private void writeCommand(NotifyCommand notify) throws IOException, CharacterCodingException {
OutputStream bytesOut = connection.getOutputStream();
CharsetEncoder encoder = UTF_8.newEncoder();
Writer textOut = new OutputStreamWriter(bytesOut, encoder);
textOut.append("NOTIFY\n");
textOut.append(format("barrier:%s\n", notify.getBarrier()));
textOut.append("\n");
textOut.flush();
}
public void notifyBarrier(String barrierName) throws Exception {
final NotifyCommand notifyCommand = new NotifyCommand();
notifyCommand.setBarrier(barrierName);
this.writeCommand(notifyCommand);
}