1 // 2 // 3 // Copyright 2018 gRPC authors. 4 // 5 // Licensed under the Apache License, Version 2.0 (the "License"); 6 // you may not use this file except in compliance with the License. 7 // You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 // 17 // 18 19 #include <grpc/support/port_platform.h> 20 #include <grpcpp/ext/channelz_service_plugin.h> 21 #include <grpcpp/impl/server_builder_plugin.h> 22 #include <grpcpp/impl/server_initializer.h> 23 #include <grpcpp/server_builder.h> 24 25 #include <memory> 26 #include <string> 27 28 #include "src/cpp/server/channelz/channelz_service.h" 29 30 namespace grpc { 31 namespace channelz { 32 namespace experimental { 33 34 class ChannelzServicePlugin : public grpc::ServerBuilderPlugin { 35 public: ChannelzServicePlugin()36 ChannelzServicePlugin() : channelz_service_(new grpc::ChannelzService()) {} 37 name()38 std::string name() override { return "channelz_service"; } 39 InitServer(grpc::ServerInitializer * si)40 void InitServer(grpc::ServerInitializer* si) override { 41 si->RegisterService(channelz_service_); 42 } 43 Finish(grpc::ServerInitializer *)44 void Finish(grpc::ServerInitializer* /*si*/) override {} 45 ChangeArguments(const std::string &,void *)46 void ChangeArguments(const std::string& /*name*/, void* /*value*/) override {} 47 has_sync_methods() const48 bool has_sync_methods() const override { 49 if (channelz_service_) { 50 return channelz_service_->has_synchronous_methods(); 51 } 52 return false; 53 } 54 has_async_methods() const55 bool has_async_methods() const override { 56 if (channelz_service_) { 57 return channelz_service_->has_async_methods(); 58 } 59 return false; 60 } 61 62 private: 63 std::shared_ptr<grpc::ChannelzService> channelz_service_; 64 }; 65 66 static std::unique_ptr<grpc::ServerBuilderPlugin> CreateChannelzServicePlugin()67CreateChannelzServicePlugin() { 68 return std::unique_ptr<grpc::ServerBuilderPlugin>( 69 new ChannelzServicePlugin()); 70 } 71 InitChannelzService()72void InitChannelzService() { 73 static struct Initializer { 74 Initializer() { 75 grpc::ServerBuilder::InternalAddPluginFactory( 76 &grpc::channelz::experimental::CreateChannelzServicePlugin); 77 } 78 } initialize; 79 } 80 81 } // namespace experimental 82 } // namespace channelz 83 } // namespace grpc 84