util.java

类似QQ的功能

					continue;
			}

			for (int j = 0; j < seqLen; j++)
			{
				if (len == 0)
					return false;
				bt = array[i++];
				if ((bt & 0xC0) != 0x80)
					return false;
				len--;
			}
			if (len == 0)
				break;
		}
		return true;
	}

	//#sijapp cond.if modules_TRAFFIC is "true" #
	// Returns String value of cost value
	public static String intToDecimal(int value)
	{
		String costString = "";
		String afterDot = "";
		try
		{
			if (value != 0)
			{
				costString = Integer.toString(value / 10000) + ".";
				afterDot = Integer.toString(value % 10000);
				while (afterDot.length() != 4)
				{
					afterDot = "0" + afterDot;
				}
				while ((afterDot.endsWith("0")) && (afterDot.length() > 2))
				{
					afterDot = afterDot.substring(0, afterDot.length() - 1);
				}
				costString = costString + afterDot;
				return costString;
			} else
			{
				return new String("0.0");
			}
		} catch (Exception e)
		{
			return new String("0.0");
		}
	}

	// Extracts the number value from String
	public static int decimalToInt(String string)
	{
		int value = 0;
		byte i = 0;
		char c = new String(".").charAt(0);
		try
		{
			for (i = 0; i < string.length(); i++)
			{
				if (c != string.charAt(i))
				{
					break;
				}
			}
			if (i == string.length() - 1)
			{
				value = Integer.parseInt(string) * 10000;
				return (value);
			} else
			{
				while (c != string.charAt(i))
				{
					i++;
				}
				value = Integer.parseInt(string.substring(0, i)) * 10000;
				string = string.substring(i + 1, string.length());
				while (string.length() > 4)
				{
					string = string.substring(0, string.length() - 1);
				}
				while (string.length() < 4)
				{
					string = string + "0";
				}
				value = value + Integer.parseInt(string);
				return value;
			}
		} catch (Exception e)
		{
			return (0);
		}
	}

	//#sijapp cond.end#

	// Convert gender code to string
	static public String genderToString(int gender)
	{
		switch (gender)
		{
		case 1:
			return ResourceBundle.getString("female");
		case 2:
			return ResourceBundle.getString("male");
		}
		return new String();
	}

	static public int stringToGender(String gender)
	{
		if (gender == ResourceBundle.getString("female"))
			return 1;
		else if (gender == ResourceBundle.getString("male"))
			return 2;
		return 0;
	}

	// Converts an Unicode string into CP1251 byte array
	public static byte[] stringToByteArray1251(String s)
	{
		byte abyte0[] = s.getBytes();
		char c;
		for (int i = 0; i < s.length(); i++)
		{
			c = s.charAt(i);
			switch (c)
			{
			case 1025:
				abyte0[i] = -88;
				break;
			case 1105:
				abyte0[i] = -72;
				break;

			/* Ukrainian CP1251 chars section */
			case 1168:
				abyte0[i] = -91;
				break;
			case 1028:
				abyte0[i] = -86;
				break;
			case 1031:
				abyte0[i] = -81;
				break;
			case 1030:
				abyte0[i] = -78;
				break;
			case 1110:
				abyte0[i] = -77;
				break;
			case 1169:
				abyte0[i] = -76;
				break;
			case 1108:
				abyte0[i] = -70;
				break;
			case 1111:
				abyte0[i] = -65;
				break;
			/* end of section */

			default:
				char c1 = c;
				if (c1 >= '\u0410' && c1 <= '\u044F')
				{
					abyte0[i] = (byte) ((c1 - 1040) + 192);
				}
				break;
			}
		}
		return abyte0;
	}

	// Converts an CP1251 byte array into an Unicode string
	public static String byteArray1251ToString(byte abyte0[], int i, int j)
	{
		StringBuffer stringbuffer = new StringBuffer(j);
		int l;
		for (int k = 0; k < j; k++)
		{
			l = abyte0[k + i] & 0xff;
			try
			{
				switch (l)
				{
				case 168:
					stringbuffer.append('\u0401');
					break;
				case 184:
					stringbuffer.append('\u0451');
					break;

				/* Ukrainian CP1251 chars section */
				case 165:
					stringbuffer.append('\u0490');
					break;
				case 170:
					stringbuffer.append('\u0404');
					break;
				case 175:
					stringbuffer.append('\u0407');
					break;
				case 178:
					stringbuffer.append('\u0406');
					break;
				case 179:
					stringbuffer.append('\u0456');
					break;
				case 180:
					stringbuffer.append('\u0491');
					break;
				case 186:
					stringbuffer.append('\u0454');
					break;
				case 191:
					stringbuffer.append('\u0457');
					break;
				/* end of section */

				default:
					if (l >= 192 && l <= 255)
					{
						stringbuffer.append((char) ((1040 + l) - 192));
					} else
					{
						stringbuffer.append((char)(l&0xFF));
					}
					break;
				}
			}
			catch (Exception e)
			{
				stringbuffer.append('?');
			}
		}
		
		return stringbuffer.toString();
	}

	/*/////////////////////////////////////////////////////////////////////////
	 //                                                                       //
	 //                 METHODS FOR DATE AND TIME PROCESSING                  //
	 //                                                                       //	
	 /////////////////////////////////////////////////////////////////////////*/

	private final static String error_str = "***error***";

	final public static int TIME_SECOND = 0;

	final public static int TIME_MINUTE = 1;

	final public static int TIME_HOUR = 2;

	final public static int TIME_DAY = 3;

	final public static int TIME_MON = 4;

	final public static int TIME_YEAR = 5;

	final private static byte[] dayCounts = explodeToBytes(
			"31,28,31,30,31,30,31,31,30,31,30,31", ',', 10);

	/* Creates current date (GMT or local) */
	public static long createCurrentDate(boolean gmt)
	{
	    // getTime() returns GTM time
	    long result = new Date().getTime() / 1000;

	    /* convert result to GMT time */
	    long diff = Options.getInt(Options.OPTION_LOCAL_OFFSET);
	    result += (diff * 3600);

	    /* returns GMT or local time */
	    return gmt ? result : gmtTimeToLocalTime(result);
	}

	/* Show date string */
	public static String getDateString(boolean onlyTime, long date)
	{
		if (date == 0)
			return error_str;

		int[] loclaDate = createDate(date);

		StringBuffer sb = new StringBuffer();

		if (!onlyTime)
		{
			sb.append(Util.makeTwo(loclaDate[TIME_DAY])).append('.').append(
					Util.makeTwo(loclaDate[TIME_MON])).append('.').append(
					loclaDate[TIME_YEAR]).append(' ');
		}

		sb.append(Util.makeTwo(loclaDate[TIME_HOUR])).append(':').append(
				Util.makeTwo(loclaDate[TIME_MINUTE]));

		return sb.toString();
	}

	/* Show time string */
	public static String getTimeString(long date)
	{
		if (date == 0)
			return error_str;

		int[] loclaDate = createDate(date);

		StringBuffer sb = new StringBuffer();

		sb.append(Util.makeTwo(loclaDate[TIME_HOUR])).append(':').append(
				Util.makeTwo(loclaDate[TIME_MINUTE])).append(':')
			  .append(Util.makeTwo(loclaDate[TIME_SECOND]));

		return sb.toString();
	}

	/* Generates seconds count from 1st Jan 1970 till mentioned date */
	public static long createLongTime(int year, int mon, int day, int hour,
			int min, int sec)
	{
		int day_count, i, febCount;

		day_count = (year - 1970) * 365 + day;
		day_count += (year - 1968) / 4;
		if (year >= 2000)
			day_count--;

		if ((year % 4 == 0) && (year != 2000))
		{
			day_count--;
			febCount = 29;
		} else
			febCount = 28;

		for (i = 0; i < mon - 1; i++)
			day_count += (i == 1) ? febCount : dayCounts[i];

		return day_count * 24L * 3600L + hour * 3600L + min * 60L + sec;
	}

	// Creates array of calendar values form value of seconds since 1st jan 1970 (GMT)
	public static int[] createDate(long value)
	{
		int total_days, last_days, i;
		int sec, min, hour, day, mon, year;

		sec = (int) (value % 60);

		min = (int) ((value / 60) % 60); // min
		value -= 60 * min;

		hour = (int) ((value / 3600) % 24); // hour
		value -= 3600 * hour;

		total_days = (int) (value / (3600 * 24));

		year = 1970;
		for (;;)
		{
			last_days = total_days
					- ((year % 4 == 0) && (year != 2000) ? 366 : 365);
			if (last_days <= 0)
				break;
			total_days = last_days;
			year++;
		} // year

		int febrDays = ((year % 4 == 0) && (year != 2000)) ? 29 : 28;

		mon = 1;
		for (i = 0; i < 12; i++)
		{
			last_days = total_days - ((i == 1) ? febrDays : dayCounts[i]);
			if (last_days <= 0)
				break;
			mon++;
			total_days = last_days;
		} // mon

		day = total_days; // day

		return new int[]
		{ sec, min, hour, day, mon, year };
	}

	public static String getDateString(boolean onlyTime)
	{
		return getDateString(onlyTime, createCurrentDate(false));
	}

	public static String getTimeString()
	{
		return getTimeString(createCurrentDate(false));
	}

	public static long gmtTimeToLocalTime(long gmtTime)
	{
		long diff = Options.getInt(Options.OPTION_GMT_OFFSET);
		long dl = Options.getInt(Options.OPTION_DAYLIGHT_SAVING);
		return gmtTime + (diff + dl) * 3600L;
	}

	public static String longitudeToString(long seconds)
	{
		StringBuffer buf = new StringBuffer();
		int days = (int) (seconds / 86400);
		seconds %= 86400;
		int hours = (int) (seconds / 3600);
		seconds %= 3600;
		int minutes = (int) (seconds / 60);

		if (days != 0)
			buf.append(days).append(' ').append(
					ResourceBundle.getString("days")).append(' ');
		if (hours != 0)
			buf.append(hours).append(' ').append(
					ResourceBundle.getString("hours")).append(' ');
		if (minutes != 0)
			buf.append(minutes).append(' ').append(
					ResourceBundle.getString("minutes"));

		return buf.toString();
	}

	/*====================================================*/
	/*                                                    */
	/*                     MD5 stuff                      */
	/*                                                    */
	/*====================================================*/

	static final byte[] AIM_MD5_STRING = explodeToBytes(
			"*AOL Instant Messenger (SM)", ',', 16);

	static final int S11 = 7;

	static final int S12 = 12;

	static final int S13 = 17;

	static final int S14 = 22;

	static final int S21 = 5;

	static final int S22 = 9;

	static final int S23 = 14;

	static final int S24 = 20;

	static final int S31 = 4;

	static final int S32 = 11;

	static final int S33 = 16;

	static final int S34 = 23;

	static final int S41 = 6;

	static final int S42 = 10;

	static final int S43 = 15;

	static final int S44 = 21;

	static final byte[] PADDING = explodeToBytes(
			"-128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"
					+ "0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0", ',', 10);

	static private long[] state = new long[4];

	static private long[] count = new long[2];

	static private byte[] buffer = new byte[64];

	static private byte[] digest = new byte[16];

	static public byte[] calculateMD5(byte[] inbuf)
	{
		md5Init();
		md5Update(inbuf, inbuf.length);