2 * ============LICENSE_START====================================================
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4 * ===========================================================================
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5 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
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6 * ===========================================================================
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7 * Licensed under the Apache License, Version 2.0 (the "License");
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8 * you may not use this file except in compliance with the License.
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9 * You may obtain a copy of the License at
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11 * http://www.apache.org/licenses/LICENSE-2.0
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13 * Unless required by applicable law or agreed to in writing, software
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14 * distributed under the License is distributed on an "AS IS" BASIS,
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15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * See the License for the specific language governing permissions and
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17 * limitations under the License.
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18 * ============LICENSE_END====================================================
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22 package org.onap.aaf.misc.env.util;
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24 import java.util.regex.Pattern;
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26 public class IPValidator {
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27 private static final Pattern ipv4_p = Pattern.compile(
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28 "^((\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])\\.){3}\\2$"
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31 private static final Pattern ipv6_p = Pattern.compile(
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32 "^(([0-9a-fA-F]{0,4})([:|.])){2,7}([0-9a-fA-F]{0,4})$"
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35 private static final Pattern doubleColon = Pattern.compile(
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39 private static final Pattern tooManyColon = Pattern.compile(
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44 public static boolean ipv4(String str) {
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45 return ipv4_p.matcher(str).matches();
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48 public static boolean ipv6(String str) {
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49 return ipv6_p.matcher(str).matches() &&
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50 !doubleColon.matcher(str).matches() &&
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51 !tooManyColon.matcher(str).matches();
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54 public static boolean ip (String str) {
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55 return ipv4_p.matcher(str).matches() || ipv6(str);
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