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 #ifndef OHOS_ROSEN_SETTING_PROVIDER_H
17 #define OHOS_ROSEN_SETTING_PROVIDER_H
18 
19 #include "datashare_helper.h"
20 #include "errors.h"
21 #include "mutex"
22 #include "setting_observer.h"
23 
24 namespace OHOS {
25 namespace Rosen {
26 class SettingProvider : public NoCopyable {
27 public:
28     static SettingProvider& GetInstance(int32_t systemAbilityId);
29     ErrCode GetStringValue(const std::string& key, std::string& value);
30     ErrCode GetIntValue(const std::string& key, int32_t& value);
31     ErrCode GetLongValue(const std::string& key, int64_t& value);
32     ErrCode GetBoolValue(const std::string& key, bool& value);
33     ErrCode PutStringValue(const std::string& key, const std::string& value, bool needNotify = true);
34     ErrCode PutIntValue(const std::string& key, int32_t value, bool needNotify = true);
35     ErrCode PutLongValue(const std::string& key, int64_t value, bool needNotify = true);
36     ErrCode PutBoolValue(const std::string& key, bool value, bool needNotify = true);
37     bool IsValidKey(const std::string& key);
38     sptr<SettingObserver> CreateObserver(const std::string& key, SettingObserver::UpdateFunc& func);
39     static void ExecRegisterCb(const sptr<SettingObserver>& observer);
40     ErrCode RegisterObserver(const sptr<SettingObserver>& observer);
41     ErrCode UnregisterObserver(const sptr<SettingObserver>& observer);
42 
43 protected:
44     ~SettingProvider() override;
45 
46 private:
47     static SettingProvider* instance_;
48     static std::mutex mutex_;
49     static sptr<IRemoteObject> remoteObj_;
50 
51     static void Initialize(int32_t systemAbilityId);
52     static std::shared_ptr<DataShare::DataShareHelper> CreateDataShareHelper();
53     static bool ReleaseDataShareHelper(std::shared_ptr<DataShare::DataShareHelper>& helper);
54     static Uri AssembleUri(const std::string& key);
55 };
56 } // namespace Rosen
57 } // namespace OHOS
58 #endif // OHOS_ROSEN_SETTING_PROVIDER_H
59