1 /* 2 * Copyright (C) 2020 The Android Open Source Project 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 <map> 20 #include <optional> 21 22 #include <json/json.h> 23 24 namespace cuttlefish { 25 namespace webrtc_streaming { 26 27 class ValidationResult { 28 public: 29 ValidationResult() = default; ValidationResult(const std::string & error)30 ValidationResult(const std::string &error) : error_(error) {} 31 32 // Helper method to ensure a json object has the required fields convertible 33 // to the appropriate types. 34 static ValidationResult ValidateJsonObject( 35 const Json::Value &obj, const std::string &type, 36 const std::map<std::string, Json::ValueType> &required_fields, 37 const std::map<std::string, Json::ValueType> &optional_fields = {}); 38 ok()39 bool ok() const { return !error_.has_value(); } error()40 std::string error() const { return error_.value_or(""); } 41 42 private: 43 std::optional<std::string> error_; 44 }; 45 46 } // namespace webrtc_streaming 47 } // namespace cuttlefish 48