PatternList.java
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* Copyright (C) 2023 wcm.io
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* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package io.wcm.siteapi.genericedit.builder.impl.util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* List of regex patterns to match against.
*/
public class PatternList {
private static final Logger log = LoggerFactory.getLogger(PatternList.class);
private final List<Pattern> patterns;
/**
* @param patterns Compiled patterns
*/
public PatternList(Pattern @NotNull... patterns) {
this.patterns = Arrays.asList(patterns);
}
/**
* @param patternStrings Pattern strings. Invalid patterns are ignored (with warning).
*/
public PatternList(String @NotNull... patternStrings) {
this.patterns = compilePatterns(patternStrings);
}
/**
* @param value Value to match against patterns
* @return true if at least one pattern matches
*/
public boolean matches(@NotNull String value) {
return patterns.stream().anyMatch(pattern -> pattern.matcher(value).matches());
}
/**
* Compiles all regular expressions.
* @param patternStrings Pattern strings
* @return Compiled regular expressions
*/
private static @NotNull List<Pattern> compilePatterns(@NotNull String[] patternStrings) {
List<Pattern> patterns = new ArrayList<>();
for (String patternString : patternStrings) {
try {
patterns.add(Pattern.compile(patternString));
}
catch (PatternSyntaxException ex) {
log.warn("Ignoring invalid regular expression '{}': {}", patternString, ex.getMessage());
}
}
return patterns;
}
}