| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/conn/util/InetAddressUtils.java $ |
| * $Revision: 652020 $ |
| * $Date: 2008-04-27 14:23:31 -0700 (Sun, 27 Apr 2008) $ |
| * |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.http.conn.util; |
| |
| import java.util.regex.Pattern; |
| |
| /** |
| * A collection of utilities relating to InetAddresses. |
| */ |
| public class InetAddressUtils { |
| |
| private InetAddressUtils() { |
| } |
| |
| private static final Pattern IPV4_PATTERN = |
| Pattern.compile( |
| "^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$"); |
| |
| private static final Pattern IPV6_STD_PATTERN = |
| Pattern.compile( |
| "^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$"); |
| |
| private static final Pattern IPV6_HEX_COMPRESSED_PATTERN = |
| Pattern.compile( |
| "^((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)$"); |
| |
| public static boolean isIPv4Address(final String input) { |
| return IPV4_PATTERN.matcher(input).matches(); |
| } |
| |
| public static boolean isIPv6StdAddress(final String input) { |
| return IPV6_STD_PATTERN.matcher(input).matches(); |
| } |
| |
| public static boolean isIPv6HexCompressedAddress(final String input) { |
| return IPV6_HEX_COMPRESSED_PATTERN.matcher(input).matches(); |
| } |
| |
| public static boolean isIPv6Address(final String input) { |
| return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input); |
| } |
| |
| } |