| // 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 BRPC_MONGO_SERVICE_ADAPTOR_H |
| #define BRPC_MONGO_SERVICE_ADAPTOR_H |
| |
| #include "butil/iobuf.h" |
| #include "brpc/input_message_base.h" |
| #include "brpc/shared_object.h" |
| |
| |
| namespace brpc { |
| |
| // custom mongo context. derive this and implement your own functionalities. |
| class MongoContext : public SharedObject { |
| public: |
| virtual ~MongoContext() {} |
| }; |
| |
| // a container of custom mongo context. created by ParseMongoRequest when the first msg comes over |
| // a socket. it lives as long as the socket. |
| class MongoContextMessage : public InputMessageBase { |
| public: |
| MongoContextMessage(MongoContext *context) : _context(context) {} |
| // @InputMessageBase |
| void DestroyImpl() { delete this; } |
| MongoContext* context() { return _context.get(); } |
| |
| private: |
| butil::intrusive_ptr<MongoContext> _context; |
| }; |
| |
| class MongoServiceAdaptor { |
| public: |
| virtual ~MongoServiceAdaptor() = default; |
| |
| // Make an error msg when the cntl fails. If cntl fails, we must send mongo client a msg not |
| // only to indicate the error, but also to finish the round trip. |
| virtual void SerializeError(int response_to, butil::IOBuf* out_buf) const = 0; |
| |
| // Create a custom context which is attached to socket. This func is called only when the first |
| // msg from the socket comes. The context will be destroyed when the socket is closed. |
| virtual MongoContext* CreateSocketContext() const = 0; |
| }; |
| |
| } // namespace brpc |
| |
| |
| #endif |