1 /* 2 * Copyright (c) 2021-2022 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 #ifndef OHOS_FORM_FWK_FORM_CACHE_MGR_H 16 #define OHOS_FORM_FWK_FORM_CACHE_MGR_H 17 18 #include <map> 19 #include <mutex> 20 #include <singleton.h> 21 #include <string> 22 23 namespace OHOS { 24 namespace AppExecFwk { 25 /** 26 * @class FormCacheMgr 27 * Form cache data manager. 28 */ 29 class FormCacheMgr final : public DelayedRefSingleton<FormCacheMgr> { 30 DECLARE_DELAYED_REF_SINGLETON(FormCacheMgr) 31 public: 32 DISALLOW_COPY_AND_MOVE(FormCacheMgr); 33 34 /** 35 * @brief Get form data. 36 * @param formId Form id. 37 * @param data Cache data. 38 * @return Returns true if this function is successfully called; returns false otherwise. 39 */ 40 bool GetData(int64_t formId, std::string &data) const; 41 42 /** 43 * @brief Add form data. 44 * @param formId Form id. 45 * @param data Cache data. 46 * @return Returns true if this function is successfully called; returns false otherwise. 47 */ 48 bool AddData(int64_t formId, const std::string &data); 49 50 /** 51 * @brief Delete form data. 52 * @param formId Form id. 53 * @return Returns true if this function is successfully called; returns false otherwise. 54 */ 55 bool DeleteData(int64_t formId); 56 57 /** 58 * @brief update form data. 59 * @param formId Form id. 60 * @param data Cache data. 61 * @return Returns true if this function is successfully called; returns false otherwise. 62 */ 63 bool UpdateData(int64_t formId, const std::string &data); 64 65 /** 66 * @brief Check if form data is exist or not. 67 * @param formId, Form id. 68 * @return Returns true if this function is successfully called; returns false otherwise. 69 */ 70 bool IsExist(int64_t formId) const; 71 private: 72 mutable std::mutex cacheMutex_; 73 std::map<int64_t, std::string> cacheData_; 74 }; 75 } // namespace AppExecFwk 76 } // namespace OHOS 77 78 #endif // OHOS_FORM_FWK_FORM_CACHE_MGR_H 79