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