cartographer/cartographer_grpc/framework/rpc_handler_interface.h

60 lines
2.2 KiB
C++

/*
* Copyright 2017 The Cartographer 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 CARTOGRAPHER_GRPC_FRAMEWORK_RPC_HANDLER_INTERFACE_H_H
#define CARTOGRAPHER_GRPC_FRAMEWORK_RPC_HANDLER_INTERFACE_H_H
#include "cartographer_grpc/framework/execution_context.h"
#include "google/protobuf/message.h"
#include "grpc++/grpc++.h"
namespace cartographer_grpc {
namespace framework {
class Rpc;
class RpcHandlerInterface {
public:
virtual ~RpcHandlerInterface() = default;
// Returns the fully qualified name of the gRPC method this handler is
// implementing. The fully qualified name has the structure
// '/<<full service name>>/<<method name>>', where the service name is the
// fully qualified proto package name of the service and method name the name
// of the method as defined in the service definition of the proto.
virtual std::string method_name() const = 0;
virtual void SetExecutionContext(ExecutionContext* execution_context) = 0;
virtual void SetRpc(Rpc* rpc) = 0;
virtual void OnRequestInternal(
const ::google::protobuf::Message* request) = 0;
virtual void OnReadsDone(){};
virtual void OnFinish(){};
};
using RpcHandlerFactory = std::function<std::unique_ptr<RpcHandlerInterface>(
Rpc*, ExecutionContext*)>;
struct RpcHandlerInfo {
const google::protobuf::Descriptor* request_descriptor;
const google::protobuf::Descriptor* response_descriptor;
const RpcHandlerFactory rpc_handler_factory;
const grpc::internal::RpcMethod::RpcType rpc_type;
const std::string fully_qualified_name;
};
} // namespace framework
} // namespace cartographer_grpc
#endif // CARTOGRAPHER_GRPC_FRAMEWORK_RPC_HANDLER_INTERFACE_H_H