Package com.fasterxml.jackson.databind.deser.std

Class InetAddressValidator

java.lang.Object

com.fasterxml.jackson.databind.deser.std.InetAddressValidator

class InetAddressValidator
extends Object

Helper that validates whether a string is a valid IP address literal (IPv4 or IPv6) without performing any DNS lookup.

Logic is adapted from Google Guava's InetAddresses.isInetAddress() under the Apache License 2.0: https://github.com/google/guava/blob/master/guava/src/com/google/common/net/InetAddresses.java

Since:

2.18.9

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	IPV4_PART_COUNT
private static final int	IPV6_PART_COUNT

Constructor Summary

Constructors

Modifier	Constructor	Description
private	InetAddressValidator()

Method Summary

Modifier and Type	Method	Description
private static String	_convertDottedQuadToHex(String ipString)
private static byte[]	_ipStringToBytes(String ipString)
private static short	_parseHextet(String ipString, int start, int end)
private static byte	_parseOctet(String ipString, int start, int end)
private static byte[]	_textToNumericFormatV4(String ipString)
private static byte[]	_textToNumericFormatV6(String ipString)
(package private) static boolean	isInetAddress(String ipString)	Returns true if the supplied string is a valid IP string literal (IPv4 or IPv6), false otherwise.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

IPV4_PART_COUNT

private static final int IPV4_PART_COUNT

See Also:

• Constant Field Values

IPV6_PART_COUNT

private static final int IPV6_PART_COUNT

See Also:

• Constant Field Values

Constructor Details

InetAddressValidator

private InetAddressValidator()

Method Details

isInetAddress

static boolean isInetAddress(String ipString)

Returns true if the supplied string is a valid IP string literal (IPv4 or IPv6), false otherwise. This method never causes a DNS lookup.

_ipStringToBytes

private static byte[] _ipStringToBytes(String ipString)

_textToNumericFormatV4

private static byte[] _textToNumericFormatV4(String ipString)

_textToNumericFormatV6

private static byte[] _textToNumericFormatV6(String ipString)

_convertDottedQuadToHex

private static String _convertDottedQuadToHex(String ipString)

_parseOctet

private static byte _parseOctet(String ipString,
 int start,
 int end)

_parseHextet

private static short _parseHextet(String ipString,
 int start,
 int end)