internal void ResolveException(string summary, Exception ex, [NotNull] out Status?status, out Exception resolvedException)
{
if (ex is OperationCanceledException)
{
status = (CallTask.IsCompletedSuccessfully) ? CallTask.Result : new Status(StatusCode.Cancelled, string.Empty);
resolvedException = Channel.ThrowOperationCanceledOnCancellation ? ex : CreateRpcException(status.Value);
}
else if (ex is RpcException rpcException)
{
status = rpcException.Status;
resolvedException = CreateRpcException(status.Value);
}
else
{
var exceptionMessage = CommonGrpcProtocolHelpers.ConvertToRpcExceptionMessage(ex);
var statusCode = GrpcProtocolHelpers.ResolveRpcExceptionStatusCode(ex);
status = new Status(statusCode, summary + " " + exceptionMessage, ex);
resolvedException = CreateRpcException(status.Value);
}
}
private bool IsCancellationOrDeadlineException(Exception ex)
{
// Don't log OperationCanceledException if deadline has exceeded
// or the call has been canceled.
if (ex is OperationCanceledException &&
_callTcs.Task.IsCompletedSuccessfully() &&
(_callTcs.Task.Result.StatusCode == StatusCode.DeadlineExceeded || _callTcs.Task.Result.StatusCode == StatusCode.Cancelled))
{
return(true);
}
// Exception may specify RST_STREAM or abort code that resolves to cancellation.
// If protocol error is cancellation and deadline has been exceeded then that
// means the server canceled and the local deadline timer hasn't triggered.
if (GrpcProtocolHelpers.ResolveRpcExceptionStatusCode(ex) == StatusCode.Cancelled)
{
return(true);
}
return(false);
}
/// <summary>
/// Resolve the specified exception to an end-user exception that will be thrown from the client.
/// The resolved exception is normally a RpcException. Returns true when the resolved exception is changed.
/// </summary>
internal bool ResolveException(string summary, Exception ex, [NotNull] out Status?status, out Exception resolvedException)
{
if (ex is OperationCanceledException)
{
status = (CallTask.IsCompletedSuccessfully) ? CallTask.Result : new Status(StatusCode.Cancelled, string.Empty);
if (!Channel.ThrowOperationCanceledOnCancellation)
{
resolvedException = CreateRpcException(status.Value);
return(true);
}
}
else if (ex is RpcException rpcException)
{
status = rpcException.Status;
// If trailers have been set, and the RpcException isn't using them, then
// create new RpcException with trailers. Want to try and avoid this as
// the exact stack location will be lost.
//
// Trailers could be set in another thread so copy to local variable.
var trailers = Trailers;
if (trailers != null && rpcException.Trailers != trailers)
{
resolvedException = CreateRpcException(status.Value);
return(true);
}
}
else
{
var exceptionMessage = CommonGrpcProtocolHelpers.ConvertToRpcExceptionMessage(ex);
var statusCode = GrpcProtocolHelpers.ResolveRpcExceptionStatusCode(ex);
status = new Status(statusCode, summary + " " + exceptionMessage, ex);
resolvedException = CreateRpcException(status.Value);
return(true);
}
resolvedException = ex;
return(false);
}