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 OHOS_ABILITY_RUNTIME_DATAOBS_MGR_SERVICE_H 17 #define OHOS_ABILITY_RUNTIME_DATAOBS_MGR_SERVICE_H 18 19 #include <memory> 20 #include <singleton.h> 21 #include <thread_ex.h> 22 #include <unordered_map> 23 #include "cpp/mutex.h" 24 25 #include "dataobs_mgr_inner.h" 26 #include "dataobs_mgr_inner_ext.h" 27 #include "dataobs_mgr_inner_pref.h" 28 #include "dataobs_mgr_stub.h" 29 #include "iremote_object.h" 30 #include "system_ability.h" 31 #include "task_handler_wrap.h" 32 #include "uri.h" 33 34 namespace OHOS { 35 namespace AAFwk { 36 enum class DataObsServiceRunningState { STATE_NOT_START, STATE_RUNNING }; 37 constexpr char SHARE_PREFERENCES[] = "sharepreferences"; 38 /** 39 * @class DataObsMgrService 40 * DataObsMgrService provides a facility for dataobserver. 41 */ 42 class DataObsMgrService : public SystemAbility, 43 public DataObsManagerStub, 44 public std::enable_shared_from_this<DataObsMgrService> { 45 DECLARE_DELAYED_SINGLETON(DataObsMgrService) 46 DECLEAR_SYSTEM_ABILITY(DataObsMgrService) 47 public: 48 void OnStart() override; 49 void OnStop() override; 50 DataObsServiceRunningState QueryServiceState() const; 51 52 virtual int RegisterObserver(const Uri &uri, sptr<IDataAbilityObserver> dataObserver) override; 53 virtual int UnregisterObserver(const Uri &uri, sptr<IDataAbilityObserver> dataObserver) override; 54 virtual int NotifyChange(const Uri &uri) override; 55 virtual Status RegisterObserverExt(const Uri &uri, sptr<IDataAbilityObserver> dataObserver, 56 bool isDescendants) override; 57 virtual Status UnregisterObserverExt(const Uri &uri, sptr<IDataAbilityObserver> dataObserver) override; 58 virtual Status UnregisterObserverExt(sptr<IDataAbilityObserver> dataObserver) override; 59 virtual Status NotifyChangeExt(const ChangeInfo &changeInfo) override; 60 virtual Status NotifyProcessObserver(const std::string &key, const sptr<IRemoteObject> &observer) override; 61 62 /** 63 * @brief DataObs hidumper. 64 * @param fd Indicates the fd. 65 * @param args Indicates the params. 66 * @return Returns the dump result. 67 */ 68 int Dump(int fd, const std::vector<std::u16string>& args) override; 69 70 private: 71 bool Init(); 72 void Dump(const std::vector<std::u16string>& args, std::string& result) const; 73 void ShowHelp(std::string& result) const; 74 Status DeepCopyChangeInfo(const ChangeInfo &src, ChangeInfo &dst) const; 75 void GetFocusedAppInfo(int32_t &windowId, sptr<IRemoteObject> &abilityToken) const; 76 sptr<IRemoteObject> GetAbilityManagerService() const; 77 private: 78 static constexpr std::uint32_t TASK_COUNT_MAX = 50; 79 ffrt::mutex taskCountMutex_; 80 std::uint32_t taskCount_ = 0; 81 std::shared_ptr<TaskHandlerWrap> handler_; 82 83 DataObsServiceRunningState state_; 84 85 std::shared_ptr<DataObsMgrInner> dataObsMgrInner_; 86 std::shared_ptr<DataObsMgrInnerExt> dataObsMgrInnerExt_; 87 std::shared_ptr<DataObsMgrInnerPref> dataObsMgrInnerPref_; 88 }; 89 } // namespace AAFwk 90 } // namespace OHOS 91 #endif // OHOS_ABILITY_RUNTIME_DATAOBS_MGR_SERVICE_H 92