'ip address 가 맞는지 확인 정규식 표현을 이용해..'에 해당되는 글 1건

  1. 2010.09.27 ip address 가 맞는지 확인 정규식 표현을 이용해..
01.JAVA/Java2010. 9. 27. 16:18

ip address 가 맞는지 확인 정규식 표현을 이용해..

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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);
    }

}
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