com.h3c.util

Class ResourceIdUtils

java.lang.Object

com.h3c.util.ResourceIdUtils

public class ResourceIdUtils
extends Object

Set of utilities for composing and parsing resource identifiers.

Method Summary

Methods

Modifier and Type	Method and Description
static String	extract(String rid, String token, String pattern) Extracts the specified segment from a resource identifier using the given pattern.
static String	leaf(String rid) Extracts the leaf portion of the specified resource id, i.e.
static String	parent(String rid) Extracts the parent portion of the specified resource id, i.e.
static String	replace(String value, String token, String rid) Substitutes the specified value into the supplied rid pattern.

Methods inherited from class java.lang.Object

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

Method Detail

replace

public static String replace(String value,
             String token,
             String rid)

Substitutes the specified value into the supplied rid pattern.

Parameters:

value - value to be substituted

token - name of the segment

rid - pattern identifying the resource id path structure

Returns:

rid pattern with the given value incorporated into the named path segment

extract

public static String extract(String rid,
             String token,
             String pattern)

Extracts the specified segment from a resource identifier using the given pattern.

Some examples of usage are as follows:

• extract("/book/I123818172", "isbn", /book/{author}/{isbn}") yields "I123818172"
• extract("/dev/group/switches/alpha", "gid", "/dev/group/{gid}/{uid}") yields "switches"
• ...

Parameters:

rid - resource identifier to be parsed

token - name of the token to be extracted

pattern - pattern identifying segments of interest

Returns:

segment of the resource id, identified by the token and the pattern; null if there is no matching token

leaf

public static String leaf(String rid)

Extracts the leaf portion of the specified resource id, i.e. the last URL segment.

Parameters:

rid - resource id

Returns:

leaf segment of the resource id

parent

public static String parent(String rid)

Extracts the parent portion of the specified resource id, i.e. the resource id without the last URL segment.

Parameters:

rid - resource id

Returns:

parent resource id