org.graylog2.inputs.converters.IPAnonymizerConverter Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog2.inputs.converters;
import org.graylog2.plugin.inputs.Converter;
import java.util.Map;
import java.util.regex.Pattern;
/**
* @author Lennart Koopmann
*/
public class IPAnonymizerConverter extends Converter {
public static final String REPLACEMENT = "$1.$2.$3.xxx";
public static final Pattern p = Pattern.compile("(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})");
public IPAnonymizerConverter(Map config) {
super(Type.IP_ANONYMIZER, config);
}
@Override
public Object convert(String value) {
if (value == null || value.isEmpty()) {
return value;
}
return p.matcher(value).replaceAll(REPLACEMENT);
}
@Override
public boolean buildsMultipleFields() {
return false;
}
}