Java IP Address Validate isIPv4LiteralAddress(String string)

Description

is I Pv Literal Address

License

Apache License

Declaration

public static boolean isIPv4LiteralAddress(String string) 

Method Source Code

//package com.java2s;
/**/*from   w ww  .j  a  va  2s . c  om*/
 *
 * Copyright 2015 Florian Schmaus
 *
 * 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.
 */

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    private static final Pattern IPV4_PATTERN = Pattern
            .compile("^(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})$");

    public static boolean isIPv4LiteralAddress(String string) {
        Matcher matcher = IPV4_PATTERN.matcher(string);
        if (!matcher.matches()) {
            return false;
        }

        for (int i = 0; i < 3; i++) {
            String ipSegment = matcher.group(i);
            int ipSegmentInt;
            try {
                ipSegmentInt = Integer.valueOf(ipSegment);
            } catch (NumberFormatException e) {
                throw new AssertionError(e);
            }
            if (ipSegmentInt > 255) {
                return false;
            }
        }
        return true;
    }
}

Related

1. isIPv4AddressValid(String cidr)
2. isIpv4Correct(String ipAddress)
3. isIPv4Format(String ip)
4. isIPv4Format(String str)
5. isIPv4LiteralAddress(String src)
6. isIpV4PortAddress(String s)
7. isIpV4StrValid(String str)
8. isIPv6(final String ip)
9. isIPv6(String address)