/// <summary>Gets a string with methods allowed on the target for the <paramref name="description"/>.</summary>
/// <param name="configuration">configuration object which has the data</param>
/// <param name="description">Description with target.</param>
/// <returns>A string with methods allowed on the description; possibly null.</returns>
internal static string GetAllowedMethods(DataServiceConfiguration configuration, RequestDescription description)
{
Debug.Assert(description != null, "description != null");
Debug.Assert(
description.TargetKind != RequestTargetKind.Nothing,
"description.TargetKind != RequestTargetKind.Void - otherwise it hasn't been determined yet");
Debug.Assert(
description.TargetKind != RequestTargetKind.VoidOperation,
"description.TargetKind != RequestTargetKind.VoidOperation - this method is only for containers");
if (description.TargetKind == RequestTargetKind.Metadata ||
description.TargetKind == RequestTargetKind.ServiceDirectory)
{
return(XmlConstants.HttpMethodGet);
}
if (description.TargetKind == RequestTargetKind.Batch)
{
return(XmlConstants.HttpMethodPost);
}
int index = description.GetIndexOfTargetEntityResource();
Debug.Assert(index >= 0 && index < description.SegmentInfos.Count, "index >=0 && index <description.SegmentInfos.Count");
ResourceSetWrapper container = description.SegmentInfos[index].TargetResourceSet;
return(GetAllowedMethods(configuration, container, description));
}