Package javax.security.jacc

Class URLPatternSpec

java.lang.Object

javax.security.jacc.URLPatternSpec

class URLPatternSpec
extends Object

Encapsulation of the URLPatternSpec defined in the WebResourcePermission and WebUserDataPermission classes.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) URLPattern	urlPattern	The first or only URLPattern in the specification
(package private) HashSet<URLPattern>	urlPatternList

Constructor Summary

Constructors

Constructor	Description
URLPatternSpec(String spec)	The specification contains a URLPatternSpec that identifies the web resources to which the permissions applies.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	hashCode()
(package private) boolean	implies(URLPatternSpec spec)	Perform the permission URLPattern matching: the first URLPattern in the name of the argument permission is matched by the first URLPattern in the name of this permission. the first URLPattern in the name of the argument permission is NOT matched by any URLPattern in the URLPatternList of the URLPatternSpec of this permission. if the first URLPattern in the name of the argument permission matches the first URLPattern in the URLPatternSpec of this permission, then every URLPattern in the URLPatternList of the URLPatternSpec of this permission is matched by a URLPattern in the URLPatternList of the argument permission.

Methods inherited from class java.lang.Object

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

Field Details

urlPattern

URLPattern urlPattern

The first or only URLPattern in the specification

urlPatternList

HashSet<URLPattern> urlPatternList

Constructor Details

URLPatternSpec

URLPatternSpec(String spec)

The specification contains a URLPatternSpec that identifies the web resources to which the permissions applies. The syntax of a URLPatternSpec is as follows:

 URLPatternList ::= URLPattern | URLPatternList colon URLPattern 
 URLPatternSpec ::= null | URLPattern | URLPattern colon URLPatternList
 

A null URLPatternSpec is translated to the default URLPattern, "/", by the permission constructor. The empty string is an exact URLPattern, and may occur anywhere in a URLPatternSpec that an exact URLPattern may occur. The first URLPattern in a URLPatternSpec may be any of the pattern types, exact, path-prefix, extension, or default as defined in the Java Servlet Specification). When a URLPatternSpec includes a URLPatternList, the patterns of the URLPatternList identify the resources to which the permission does NOT apply and depend on the pattern type and value of the first pattern as follows:

• No pattern may exist in the URLPatternList that matches the first pattern.
• If the first pattern is a path-prefix pattern, only exact patterns matched by the first pattern and path-prefix patterns matched by, but different from, the first pattern may occur in the URLPatternList.
• If the first pattern is an extension pattern, only exact patterns that are matched by the first pattern and path-prefix patterns may occur in the URLPatternList.
• If the first pattern is the default pattern, "/", any pattern except the default pattern may occur in the URLPatternList.
• If the first pattern is an exact pattern a URLPatternList must not be present in the URLPatternSpec.

Parameters:

spec - the String representation of the URLPatternSpec as defined by the JACC specification.

Method Details

implies

boolean implies(URLPatternSpec spec)

Perform the permission URLPattern matching:

• the first URLPattern in the name of the argument permission is matched by the first URLPattern in the name of this permission.
• the first URLPattern in the name of the argument permission is NOT matched by any URLPattern in the URLPatternList of the URLPatternSpec of this permission.
• if the first URLPattern in the name of the argument permission matches the first URLPattern in the URLPatternSpec of this permission, then every URLPattern in the URLPatternList of the URLPatternSpec of this permission is matched by a URLPattern in the URLPatternList of the argument permission.

URLPattern matching is performed using the Servlet matching rules where two URL patterns match if they are related as follows:

• their pattern values are String equivalent, or
• this pattern is the path-prefix pattern "/*", or
• this pattern is a path-prefix pattern (that is, it starts with "/" and ends with "/*") and the argument pattern starts with the substring of this pattern, minus its last 2 characters, and the next character of the argument pattern, if there is one, is "/", or
• this pattern is an extension pattern (that is, it starts with "*.") and the argument pattern ends with this pattern, or
• the reference pattern is the special default pattern, "/", which matches all argument patterns.

All of the comparisons described above are case sensitive.

Parameters:

spec - the URLPatternSpec to which this URLPatternSpec is to be compared.

Returns:

true if this implies spec; false otherwise.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object