Module seppiko.commons.utils

Package org.seppiko.commons.utils.http

Class URIUtil

java.lang.Object

org.seppiko.commons.utils.http.URIUtil

public class URIUtil
extends Object

URI utility

 [scheme ":"] ["//" authority] "/" path ["?" query] ["#" fragment]
 authority = [userinfo "@"] host [":" port]
 userinfo = username [":" password]
 

But the URI definition requires that the scheme must be used.

Author:

Leonard Woo

Method Summary

Modifier and Type	Method	Description
static String	getFileExtension(String filename)	get file extension
static String	getLastPathname(String uri)	Get last path name (e.g.
protected static URI	getUri(String uri)	get URI object
static boolean	isIPv4(String ip)	Test ip string is IPv4
static boolean	isIPv6(String ip)	Test ip string is IPv6

Methods inherited from class java.lang.Object

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

Method Details

getUri

protected static URI getUri(String uri)
                     throws NullPointerException,
IllegalArgumentException

get URI object

Parameters:

uri - URI address (like url)

Returns:

URI object

Throws:

NullPointerException - If uri string is null

IllegalArgumentException - If the given string violates RFC 2396

isIPv4

public static boolean isIPv4(String ip)

Test ip string is IPv4

Parameters:

ip - ip string

Returns:

true if ip is IPv4 string, false otherwise

isIPv6

public static boolean isIPv6(String ip)

Test ip string is IPv6

Parameters:

ip - ip string

Returns:

true if ip is IPv6 string, false otherwise

getLastPathname

public static String getLastPathname(String uri)
                              throws IllegalArgumentException,
NullPointerException

Get last path name (e.g. filename)

Parameters:

uri - URI

Returns:

last path content e.g. filename

Throws:

IllegalArgumentException - uri is not legal URI

NullPointerException - uri is null

getFileExtension

public static String getFileExtension(String filename)
                               throws NullPointerException

get file extension

Parameters:

filename - file name (e.g. last pathname)

Returns:

file extension, if not found return null

Throws:

NullPointerException - filename is null