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 OBSERVER_HANDLER_H 17 #define OBSERVER_HANDLER_H 18 19 #include <unordered_map> 20 #include "event_handler.h" 21 #include "telephony_log_wrapper.h" 22 23 namespace OHOS { 24 namespace Telephony { 25 class ObserverHandler { 26 public: 27 ObserverHandler(); 28 29 virtual ~ObserverHandler(); 30 31 void RegObserver(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler); 32 33 void RegUniqueObserver(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler); 34 35 void Remove(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler); 36 37 void RemoveAll(); 38 39 void NotifyObserver(int32_t what); 40 NotifyObserver(int32_t what,int64_t param)41 void NotifyObserver(int32_t what, int64_t param) 42 { 43 auto iter = observerHandlerMap_.find(what); 44 if (iter == observerHandlerMap_.end()) { 45 TELEPHONY_LOGE("ObserverHandler NotifyObserver %{public}d not register", what); 46 return; 47 } 48 49 for (auto handlers : iter->second) { 50 handlers->SendEvent(what, param, 0); 51 } 52 } 53 54 template<typename T> NotifyObserver(int32_t what,std::shared_ptr<T> object)55 void NotifyObserver(int32_t what, std::shared_ptr<T> object) 56 { 57 auto iter = observerHandlerMap_.find(what); 58 if (iter == observerHandlerMap_.end()) { 59 TELEPHONY_LOGE("ObserverHandler NotifyObserver %{public}d not register", what); 60 return; 61 } 62 for (auto handlers : iter->second) { 63 handlers->SendEvent(what, object); 64 } 65 } 66 67 private: 68 std::unordered_map<int32_t, std::list<std::shared_ptr<AppExecFwk::EventHandler>>> observerHandlerMap_; 69 }; 70 } // namespace Telephony 71 } // namespace OHOS 72 #endif // OBSERVER_HANDLER_H 73