/// <summary>
/// Writes the metadata properties for a resource which can only occur at the end.
/// </summary>
/// <param name="resourceState">The resource state for which to write the metadata properties.</param>
/// <param name="duplicatePropertyNameChecker">The DuplicatePropertyNameChecker to use.</param>
internal void WriteResourceEndMetadataProperties(IODataJsonLightWriterResourceState resourceState, IDuplicatePropertyNameChecker duplicatePropertyNameChecker)
{
Debug.Assert(resourceState != null, "resourceState != null");
ODataResourceBase resource = resourceState.Resource;
var navigationLinkInfo = resource.MetadataBuilder.GetNextUnprocessedNavigationLink();
while (navigationLinkInfo != null)
{
Debug.Assert(resource.MetadataBuilder != null, "resource.MetadataBuilder != null");
navigationLinkInfo.NestedResourceInfo.MetadataBuilder = resource.MetadataBuilder;
this.WriteNavigationLinkMetadata(navigationLinkInfo.NestedResourceInfo, duplicatePropertyNameChecker);
navigationLinkInfo = resource.MetadataBuilder.GetNextUnprocessedNavigationLink();
}
// write "odata.actions" metadata
IEnumerable <ODataAction> actions = resource.Actions;
if (actions != null && actions.Any())
{
this.WriteOperations(actions.Cast <ODataOperation>(), /*isAction*/ true);
}
// write "odata.functions" metadata
IEnumerable <ODataFunction> functions = resource.Functions;
if (functions != null && functions.Any())
{
this.WriteOperations(functions.Cast <ODataOperation>(), /*isAction*/ false);
}
}
/// <summary>
/// Writes the metadata properties for a resource which can only occur at the start.
/// </summary>
/// <param name="resourceState">The resource state for which to write the metadata properties.</param>
internal void WriteResourceStartMetadataProperties(IODataJsonLightWriterResourceState resourceState)
{
Debug.Assert(resourceState != null, "resourceState != null");
ODataResourceBase resource = resourceState.Resource;
// expectedResourceTypeName : if expected is of base type. but the resource real type is derived,
// we need to set the resource type name.
// Writing response: expected type info can be identical with context uri info.
// Writing request: contextUri may not be provided, we always use the type from metadata info.
// From model: if the resource can be found in model.
// From serializationInfo: if user set the serializationInfo for the resource.
string expectedResourceTypeName = null;
if (this.WritingResponse)
{
expectedResourceTypeName = resourceState.GetOrCreateTypeContext(this.WritingResponse).ExpectedResourceTypeName;
}
else
{
if (resourceState.ResourceTypeFromMetadata == null)
{
expectedResourceTypeName = resourceState.SerializationInfo == null
? null
: resourceState.SerializationInfo.ExpectedTypeName;
}
else
{
expectedResourceTypeName = resourceState.ResourceTypeFromMetadata.FullTypeName();
}
}
// Write the "@odata.type": "typename"
string typeName = this.JsonLightOutputContext.TypeNameOracle.GetResourceTypeNameForWriting(
expectedResourceTypeName,
resource,
resourceState.IsUndeclared);
if (typeName != null && !string.Equals(typeName, ODataConstants.ContextUriFragmentUntyped, StringComparison.Ordinal))
{
this.ODataAnnotationWriter.WriteODataTypeInstanceAnnotation(typeName);
}
// Write the "@odata.id": "Entity Id"
Uri id;
if (resource.MetadataBuilder.TryGetIdForSerialization(out id))
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataId);
if (id != null && !resource.HasNonComputedId)
{
id = this.MetadataDocumentBaseUri.MakeRelativeUri(id);
}
this.JsonWriter.WriteValue(id == null ? null : this.UriToString(id));
}
// Write the "@odata.etag": "ETag value"
string etag = resource.ETag;
if (etag != null)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataETag);
this.JsonWriter.WriteValue(etag);
}
}
/// <summary>
/// Writes the metadata properties for a resource which can occur both at the start or at the end.
/// </summary>
/// <param name="resourceState">The resource state for which to write the metadata properties.</param>
/// <remarks>
/// This method will only write properties which were not written yet.
/// </remarks>
internal void WriteResourceMetadataProperties(IODataJsonLightWriterResourceState resourceState)
{
Debug.Assert(resourceState != null, "resourceState != null");
ODataResourceBase resource = resourceState.Resource;
// Write the "@odata.editLink": "edit-link-uri"
Uri editLinkUriValue = resource.EditLink;
if (editLinkUriValue != null && !resourceState.EditLinkWritten)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataEditLink);
this.JsonWriter.WriteValue(this.UriToString(
resource.HasNonComputedEditLink || !editLinkUriValue.IsAbsoluteUri
? editLinkUriValue
: this.MetadataDocumentBaseUri.MakeRelativeUri(editLinkUriValue)));
resourceState.EditLinkWritten = true;
}
// Write the "@odata.readLink": "read-link-uri".
// If readlink is identical to editlink, don't write readlink.
Uri readLinkUriValue = resource.ReadLink;
if (readLinkUriValue != null && readLinkUriValue != editLinkUriValue && !resourceState.ReadLinkWritten)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataReadLink);
this.JsonWriter.WriteValue(this.UriToString(
resource.HasNonComputedReadLink
? readLinkUriValue
: this.MetadataDocumentBaseUri.MakeRelativeUri(readLinkUriValue)));
resourceState.ReadLinkWritten = true;
}
// Write MLE metadata
ODataStreamReferenceValue mediaResource = resource.MediaResource;
if (mediaResource != null)
{
// Write the "@odata.mediaEditLink": "edit-link-uri"
Uri mediaEditLinkUriValue = mediaResource.EditLink;
if (mediaEditLinkUriValue != null && !resourceState.MediaEditLinkWritten)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataMediaEditLink);
this.JsonWriter.WriteValue(this.UriToString(
mediaResource.HasNonComputedEditLink
? mediaEditLinkUriValue
: this.MetadataDocumentBaseUri.MakeRelativeUri(mediaEditLinkUriValue)));
resourceState.MediaEditLinkWritten = true;
}
// Write the "@odata.mediaReadLink": "read-link-uri"
// If mediaReadLink is identical to mediaEditLink, don't write readlink.
Uri mediaReadLinkUriValue = mediaResource.ReadLink;
if (mediaReadLinkUriValue != null && mediaReadLinkUriValue != mediaEditLinkUriValue && !resourceState.MediaReadLinkWritten)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataMediaReadLink);
this.JsonWriter.WriteValue(this.UriToString(
mediaResource.HasNonComputedReadLink
? mediaReadLinkUriValue
: this.MetadataDocumentBaseUri.MakeRelativeUri(mediaReadLinkUriValue)));
resourceState.MediaReadLinkWritten = true;
}
// Write the "@odata.mediaContentType": "content/type"
string mediaContentType = mediaResource.ContentType;
if (mediaContentType != null && !resourceState.MediaContentTypeWritten)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataMediaContentType);
this.JsonWriter.WriteValue(mediaContentType);
resourceState.MediaContentTypeWritten = true;
}
// Write the "@odata.mediaEtag": "ETAG"
string mediaETag = mediaResource.ETag;
if (mediaETag != null && !resourceState.MediaETagWritten)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataMediaETag);
this.JsonWriter.WriteValue(mediaETag);
resourceState.MediaETagWritten = true;
}
}
// TODO: actions
// TODO: functions
// TODO: association links
}
/// <summary>
/// Writes the metadata properties for a resource which can only occur at the start.
/// </summary>
/// <param name="resourceState">The resource state for which to write the metadata properties.</param>
internal void WriteResourceStartMetadataProperties(IODataJsonLightWriterResourceState resourceState)
{
Debug.Assert(resourceState != null, "resourceState != null");
ODataResource resource = resourceState.Resource;
// expectedResourceTypeName : if expected is of base type. but the resource real type is derived,
// we need to set the resource type name.
// Writing response: expected type info can be identical with context uri info.
// Writing request: contextUri may not be provided, we always use the type from metadata info.
// From model: if the resource can be found in model.
// From serializationInfo: if user set the serializationInfo for the resource.
string expectedResourceTypeName = null;
if (this.WritingResponse)
{
expectedResourceTypeName = resourceState.GetOrCreateTypeContext(this.WritingResponse).ExpectedResourceTypeName;
}
else
{
if (resourceState.ResourceTypeFromMetadata == null)
{
expectedResourceTypeName = resourceState.SerializationInfo == null
? null
: resourceState.SerializationInfo.ExpectedTypeName;
}
else
{
expectedResourceTypeName = resourceState.ResourceTypeFromMetadata.FullTypeName();
}
}
// Write the "@odata.type": "typename"
string typeName = this.JsonLightOutputContext.TypeNameOracle.GetResourceTypeNameForWriting(
expectedResourceTypeName,
resource,
resourceState.IsUndeclared);
if (typeName != null)
{
this.ODataAnnotationWriter.WriteODataTypeInstanceAnnotation(typeName);
}
// uncomment the below if decide to expose OData information via .InstanceAnnotations
// else
// {
// // close path for roundtrip :
// // write it to the wire if @odata.type is ever read from payload into Resource.InstanceAnnotations.
// ODataInstanceAnnotation odataTypeAnnotation = resource.InstanceAnnotations.FirstOrDefault(
// s => string.Equals(ODataAnnotationNames.ODataType, s.Name, StringComparison.OrdinalIgnoreCase));
// if (odataTypeAnnotation != null)
// {
// string rawTypeName = (string)odataTypeAnnotation.Value.FromODataValue();
// this.ODataAnnotationWriter.WriteODataTypeInstanceAnnotation(rawTypeName, writeRawValue: true);
// }
// }
// Write the "@odata.id": "Entity Id"
Uri id;
if (resource.MetadataBuilder.TryGetIdForSerialization(out id))
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataId);
if (id != null && !resource.HasNonComputedId)
{
id = this.MetadataDocumentBaseUri.MakeRelativeUri(id);
}
this.JsonWriter.WriteValue(id == null ? null : this.UriToString(id));
}
// Write the "@odata.etag": "ETag value"
string etag = resource.ETag;
if (etag != null)
{
this.ODataAnnotationWriter.WriteInstanceAnnotationName(ODataAnnotationNames.ODataETag);
this.JsonWriter.WriteValue(etag);
}
}