Examples of com.sun.akuma.Daemon

com.sun.akuma.Daemon
orm initialization as a daemon // this involves in closing file descriptors, recording PIDs, etc. d. {@linkplain #init() init}(); } else { // if you are already daemonized, no point in daemonizing yourself again, // so do this only when you aren't daemonizing. if(you decide to launch a copy into background) { d.daemonize(...); System.exit(0); } } // your normal main code follows // this part can be executed in two ways // 1) the user runs your process in the foreground // 2) you decided to daemonize yourself, in which case the newly forked daemon will execute this code, // while the originally executed foreground Java process exits before it gets here. ... }
Alternatively, your main class can extend from Daemon, so that you can customize some of the behaviors. @author Kohsuke Kawaguchi

    private IndexerSupervisor indexerSupervisor;
    private StateWatchingZooKeeper zk;
    private Server server;


    public static void main(String[] args) {
        Daemon d = new Daemon() {
            @Override
            public void init() throws Exception {
                init("/var/run/hbase-indexer.pid");
            }
        };
        try {
        if(d.isDaemonized()) {
            // perform initialization as a daemon
            // this involves in closing file descriptors, recording PIDs, etc.
            d.init();
        } else {
            // if you are already daemonized, no point in daemonizing yourself again,
            // so do this only when you aren't daemonizing.
            if(args != null && args.length > 0 && "daemon".equals(args[0])) {
                d.daemonize();
                System.exit(0);
            }
        }
        } catch (Exception e) {
            log.error("Error setting up hbase-indexer daemon", e);

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   */
  @Override
  public int execute(ApplicationDescriptor application, String[] args)
  {
    int result = ResultCode.OK;
    Daemon daemon = new Daemon();


    if (daemon.isDaemonized())
    {
      try
      {
        daemon.init(UnixCommandUtil.getPidFile(application).getAbsolutePath());
        result = executeApplication(application);
      }
      catch (Exception ex)
      {
        logger.log(Level.SEVERE, null, ex);
        System.err.println("could not create daemon");
        result = ResultCode.DAEMON_START;
      }
    }
    else
    {
      try
      {
        daemon.daemonize();
      }
      catch (IOException ex)
      {
        logger.log(Level.SEVERE, null, ex);
        System.err.println("could not create daemon");

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