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 CONFIGURATION_HELPER_H 17 #define CONFIGURATION_HELPER_H 18 19 #include <cinttypes> 20 #include <string> 21 22 #include <libxml/parser.h> 23 24 namespace OHOS { 25 namespace Media { 26 namespace VideoProcessingEngine { 27 class ConfigurationHelper { 28 protected: 29 ConfigurationHelper() = default; 30 virtual ~ConfigurationHelper() = default; 31 ConfigurationHelper(const ConfigurationHelper&) = delete; 32 ConfigurationHelper& operator=(const ConfigurationHelper&) = delete; 33 ConfigurationHelper(ConfigurationHelper&&) = delete; 34 ConfigurationHelper& operator=(ConfigurationHelper&&) = delete; 35 36 bool LoadConfigurationFromXml(const std::string& xmlFilePath); 37 38 virtual bool ParseXml(const xmlNode& root); 39 40 const xmlNode* GetElement(const xmlNode& parent, const std::string& tag) const; 41 const xmlNode* GetElementByName(const xmlNode& parent, const std::string& tag, const std::string& name) const; 42 43 const std::string GetElementName(const xmlNode& parent, const std::string& tag) const; 44 const std::string GetElementName(const xmlNode& myself) const; 45 const std::string GetElementText(const xmlNode& parent, const std::string& tag) const; 46 const std::string GetElementText(const xmlNode& myself) const; 47 bool GetElementValue(const xmlNode& parent, const std::string& tag, uint32_t& value) const; 48 bool GetElementValue(const xmlNode& parent, const std::string& tag, int& value) const; 49 bool GetElementValue(const xmlNode& parent, const std::string& tag, uint64_t& value) const; 50 bool GetElementValue(const xmlNode& parent, const std::string& tag, bool& value) const; 51 bool GetElementValue(const xmlNode& parent, const std::string& tag, float& value) const; 52 bool GetElementValue(const xmlNode& parent, const std::string& tag, std::string& value) const; 53 bool GetElementValue(const xmlNode& myself, std::string& value) const; 54 }; 55 } // namespace VideoProcessingEngine 56 } // namespace Media 57 } // namespace OHOS 58 59 #endif /* CONFIGURATION_HELPER_H */ 60