com.gemstone.gemfire.internal

Class AvailablePortHelper

java.lang.Object

com.gemstone.gemfire.internal.AvailablePortHelper

public class AvailablePortHelper
extends Object

Provides helper methods for acquiring a set of unique available ports. It is not safe to simply call AvailablePort.getRandomAvailablePort several times in a row without doing something to ensure that they are unique. Although they are random, it is possible for subsequent calls to getRandomAvailablePort to return the same integer, unless that port is put into use before further calls to getRandomAvailablePort.

Constructor Summary

Constructors

Constructor and Description
AvailablePortHelper()

Method Summary

Modifier and Type	Method and Description
static int	getRandomAvailablePortForDUnitSite() Returns array of unique randomly available tcp ports of specified count.
static int	getRandomAvailableTCPPort() Returns randomly available tcp port.
static List<com.gemstone.gemfire.internal.AvailablePort.Keeper>	getRandomAvailableTCPPortKeepers(int count)
static int	getRandomAvailableTCPPortOnVM(VM vm) Returns randomly available tcp port for use in VM which might be on a remote host.
static int[]	getRandomAvailableTCPPorts(int count) Returns array of unique randomly available tcp ports of specified count.
static int[]	getRandomAvailableTCPPortsForDUnitSite(int count) Returns array of unique randomly available tcp ports of specified count.
static int	getRandomAvailableUDPPort() Returns randomly available udp port.
static int	getRandomAvailableUDPPortOnVM(VM vm) Returns randomly available udp port for use in VM which might be on a remote host.
static int[]	getRandomAvailableUDPPorts(int count) Returns array of unique randomly available udp ports of specified count.

Methods inherited from class java.lang.Object

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

Constructor Detail

AvailablePortHelper

public AvailablePortHelper()

Method Detail

getRandomAvailableTCPPorts

public static int[] getRandomAvailableTCPPorts(int count)

Returns array of unique randomly available tcp ports of specified count.

getRandomAvailableTCPPortKeepers

public static List<com.gemstone.gemfire.internal.AvailablePort.Keeper> getRandomAvailableTCPPortKeepers(int count)

getRandomAvailableTCPPortsForDUnitSite

public static int[] getRandomAvailableTCPPortsForDUnitSite(int count)

Returns array of unique randomly available tcp ports of specified count.

getRandomAvailablePortForDUnitSite

public static int getRandomAvailablePortForDUnitSite()

Returns array of unique randomly available tcp ports of specified count.

getRandomAvailableTCPPort

public static int getRandomAvailableTCPPort()

Returns randomly available tcp port.

getRandomAvailableTCPPortOnVM

public static int getRandomAvailableTCPPortOnVM(VM vm)

Returns randomly available tcp port for use in VM which might be on a remote host.

getRandomAvailableUDPPorts

public static int[] getRandomAvailableUDPPorts(int count)

Returns array of unique randomly available udp ports of specified count.

getRandomAvailableUDPPort

public static int getRandomAvailableUDPPort()

Returns randomly available udp port.

getRandomAvailableUDPPortOnVM

public static int getRandomAvailableUDPPortOnVM(VM vm)

Returns randomly available udp port for use in VM which might be on a remote host.