protected static ODataMessageReader CreateODataMessageReader(IODataResponseMessage responseMessage, ResponseInfo responseInfo, ref ODataPayloadKind payloadKind)
{
ODataMessageReaderSettings settings = responseInfo.ReadHelper.CreateSettings(ReadingEntityInfo.BufferAndCacheEntryPayload);
ODataMessageReader odataMessageReader = responseInfo.ReadHelper.CreateReader(responseMessage, settings);
if (payloadKind == ODataPayloadKind.Unsupported)
{
var payloadKinds = odataMessageReader.DetectPayloadKind().ToList();
if (payloadKinds.Count == 0)
{
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidResponsePayload(responseInfo.DataNamespace));
}
// Pick the first payload kind detected by ODataLib and use that to parse the exception.
// The only exception being payload with entity reference link(s). If one of the payload kinds
// is reference links, then we need to give preference to reference link payloads.
ODataPayloadKindDetectionResult detectionResult = payloadKinds.FirstOrDefault(k => k.PayloadKind == ODataPayloadKind.EntityReferenceLink || k.PayloadKind == ODataPayloadKind.EntityReferenceLinks);
if (detectionResult == null)
{
ODataVersion dataServiceVersion = responseMessage.GetDataServiceVersion(CommonUtil.ConvertToODataVersion(responseInfo.MaxProtocolVersion));
// if its a collection or a Property we should choose collection if its less than V3, this enables older service operations on Execute
if (dataServiceVersion < ODataVersion.V3 && payloadKinds.Any(pk => pk.PayloadKind == ODataPayloadKind.Property) && payloadKinds.Any(pk => pk.PayloadKind == ODataPayloadKind.Collection))
{
detectionResult = payloadKinds.Single(pk => pk.PayloadKind == ODataPayloadKind.Collection);
}
else
{
detectionResult = payloadKinds.First();
}
}
// Astoria client only supports atom, jsonverbose, jsonlight and raw value payloads.
if (detectionResult.Format != ODataFormat.Atom && detectionResult.Format != ODataFormat.VerboseJson && detectionResult.Format != ODataFormat.Json && detectionResult.Format != ODataFormat.RawValue)
{
throw DSClient.Error.InvalidOperation(DSClient.Strings.AtomMaterializer_InvalidContentTypeEncountered(responseMessage.GetHeader(XmlConstants.HttpContentType)));
}
payloadKind = detectionResult.PayloadKind;
}
return(odataMessageReader);
}
