org.apache.commons.net
Class DaytimeUDPClient
public final
class
DaytimeUDPClient
extends DatagramSocketClient
The DaytimeUDPClient class is a UDP implementation of a client for the
Daytime protocol described in RFC 867. To use the class, merely
open a local datagram socket with
{@link org.apache.commons.net.DatagramSocketClient#open open }
and call {@link #getTime getTime } to retrieve the daytime
string, then
call {@link org.apache.commons.net.DatagramSocketClient#close close }
to close the connection properly. Unlike
{@link org.apache.commons.net.DaytimeTCPClient},
successive calls to {@link #getTime getTime } are permitted
without re-establishing a connection. That is because UDP is a
connectionless protocol and the Daytime protocol is stateless.
Author: Daniel F. Savarese
See Also:
Method Summary |
String | getTime(InetAddress host, int port)
Retrieves the time string from the specified server and port and
returns it.
|
String | getTime(InetAddress host) Same as getTime(host, DaytimeUDPClient.DEFAULT_PORT); ** |
public static final int DEFAULT_PORT
The default daytime port. It is set to 13 according to RFC 867. **
public String getTime(InetAddress host, int port)
Retrieves the time string from the specified server and port and
returns it.
Parameters: host The address of the server. port The port of the service.
Returns: The time string.
Throws: IOException If an error occurs while retrieving the time.
public String getTime(InetAddress host)
Same as getTime(host, DaytimeUDPClient.DEFAULT_PORT);
**