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"
24 namespace OHOS {
25 namespace Telephony {
26 class StringUtils {
27 public:
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 
37 private:
38     StringUtils();
39     virtual ~StringUtils();
40     static uint16_t HexCharToInt(char c);
41 };
42 } // namespace Telephony
43 } // namespace OHOS
44 #endif