1 /*
2  * Copyright (C) 2021 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 IMPL_CLASS_MGR_H
17 #define IMPL_CLASS_MGR_H
18 
19 #include <list>
20 #include <string>
21 #include "json.hpp"
22 #include "nocopyable.h"
23 #include "plugin_common_type.h"
24 #include "plugin_errors.h"
25 #include "pointer_key_map.h"
26 #include "priority_scheme.h"
27 #include "singleton.h"
28 
29 namespace OHOS {
30 namespace MultimediaPlugin {
31 class ImplClass;
32 class Plugin;
33 class PluginClassBase;
34 
35 class ImplClassMgr final : public NoCopyable {
36 public:
37     uint32_t AddClass(std::weak_ptr<Plugin> &plugin, const nlohmann::json &classInfo);
38     void DeleteClass(const std::weak_ptr<Plugin> &plugin);
39     PluginClassBase *CreateObject(uint16_t interfaceID, const std::string &className, uint32_t &errorCode);
40     PluginClassBase *CreateObject(uint16_t interfaceID, uint16_t serviceType,
41                                   const std::map<std::string, AttrData> &capabilities,
42                                   const PriorityScheme &priorityScheme, uint32_t &errorCode);
43     uint32_t ImplClassMgrGetClassInfo(uint16_t interfaceID, uint16_t serviceType,
44                           const std::map<std::string, AttrData> &capabilities, std::vector<ClassInfo> &classesInfo);
45     std::shared_ptr<ImplClass> GetImplClass(const std::string &packageName, const std::string &className);
46     DECLARE_DELAYED_REF_SINGLETON(ImplClassMgr);
47 
48 private:
49     std::shared_ptr<ImplClass> SearchByPriority(const std::list<std::shared_ptr<ImplClass>> &candidates,
50                                                 const PriorityScheme &priorityScheme);
51     std::shared_ptr<ImplClass> SearchSimplePriority(const std::list<std::shared_ptr<ImplClass>> &candidates);
52     uint32_t ComparePriority(const AttrData &lhs, const AttrData &rhs, PriorityType type);
53     uint32_t CompareBoolPriority(const AttrData &lhs, const AttrData &rhs, PriorityType type);
54     uint32_t CompareUint32Priority(const AttrData &lhs, const AttrData &rhs, PriorityType type);
55     uint32_t CompareStringPriority(const AttrData &lhs, const AttrData &rhs, PriorityType type);
56 
57     using NameClassMultimap = PointerKeyMultimap<const std::string, std::shared_ptr<ImplClass>>;
58     using ServiceClassMultimap = std::multimap<uint32_t, std::shared_ptr<ImplClass>>;
59     NameClassMultimap classMultimap_;
60     ServiceClassMultimap srvSearchMultimap_;
61 };
62 } // namespace MultimediaPlugin
63 } // namespace OHOS
64 
65 #endif // IMPL_CLASS_MGR_H
66