1 /*
2  * Copyright (c) 2024 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 
16 #ifndef LOADER_RENDER_DATA_LOADER_H
17 #define LOADER_RENDER_DATA_LOADER_H
18 
19 #include <base/containers/string_view.h>
20 #include <core/namespace.h>
21 #include <render/namespace.h>
22 
23 CORE_BEGIN_NAMESPACE()
24 class IFileManager;
25 class IDirectory;
26 CORE_END_NAMESPACE()
27 RENDER_BEGIN_NAMESPACE()
28 class IRenderDataStorePod;
29 
30 /** RenderDataLoader.
31  * A class that can be used to load all render data configuration from renderdataconfigurations://.
32  */
33 class RenderDataLoader {
34 public:
35     static constexpr char const* const RENDER_CONFIG_PATH = "renderdataconfigurations://";
36     static constexpr char const* const POST_PROCESS_PATH = "postprocess";
37 
38     /** Constructor.
39      * @param fileManager File manager to be used when loading files.
40      */
41     explicit RenderDataLoader(CORE_NS::IFileManager& fileManager);
42 
43     ~RenderDataLoader() = default;
44 
45     /** Looks for json files under pathPrefix + RENDER_CONFIG_PATH, parses them, and loads the files. */
46     void Load(BASE_NS::string_view pathPrefix, IRenderDataStorePod& renderDataStorePod);
47 
48 private:
49     CORE_NS::IFileManager& fileManager_;
50 
51     enum class ConfigurationType : uint8_t {
52         POST_PROCESS = 0,
53     };
54 
55     void RecurseDirectory(BASE_NS::string_view currentPath, const CORE_NS::IDirectory& dir,
56         const ConfigurationType configurationType, IRenderDataStorePod& renderDataStorePod);
57 };
58 RENDER_END_NAMESPACE()
59 
60 #endif // LOADER_RENDER_DATA_LOADER_H
61