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 OHOS_DISTRIBUTED_DATA_PASTEBOARD_ADAPTER_DATA_SHARE_DELEGATE_H
17 #define OHOS_DISTRIBUTED_DATA_PASTEBOARD_ADAPTER_DATA_SHARE_DELEGATE_H
18 
19 #include <cstdint>
20 #include <memory>
21 #include <shared_mutex>
22 #include "datashare_helper.h"
23 
24 namespace OHOS::MiscServices {
25 using ChangeInfo = DataShare::DataShareObserver::ChangeInfo;
26 class DataShareDelegate {
27 public:
28     static DataShareDelegate& GetInstance();
29     int32_t RegisterObserver(const std::string& key, sptr<AAFwk::IDataAbilityObserver> observer);
30     int32_t UnregisterObserver(const std::string& key, sptr<AAFwk::IDataAbilityObserver> observer);
31     int32_t GetValue(const std::string& key, std::string& value);
32 
33 private:
34     DataShareDelegate() = default;
35     ~DataShareDelegate() = default;
36     DISALLOW_COPY_AND_MOVE(DataShareDelegate);
37 
38     static void Initialize();
39     bool ReleaseDataShareHelper(std::shared_ptr<DataShare::DataShareHelper> helper);
40     std::shared_ptr<DataShare::DataShareHelper> CreateDataShareHelper();
41     Uri MakeUri(const std::string& key);
42 
43     static std::mutex mutex_;
44     static DataShareDelegate* instance_;
45     static sptr<IRemoteObject> remoteObj_;
46 };
47 } // namespace OHOS::MiscServices
48 
49 #endif // OHOS_DISTRIBUTED_DATA_PASTEBOARD_ADAPTER_DATA_SHARE_DELEGATE_H