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 #define EXPORT __attribute__ ((visibility ("default")))
26 class MimeTypeUtils {
27 public:
28     EXPORT MimeTypeUtils(const MimeTypeUtils&) = delete;
29     EXPORT MimeTypeUtils(MimeTypeUtils&&) = delete;
30     EXPORT MimeTypeUtils& operator=(const MimeTypeUtils&) = delete;
31     EXPORT MimeTypeUtils& operator=(MimeTypeUtils&&) = delete;
32     EXPORT static int32_t InitMimeTypeMap();
33     EXPORT static std::string GetMimeTypeFromExtension(const std::string &extension);
34     EXPORT static std::string GetMimeTypeFromExtension(const std::string &extension,
35         const std::unordered_map<std::string, std::vector<std::string>> &mimeTypeMap);
36     EXPORT static MediaType GetMediaTypeFromMimeType(const std::string &mimeType);
37 
38 private:
39     static void CreateMapFromJson();
40 
41     static std::unordered_map<std::string, std::vector<std::string>> mediaJsonMap_;
42 };
43 }
44 }
45 #endif //OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H
46