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 KVSTORE_OBSERVER_CLIENT_H
17 #define KVSTORE_OBSERVER_CLIENT_H
18 
19 #include <memory>
20 #include "change_notification.h"
21 #include "ikvstore_observer.h"
22 #include "kvstore_observer.h"
23 #include "refbase.h"
24 
25 namespace OHOS {
26 namespace DistributedKv {
27 class KvStoreObserverClient : public KvStoreObserverStub {
28 public:
29     explicit KvStoreObserverClient(std::shared_ptr<KvStoreObserver> kvStoreObserver);
30 
31     ~KvStoreObserverClient();
32 
33     void OnChange(const ChangeNotification &changeNotification) override;
34     void OnChange(const DataOrigin &origin, IKvStoreObserver::Keys &&keys) override;
35 
36 private:
37     static const int MAX_TRY_COUNT = 10;
38 
39     // client is responsible for free it when call UnSubscribeKvStore.
40     std::shared_ptr<KvStoreObserver> kvStoreObserver_;
41 };
42 }  // namespace DistributedKv
43 }  // namespace OHOS
44 #endif  // KVSTORE_OBSERVER_CLIENT_H
45