)
{
ClientEdmModel model = this.requestInfo.Model;
clientType = model.GetClientTypeAnnotation(model.GetOrCreateEdmType(entityDescriptor.Entity.GetType()));
}
bool isCollection = clientType.GetProperty(grlinks.Key, false).IsEntityCollection;
bool started = false;
foreach (LinkDescriptor end in grlinks.Value)
{
Debug.Assert(!end.ContentGeneratedForSave, "already saved link");
end.ContentGeneratedForSave = true;
Debug.Assert(null != end.Target, "null is DELETE");
ODataNavigationLink navigationLink = new ODataNavigationLink();
navigationLink.Url = this.requestInfo.EntityTracker.GetEntityDescriptor(end.Target).GetLatestEditLink();
Debug.Assert(Uri.IsWellFormedUriString(UriUtil.UriToString(navigationLink.Url), UriKind.Absolute), "Uri.IsWellFormedUriString(targetEditLink, UriKind.Absolute)");
navigationLink.IsCollection = isCollection;
navigationLink.Name = grlinks.Key;
if (!started)
{
odataWriter.WriteNavigationLinksStart(navigationLink);
started = true;
}
odataWriter.WriteNavigationLinkStart(navigationLink, end.Source, end.Target);
odataWriter.WriteEntityReferenceLink(new ODataEntityReferenceLink() { Url = navigationLink.Url }, end.Source, end.Target);
odataWriter.WriteNavigationLinkEnd(navigationLink, end.Source, end.Target);
}
odataWriter.WriteNavigationLinksEnd();
}
}
/// <summary>
/// Writes a navigation link.
/// </summary>
/// <param name="entityDescriptor">The entity</param>
/// <param name="relatedLinks">The links related to the entity</param>
/// <param name="odataWriter">The ODataWriter used to write the navigation link.</param>
internal void WriteNestedResourceInfo(EntityDescriptor entityDescriptor, IEnumerable <LinkDescriptor> relatedLinks, ODataWriterWrapper odataWriter)
{
// TODO: create instance of odatawriter.
// TODO: send clientType once, so that we dont need entity descriptor
Debug.Assert(EntityStates.Added == entityDescriptor.State, "entity not added state");
Dictionary <string, List <LinkDescriptor> > groupRelatedLinks = new Dictionary <string, List <LinkDescriptor> >(EqualityComparer <string> .Default);
foreach (LinkDescriptor end in relatedLinks)
{
List <LinkDescriptor> linkDescriptorsList = null;
if (!groupRelatedLinks.TryGetValue(end.SourceProperty, out linkDescriptorsList))
{
linkDescriptorsList = new List <LinkDescriptor>();
groupRelatedLinks.Add(end.SourceProperty, linkDescriptorsList);
}
linkDescriptorsList.Add(end);
}
ClientTypeAnnotation clientType = null;
foreach (var grlinks in groupRelatedLinks)
{
if (null == clientType)
{
ClientEdmModel model = this.requestInfo.Model;
clientType = model.GetClientTypeAnnotation(model.GetOrCreateEdmType(entityDescriptor.Entity.GetType()));
}
bool isCollection = clientType.GetProperty(grlinks.Key, UndeclaredPropertyBehavior.ThrowException).IsEntityCollection;
bool started = false;
foreach (LinkDescriptor end in grlinks.Value)
{
Debug.Assert(!end.ContentGeneratedForSave, "already saved link");
end.ContentGeneratedForSave = true;
Debug.Assert(null != end.Target, "null is DELETE");
ODataNestedResourceInfo navigationLink = new ODataNestedResourceInfo();
navigationLink.Url = this.requestInfo.EntityTracker.GetEntityDescriptor(end.Target).GetLatestEditLink();
Debug.Assert(Uri.IsWellFormedUriString(UriUtil.UriToString(navigationLink.Url), UriKind.Absolute), "Uri.IsWellFormedUriString(targetEditLink, UriKind.Absolute)");
navigationLink.IsCollection = isCollection;
navigationLink.Name = grlinks.Key;
if (!started)
{
odataWriter.WriteNestedResourceInfoStart(navigationLink);
started = true;
}
odataWriter.WriteNestedResourceInfoStart(navigationLink, end.Source, end.Target);
odataWriter.WriteEntityReferenceLink(new ODataEntityReferenceLink()
{
Url = navigationLink.Url
}, end.Source, end.Target);
odataWriter.WriteNestedResourceInfoEnd(navigationLink, end.Source, end.Target);
}
odataWriter.WriteNestedResourceInfoEnd();
}
}
/// <summary>
/// Write the instances for the given set of OData nested resource.
/// </summary>
/// <param name="entity">Instance of the resource which is getting serialized.</param>
/// <param name="serverTypeName">The server type name of the entity whose properties are being populated.</param>
/// <param name="properties">The properties to write.</param>
/// <param name="odataWriter">The writer used write the properties.</param>
internal void WriteNestedComplexProperties(object entity, string serverTypeName, IEnumerable <ClientPropertyAnnotation> properties, ODataWriterWrapper odataWriter)
{
Debug.Assert(properties != null, "properties != null");
var populatedProperties = properties.Where(p => p.IsComplex || p.IsComplexCollection);
var nestedComplexProperties = this.propertyConverter.PopulateNestedComplexProperties(entity, serverTypeName, populatedProperties, null);
foreach (var property in nestedComplexProperties)
{
WriteNestedResourceInfo(odataWriter, property);
}
}