Example usage for org.apache.commons.net.ntp NTPUDPClient open

Introduction

In this page you can find the example usage for org.apache.commons.net.ntp NTPUDPClient open.

Prototype

public void open() throws SocketException

Source Link

Document

Opens a DatagramSocket on the local host at the first available port.

Usage

From source file:org.urbancortex.routes.NTPClient.java

public static TimeInfo main(String[] args) {
    System.out.println(args);//from  www .j  av a2s . c  o  m

    if (args.length == 0) {
        System.err.println("Usage: NTPClient <hostname-or-address-list>");
        System.exit(1);
    }

    NTPUDPClient client = new NTPUDPClient();
    // We want to timeout if a response takes longer than 10 seconds
    client.setDefaultTimeout(10000);
    try {
        client.open();
        for (String arg : args) {
            System.out.println();
            try {
                InetAddress hostAddr = InetAddress.getByName(arg);
                System.out.println("> " + hostAddr.getHostName() + "/" + hostAddr.getHostAddress());
                TimeInfo info = client.getTime(hostAddr);
                processResponse(info);

                return info;

            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
    } catch (SocketException e) {
        e.printStackTrace();
    }

    client.close();
    return null;
}

From source file:util.android.util.DateUtils.java

public static Date getNTPTime() {
    NTPUDPClient timeClient = new NTPUDPClient();
    timeClient.setDefaultTimeout(2000);// w  w w .  j  a  v a  2s.c om

    TimeInfo timeInfo;
    try {
        timeClient.open();
        InetAddress inetAddress = InetAddress.getByName(getNTPServer());
        timeInfo = timeClient.getTime(inetAddress);

        long returnTime = timeInfo.getMessage().getTransmitTimeStamp().getTime();
        Date time = new Date(returnTime);
        timeClient.close();
        return time;
    } catch (Exception e) {
        e.printStackTrace();
        return new Date();
    }
}