1 /* 2 * Copyright (c) 2025 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_DM_DATASAHRE_COMMON_EVENT_H 17 #define OHOS_DM_DATASAHRE_COMMON_EVENT_H 18 19 #include "common_event_manager.h" 20 #include "system_ability_status_change_stub.h" 21 22 namespace OHOS { 23 namespace DistributedHardware { 24 using OHOS::EventFwk::CommonEventData; 25 using OHOS::EventFwk::CommonEventSubscriber; 26 using OHOS::EventFwk::CommonEventSubscribeInfo; 27 using DataShareEventCallback = std::function<void(std::string)>; 28 29 class DmDataShareEventSubscriber : public CommonEventSubscriber { 30 public: DmDataShareEventSubscriber(const CommonEventSubscribeInfo & subscribeInfo,const DataShareEventCallback & callback,const std::vector<std::string> & eventNameVec)31 DmDataShareEventSubscriber(const CommonEventSubscribeInfo &subscribeInfo, const DataShareEventCallback &callback, 32 const std::vector<std::string> &eventNameVec) : CommonEventSubscriber(subscribeInfo), 33 eventNameVec_(eventNameVec), callback_(callback) {} 34 ~DmDataShareEventSubscriber() override = default; 35 std::vector<std::string> GetSubscriberEventNameVec() const; 36 void OnReceiveEvent(const CommonEventData &data) override; 37 38 private: 39 std::vector<std::string> eventNameVec_; 40 DataShareEventCallback callback_; 41 }; 42 43 class DmDataShareCommonEventManager { 44 public: 45 DmDataShareCommonEventManager() = default; 46 ~DmDataShareCommonEventManager(); 47 bool SubscribeDataShareCommonEvent(const std::vector<std::string> &eventNameVec, 48 const DataShareEventCallback &callback); 49 bool UnsubscribeDataShareCommonEvent(); 50 51 private: 52 std::vector<std::string> eventNameVec_; 53 bool eventValidFlag_ = false; 54 std::mutex evenSubscriberMutex_; 55 std::shared_ptr<DmDataShareEventSubscriber> subscriber_ = nullptr; 56 sptr<ISystemAbilityStatusChange> statusChangeListener_ = nullptr; 57 int32_t counter_ = 0; 58 59 private: 60 class SystemAbilityStatusChangeListener : public SystemAbilityStatusChangeStub { 61 public: SystemAbilityStatusChangeListener(std::shared_ptr<DmDataShareEventSubscriber> DataShareSubscriber)62 explicit SystemAbilityStatusChangeListener(std::shared_ptr<DmDataShareEventSubscriber> DataShareSubscriber) 63 : changeSubscriber_(DataShareSubscriber) {} 64 ~SystemAbilityStatusChangeListener() = default; 65 void OnAddSystemAbility(int32_t systemAbilityId, const std::string& deviceId) override; 66 void OnRemoveSystemAbility(int32_t systemAbilityId, const std::string& deviceId) override; 67 68 private: 69 std::shared_ptr<DmDataShareEventSubscriber> changeSubscriber_; 70 }; 71 }; 72 } // namespace DistributedHardware 73 } // namespace OHOS 74 #endif // OHOS_DM_DATASAHRE_COMMON_EVENT_H 75