HexTranslatorpublic class HexTranslator extends Object implements Translator| Converters for going from hex to binary and back. Note: this class assumes ASCII processing. |
| Fields Summary |
|---|
| private static final byte[] | hexTable |
| Methods Summary |
|---|
| public int | decode(byte[] in, int inOff, int length, byte[] out, int outOff)
int halfLength = length / 2;
byte left, right;
for (int i = 0; i < halfLength; i++)
{
left = in[inOff + i * 2];
right = in[inOff + i * 2 + 1];
if (left < (byte)'a")
{
out[outOff] = (byte)((left - '0") << 4);
}
else
{
out[outOff] = (byte)((left - 'a" + 10) << 4);
}
if (right < (byte)'a")
{
out[outOff] += (byte)(right - '0");
}
else
{
out[outOff] += (byte)(right - 'a" + 10);
}
outOff++;
}
return halfLength;
| | public int | encode(byte[] in, int inOff, int length, byte[] out, int outOff)
for (int i = 0, j = 0; i < length; i++, j += 2)
{
out[outOff + j] = hexTable[(in[inOff] >> 4) & 0x0f];
out[outOff + j + 1] = hexTable[in[inOff] & 0x0f];
inOff++;
}
return length * 2;
| | public int | getDecodedBlockSize()size of the output block on decoding produced by getEncodedBlockSize()
bytes.
return 1;
| | public int | getEncodedBlockSize()size of the output block on encoding produced by getDecodedBlockSize()
bytes.
return 2;
|
|
