69 lines
3.3 KiB
C#
69 lines
3.3 KiB
C#
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using Grpc.Core;
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using Mishima.Nexus.Wire.V1;
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using Robotico.Result.Errors;
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namespace Robotico.Nexus.Client;
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/// <summary>Maps <see cref="NexusStatus"/> wire envelopes and gRPC failures to <see cref="Robotico.Result.Result"/>.</summary>
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internal static class NexusWireStatus
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{
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private const string OkCode = "OK";
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/// <summary>Returns success when <paramref name="status"/> reports <c>OK</c>; otherwise a coded error.</summary>
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internal static Robotico.Result.Result ToResult(NexusStatus? status)
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{
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if (status is null)
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{
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return Robotico.Result.Result.Error(NexusErrors.Error("Nexus response is missing a status envelope.", NexusErrors.WireFailed));
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}
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if (string.Equals(status.Code, OkCode, StringComparison.Ordinal))
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{
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return Robotico.Result.Result.Success();
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}
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string code = string.IsNullOrWhiteSpace(status.Code) ? NexusErrors.WireFailed : status.Code;
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string message = string.IsNullOrWhiteSpace(status.Message) ? "Nexus call failed." : status.Message;
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return Robotico.Result.Result.Error(NexusErrors.Error(message, code));
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}
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/// <summary>Maps status to <see cref="Robotico.Result.Result{T}"/>, carrying <paramref name="value"/> on success.</summary>
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internal static Robotico.Result.Result<T> ToResult<T>(NexusStatus? status, T value)
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{
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Robotico.Result.Result plain = ToResult(status);
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return plain.IsError(out IError? error) ? Robotico.Result.Result.Error<T>(error!) : Robotico.Result.Result.Success(value);
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}
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/// <summary>True when <paramref name="status"/> reports <c>OK</c>.</summary>
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internal static bool IsOk(NexusStatus? status) =>
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status is not null && string.Equals(status.Code, OkCode, StringComparison.Ordinal);
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/// <summary>Maps a failed gRPC call into a coded <see cref="IError"/>.</summary>
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internal static IError FromException(RpcException exception)
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{
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string code = exception.StatusCode switch
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{
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StatusCode.OK => NexusErrors.WireFailed,
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StatusCode.Cancelled => NexusErrors.Unavailable,
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StatusCode.Unknown => NexusErrors.WireFailed,
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StatusCode.InvalidArgument => NexusErrors.InvalidArgument,
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StatusCode.DeadlineExceeded => NexusErrors.Unavailable,
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StatusCode.NotFound => NexusErrors.NotFound,
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StatusCode.AlreadyExists => NexusErrors.AlreadyExists,
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StatusCode.PermissionDenied => NexusErrors.WireFailed,
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StatusCode.ResourceExhausted => NexusErrors.Unavailable,
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StatusCode.FailedPrecondition => NexusErrors.InvalidArgument,
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StatusCode.Aborted => NexusErrors.WireFailed,
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StatusCode.OutOfRange => NexusErrors.InvalidArgument,
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StatusCode.Unimplemented => NexusErrors.WireFailed,
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StatusCode.Internal => NexusErrors.WireFailed,
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StatusCode.Unavailable => NexusErrors.Unavailable,
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StatusCode.DataLoss => NexusErrors.WireFailed,
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StatusCode.Unauthenticated => NexusErrors.WireFailed,
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_ => NexusErrors.WireFailed,
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};
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string detail = string.IsNullOrWhiteSpace(exception.Status.Detail) ? exception.Message : exception.Status.Detail;
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return NexusErrors.Error($"gRPC call failed ({exception.StatusCode}): {detail}", code);
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}
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}
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