org.ghost4j.util

Class NetworkUtil

java.lang.Object

org.ghost4j.util.NetworkUtil

public class NetworkUtil
extends Object

Network utilities class.

Author:

Gilles Grousset (gi.grousset@gmail.com)

Constructor Summary

Constructors

Constructor and Description
NetworkUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static int	findAvailablePort(String hostname, int startPort, int endPort) Finds an available port within a port range on a host
static void	waitUntilPortListening(String hostname, int port, int timeout) Waits until a port is listening on a given host.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NetworkUtil

public NetworkUtil()

Method Detail

findAvailablePort

public static int findAvailablePort(String hostname,
                    int startPort,
                    int endPort)

Finds an available port within a port range on a host

Parameters:

hostname - Host name

startPort - Port number starting the range

endPort - Port number ending the range

Returns:

An available port number, or 0 if none is available.

waitUntilPortListening

public static void waitUntilPortListening(String hostname,
                          int port,
                          int timeout)
                                   throws IOException

Waits until a port is listening on a given host. An exception is thrown if the timeout is excedeed.

Parameters:

hostname - Host name

port - Port number

timeout - Timeout in seconds

Throws:

IOException - If a connection error occurs or if the timeout is exceeded