org.apache.mina.util

类 AvailablePortFinder

java.lang.Object

org.apache.mina.util.AvailablePortFinder

public class AvailablePortFinder
extends java.lang.Object

Finds currently available server ports.

版本:

$Rev: 555855 $

作者:

The Apache Directory Project (mina-dev@directory.apache.org)

另请参阅:

IANA.org

字段概要

字段

限定符和类型	字段和说明
static int	MAX_PORT_NUMBER The maximum number of server port number.
static int	MIN_PORT_NUMBER The minimum number of server port number.

方法概要

方法

限定符和类型	方法和说明
static boolean	available(int port) Checks to see if a specific port is available.
static java.util.Set<java.lang.Integer>	getAvailablePorts() Returns the Set of currently available port numbers (Integer).
static java.util.Set<java.lang.Integer>	getAvailablePorts(int fromPort, int toPort) Returns the Set of currently avaliable port numbers (Integer) between the specified port range.
static int	getNextAvailable() Gets the next available port starting at the lowest port number.
static int	getNextAvailable(int fromPort) Gets the next available port starting at a port.

从类继承的方法 java.lang.Object

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

字段详细资料

MIN_PORT_NUMBER

public static final int MIN_PORT_NUMBER

The minimum number of server port number.

另请参阅:

常量字段值

MAX_PORT_NUMBER

public static final int MAX_PORT_NUMBER

The maximum number of server port number.

另请参阅:

常量字段值

方法详细资料

getAvailablePorts

public static java.util.Set<java.lang.Integer> getAvailablePorts()

Returns the Set of currently available port numbers (Integer). This method is identical to getAvailablePorts(MIN_PORT_NUMBER, MAX_PORT_NUMBER). WARNING: this can take a very long time.

getNextAvailable

public static int getNextAvailable()

Gets the next available port starting at the lowest port number.

抛出:

java.util.NoSuchElementException - if there are no ports available

getNextAvailable

public static int getNextAvailable(int fromPort)

Gets the next available port starting at a port.

参数:

fromPort - the port to scan for availability

抛出:

java.util.NoSuchElementException - if there are no ports available

available

public static boolean available(int port)

Checks to see if a specific port is available.

参数:

port - the port to check for availability

getAvailablePorts

public static java.util.Set<java.lang.Integer> getAvailablePorts(int fromPort,
                                                 int toPort)

Returns the Set of currently avaliable port numbers (Integer) between the specified port range.

抛出:

java.lang.IllegalArgumentException - if port range is not between MIN_PORT_NUMBER and MAX_PORT_NUMBER or fromPort if greater than toPort.