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 STRING_UTILS_H 17#define STRING_UTILS_H 18 19#include <string> 20#include <vector> 21 22#include "cstdint" 23#include "iosfwd" 24namespace OHOS { 25namespace Telephony { 26class StringUtils { 27public: 28 static std::string StringToHex(const std::string &data); 29 static std::string HexToString(const std::string &str); 30 static std::string StringToHex(const char *data, int byteLength); 31 static std::string ToUtf8(const std::u16string &str16); 32 static std::u16string ToUtf16(const std::string &str); 33 static std::string StringToHex(const std::vector<uint8_t> &data); 34 static std::vector<uint8_t> HexToByteVector(const std::string &str); 35 static bool IsEmpty(const std::string &str); 36 37private: 38 StringUtils(); 39 virtual ~StringUtils(); 40 static uint16_t HexCharToInt(char c); 41}; 42} // namespace Telephony 43} // namespace OHOS 44#endif