internal static async Task <T> WithErrorTranslationAndProfiling <T>(Func <Task <T> > t, string name, Logger logger)
{
SpannerException translatedException;
try
{
Stopwatch sw = null;
if (logger.LogPerformanceTraces)
{
sw = Stopwatch.StartNew();
}
var result = await t().ConfigureAwait(false);
if (sw != null)
{
logger.LogPerformanceCounterFn($"{name}.Duration", x => sw.ElapsedMilliseconds);
}
return(result);
}
catch (Exception e) when((translatedException = SpannerException.TryTranslateRpcException(e)) != null)
{
throw translatedException;
}
}
/// <summary>
/// Returns true if the exception represents a transient error in Spanner.
/// This indicates that the operation may succeed if it is attempted again.
/// Common errors that can cause this include temporary network interruption
/// or the service being temporarily unavailable.
/// </summary>
/// <returns>True if the exception represents an error that may succeed on a retry.</returns>
public static bool IsTransientSpannerFault(this Exception exception)
{
var spannerException = exception as SpannerException
?? SpannerException.TryTranslateRpcException(exception);
return(spannerException != null && spannerException.IsRetryable);
}
internal static SpannerException TryTranslateRpcException(Exception possibleRpcException)
{
SpannerException spannerException = null;
var aggregateException = possibleRpcException as AggregateException;
var rpcException = possibleRpcException as RpcException;
if (aggregateException?.InnerExceptions != null)
{
spannerException = (SpannerException)aggregateException.InnerExceptions
.FirstOrDefault(x => x is SpannerException);
rpcException = (RpcException)aggregateException.InnerExceptions
.FirstOrDefault(x => x is RpcException);
}
if (rpcException != null)
{
spannerException = new SpannerException(rpcException);
}
return(spannerException);
}
internal static void WithErrorTranslationAndProfiling(Action t, string name, Logger logger)
{
SpannerException translatedException;
try
{
Stopwatch sw = null;
if (logger.LogPerformanceTraces)
{
sw = Stopwatch.StartNew();
}
t();
if (sw != null)
{
logger.LogPerformanceCounterFn($"{name}.Duration", x => sw.ElapsedMilliseconds);
}
}
catch (Exception e) when((translatedException = SpannerException.TryTranslateRpcException(e)) != null)
{
throw translatedException;
}
}