Class DefaultDnsResponse

java.lang.Object

io.netty.util.AbstractReferenceCounted

io.netty.handler.codec.dns.AbstractDnsMessage

io.netty.handler.codec.dns.DefaultDnsResponse

All Implemented Interfaces:

DnsMessage, DnsResponse, ReferenceCounted

Direct Known Subclasses:

DatagramDnsResponse

public class DefaultDnsResponse
extends AbstractDnsMessage
implements DnsResponse

The default DnsResponse implementation.

Constructor Summary

Constructors

Constructor	Description
DefaultDnsResponse(int id)	Creates a new instance with the DnsOpCode.QUERY opCode and the DnsResponseCode.NOERROR RCODE.
DefaultDnsResponse(int id, DnsOpCode opCode)	Creates a new instance with the DnsResponseCode.NOERROR RCODE.
DefaultDnsResponse(int id, DnsOpCode opCode, DnsResponseCode code)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
DnsResponse	addRecord(DnsSection section, int index, DnsRecord record)	Adds the specified record at the specified index of the specified section of this DNS message.
DnsResponse	addRecord(DnsSection section, DnsRecord record)	Adds the specified record at the end of the specified section of this DNS message.
DnsResponse	clear()	Removes all the records in this DNS message.
DnsResponse	clear(DnsSection section)	Removes all the records in the specified section of this DNS message.
DnsResponseCode	code()	Returns the 4 bit return code.
boolean	isAuthoritativeAnswer()	Returns true if responding server is authoritative for the domain name in the query message.
boolean	isRecursionAvailable()	Returns true if DNS server can handle recursive queries.
boolean	isTruncated()	Returns true if response has been truncated, usually if it is over 512 bytes.
DnsResponse	retain()	Increases the reference count by 1.
DnsResponse	retain(int increment)	Increases the reference count by the specified increment.
DnsResponse	setAuthoritativeAnswer(boolean authoritativeAnswer)	Set to true if responding server is authoritative for the domain name in the query message.
DnsResponse	setCode(DnsResponseCode code)	Sets the response code for this message.
DnsResponse	setId(int id)	Sets the ID of this DNS message.
DnsResponse	setOpCode(DnsOpCode opCode)	Sets the opCode of this DNS message.
DnsResponse	setRecord(DnsSection section, DnsRecord record)	Sets the specified section of this DNS message to the specified record, making it a single-record section.
DnsResponse	setRecursionAvailable(boolean recursionAvailable)	Set to true if DNS server can handle recursive queries.
DnsResponse	setRecursionDesired(boolean recursionDesired)	Sets the RD (recursion desired} field of this DNS message.
DnsResponse	setTruncated(boolean truncated)	Set to true if response has been truncated (usually happens for responses over 512 bytes).
DnsResponse	setZ(int z)	Sets the Z (reserved for future use) field of this DNS message.
String	toString()
DnsResponse	touch()	Records the current access location of this object for debugging purposes.
DnsResponse	touch(Object hint)	Records the current access location of this object with an additional arbitrary information for debugging purposes.

Methods inherited from class AbstractDnsMessage

count, count, deallocate, equals, hashCode, id, isRecursionDesired, opCode, recordAt, recordAt, removeRecord, setRecord, z

Modifier and Type	Method	Description
int	count()	Returns the number of records in this DNS message.
int	count(DnsSection section)	Returns the number of records in the specified section of this DNS message.
protected void	deallocate()	Called once AbstractReferenceCounted.refCnt() is equals 0.
boolean	equals(Object obj)
int	hashCode()
int	id()	Returns the ID of this DNS message.
boolean	isRecursionDesired()	Returns the RD (recursion desired} field of this DNS message.
DnsOpCode	opCode()	Returns the opCode of this DNS message.
<T extends DnsRecord> T	recordAt(DnsSection section)	Returns the first record in the specified section of this DNS message.
<T extends DnsRecord> T	recordAt(DnsSection section, int index)	Returns the record at the specified index of the specified section of this DNS message.
<T extends DnsRecord> T	removeRecord(DnsSection section, int index)	Removes the record at the specified index of the specified section from this DNS message.
<T extends DnsRecord> T	setRecord(DnsSection section, int index, DnsRecord record)	Sets the specified record at the specified index of the specified section of this DNS message.
int	z()	Returns the Z (reserved for future use) field of this DNS message.

Methods inherited from class AbstractReferenceCounted

refCnt, release, release, setRefCnt

Modifier and Type	Method	Description
int	refCnt()	Returns the reference count of this object.
boolean	release()	Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0.
boolean	release(int decrement)	Decreases the reference count by the specified decrement and deallocates this object if the reference count reaches at 0.
protected void	setRefCnt(int refCnt)	An unsafe operation intended for use by a subclass that sets the reference count of the object directly

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

DefaultDnsResponse

public DefaultDnsResponse(int id)

Creates a new instance with the DnsOpCode.QUERY opCode and the DnsResponseCode.NOERROR RCODE.

Parameters:

id - the ID of the DNS response

DefaultDnsResponse

public DefaultDnsResponse(int id,
 DnsOpCode opCode)

Creates a new instance with the DnsResponseCode.NOERROR RCODE.

Parameters:

id - the ID of the DNS response

opCode - the opCode of the DNS response

DefaultDnsResponse

public DefaultDnsResponse(int id,
 DnsOpCode opCode,
 DnsResponseCode code)

Creates a new instance.

Parameters:

id - the ID of the DNS response

opCode - the opCode of the DNS response

code - the RCODE of the DNS response

Method Details

isAuthoritativeAnswer

public boolean isAuthoritativeAnswer()

Description copied from interface: DnsResponse

Returns true if responding server is authoritative for the domain name in the query message.

Specified by:

isAuthoritativeAnswer in interface DnsResponse

setAuthoritativeAnswer

public DnsResponse setAuthoritativeAnswer(boolean authoritativeAnswer)

Description copied from interface: DnsResponse

Set to true if responding server is authoritative for the domain name in the query message.

Specified by:

setAuthoritativeAnswer in interface DnsResponse

Parameters:

authoritativeAnswer - flag for authoritative answer

isTruncated

public boolean isTruncated()

Description copied from interface: DnsResponse

Returns true if response has been truncated, usually if it is over 512 bytes.

Specified by:

isTruncated in interface DnsResponse

setTruncated

public DnsResponse setTruncated(boolean truncated)

Description copied from interface: DnsResponse

Set to true if response has been truncated (usually happens for responses over 512 bytes).

Specified by:

setTruncated in interface DnsResponse

Parameters:

truncated - flag for truncation

isRecursionAvailable

public boolean isRecursionAvailable()

Description copied from interface: DnsResponse

Returns true if DNS server can handle recursive queries.

Specified by:

isRecursionAvailable in interface DnsResponse

setRecursionAvailable

public DnsResponse setRecursionAvailable(boolean recursionAvailable)

Description copied from interface: DnsResponse

Set to true if DNS server can handle recursive queries.

Specified by:

setRecursionAvailable in interface DnsResponse

Parameters:

recursionAvailable - flag for recursion availability

code

public DnsResponseCode code()

Description copied from interface: DnsResponse

Returns the 4 bit return code.

Specified by:

code in interface DnsResponse

setCode

public DnsResponse setCode(DnsResponseCode code)

Description copied from interface: DnsResponse

Sets the response code for this message.

Specified by:

setCode in interface DnsResponse

Parameters:

code - the response code

setId

public DnsResponse setId(int id)

Description copied from interface: DnsMessage

Sets the ID of this DNS message.

Specified by:

setId in interface DnsMessage

Specified by:

setId in interface DnsResponse

Overrides:

setId in class AbstractDnsMessage

setOpCode

public DnsResponse setOpCode(DnsOpCode opCode)

Description copied from interface: DnsMessage

Sets the opCode of this DNS message.

Specified by:

setOpCode in interface DnsMessage

Specified by:

setOpCode in interface DnsResponse

Overrides:

setOpCode in class AbstractDnsMessage

setRecursionDesired

public DnsResponse setRecursionDesired(boolean recursionDesired)

Description copied from interface: DnsMessage

Sets the RD (recursion desired} field of this DNS message.

Specified by:

setRecursionDesired in interface DnsMessage

Specified by:

setRecursionDesired in interface DnsResponse

Overrides:

setRecursionDesired in class AbstractDnsMessage

setZ

public DnsResponse setZ(int z)

Description copied from interface: DnsMessage

Sets the Z (reserved for future use) field of this DNS message.

Specified by:

setZ in interface DnsMessage

Specified by:

setZ in interface DnsResponse

Overrides:

setZ in class AbstractDnsMessage

setRecord

public DnsResponse setRecord(DnsSection section,
 DnsRecord record)

Description copied from interface: DnsMessage

Sets the specified section of this DNS message to the specified record, making it a single-record section. When the specified section is DnsSection.QUESTION, the specified record must be a DnsQuestion.

Specified by:

setRecord in interface DnsMessage

Specified by:

setRecord in interface DnsResponse

Overrides:

setRecord in class AbstractDnsMessage

addRecord

public DnsResponse addRecord(DnsSection section,
 DnsRecord record)

Description copied from interface: DnsMessage

Adds the specified record at the end of the specified section of this DNS message. When the specified section is DnsSection.QUESTION, the specified record must be a DnsQuestion.

Specified by:

addRecord in interface DnsMessage

Specified by:

addRecord in interface DnsResponse

Overrides:

addRecord in class AbstractDnsMessage

addRecord

public DnsResponse addRecord(DnsSection section,
 int index,
 DnsRecord record)

Description copied from interface: DnsMessage

Adds the specified record at the specified index of the specified section of this DNS message. When the specified section is DnsSection.QUESTION, the specified record must be a DnsQuestion.

Specified by:

addRecord in interface DnsMessage

Specified by:

addRecord in interface DnsResponse

Overrides:

addRecord in class AbstractDnsMessage

clear

public DnsResponse clear(DnsSection section)

Description copied from interface: DnsMessage

Removes all the records in the specified section of this DNS message.

Specified by:

clear in interface DnsMessage

Specified by:

clear in interface DnsResponse

Overrides:

clear in class AbstractDnsMessage

clear

public DnsResponse clear()

Description copied from interface: DnsMessage

Removes all the records in this DNS message.

Specified by:

clear in interface DnsMessage

Specified by:

clear in interface DnsResponse

Overrides:

clear in class AbstractDnsMessage

touch

public DnsResponse touch()

Description copied from interface: ReferenceCounted

Records the current access location of this object for debugging purposes. If this object is determined to be leaked, the information recorded by this operation will be provided to you via ResourceLeakDetector. This method is a shortcut to touch(null).

Specified by:

touch in interface DnsMessage

Specified by:

touch in interface DnsResponse

Specified by:

touch in interface ReferenceCounted

Overrides:

touch in class AbstractDnsMessage

touch

public DnsResponse touch(Object hint)

Description copied from interface: ReferenceCounted

Records the current access location of this object with an additional arbitrary information for debugging purposes. If this object is determined to be leaked, the information recorded by this operation will be provided to you via ResourceLeakDetector.

Specified by:

touch in interface DnsMessage

Specified by:

touch in interface DnsResponse

Specified by:

touch in interface ReferenceCounted

Overrides:

touch in class AbstractDnsMessage

retain

public DnsResponse retain()

Description copied from interface: ReferenceCounted

Increases the reference count by 1.

Specified by:

retain in interface DnsMessage

Specified by:

retain in interface DnsResponse

Specified by:

retain in interface ReferenceCounted

Overrides:

retain in class AbstractDnsMessage

retain

public DnsResponse retain(int increment)

Description copied from interface: ReferenceCounted

Increases the reference count by the specified increment.

Specified by:

retain in interface DnsMessage

Specified by:

retain in interface DnsResponse

Specified by:

retain in interface ReferenceCounted

Overrides:

retain in class AbstractDnsMessage

toString

public String toString()

Overrides:

toString in class Object