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.

作者:

Apache MINA Project

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

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()

返回:

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()

返回:

an available port, selected by the system.

抛出:

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

getNextAvailable

public static int getNextAvailable(int fromPort)

参数:

fromPort - the port to scan for availability

返回:

the next available port starting at a port.

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

返回:

true if the port is available

getAvailablePorts

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

参数:

fromPort - The port we start from

toPort - The posrt we stop at

返回:

the Set of currently avalaible 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.