1 // 2 // Copyright (C) 2015 Google, Inc. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at: 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #pragma once 18 19 #include <rapidjson/document.h> 20 21 typedef void (*MFP)(rapidjson::Document&); 22 23 // This class defines the functions that interact with the input JSON and 24 // correspondingly calls the facade associated with the input JSON doc. This 25 // class also contains wrapper functions to the actual SL4N Facades and does 26 // pre-verification before it directly interacts with the facade. The 27 // pre-verification includes matching parameter size and verifying each 28 // parameter type that is expected in the wrapping function. 29 class CommandReceiver { 30 31 public: 32 CommandReceiver(); 33 ~CommandReceiver(); 34 35 static void RegisterCommand(std::string name, MFP command); 36 37 // Function that extracts the method/cmd parameter from the JSON doc and 38 // passes the document to the corresponding wrapper function. 39 void Call(rapidjson::Document& doc); 40 41 }; 42