linux_door/jni/include/utils/ByteUtil.h

#ifndef _UTILS_TIME_BYTE_UTIL_H_
#define _UTILS_TIME_BYTE_UTIL_H_

#include <string>
#include <iostream>
#include <sstream>


/**
 * @brief 字节操作类
 */
class ByteUtil {
public:
	static void copyUnsignedCharArray(unsigned char* source, unsigned char destination[], size_t size) {
	    std::copy(source, source + size, destination);
	}

	static void copyUnsignedCharArray(unsigned char* source, unsigned char* destination, size_t size, size_t& offset) {
	    // 确保不超出目标数组的界限
	    size_t remainingSize = offset + size > 1024 ? 1024 - offset : size;
	    if (remainingSize > 0) {
	        std::copy(source, source + remainingSize, destination + offset);
	        offset += remainingSize; // 更新偏移量
	    }
	}

//	std::string byteToString(const unsigned char* bytes, unsigned long int length) {
//	    return std::string(reinterpret_cast<const char*>(bytes), length);
//	}

	static std::string byteToString(const unsigned char* data, size_t size) {
	    std::string result;

	    // 将每个 unsigned char 转换为 char 并添加到结果字符串中
	    for (size_t i = 0; i < size; ++i) {
	        result += static_cast<char>(data[i]);
	    }

	    return result;
	}

	static std::string convertToString(const unsigned char* data, size_t size) {
        std::string dataStr = "";
		for (int i = 0; i < size; ++i) {
            char buf[1024];
			sprintf(buf, "%02x", data[i]);
			dataStr += buf;
		}
	    return dataStr;
	}

	static unsigned char stringToByte(const std::string& str) {
	    std::stringstream ss;
	    ss << std::hex << str;
	    unsigned int intValue;
	    ss >> intValue;
	    return static_cast<unsigned char>(intValue);
	}


	static std::string timestampToHex(int timestamp) {
	    std::stringstream ss;
	    ss << std::hex << timestamp;
	    return ss.str();
	}


	static std::string timestampToHex(time_t timestamp) {
	    std::stringstream ss;
	    ss << std::hex << timestamp;
	    return ss.str();
	}

};

#endif /* _UTILS_TIME_BYTE_UTIL_H_ */