/**
* Check if the first X characters of a byte stream match a String.
*
* @param data The byte array to process
* @param pattern The String to match
* @return True if the pattern was found, false otherwise
*/
private static boolean bytesEqualsString(byte[] data, String pattern) {
byte[] bytes = new byte[pattern.length()];
Charset csets = Charset.forName("US-ASCII");
boolean fin = false;
int currChar = 0;
// remove any CR and/or LF characters at the beginning of the article
// data
while (!fin) {
if (currChar >= data.length) break;
byte in = data[currChar];
ByteBuffer bb = ByteBuffer.wrap(new byte[] {(byte) in});
CharBuffer cb = csets.decode(bb);
char c = cb.charAt(0);
if (data.length > 0 && (c == '\n' || c == '\r')) currChar++;
else fin = true;
if (data.length == 0) fin = true;
}
// extract bytes (chars) to check from article data
for (int i = 0; i < bytes.length && i < data.length; i++, currChar++) {
byte in = data[currChar];
bytes[i] = (byte) in;
}
// decode byte data to characters
ByteBuffer bb = ByteBuffer.wrap(bytes);
CharBuffer cb = csets.decode(bb);
// compare these characters to the pattern String
for (int i = 0; i < pattern.length(); i++) if (cb.charAt(i) != pattern.charAt(i)) return false;
return true;
}
