public int read(char[] theChars, int offset, int length) throws IOException {
if (log.isDebugEnabled()) {
log.debug("read called: offset = " + offset + ", length = " + length);
}
if (first) {
if (log.isDebugEnabled()) {
log.debug(header);
}
first = false;
for (int i = 0; i < header.length(); i++) {
theChars[i] = header.charAt(i);
}
return header.length();
} else {
if (last) return -1;
int cnt = internal.read(theChars, offset, length);
if (log.isDebugEnabled()) {
log.debug(theChars);
}
if (cnt == -1) {
for (int i = offset; i < footer.length() + offset; i++) {
theChars[i] = footer.charAt(i - offset);
}
cnt = footer.length();
last = true;
}
return cnt;
}
}
int read() throws Exception {
current = reader.read();
if (digest != null) {
digest.update((byte) (current / 256));
digest.update((byte) (current % 256));
}
return current;
}