1 /* 2 * Copyright (C) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H 16 #define OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H 17 18 #include <unordered_map> 19 20 #include "nlohmann/json.hpp" 21 #include "userfile_manager_types.h" 22 23 namespace OHOS { 24 namespace Media { 25 class MimeTypeUtils { 26 public: 27 MimeTypeUtils(const MimeTypeUtils&) = delete; 28 MimeTypeUtils(MimeTypeUtils&&) = delete; 29 MimeTypeUtils& operator=(const MimeTypeUtils&) = delete; 30 MimeTypeUtils& operator=(MimeTypeUtils&&) = delete; 31 static int32_t InitMimeTypeMap(); 32 static std::string GetMimeTypeFromExtension(const std::string &extension); 33 static std::string GetMimeTypeFromExtension(const std::string &extension, 34 const std::unordered_map<std::string, std::vector<std::string>> &mimeTypeMap); 35 static MediaType GetMediaTypeFromMimeType(const std::string &mimeType); 36 37 private: 38 static void CreateMapFromJson(); 39 40 static std::unordered_map<std::string, std::vector<std::string>> mediaJsonMap_; 41 }; 42 } 43 } 44 #endif //OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H 45