org.opennms.core.utils

Class RegexUtils

java.lang.Object

org.opennms.core.utils.RegexUtils

public class RegexUtils
extends Object

Utility functions for regular expression patterns.

Constructor Summary

Constructors

Constructor and Description
RegexUtils()

Method Summary

Modifier and Type	Method and Description
static Set<String>	getNamedCaptureGroupsFromPattern(String pattern) Extracts the names of the named capture groups found within a regex.

Methods inherited from class java.lang.Object

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

Constructor Detail

RegexUtils

public RegexUtils()

Method Detail

getNamedCaptureGroupsFromPattern

public static Set<String> getNamedCaptureGroupsFromPattern(String pattern)

Extracts the names of the named capture groups found within a regex. This function may return false positives, so you must ensure to guard against IllegalArgumentExceptions when calling Matcher.group(String). Derived from https://stackoverflow.com/questions/15588903/get-group-names-in-java-regex The returned Set preserves the order of capture groups as found in the pattern.

Parameters:

pattern - the pattern from which to extract the named capture groups

Returns:

an ordered list of named capture group candidates