Package javax.jmdns.impl

Class DNSIncoming

java.lang.Object

javax.jmdns.impl.DNSMessage

javax.jmdns.impl.DNSIncoming

public final class DNSIncoming
extends DNSMessage

Parse an incoming DNS message into its components.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DNSIncoming.MessageInputStream

Field Summary

Fields

Modifier and Type	Field	Description
private final DNSIncoming.MessageInputStream	_messageInputStream
private static final char[]	_nibbleToHex
private final DatagramPacket	_packet
private final long	_receivedTime
private int	_senderUDPPayload
private static org.slf4j.Logger	logger
static boolean	USE_DOMAIN_NAME_FORMAT_FOR_SRV_TARGET

Fields inherited from class javax.jmdns.impl.DNSMessage

_additionals, _answers, _authoritativeAnswers, _multicast, _questions, MULTICAST, UNICAST

Constructor Summary

Constructors

Modifier	Constructor	Description
private	DNSIncoming(int flags, int id, boolean multicast, DatagramPacket packet, long receivedTime)
	DNSIncoming(DatagramPacket packet)	Parse a message from a datagram packet.

Method Summary

Modifier and Type	Method	Description
private String	_hexString(byte[] bytes)	Returns a hex-string for printing
(package private) void	append(DNSIncoming that)	Appends answers to this Incoming.
DNSIncoming	clone()
int	elapseSinceArrival()
int	getSenderUDPPayload()	This will return the default UDP payload except if an OPT record was found with a different size.
private boolean	isIPv4MappedIPv6Address(byte[] addr)
(package private) String	print(boolean dump)	Debugging.
private DNSRecord	readAnswer(InetAddress source)
private DNSQuestion	readQuestion()
String	toString()

Methods inherited from class javax.jmdns.impl.DNSMessage

getAdditionals, getAllAnswers, getAnswers, getAuthorities, getFlags, getId, getNumberOfAdditionals, getNumberOfAnswers, getNumberOfAuthorities, getNumberOfQuestions, getOperationCode, getQuestions, isAuthoritativeAnswer, isEmpty, isMulticast, isQuery, isResponse, isTruncated, isValidResponseCode, print, print, setFlags, setId

Methods inherited from class java.lang.Object

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

Field Details

logger

private static org.slf4j.Logger logger

USE_DOMAIN_NAME_FORMAT_FOR_SRV_TARGET

public static boolean USE_DOMAIN_NAME_FORMAT_FOR_SRV_TARGET

_packet

private final DatagramPacket _packet

_receivedTime

private final long _receivedTime

_messageInputStream

private final DNSIncoming.MessageInputStream _messageInputStream

_senderUDPPayload

private int _senderUDPPayload

_nibbleToHex

private static final char[] _nibbleToHex

Constructor Details

DNSIncoming

public DNSIncoming(DatagramPacket packet)
            throws IOException

Parse a message from a datagram packet.

Parameters:

packet -

Throws:

IOException

DNSIncoming

private DNSIncoming(int flags,
 int id,
 boolean multicast,
 DatagramPacket packet,
 long receivedTime)

Method Details

clone

public DNSIncoming clone()

Overrides:

clone in class Object

readQuestion

private DNSQuestion readQuestion()

readAnswer

private DNSRecord readAnswer(InetAddress source)

isIPv4MappedIPv6Address

private boolean isIPv4MappedIPv6Address(byte[] addr)

print

String print(boolean dump)

Debugging.

toString

public String toString()

Overrides:

toString in class Object

append

void append(DNSIncoming that)

Appends answers to this Incoming.

Throws:

IllegalArgumentException - If not a query or if Truncated.

elapseSinceArrival

public int elapseSinceArrival()

getSenderUDPPayload

public int getSenderUDPPayload()

This will return the default UDP payload except if an OPT record was found with a different size.

Returns:

the senderUDPPayload

_hexString

private String _hexString(byte[] bytes)

Returns a hex-string for printing

Parameters:

bytes -

Returns:

Returns a hex-string which can be used within a SQL expression