com.taobao.arthas.common

Class SocketUtils

java.lang.Object

com.taobao.arthas.common.SocketUtils

public class SocketUtils
extends Object

Author:

hengyunabc 2018-11-07

Field Summary

Fields

Modifier and Type	Field and Description
static int	PORT_RANGE_MAX The default maximum value for port ranges used when finding an available socket port.
static int	PORT_RANGE_MIN The default minimum value for port ranges used when finding an available socket port.

Method Summary

Modifier and Type	Method and Description
static int	findAvailableTcpPort() Find an available TCP port randomly selected from the range [1024, 65535].
static int	findAvailableTcpPort(int minPort) Find an available TCP port randomly selected from the range [minPort, 65535].
static int	findAvailableTcpPort(int minPort, int maxPort) Find an available TCP port randomly selected from the range [minPort, maxPort].
static long	findTcpListenProcess(int port)
static boolean	isTcpPortAvailable(int port)

Methods inherited from class java.lang.Object

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

Field Detail

PORT_RANGE_MIN

public static final int PORT_RANGE_MIN

The default minimum value for port ranges used when finding an available socket port.

See Also:

Constant Field Values

PORT_RANGE_MAX

public static final int PORT_RANGE_MAX

The default maximum value for port ranges used when finding an available socket port.

See Also:

Constant Field Values

Method Detail

findTcpListenProcess

public static long findTcpListenProcess(int port)

isTcpPortAvailable

public static boolean isTcpPortAvailable(int port)

findAvailableTcpPort

public static int findAvailableTcpPort()

Find an available TCP port randomly selected from the range [1024, 65535].

Returns:

an available TCP port number

Throws:

IllegalStateException - if no available port could be found

findAvailableTcpPort

public static int findAvailableTcpPort(int minPort)

Find an available TCP port randomly selected from the range [minPort, 65535].

Parameters:

minPort - the minimum port number

Returns:

an available TCP port number

Throws:

IllegalStateException - if no available port could be found

findAvailableTcpPort

public static int findAvailableTcpPort(int minPort,
                                       int maxPort)

Find an available TCP port randomly selected from the range [minPort, maxPort].

Parameters:

minPort - the minimum port number

maxPort - the maximum port number

Returns:

an available TCP port number

Throws:

IllegalStateException - if no available port could be found