public static bool IsProblemTimeout(this global::Azure.RequestFailedException exception)
{
if (exception.InnerException is System.Net.WebException)
{
var webEx = (System.Net.WebException)exception.InnerException;
return(webEx.Status == System.Net.WebExceptionStatus.Timeout);
}
if (408 == (int)exception.GetHttpStatusCode()) // RequestInformation.HttpStatusCode)
{
return(true);
}
return(false);
}
public static bool IsProblemDoesNotExist(this global::Azure.RequestFailedException exception)
{
return(exception.ParseExtendedErrorInformation(
(errorCode, message) =>
{
if (errorCode == ExtendedErrorInformationCodes.TableNotFound)
{
return true;
}
if (errorCode == ExtendedErrorInformationCodes.BlobNotFound)
{
return true;
}
if (errorCode == ExtendedErrorInformationCodes.Other)
{
if ("ContainerNotFound".Equals(exception.ErrorCode, StringComparison.OrdinalIgnoreCase))
{
return true;
}
}
return false;
},
() =>
{
if (exception.GetHttpStatusCode() == HttpStatusCode.NotFound)
{
return true;
}
if (exception.InnerException is System.Net.WebException)
{
var webEx = (System.Net.WebException)exception.InnerException;
if (webEx.Response is System.Net.HttpWebResponse)
{
var httpResponse = (System.Net.HttpWebResponse)webEx.Response;
return (httpResponse.StatusCode == System.Net.HttpStatusCode.NotFound);
}
}
return false;
}));
}
public static Task <TResult> ResolveCreate <TResult>(this global::Azure.RequestFailedException exception,
CloudTable table,
Func <TResult> retry,
Func <ExtendedErrorInformationCodes, string, TResult> onFailure = default,
Func <TResult> onAlreadyExists = default,
AzureStorageDriver.RetryDelegate onTimeout = default)
{
return(exception.ParseStorageException(
onEntityAlreadyExists: (msg) =>
{
if (!onAlreadyExists.IsDefaultOrNull())
{
return onAlreadyExists().AsTask();
}
throw new ExtendedErrorInformationException(ExtendedErrorInformationCodes.EntityAlreadyExists, msg);
},
onNotFound: async(msg) => // IsProblemTableDoesNotExist
{
try
{
await table.CreateIfNotExistsAsync();
return retry();
}
catch (global::Azure.RequestFailedException createEx)
{
// Catch bug with azure storage table client library where
// if two resources attempt to create the table at the same
// time one gets a precondtion failed error.
System.Threading.Thread.Sleep(1000);
return retry();
}
catch (Exception) { throw; };
},
onTimeout: async(msg) => // IsProblemTimeout
{
if (onTimeout.IsDefaultOrNull())
{
onTimeout = AzureStorageDriver.GetRetryDelegate();
}
bool shouldRetry = false;
await onTimeout((int)exception.GetHttpStatusCode(), exception,
() =>
{
shouldRetry = true;
return 1.AsTask();
});
if (shouldRetry)
{
return retry();
}
throw exception;
},
onDefaultCallback:
(error, msg) =>
{
if (!onFailure.IsDefaultOrNull())
{
return onFailure(error, msg).AsTask();
}
throw new ExtendedErrorInformationException(error, msg);
}));
}
