grpc-web/net/grpc/gateway/codec/proto_encoder.cc

69 lines
2.2 KiB
C++

/**
*
* Copyright 2018 Google LLC
*
* 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
*
* https://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.
*
*/
#include "net/grpc/gateway/codec/proto_encoder.h"
#include <utility>
#include <vector>
#include "google/protobuf/any.pb.h"
#include "net/grpc/gateway/protos/pair.pb.h"
#include "net/grpc/gateway/protos/stream_body.pb.h"
#include "net/grpc/gateway/runtime/constants.h"
#include "net/grpc/gateway/runtime/types.h"
#include "third_party/grpc/include/grpc++/support/byte_buffer.h"
#include "third_party/grpc/include/grpc++/support/slice.h"
#include "third_party/grpc/include/grpc/slice.h"
namespace grpc {
namespace gateway {
ProtoEncoder::ProtoEncoder() {}
ProtoEncoder::~ProtoEncoder() {}
void ProtoEncoder::Encode(grpc::ByteBuffer* input, std::vector<Slice>* result) {
input->Dump(result);
}
void ProtoEncoder::EncodeStatus(const grpc::Status& status,
const Trailers* trailers,
std::vector<Slice>* result) {
google::rpc::Status status_proto;
status_proto.set_code(status.error_code());
status_proto.set_message(status.error_message());
if (trailers != nullptr) {
for (auto& trailer : *trailers) {
::google::protobuf::Any* any = status_proto.add_details();
any->set_type_url(kTypeUrlPair);
Pair pair;
pair.set_first(trailer.first);
pair.set_second(trailer.second.data(), trailer.second.length());
pair.SerializeToString(any->mutable_value());
}
}
grpc_slice status_slice = grpc_slice_malloc(status_proto.ByteSizeLong());
status_proto.SerializeToArray(GPR_SLICE_START_PTR(status_slice),
GPR_SLICE_LENGTH(status_slice));
result->push_back(Slice(status_slice, Slice::STEAL_REF));
}
} // namespace gateway
} // namespace grpc