| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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 KUDU_RPC_SERVICE_IF_H |
| #define KUDU_RPC_SERVICE_IF_H |
| |
| #include <string> |
| |
| #include "kudu/gutil/macros.h" |
| #include "kudu/gutil/ref_counted.h" |
| #include "kudu/util/metrics.h" |
| #include "kudu/util/net/sockaddr.h" |
| |
| namespace google { |
| namespace protobuf { |
| class Message; |
| } |
| } |
| |
| namespace kudu { |
| |
| class Histogram; |
| |
| namespace rpc { |
| |
| class InboundCall; |
| |
| struct RpcMethodMetrics { |
| RpcMethodMetrics(); |
| ~RpcMethodMetrics(); |
| |
| scoped_refptr<Histogram> handler_latency; |
| }; |
| |
| // Handles incoming messages that initiate an RPC. |
| class ServiceIf { |
| public: |
| virtual ~ServiceIf(); |
| virtual void Handle(InboundCall* incoming) = 0; |
| virtual void Shutdown(); |
| virtual std::string service_name() const = 0; |
| |
| // The service should return true if it supports the provided application |
| // specific feature flag. |
| virtual bool SupportsFeature(uint32_t feature) const; |
| |
| protected: |
| bool ParseParam(InboundCall* call, google::protobuf::Message* message); |
| void RespondBadMethod(InboundCall* call); |
| |
| }; |
| |
| } // namespace rpc |
| } // namespace kudu |
| #endif |