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