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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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76 lines
2.7 KiB
76 lines
2.7 KiB
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// Copyright 2017 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// |
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#ifndef GRPCPP_SUPPORT_ERROR_DETAILS_H |
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#define GRPCPP_SUPPORT_ERROR_DETAILS_H |
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#include <grpcpp/support/status.h> |
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namespace grpc { |
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/// Map a \a grpc::Status to a \a google::rpc::Status. |
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/// The given \a to object will be cleared. |
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/// On success, returns status with OK. |
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/// Returns status with \a INVALID_ARGUMENT, if failed to deserialize. |
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/// Returns status with \a FAILED_PRECONDITION, if \a to is nullptr. |
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/// |
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/// \note |
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/// This function is a template to avoid a build dep on \a status.proto. |
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/// However, this function still requires that \tparam T is of type |
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/// \a google::rpc::Status, which is defined at |
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/// https://github.com/googleapis/googleapis/blob/master/google/rpc/status.proto |
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template <typename T> |
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grpc::Status ExtractErrorDetails(const grpc::Status& from, T* to) { |
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if (to == nullptr) { |
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return grpc::Status(grpc::StatusCode::FAILED_PRECONDITION, ""); |
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} |
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if (!to->ParseFromString(from.error_details())) { |
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return grpc::Status(grpc::StatusCode::INVALID_ARGUMENT, ""); |
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} |
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return grpc::Status::OK; |
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} |
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inline grpc::Status ExtractErrorDetails(const grpc::Status&, std::nullptr_t) { |
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return grpc::Status(grpc::StatusCode::FAILED_PRECONDITION, ""); |
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} |
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/// Map \a google::rpc::Status to a \a grpc::Status. |
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/// Returns OK on success. |
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/// Returns status with \a FAILED_PRECONDITION if \a to is nullptr. |
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/// |
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/// \note |
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/// This function is a template to avoid a build dep on \a status.proto. |
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/// However, this function still requires that \tparam T is of type |
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/// \a google::rpc::Status, which is defined at |
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/// https://github.com/googleapis/googleapis/blob/master/google/rpc/status.proto |
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template <typename T> |
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grpc::Status SetErrorDetails(const T& from, grpc::Status* to) { |
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if (to == nullptr) { |
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return grpc::Status(grpc::StatusCode::FAILED_PRECONDITION, ""); |
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} |
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grpc::StatusCode code = grpc::StatusCode::UNKNOWN; |
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if (from.code() >= grpc::StatusCode::OK && |
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from.code() <= grpc::StatusCode::UNAUTHENTICATED) { |
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code = static_cast<grpc::StatusCode>(from.code()); |
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} |
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*to = grpc::Status(code, from.message(), from.SerializeAsString()); |
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return grpc::Status::OK; |
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} |
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} // namespace grpc |
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#endif // GRPCPP_SUPPORT_ERROR_DETAILS_H
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