/// <summary>
/// Translates the specified exception into a storage exception.
/// </summary>
/// <param name="ex">The exception to translate.</param>
/// <param name="reqResult">The request result.</param>
/// <returns>The storage exception.</returns>
public static StorageException TranslateException(Exception ex, RequestResult reqResult)
{
// Dont re-wrap storage exceptions
if (ex is StorageException)
{
return((StorageException)ex);
}
else if (ex is TimeoutException)
{
reqResult.HttpStatusMessage = null;
reqResult.HttpStatusCode = (int)HttpStatusCode.Unused;
reqResult.ExtendedErrorInformation = null;
return(new StorageException(reqResult, ex.Message, ex));
}
else if (ex is ArgumentException)
{
reqResult.HttpStatusMessage = null;
reqResult.HttpStatusCode = (int)HttpStatusCode.Unused;
reqResult.ExtendedErrorInformation = null;
return(new StorageException(reqResult, ex.Message, ex)
{
IsRetryable = false
});
}
#if RT
else if (ex is OperationCanceledException)
{
reqResult.HttpStatusMessage = null;
reqResult.HttpStatusCode = 306; // unused
reqResult.ExtendedErrorInformation = null;
return(new StorageException(reqResult, ex.Message, ex));
}
#elif DNCP
else
{
StorageException tableEx = TableUtilities.TranslateDataServiceClientException(ex, reqResult);
if (tableEx != null)
{
return(tableEx);
}
}
#endif
WebException we = ex as WebException;
if (we != null)
{
try
{
HttpWebResponse response = we.Response as HttpWebResponse;
if (response != null)
{
reqResult.HttpStatusMessage = response.StatusDescription;
reqResult.HttpStatusCode = (int)response.StatusCode;
if (response.Headers != null)
{
#if DNCP
reqResult.ServiceRequestID = HttpUtility.TryGetHeader(response, Constants.HeaderConstants.RequestIdHeader, null);
reqResult.ContentMd5 = HttpUtility.TryGetHeader(response, "Content-MD5", null);
string tempDate = HttpUtility.TryGetHeader(response, "Date", null);
reqResult.RequestDate = string.IsNullOrEmpty(tempDate) ? DateTime.Now.ToString("R", CultureInfo.InvariantCulture) : tempDate;
reqResult.Etag = response.Headers[HttpResponseHeader.ETag];
#endif
}
#if RT
reqResult.ExtendedErrorInformation = StorageExtendedErrorInformation.ReadFromStream(response.GetResponseStream().AsInputStream());
#else
reqResult.ExtendedErrorInformation = StorageExtendedErrorInformation.ReadFromStream(response.GetResponseStream());
#endif
}
}
catch (Exception)
{
// no op
}
}
// Not WebException, just wrap in StorageException
return(new StorageException(reqResult, ex.Message, ex));
}
/// <summary>
/// Translates the specified exception into a storage exception.
/// </summary>
/// <param name="ex">The exception to translate.</param>
/// <param name="reqResult">The request result.</param>
/// <param name="parseError">The delegate used to parse the error to get extended error information.</param>
/// <param name="response">HTTP response message</param>
/// <returns>The storage exception.</returns>
public static StorageException TranslateException(Exception ex, RequestResult reqResult, Func <Stream, StorageExtendedErrorInformation> parseError, HttpResponseMessage response)
{
StorageException storageException;
try
{
if ((storageException = CoreTranslate(ex, reqResult, ref parseError)) != null)
{
return(storageException);
}
if (response != null)
{
StorageException.PopulateRequestResult(reqResult, response);
reqResult.ExtendedErrorInformation = CommonUtility.RunWithoutSynchronizationContext(() => StorageExtendedErrorInformation.ReadFromStream(response.Content.ReadAsStreamAsync().Result));
}
}
catch (Exception)
{
// if there is an error thrown while parsing the service error, just wrap the service error in a StorageException.
// no op
}
// Just wrap in StorageException
return(new StorageException(reqResult, ex.Message, ex));
}