org.opendaylight.yangtools.yang.binding

Class RegexPatterns

java.lang.Object

org.opendaylight.yangtools.yang.binding.RegexPatterns

@Beta
public final class RegexPatterns
extends Object

Method Summary

Modifier and Type	Method and Description
static boolean	isNegatedPattern(Pattern pattern) Check if the specified Pattern is the result of negatePatternString(String).
static String	negatePatternString(String pattern) Create a Pattern expression which performs inverted match to the specified pattern.

Methods inherited from class java.lang.Object

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

Method Detail

isNegatedPattern

public static boolean isNegatedPattern(Pattern pattern)

Check if the specified Pattern is the result of negatePatternString(String). This method assumes the pattern was not hand-coded but rather was automatically-generated, such that its non-automated parts come from XSD regular expressions. If this constraint is violated, this method may result false positives.

Parameters:

pattern - Pattern to check

Returns:

True if this pattern is a negation.

Throws:

NullPointerException - if pattern is null

IllegalArgumentException - if the pattern does not conform to expected structure

negatePatternString

public static String negatePatternString(String pattern)

Create a Pattern expression which performs inverted match to the specified pattern. The input pattern is expected to be a valid regular expression passing Pattern.compile(String) and to have both start and end of string anchors as the first and last characters.

Parameters:

pattern - Pattern regular expression to negate

Returns:

Negated regular expression

Throws:

IllegalArgumentException - if the pattern does not conform to expected structure

NullPointerException - if pattern is null