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(int port, InetAddress laddr) throws SocketException 

Source Link

Document

Opens a DatagramSocket at the specified address on the local host at a specified port.

Usage

From source file:org.sipfoundry.preflight.NTP.java

public ResultCode validate(int timeout, NetworkResources networkResources, JournalService journalService,
        InetAddress bindAddress) {
    ResultCode results = NONE;/*from w  ww  .  java 2 s . c  om*/

    if (networkResources.ntpServers == null) {
        journalService.println("No NTP servers provided, skipping test.");
        results = NTP_SERVERS_MISSING;
    } else {
        journalService.println("Starting NTP servers test.");
        NTPUDPClient client = new NTPUDPClient();
        client.setDefaultTimeout(timeout * 1000);
        try {
            client.open(bindPort, bindAddress);

            for (InetAddress ntpServer : networkResources.ntpServers) {
                journalService.println("NTP test for server: " + ntpServer.getCanonicalHostName());
                try {
                    TimeInfo info = client.getTime(ntpServer);
                    journalService.println(new String(processResponse(info)));
                } catch (IOException e) {
                    client.close();
                    if (e.getClass() == java.net.SocketTimeoutException.class) {
                        journalService.println("  NTP request timed out.");
                        results = NTP_SERVER_FAILURE;
                    } else {
                        journalService.println("  NTP request error: " + e.getMessage());
                        results = NTP_TEST_FAILURE;
                    }
                }
            }
        } catch (SocketException e) {
            journalService.println("Unable to create NTP client: " + e.getMessage());
            results = NTP_TEST_FAILURE;
        }
    }

    journalService.println("");
    return results;
}

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