public void close() throws IOException {
synchronized (closeLock) {
if (closed) {
return;
}
socketOutput.close();
socketInput.close();
socket.close();
closed = true;
}
}
public void writePacket(byte b[]) throws IOException {
if (!isOpen()) {
throw new ClosedConnectionException("connection is closed");
}
/*
* Check the packet size
*/
if (b.length < 11) {
throw new IllegalArgumentException("packet is insufficient size");
}
int b0 = b[0] & 0xff;
int b1 = b[1] & 0xff;
int b2 = b[2] & 0xff;
int b3 = b[3] & 0xff;
int len = ((b0 << 24) | (b1 << 16) | (b2 << 8) | (b3 << 0));
if (len < 11) {
throw new IllegalArgumentException("packet is insufficient size");
}
/*
* Check that the byte array contains the complete packet
*/
if (len > b.length) {
throw new IllegalArgumentException("length mis-match");
}
synchronized (sendLock) {
try {
/*
* Send the packet (ignoring any bytes that follow
* the packet in the byte array).
*/
socketOutput.write(b, 0, len);
} catch (IOException ioe) {
if (!isOpen()) {
throw new ClosedConnectionException("connection is closed");
} else {
throw ioe;
}
}
}
}