com.antiaction.dns.record
Class DNSRDataMX

java.lang.Object
  |
  +--com.antiaction.dns.record.DNSRDataMX

All Implemented Interfaces:

java.lang.Cloneable, DNSRDataInterface

public class DNSRDataMX

extends java.lang.Object

implements DNSRDataInterface

DNS MX Record container. As defined in rfc1035.

Version:

2.00

Author:

Nicholas Clarke

Field Summary

protected java.lang.String	exchange Exchange.
protected int	prefs Preference.
protected static int	rtype Record of type MX.

Constructor Summary

DNSRDataMX()
Instantiate and initialize a default MX record object.

Method Summary

byte[]	buildPacket(DNSName dnsname, int globalIdx) Build and return the rdata packet on the internal state.
java.lang.Object	clone() Overrides Cloneable.
void	disassemblePacket(DNSName dnsname, byte[] pDat, int pIdx, int pLen) Parses the rdata part of a record.
int	getDisassembledLen() Returns the length of the previously disassembled rdata part.
java.lang.String	getExchange() Get the mx exchange domain name.
int	getPrefs() Get the mx preference value.
int	getRType() Get the record type.
void	setDebug(boolean b) Toggle debug status.
void	setExchange(java.lang.String ex) Set the mx exchange domain name.
void	setPrefs(int p) Set the mx preference value.
java.lang.String	toString() Returns a string representation of the internal state, mostly for debugging purposes.

Methods inherited from class java.lang.Object

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

Field Detail

rtype

protected static int rtype

Record of type MX.

prefs

protected int prefs

Preference.

exchange

protected java.lang.String exchange

Exchange.

Constructor Detail

DNSRDataMX

public DNSRDataMX()

Instantiate and initialize a default MX record object.

Method Detail

clone

public java.lang.Object clone()

Overrides Cloneable.

Specified by:

clone in interface DNSRDataInterface

Overrides:

clone in class java.lang.Object

Returns:

a clone of this instance.

Throws:

OutOfMemoryError - if there is not enough memory.

See Also:

Cloneable

setDebug

public void setDebug(boolean b)

Toggle debug status.

Specified by:

setDebug in interface DNSRDataInterface

Parameters:

b - boolean.

buildPacket

public byte[] buildPacket(DNSName dnsname,
                          int globalIdx)
                   throws DNSNameException

Build and return the rdata packet on the internal state.

Specified by:

buildPacket in interface DNSRDataInterface

Parameters:

dnsname - used for domain name compression in the same message.

globalIdx - current index of the message being assembled. (Domain name compression)

Returns:

the rdata part of the message as a byte array.

Throws:

DNSNameException - if the domain name is invalid.

getDisassembledLen

public int getDisassembledLen()

Returns the length of the previously disassembled rdata part.

Specified by:

getDisassembledLen in interface DNSRDataInterface

See Also:

disassemblePacket(DNSName, byte[], int, int)

disassemblePacket

public void disassemblePacket(DNSName dnsname,
                              byte[] pDat,
                              int pIdx,
                              int pLen)
                       throws DNSNameException,
                              DNSRDataException

Parses the rdata part of a record.

Specified by:

disassemblePacket in interface DNSRDataInterface

Parameters:

dnsname - used for domain name compression in the same message.

pDat - array containing the complete packet.

pIdx - index to where in the array the rdata part begins.

pLen - length of the whole packet.

Throws:

DNSRDataException - if the packet is corrupted.

DNSNameException - if the domain name is invalid.

See Also:

getDisassembledLen()

getRType

public int getRType()

Get the record type.

Specified by:

getRType in interface DNSRDataInterface

Returns:

record type.

setPrefs

public void setPrefs(int p)

Set the mx preference value.

Parameters:

p - mx preference

getPrefs

public int getPrefs()

Get the mx preference value.

Returns:

mx preference.

setExchange

public void setExchange(java.lang.String ex)

Set the mx exchange domain name.

Parameters:

ex - mx exchange.

getExchange

public java.lang.String getExchange()

Get the mx exchange domain name.

Returns:

mx exchange.

toString

public java.lang.String toString()

Returns a string representation of the internal state, mostly for debugging purposes.

Specified by:

toString in interface DNSRDataInterface

Overrides:

toString in class java.lang.Object

Returns:

debug string.