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
16 #include "checker_manager.h"
17
18 namespace OHOS {
19 namespace UDMF {
20 const std::string DATA_CHECKER = "DataChecker";
GetInstance()21 CheckerManager &CheckerManager::GetInstance()
22 {
23 static CheckerManager instance;
24 return instance;
25 }
26
RegisterChecker(const std::string & checker,std::function<Checker * ()> getter)27 void CheckerManager::RegisterChecker(const std::string &checker, std::function<Checker *()> getter)
28 {
29 getters_.ComputeIfAbsent(checker, [&getter](const auto &) {
30 return move(getter);
31 });
32 }
33
LoadCheckers()34 void CheckerManager::LoadCheckers()
35 {
36 getters_.ForEach([this] (const auto &key, const auto &val) {
37 if (this->checkers_.find(key) != this->checkers_.end()) {
38 return false;
39 }
40 auto *checker = val();
41 if (checker == nullptr) {
42 return false;
43 }
44 this->checkers_[key] = checker;
45 return false;
46 });
47 }
48
IsValid(const std::vector<Privilege> & privileges,const CheckInfo & info)49 bool CheckerManager::IsValid(const std::vector<Privilege> &privileges, const CheckInfo &info)
50 {
51 auto it = checkers_.find(DATA_CHECKER);
52 if (it == checkers_.end()) {
53 return true;
54 }
55 if (it->second == nullptr) {
56 return false;
57 }
58 return it->second->IsValid(privileges, info);
59 }
60 } // namespace UDMF
61 } // namespace OHOS
62