王通 / gb32960_server · Files

package com.bsth.util;

import java.text.ParseException;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ConvertUtil {
	
	private final static Logger log = LoggerFactory.getLogger(ConvertUtil.class);
	
	private static int parse(char c) {
		if (c >= 'a') {
			return c - 'a' + 10 & 0xF;
		}

		if (c >= 'A') {
			return c - 'A' + 10 & 0xF;
		}

		return c - '0' & 0xF;
	}
	
	public static String bcd2string(byte[] bytes, int start, int len) {
		String temp = "";
		for (int i = 0;i < len;i++) {
			int val = bytes[start + i] & 0xff;
			if (val < 10) temp += 0;
			temp += Integer.toHexString(val);
		}
		
		return temp;
	}
	
	public static byte[] string2bcd(String hexstr) {
		int len = hexstr.length() % 2 == 0 ? hexstr.length() / 2 : hexstr.length() / 2 + 1;
		byte[] b = new byte[len];
		int j = 0;

		for (int i = 0; i < b.length; i++) {
			char c0 = hexstr.charAt(j++);
			char c1 = hexstr.charAt(j++);

			b[i] = ((byte) (parse(c0) << 4 | parse(c1)));
		}

		return b;
	}
	
	public static int bcd2int(byte[] bytes, int start, int len) {
		if (len > 4 || len == 0)
			throw new IllegalArgumentException("bcd2int 字节数不符合要求");
		String temp = "";
		for (int i = 0;i < len;i++) {
			int val = bytes[start + i] & 0xff;
			if (val < 10) temp += 0;
			temp += Integer.toHexString(val);
		}
		return Integer.parseInt(temp);
	}
	
	public static byte[] int2bcd(int val, int len) {
		if (len > 4 || len == 0)
			throw new IllegalArgumentException("int2bcd 字节数不符合要求");
		byte[] result = new byte[len];
		for (int i = len - 1;i > -1;i--) {
			result[i] = (byte)Integer.parseInt(val%100 + "", 16);
			val = val/100;
		}
		return result;
	}
	
	public static long bcd2long(byte[] bytes, int start, int len) {
		if (len > 8 || len == 0)
			throw new IllegalArgumentException("bcd2long 字节数不符合要求");
		String temp = "";
		for (int i = 0;i < len;i++) {
			int val = bytes[start + i] & 0xff;
			if (val < 10) temp += 0;
			temp += Integer.toHexString(val);
		}
		return Long.parseLong(temp);
	}
	
	public static byte[] long2bcd(long val, int len) {
		if (len > 8 || len == 0)
			throw new IllegalArgumentException("long2bcd 字节数不符合要求");
		byte[] result = new byte[len];
		for (int i = len - 1;i > -1;i--) {
			result[i] = (byte)Integer.parseInt(val%100 + "", 16);
			val = val/100;
		}
		return result;
	}
	
	public static String ascii2string(byte[] bytes, int start, int len) {
		return new String(Arrays.copyOfRange(bytes, start, start + len));
	}
	
	public static byte[] string2ascii(String val, int len) {
		byte[] result = new byte[len];
		byte[] bytes = val.getBytes();
		if (bytes.length > len && len != 0)
			throw new IllegalArgumentException("string2ascii 参数不符合要求");
		if (len != 0)
			for (int i = 0, l = bytes.length;i < l;i++) result[i] = bytes[i];
		else return bytes;
		return result;
	}
	
	public static long bcd2timestamp(byte[] bytes, int start) {
		String temp = "20";
		for (int i = 0;i < 6;i++) {
			int val = bytes[start + i] & 0xff;
			if (val < 10) temp += 0;
			temp += Integer.toHexString(val);
		}
		Date date = null;
		try {
			date = DateTime.parse(temp, DateTimeFormat.forPattern("yyyyMMddHHmmss")).toDate();
		} catch (Exception e) {
			log.error("协议中时间数据异常：" + temp);
		}
		if (date != null) return date.getTime();
		return -1;
	}
	
	public static byte[] timestamp2bcd(long val) {
		byte[] result = new byte[6];
		Calendar c = Calendar.getInstance();
		c.setTime(new Date(val));
		result[0] = (byte)(Integer.parseInt(c.get(Calendar.YEAR)%100 + "", 16));
		result[1] = (byte)(Integer.parseInt(c.get(Calendar.MONTH) + 1 + "", 16));
		result[2] = (byte)Integer.parseInt(c.get(Calendar.DAY_OF_MONTH) + "", 16);
		result[3] = (byte)Integer.parseInt(c.get(Calendar.HOUR_OF_DAY) + "", 16);
		result[4] = (byte)Integer.parseInt(c.get(Calendar.MINUTE) + "", 16);
		result[5] = (byte)Integer.parseInt(c.get(Calendar.SECOND) + "", 16);
		return result;
	}
	
	public static byte[] int2hex(int val, int len) {
		if (len < 1)
			throw new IllegalArgumentException("int2hex len 参数不符合要求");
		byte[] result = new byte[len];
		for (int i = 0;i < len;i++) {
			result[len - 1 - i] = (byte)(val%100);
			val = val/100;
		}
		
		return result;
	}

	public static long bytes2timestamp(byte[] bytes, int start) {
		StringBuilder temp = new StringBuilder("20");
		for (int i = 0;i < 6;i++) {
			int val = bytes[start + i] & 0xff;
			if (val < 10) { temp.append(0); }
			temp.append(val);
		}
		Date date = null;
		try {
			date = DateTime.parse(temp.toString(), DateTimeFormat.forPattern("yyyyMMddHHmmss")).toDate();
		} catch (Exception e) {
			log.error("协议中时间数据异常：" + temp);
		}
		if (date != null) { return date.getTime(); }

		return -1;
	}

	public static byte[] timestamp2bytes(long val) {
		byte[] result = new byte[6];
		Calendar c = Calendar.getInstance();
		c.setTime(new Date(val));
		result[0] = (byte)(c.get(Calendar.YEAR)%100);
		result[1] = (byte)(c.get(Calendar.MONTH) + 1);
		result[2] = (byte)c.get(Calendar.DAY_OF_MONTH);
		result[3] = (byte)c.get(Calendar.HOUR_OF_DAY);
		result[4] = (byte)c.get(Calendar.MINUTE);
		result[5] = (byte)c.get(Calendar.SECOND);

		return result;
	}

	public static int bytes2int(byte[] bytes, int start, int len) {
		if (len > 4) { throw new IllegalArgumentException("bytes2int len 参数不符合要求"); }
		if (len == 0) { len = 4; }
		int result = 0;
		for (int i = 0;i < len;i++) {
			result += (bytes[start + i] & 0xff) << (len - i - 1) * 8;
		}

		return result;
	}

	public static String toHexString(byte[] bytes) {
		StringBuilder sb = new StringBuilder();
		for (byte b : bytes) {
			sb.append(String.format("0x%02x ", b));
		}

		return sb.toString();
	}
	
	public static void main(String args[]) {
		for (byte b : int2hex(2231605, 4)){
			System.out.println(b);
		}
	}
}