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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2014 Volker Bergmann ([email protected]).
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.databene.commons.converter;
import java.util.regex.Pattern;
import org.databene.commons.ConversionException;
/**
* Converts strings using a regular expression.
* Each part of the 'input' string that matches the regular expression 'pattern'
* is replaced with the 'replacement' string.
* Created: 22.02.2010 07:12:12
* @since 0.5.0
* @author Volker Bergmann
*/
public class RegexReplacer extends ThreadSafeConverter {
private Pattern pattern;
private String replacement;
public RegexReplacer() {
this(null, null);
}
public RegexReplacer(String pattern, String replacement) {
super(String.class, String.class);
setPattern(pattern);
setReplacement(replacement);
}
private void setReplacement(String replacement) {
this.replacement = replacement;
}
public void setPattern(String pattern) {
this.pattern = Pattern.compile(pattern);
}
@Override
public String convert(String input) throws ConversionException {
return this.pattern.matcher(input).replaceAll(this.replacement);
}
public String convert(String input, String replacement) throws ConversionException {
return this.pattern.matcher(input).replaceAll(replacement);
}
public static String convert(String input, String pattern, String replacement) {
return new RegexReplacer(pattern, replacement).convert(input);
}
}