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101 lines
3.4 KiB
101 lines
3.4 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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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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#include "DumpstateGrpcServer.h"
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#include "ServiceDescriptor.h"
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#include <array>
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#include <iostream>
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#include <unordered_set>
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#include <grpc++/grpc++.h>
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struct GrpcServiceOutputConsumer : public ServiceDescriptor::OutputConsumer {
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using Dest = ::grpc::ServerWriter<dumpstate_proto::DumpstateBuffer>*;
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explicit GrpcServiceOutputConsumer(Dest s) : stream(s) {}
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void Write(char* ptr, size_t len) override {
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dumpstate_proto::DumpstateBuffer dumpstateBuffer;
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dumpstateBuffer.set_buffer(ptr, len);
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stream->Write(dumpstateBuffer);
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}
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Dest stream;
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};
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static std::shared_ptr<::grpc::ServerCredentials> getServerCredentials() {
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// TODO(chenhaosjtuacm): get secured credentials here
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return ::grpc::InsecureServerCredentials();
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}
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static ::grpc::Status toGRpcStatus(const ServiceDescriptor::Error& err) {
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if (err == std::nullopt)
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return ::grpc::Status::OK;
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else
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return ::grpc::Status(::grpc::StatusCode::INTERNAL, *err);
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}
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DumpstateGrpcServer::DumpstateGrpcServer(const std::string& addr, const ServiceSupplier& services)
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: DumpstateServer(services), mServiceAddr(addr) {}
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grpc::Status DumpstateGrpcServer::GetSystemLogs(
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::grpc::ServerContext*, const ::google::protobuf::Empty*,
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::grpc::ServerWriter<dumpstate_proto::DumpstateBuffer>* stream) {
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GrpcServiceOutputConsumer consumer(stream);
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const auto ok = this->DumpstateServer::GetSystemLogs(&consumer);
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return toGRpcStatus(ok);
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}
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grpc::Status DumpstateGrpcServer::GetAvailableServices(
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::grpc::ServerContext*, const ::google::protobuf::Empty*,
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dumpstate_proto::ServiceNameList* serviceList) {
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const auto services = this->DumpstateServer::GetAvailableServices();
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for (const auto& svc : services) serviceList->add_service_names(svc);
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return ::grpc::Status::OK;
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}
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grpc::Status DumpstateGrpcServer::GetServiceLogs(
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::grpc::ServerContext*, const dumpstate_proto::ServiceLogRequest* request,
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::grpc::ServerWriter<dumpstate_proto::DumpstateBuffer>* stream) {
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const auto& serviceName = request->service_name();
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if (serviceName.empty()) {
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return ::grpc::Status::OK;
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}
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GrpcServiceOutputConsumer consumer(stream);
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const auto ok = this->DumpstateServer::GetServiceLogs(serviceName, &consumer);
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return toGRpcStatus(ok);
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}
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void DumpstateGrpcServer::Start() {
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::grpc::ServerBuilder builder;
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builder.RegisterService(this);
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builder.AddListeningPort(mServiceAddr, getServerCredentials());
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std::unique_ptr<::grpc::Server> server(builder.BuildAndStart());
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if (!server) {
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std::cerr << __func__ << ": failed to create the GRPC server, "
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<< "please make sure the configuration and permissions are correct" << std::endl;
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std::abort();
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}
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server->Wait();
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}
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