org.apache.commons.net
Class DaytimeUDPClient
public final class DaytimeUDPClient
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
open
and call
getTime to retrieve the daytime
string, then
call
close
to close the connection properly. Unlike
DaytimeTCPClient ,
successive calls to
getTime are permitted
without re-establishing a connection. That is because UDP is a
connectionless protocol and the Daytime protocol is stateless.
- Daniel F. Savarese
DaytimeTCPClient
String | getTime(InetAddress host) - Same as
getTime(host, DaytimeUDPClient.DEFAULT_PORT); **
|
String | getTime(InetAddress host, int port) -
Retrieves the time string from the specified server and port and
returns it.
|
close , getDefaultTimeout , getLocalAddress , getLocalPort , getSoTimeout , isOpen , open , open , open , setDatagramSocketFactory , setDefaultTimeout , setSoTimeout |
DEFAULT_PORT
public static final int DEFAULT_PORT
The default daytime port. It is set to 13 according to RFC 867. **
- 13
__dummyData
private byte[] __dummyData
__timeData
private byte[] __timeData
getTime
public String getTime(InetAddress host)
throws IOException
Same as getTime(host, DaytimeUDPClient.DEFAULT_PORT);
**
getTime
public String getTime(InetAddress host,
int port)
throws IOException
Retrieves the time string from the specified server and port and
returns it.
host
- The address of the server.port
- The port of the service.
- The time string.