SK.gnome.dwarf.utils.dns
Class Message

java.lang.Object
  SK.gnome.dwarf.utils.dns.Message

public class Message

extends java.lang.Object

This class represents a DNS message.

Field Summary

static int	E_FORMAT_ERROR Format error.
static int	E_NAME_ERROR Name error.
static int	E_NO_ERROR No error condition.
static int	E_NOT_IMPLEMENTED Not implemented.
static int	E_NOTAUTH A server status request.
static int	E_NOTZONE A server status request.
static int	E_NXRRSET A server status request.
static int	E_REFUSED Refused.
static int	E_SERVER_FAILURE Server failure.
static int	E_YXDOMAIN A server status request.
static int	E_YXRRSET A server status request.
static int	Q_IQUERY An inverse query.
static int	Q_QUERY A standard query.
static int	Q_STATUS A server status request.

Constructor Summary

Message(Question question, boolean recursion)
Creates a new Message.

Method Summary

boolean	getAA() Whether not this is a response from an authoritative server.
java.util.List	getAdditional() Returns a list of the resource records in the additional records section.
java.util.List	getAnswers() Returns a list of the resource records in the answer section.
java.util.List	getAuthoritative() Returns a list of the server resource records in the authority records section.
int	getId() Returns the message identifier.
java.util.List	getQuestions() Returns a list of the resource records in the question section.
boolean	getRA() Whether the recursive query support is available.
int	getRC() The response code.
boolean	getTC() Whether this message was truncated.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

Q_QUERY

public static final int Q_QUERY

A standard query.

See Also:

Constant Field Values

Q_IQUERY

public static final int Q_IQUERY

An inverse query.

See Also:

Constant Field Values

Q_STATUS

public static final int Q_STATUS

A server status request.

See Also:

Constant Field Values

E_NO_ERROR

public static final int E_NO_ERROR

No error condition.

See Also:

Constant Field Values

E_FORMAT_ERROR

public static final int E_FORMAT_ERROR

Format error.

The name server was unable to interpret the query.

See Also:

Constant Field Values

E_SERVER_FAILURE

public static final int E_SERVER_FAILURE

Server failure.

The name server was unable to process this query due to a problem with the name server.

See Also:

Constant Field Values

E_NAME_ERROR

public static final int E_NAME_ERROR

Name error.

Meaningful only for responses from an authoritative name server, this code signifies that the domain name referenced in the query does not exist.

See Also:

Constant Field Values

E_NOT_IMPLEMENTED

public static final int E_NOT_IMPLEMENTED

Not implemented.

The name server does not support the requested kind of query.

See Also:

Constant Field Values

E_REFUSED

public static final int E_REFUSED

Refused.

The name server refuses to perform the specified operation for policy reasons. For example, a name server may not wish to provide the information to the particular requester, or a name server may not wish to perform a particular operation (e.g., zone transfer) for particular data.

See Also:

Constant Field Values

E_YXDOMAIN

public static final int E_YXDOMAIN

A server status request.

See Also:

Constant Field Values

E_YXRRSET

public static final int E_YXRRSET

A server status request.

See Also:

Constant Field Values

E_NXRRSET

public static final int E_NXRRSET

A server status request.

See Also:

Constant Field Values

E_NOTAUTH

public static final int E_NOTAUTH

A server status request.

See Also:

Constant Field Values

E_NOTZONE

public static final int E_NOTZONE

A server status request.

See Also:

Constant Field Values

Constructor Detail

Message

public Message(Question question,
               boolean recursion)

Creates a new Message.

Parameters:

question - the query resource record

recursion - whether the recursion is permitted

Method Detail

getId

public int getId()

Returns the message identifier.

Returns:

the indentifier

getAA

public boolean getAA()

Whether not this is a response from an authoritative server.

Returns:

the AA bit value

getTC

public boolean getTC()

Whether this message was truncated.

Returns:

the TC bit value

getRA

public boolean getRA()

Whether the recursive query support is available.

Returns:

the RA bit value

getRC

public int getRC()

The response code.

Returns:

the response code.

getQuestions

public java.util.List getQuestions()

Returns a list of the resource records in the question section.

The returned list elements are instances of the Resource class.

Returns:

the questions

getAnswers

public java.util.List getAnswers()

Returns a list of the resource records in the answer section.

The returned list elements are instances of the Resource class.

Returns:

the answers

getAuthoritative

public java.util.List getAuthoritative()

Returns a list of the server resource records in the authority records section.

The returned list elements are instances of the Resource class.

Returns:

the answers

getAdditional

public java.util.List getAdditional()

Returns a list of the resource records in the additional records section.

The returned list elements are instances of the Resource class.

Returns:

the additional resources

toString

public java.lang.String toString()