/// <summary>
/// Calculates the ResourceStringInformation based on the ODataRequest and maxProtocol version to determine if this i
/// </summary>
/// <param name="request">Request to calculate from</param>
/// <param name="maxProtocolVersion">Max Protocol version of the server</param>
/// <param name="expectedErrorMessage">Calculated Version Error information</param>
/// <returns>boolean value of if a Error ResourceString Information was calculated or not</returns>
public bool TryCalculateError(ODataRequest request, DataServiceProtocolVersion maxProtocolVersion, out ExpectedErrorMessage expectedErrorMessage)
{
ExceptionUtilities.CheckArgumentNotNull(request, "request");
expectedErrorMessage = null;
DataServiceProtocolVersion dataServiceVersion = VersionHelper.ConvertToDataServiceProtocolVersion(request.GetHeaderValueIfExists(HttpHeaders.DataServiceVersion));
DataServiceProtocolVersion maxDataServiceVersion = VersionHelper.ConvertToDataServiceProtocolVersion(request.GetHeaderValueIfExists(HttpHeaders.MaxDataServiceVersion));
if (dataServiceVersion == DataServiceProtocolVersion.Unspecified)
{
dataServiceVersion = VersionHelper.CalculateDataServiceVersionIfNotSpecified(maxProtocolVersion, maxDataServiceVersion);
}
if (TryCalculateDataServiceVersionTooHighError(dataServiceVersion, maxProtocolVersion, out expectedErrorMessage))
{
return(true);
}
string contentType = request.GetHeaderValueIfExists(HttpHeaders.ContentType);
string acceptType = request.GetHeaderValueIfExists(HttpHeaders.Accept);
if (contentType == null)
{
contentType = MimeTypes.Any;
}
if (acceptType == null)
{
acceptType = MimeTypes.Any;
}
// Do Uri processing first
if (this.TryCalculateODataUriProcessingError(request, maxDataServiceVersion, maxProtocolVersion, acceptType, out expectedErrorMessage))
{
return(true);
}
// Now check metadata of what the request should look like, will it cause a version bump greater than the DSV
EntitySet expectedEntitySet = null;
if (request.Uri.TryGetExpectedEntitySet(out expectedEntitySet))
{
DataServiceProtocolVersion entitySetUriVersion = CalculateEntitySetUriSegmentRequestVersion(request, expectedEntitySet, maxProtocolVersion, maxDataServiceVersion, contentType);
if (TryCalculateVersionError(entitySetUriVersion, dataServiceVersion, maxProtocolVersion, out expectedErrorMessage))
{
return(true);
}
}
// First ensure that the version is greater than mpv
if (maxProtocolVersion < dataServiceVersion)
{
expectedErrorMessage = new ExpectedErrorMessage(DataServiceRequestVersionMustBeLessThanMPV, dataServiceVersion.ConvertToHeaderFormat(), maxProtocolVersion.ConvertToHeaderFormat());
return(true);
}
// Now review the version of the payload and create the right errors
if (this.TryCalculateODataResponseError(request, dataServiceVersion, maxDataServiceVersion, maxProtocolVersion, out expectedErrorMessage))
{
return(true);
}
// Now check for any errors from reading the payload
return(TryCalculateReaderError(request, dataServiceVersion, this.StringResourceVerifiers, this.MetadataResolver, out expectedErrorMessage));
}