net.sf.hermesftp.utils
Class NetUtils

java.lang.Object
  net.sf.hermesftp.utils.NetUtils

public final class NetUtils
extends java.lang.Object

Utility methods that facilitate networking.

Author:

Lars Behnke

Method Summary

static boolean	checkIPMatch(java.lang.String ipTemplateList, java.net.InetAddress addr) Checks if the passed IP address complies to a given pattern.
static boolean	checkIPv4Match(java.lang.String ipTemplateList, java.lang.String ipStr) Checks if the passed IPv4 complies to a given pattern.
static boolean	checkIPv6Match(java.lang.String ipTemplateList, java.lang.String ipStr) Checks if the passed IPv6 complies to a given pattern.
static java.net.InetAddress	getMachineAddress(boolean fallBackToLocalhost) Returns the machine's network address.
static java.net.InetAddress	getMachineAddress(java.net.NetworkInterface ni) Returns the network address of a particular network interface.
static boolean	isIPv6(java.net.InetAddress addr) Checks the IP protocol version (IPv4 or IPv6)
static boolean	isSSLAvailable() Checks if SSL is available.

Methods inherited from class java.lang.Object

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

Method Detail

getMachineAddress

public static java.net.InetAddress getMachineAddress(boolean fallBackToLocalhost)

Returns the machine's network address.

Parameters:

fallBackToLocalhost - True if loopback address should be used if there is no net.

Returns:

The ip address.

isIPv6

public static boolean isIPv6(java.net.InetAddress addr)

Checks the IP protocol version (IPv4 or IPv6)

Parameters:

addr - The address to check.

Returns:

True, if IPv6.

getMachineAddress

public static java.net.InetAddress getMachineAddress(java.net.NetworkInterface ni)

Returns the network address of a particular network interface.

Parameters:

ni - The network interface.

Returns:

The machine address of a particular network interface.

isSSLAvailable

public static boolean isSSLAvailable()

Checks if SSL is available.

Returns:

True, if SSL is available.

checkIPMatch

public static boolean checkIPMatch(java.lang.String ipTemplateList,
                                   java.net.InetAddress addr)

Checks if the passed IP address complies to a given pattern.

Parameters:

ipTemplateList - String list of patterns. Wild cards are allowed: 192.168.*.*, 127.0.0.1, !85.0.0.0

ip - The IP address to check.

Returns:

True, if the passed IP address matches at least one of the patterns.

checkIPv4Match

public static boolean checkIPv4Match(java.lang.String ipTemplateList,
                                     java.lang.String ipStr)

Checks if the passed IPv4 complies to a given pattern.

Parameters:

ipTemplateList - String list of patterns. Wild cards are allowed: 192.168.*.*, 127.0.0.1, !85.0.0.0

ipStr - The IP address to check.

Returns:

True, if the passed IP address matches at least one of the patterns.

checkIPv6Match

public static boolean checkIPv6Match(java.lang.String ipTemplateList,
                                     java.lang.String ipStr)

Checks if the passed IPv6 complies to a given pattern.

Parameters:

ipTemplateList - String list of patterns. Wild cards are allowed.

ipStr - The IP address to check.

Returns:

True, if the passed IP address matches at least one of the patterns.