util.java

类似QQ的功能

		md5Final();
		return digest;
	}

	static private void md5Init()
	{
		count[0] = 0L;
		count[1] = 0L;
		state[0] = 0x67452301L;
		state[1] = 0xefcdab89L;
		state[2] = 0x98badcfeL;
		state[3] = 0x10325476L;
		return;
	}

	static private long F(long x, long y, long z)
	{
		return (x & y) | ((~x) & z);
	}

	static private long G(long x, long y, long z)
	{
		return (x & z) | (y & (~z));
	}

	static private long H(long x, long y, long z)
	{
		return x ^ y ^ z;
	}

	static private long I(long x, long y, long z)
	{
		return y ^ (x | (~z));
	}

	static private long FF(long a, long b, long c, long d, long x, long s,
			long ac)
	{
		a += F(b, c, d) + x + ac;
		a = ((int) a << s) | ((int) a >>> (32 - s));
		a += b;
		return a;
	}

	static private long GG(long a, long b, long c, long d, long x, long s,
			long ac)
	{
		a += G(b, c, d) + x + ac;
		a = ((int) a << s) | ((int) a >>> (32 - s));
		a += b;
		return a;
	}

	static private long HH(long a, long b, long c, long d, long x, long s,
			long ac)
	{
		a += H(b, c, d) + x + ac;
		a = ((int) a << s) | ((int) a >>> (32 - s));
		a += b;
		return a;
	}

	static private long II(long a, long b, long c, long d, long x, long s,
			long ac)
	{
		a += I(b, c, d) + x + ac;
		a = ((int) a << s) | ((int) a >>> (32 - s));
		a += b;
		return a;
	}

	static private void md5Update(byte[] inbuf, int inputLen)
	{
		int i, index, partLen;
		byte[] block = new byte[64];
		index = (int) (count[0] >>> 3) & 0x3F;
		if ((count[0] += (inputLen << 3)) < (inputLen << 3))
			count[1]++;
		count[1] += (inputLen >>> 29);
		partLen = 64 - index;
		if (inputLen >= partLen)
		{
			md5Memcpy(buffer, inbuf, index, 0, partLen);
			md5Transform(buffer);
			for (i = partLen; i + 63 < inputLen; i += 64)
			{
				md5Memcpy(block, inbuf, 0, i, 64);
				md5Transform(block);
			}
			index = 0;
		} else
			i = 0;
		md5Memcpy(buffer, inbuf, index, i, inputLen - i);
	}

	static private void md5Final()
	{
		byte[] bits = new byte[8];
		int index, padLen;
		Encode(bits, count, 8);
		index = (int) (count[0] >>> 3) & 0x3f;
		padLen = (index < 56) ? (56 - index) : (120 - index);
		md5Update(PADDING, padLen);
		md5Update(bits, 8);
		Encode(digest, state, 16);
	}

	static private void md5Memcpy(byte[] output, byte[] input, int outpos,
			int inpos, int len)
	{
		int i;
		for (i = 0; i < len; i++)
			output[outpos + i] = input[inpos + i];
	}

	static private void md5Transform(byte block[])
	{
		long a = state[0], b = state[1], c = state[2], d = state[3];
		long[] x = new long[16];
		Decode(x, block, 64);
		a = FF(a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */
		d = FF(d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */
		c = FF(c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */
		b = FF(b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */
		a = FF(a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */
		d = FF(d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */
		c = FF(c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */
		b = FF(b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */
		a = FF(a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */
		d = FF(d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */
		c = FF(c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */
		b = FF(b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */
		a = FF(a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */
		d = FF(d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */
		c = FF(c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */
		b = FF(b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */
		a = GG(a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */
		d = GG(d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */
		c = GG(c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */
		b = GG(b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */
		a = GG(a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */
		d = GG(d, a, b, c, x[10], S22, 0x2441453L); /* 22 */
		c = GG(c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */
		b = GG(b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */
		a = GG(a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */
		d = GG(d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */
		c = GG(c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */
		b = GG(b, c, d, a, x[8], S24, 0x455a14edL); /* 28 */
		a = GG(a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */
		d = GG(d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */
		c = GG(c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */
		b = GG(b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */
		a = HH(a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */
		d = HH(d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */
		c = HH(c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */
		b = HH(b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */
		a = HH(a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */
		d = HH(d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */
		c = HH(c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */
		b = HH(b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */
		a = HH(a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */
		d = HH(d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */
		c = HH(c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */
		b = HH(b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */
		a = HH(a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */
		d = HH(d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */
		c = HH(c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */
		b = HH(b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */
		a = II(a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */
		d = II(d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */
		c = II(c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */
		b = II(b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */
		a = II(a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */
		d = II(d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */
		c = II(c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */
		b = II(b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */
		a = II(a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */
		d = II(d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */
		c = II(c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */
		b = II(b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */
		a = II(a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */
		d = II(d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */
		c = II(c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */
		b = II(b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */
		state[0] += a;
		state[1] += b;
		state[2] += c;
		state[3] += d;
	}

	static private void Encode(byte[] output, long[] input, int len)
	{
		int i, j;
		for (i = 0, j = 0; j < len; i++, j += 4)
		{
			output[j] = (byte) (input[i] & 0xffL);
			output[j + 1] = (byte) ((input[i] >>> 8) & 0xffL);
			output[j + 2] = (byte) ((input[i] >>> 16) & 0xffL);
			output[j + 3] = (byte) ((input[i] >>> 24) & 0xffL);
		}
	}

	static private void Decode(long[] output, byte[] input, int len)
	{
		int i, j;
		for (i = 0, j = 0; j < len; i++, j += 4)
			output[i] = b2iu(input[j]) | (b2iu(input[j + 1]) << 8)
					| (b2iu(input[j + 2]) << 16) | (b2iu(input[j + 3]) << 24);
		return;
	}

	public static long b2iu(byte b)
	{
		return b < 0 ? b & 0x7F + 128 : b;
	}

	public static String getCurrentDay()
	{
		Calendar cal = Calendar.getInstance();
		Date cur = new Date(1000L*createCurrentDate(false));
		cal.setTime(cur);
		String day = "";

		switch (cal.get(Calendar.DAY_OF_WEEK))
		{
		case Calendar.MONDAY:
			day = "monday";
			break;

		case Calendar.TUESDAY:
			day = "tuesday";
			break;

		case Calendar.WEDNESDAY:
			day = "wednesday";
			break;

		case Calendar.THURSDAY:
			day = "thursday";
			break;

		case Calendar.FRIDAY:
			day = "friday";
			break;

		case Calendar.SATURDAY:
			day = "saturday";
			break;

		case Calendar.SUNDAY:
			day = "sunday";
			break;
		}
		return ResourceBundle.getString(day);
	}

	private static boolean isURLChar(char chr, boolean before)
	{
		if (before)
			return ((chr >= 'A') && (chr <= 'Z'))
					|| ((chr >= 'a') && (chr <= 'z'))
					|| ((chr >= '0') && (chr <= '9')) 
					|| (chr == '-');
		if ((chr <= ' ') || (chr == '\"'))
			return false;
		return ((chr & 0xFF00) == 0);
	}

	public static Vector parseMessageForURL(String msg)
	{
		if (msg.indexOf('.') == -1)
			return null;

		Vector result = new Vector();
		int size = msg.length();
		int findIndex = 0, beginIdx, endIdx;
		int ptIndex;
		for (;;)
		{
			if (findIndex >= size)
				break;
			ptIndex = msg.indexOf('.', findIndex);
			if (ptIndex == -1)
				break;

			for (beginIdx = ptIndex - 1; beginIdx >= 0; beginIdx--)
				if (!isURLChar(msg.charAt(beginIdx), true))
					break;
			for (endIdx = ptIndex + 1; endIdx < size; endIdx++)
				if (!isURLChar(msg.charAt(endIdx), false))
					break;
			if ((beginIdx == -1) || !isURLChar(msg.charAt(beginIdx), true))
				beginIdx++;

			findIndex = endIdx;
			if ((ptIndex == beginIdx) || (endIdx - ptIndex < 2))
				continue;

			result.addElement("http:\57\57" + msg.substring(beginIdx, endIdx));
		}

		return (result.size() == 0) ? null : result;
	}
	
	static public int indexOf(byte[] array, byte[] elem)
	{
		int arrayLen = array.length;
		int elemLen = elem.length;
		if (elemLen > arrayLen) return -1;
		int searchLen = arrayLen-elemLen; 
		int counter;
		for (int i = 0; i < searchLen; i++)
		{
			counter = 0;
			for (int j = 0; j < elemLen; j++, counter++) if (array[i+j] != elem[j]) break;
			if (counter == elemLen) return i;
		}
		return -1;
	}

	static public int strToIntDef(String str, int defValue)
	{
		if (str == null) return defValue;
		int result = defValue;
		try { result = Integer.parseInt(str); } catch (Exception e) {}
		return result;
	}

	static public String replaceStr(String original, String from, String to)
	{
		int index = original.indexOf(from);
		if (index == -1)
			return original;
		return original.substring(0, index) + to
				+ original.substring(index + from.length(), original.length());
	}

	static public byte[] explodeToBytes(String text, char separator, int radix)
	{
		String[] strings = explode(text, separator);
		ByteArrayOutputStream bytes = new ByteArrayOutputStream();
		String item;
		for (int i = 0; i < strings.length; i++)
		{
			item = strings[i];
			if (item.charAt(0) == '*')
				for (int j = 1; j < item.length(); j++)
					bytes.write((byte) item.charAt(j));
			else
				bytes.write(Integer.parseInt(item, radix));

		}
		return bytes.toByteArray();
	}

	/* Divide text to array of parts using separator character */
	static public String[] explode(String text, char separator)
	{
		Vector tmp = new Vector();
		StringBuffer strBuf = new StringBuffer();
		int len = text.length();
		char chr;
		for (int i = 0; i < len; i++)
		{
			chr = text.charAt(i);
			if (chr == separator)
			{
				tmp.addElement(strBuf.toString());
				strBuf.delete(0, strBuf.length());
			} else
				strBuf.append(chr);
		}
		tmp.addElement(strBuf.toString());
		String[] result = new String[tmp.size()];
		tmp.copyInto(result);
		return result;
	}
	
	static public String implode(String[] strings, char separator)
	{
		if ((strings == null) || (strings.length == 0)) return null;
		if (strings.length == 1) return strings[0];
		StringBuffer buffer = new StringBuffer();
		for (int i = 0; i < strings.length; i++)
		{
			if (i != 0) buffer.append(separator);
			buffer.append(strings[i]);
		}
		return buffer.toString();
	}

	static public int strCountOccur(String source, String sub)
	{

		int index = 0;
		int index2 = 0;
		int res = 0;
		if ((source != null) && (sub != null))
		{
			while ((index = source.indexOf(sub, index2)) != -1)
			{
				index2 = index + sub.length();
				res++;
			}
		}
		return res;
	}

	static public void showStackTrace()
	{
		try
		{
			throw new Exception();
		} catch (Exception e)
		{
			e.printStackTrace();
		}
	}
	
	public static void quicksort(String[] a, int lo, int hi)
	{
	    int i=lo, j=hi;
	    String x=a[(lo+hi)/2];

	    do
	    {    
	        while (a[i].compareTo(x) < 0) i++; 
	        while (a[j].compareTo(x) > 0) j--;
	        if (i<=j)
	        {
	            String h=a[i]; 
	            a[i]=a[j]; 
	            a[j]=h;
	            i++; j--;
	        }
	    } while (i<=j);

	    if (lo<j) quicksort(a, lo, j);
	    if (i<hi) quicksort(a, i, hi);
	}
	
//#sijapp cond.if target!="DEFAULT"#	
	
	static public String getMediaType(String source)
	{
		String url = source.toLowerCase();

		/* What is media type? */
		if (url.endsWith(".mp3")) return "audio/mpeg";
		else if (url.endsWith(".amr")) return "audio/amr";
		else if (url.endsWith(".jts")) return "audio/x-tone-seq";
		else if (url.endsWith(".mid") || url.endsWith(".midi")) return "audio/midi";
		else if (url.endsWith(".mmf")) return "audio/x-smaf";
		return "audio/X-wav";
	}
	
	static public Player createPlayer(String source)
	{
		try
		{
			Class cls = new Object().getClass();
			InputStream is = cls.getResourceAsStream(source);
			if (is == null) is = cls.getResourceAsStream("/" + source);
			if (is == null) return null;
			return Manager.createPlayer(is, Util.getMediaType(source));
		}
		catch (Exception e) {}
		return null;
	}
	
	public static boolean testSoundFile(String source)
	{
		Player player = createPlayer(source);
		boolean ok = (player != null);
		if (player != null) player.close();
		return ok;
	}
	
//#sijapp cond.end#
}