javax.jmdns.impl
Class JmDNSImpl

java.lang.Object
  javax.jmdns.JmDNS
      javax.jmdns.impl.JmDNSImpl

All Implemented Interfaces:

Closeable, DNSStatefulObject, DNSTaskStarter

public class JmDNSImpl
extends JmDNS
implements DNSStatefulObject, DNSTaskStarter

mDNS implementation in Java.

Author:

Arthur van Hoff, Rick Blair, Jeff Sonstein, Werner Randelshofer, Pierre Frisch, Scott Lewis

Nested Class Summary

static class	JmDNSImpl.Operation
static class	JmDNSImpl.ServiceTypeEntry This is used to store type entries.
protected class	JmDNSImpl.Shutdown Shutdown operations.

Nested classes/interfaces inherited from class javax.jmdns.JmDNS

JmDNS.Delegate

Nested classes/interfaces inherited from interface javax.jmdns.impl.DNSStatefulObject

DNSStatefulObject.DefaultImplementation, DNSStatefulObject.DNSStatefulObjectSemaphore

Nested classes/interfaces inherited from interface javax.jmdns.impl.DNSTaskStarter

DNSTaskStarter.DNSTaskStarterImpl, DNSTaskStarter.Factory

Field Summary

protected Thread

_shutdown This is the shutdown hook, we registered with the java runtime.

Fields inherited from class javax.jmdns.JmDNS

VERSION

Constructor Summary

JmDNSImpl(InetAddress address, String name)
Create an instance of JmDNS and bind it to a specific network interface given its IP-address.

Method Summary

DNSOutgoing	addAnswer(DNSIncoming in, InetAddress addr, int port, DNSOutgoing out, DNSRecord rec) Add an answer to a question.
void	addListener(javax.jmdns.impl.DNSListener listener, DNSQuestion question) Add a listener for a question.
void	addServiceListener(String type, ServiceListener listener) Listen for services of a given type.
void	addServiceTypeListener(ServiceTypeListener listener) Listen for service types.
boolean	advanceState(DNSTask task) Sets the state and notifies all objects that wait on the ServiceInfo.
void	associateWithTask(DNSTask task, DNSState state) Sets the task associated with this Object.
boolean	cancelState() Sets the state and notifies all objects that wait on the ServiceInfo.
void	cancelStateTimer() Cancel the state task timer
void	cancelTimer() Cancel the generals task timer
void	cleanCache()
void	close()
boolean	closeState() Sets the state and notifies all objects that wait on the ServiceInfo.
DNSCache	getCache() Return the DNSCache associated with the cache variable
JmDNS.Delegate	getDelegate() Returns the instance delegate
JmDNSImpl	getDns() Returns the DNS associated with this object.
InetAddress	getGroup()
String	getHostName() Return the HostName associated with this JmDNS instance.
InetAddress	getInterface() Return the address of the interface to which this instance of JmDNS is bound.
long	getLastThrottleIncrement()
HostInfo	getLocalHost() Returns the local host info
String	getName() Return the name of the JmDNS instance.
DNSIncoming	getPlannedAnswer()
static Random	getRandom()
ServiceInfo	getServiceInfo(String type, String name) Get service information.
ServiceInfo	getServiceInfo(String type, String name, boolean persistent) Get service information.
ServiceInfo	getServiceInfo(String type, String name, boolean persistent, long timeout) Get service information.
ServiceInfo	getServiceInfo(String type, String name, long timeout) Get service information.
Map<String,ServiceInfo>	getServices()
Map<String,JmDNSImpl.ServiceTypeEntry>	getServiceTypes()
MulticastSocket	getSocket()
int	getThrottle()
void	ioLock()
void	ioUnlock()
boolean	isAnnounced() Returns true, if this is an announced state.
boolean	isAnnouncing() Returns true, if this is an announcing state.
boolean	isAssociatedWithTask(DNSTask task, DNSState state) Checks if this object is associated with the task and in the same state.
boolean	isCanceled() Returns true, if this is a canceled state.
boolean	isCanceling() Returns true, if this is a canceling state.
boolean	isClosed() Returns true, if this is a closed state.
boolean	isClosing() Returns true, if this is a closing state.
boolean	isProbing() Returns true, if this is a probing state.
ServiceInfo[]	list(String type) Returns a list of service infos of the specified type.
ServiceInfo[]	list(String type, long timeout) Returns a list of service infos of the specified type.
Map<String,ServiceInfo[]>	listBySubtype(String type) Returns a list of service infos of the specified type sorted by subtype.
Map<String,ServiceInfo[]>	listBySubtype(String type, long timeout) Returns a list of service infos of the specified type sorted by subtype.
static void	main(String[] argv) Main method to display API information if run from java -jar
void	printServices() Deprecated.
void	purgeStateTimer() Purge the state task timer
void	purgeTimer() Purge the general task timer
void	recover() Recover jmdns when there is an error.
boolean	recoverState() Sets the state and notifies all objects that wait on the ServiceInfo.
void	registerService(ServiceInfo infoAbstract) Register a service.
boolean	registerServiceType(String type) Register a service type.
void	removeAssociationWithTask(DNSTask task) Remove the association of the task with this Object.
void	removeListener(javax.jmdns.impl.DNSListener listener) Remove a listener from all outstanding questions.
void	removeServiceListener(String type, ServiceListener listener) Remove listener for services of a given type.
void	removeServiceTypeListener(ServiceTypeListener listener) Remove listener for service types.
void	renewServiceCollector(DNSRecord record) Renew a service when the record become stale.
void	requestServiceInfo(String type, String name) Request service information.
void	requestServiceInfo(String type, String name, boolean persistent) Request service information.
void	requestServiceInfo(String type, String name, boolean persistent, long timeout) Request service information.
void	requestServiceInfo(String type, String name, long timeout) Request service information.
void	respondToQuery(DNSIncoming in)
boolean	revertState() Sets the state and notifies all objects that wait on the ServiceInfo.
void	send(DNSOutgoing out) Send an outgoing multicast DNS message.
JmDNS.Delegate	setDelegate(JmDNS.Delegate delegate) Sets the instance delegate
void	setLastThrottleIncrement(long lastThrottleIncrement)
void	setPlannedAnswer(DNSIncoming plannedAnswer)
void	setThrottle(int throttle)
void	startAnnouncer() Start a new announcer task
void	startCanceler() Start a new canceler task
void	startProber() Start a new prober task
void	startReaper() Start a new reaper task.
void	startRenewer() Start a new renewer task
void	startResponder(DNSIncoming in, int port) Start a new responder task
void	startServiceInfoResolver(ServiceInfoImpl info) Start a new service info resolver task
void	startServiceResolver(String type) Start a new service resolver task
void	startTypeResolver() Start a new service type resolver task
String	toString()
void	unregisterAllServices() Unregister all services.
void	unregisterService(ServiceInfo infoAbstract) Unregister a service.
void	updateRecord(long now, DNSRecord rec, JmDNSImpl.Operation operation) Notify all listeners that a record was updated.
boolean	waitForAnnounced(long timeout) Waits for the object to be announced.
boolean	waitForCanceled(long timeout) Waits for the object to be canceled.

Methods inherited from class javax.jmdns.JmDNS

create, create, create, create

Methods inherited from class java.lang.Object

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

Field Detail

_shutdown

protected Thread _shutdown

This is the shutdown hook, we registered with the java runtime.

Constructor Detail

JmDNSImpl

public JmDNSImpl(InetAddress address,
                 String name)
          throws IOException

Create an instance of JmDNS and bind it to a specific network interface given its IP-address.

Parameters:

address - IP address to bind to.

name - name of the newly created JmDNS

Throws:

IOException

Method Detail

main

public static void main(String[] argv)

Main method to display API information if run from java -jar

Parameters:

argv - the command line arguments

advanceState

public boolean advanceState(DNSTask task)

Sets the state and notifies all objects that wait on the ServiceInfo.

Specified by:

advanceState in interface DNSStatefulObject

Parameters:

task - associated task

Returns:

truefalse otherwise.

See Also:

DNSState.advance()

revertState

public boolean revertState()

Sets the state and notifies all objects that wait on the ServiceInfo.

Specified by:

revertState in interface DNSStatefulObject

Returns:

truefalse otherwise.

See Also:

DNSState.revert()

cancelState

public boolean cancelState()

Sets the state and notifies all objects that wait on the ServiceInfo.

Specified by:

cancelState in interface DNSStatefulObject

Returns:

truefalse otherwise.

closeState

public boolean closeState()

Sets the state and notifies all objects that wait on the ServiceInfo.

Specified by:

closeState in interface DNSStatefulObject

Returns:

truefalse otherwise.

recoverState

public boolean recoverState()

Sets the state and notifies all objects that wait on the ServiceInfo.

Specified by:

recoverState in interface DNSStatefulObject

Returns:

truefalse otherwise.

getDns

public JmDNSImpl getDns()

Returns the DNS associated with this object.

Specified by:

getDns in interface DNSStatefulObject

Returns:

DNS resolver

associateWithTask

public void associateWithTask(DNSTask task,
                              DNSState state)

Sets the task associated with this Object.

Specified by:

associateWithTask in interface DNSStatefulObject

Parameters:

task - associated task

state - state of the task

removeAssociationWithTask

public void removeAssociationWithTask(DNSTask task)

Remove the association of the task with this Object.

Specified by:

removeAssociationWithTask in interface DNSStatefulObject

Parameters:

task - associated task

isAssociatedWithTask

public boolean isAssociatedWithTask(DNSTask task,
                                    DNSState state)

Checks if this object is associated with the task and in the same state.

Specified by:

isAssociatedWithTask in interface DNSStatefulObject

Parameters:

task - associated task

state - state of the task

Returns:

true is the task is associated with this object, false otherwise.

isProbing

public boolean isProbing()

Returns true, if this is a probing state.

Specified by:

isProbing in interface DNSStatefulObject

Returns:

true if probing state, false otherwise

isAnnouncing

public boolean isAnnouncing()

Returns true, if this is an announcing state.

Specified by:

isAnnouncing in interface DNSStatefulObject

Returns:

true if announcing state, false otherwise

isAnnounced

public boolean isAnnounced()

Returns true, if this is an announced state.

Specified by:

isAnnounced in interface DNSStatefulObject

Returns:

true if announced state, false otherwise

isCanceling

public boolean isCanceling()

Returns true, if this is a canceling state.

Specified by:

isCanceling in interface DNSStatefulObject

Returns:

true if canceling state, false otherwise

isCanceled

public boolean isCanceled()

Returns true, if this is a canceled state.

Specified by:

isCanceled in interface DNSStatefulObject

Returns:

true if canceled state, false otherwise

isClosing

public boolean isClosing()

Returns true, if this is a closing state.

Specified by:

isClosing in interface DNSStatefulObject

Returns:

true if closing state, false otherwise

isClosed

public boolean isClosed()

Returns true, if this is a closed state.

Specified by:

isClosed in interface DNSStatefulObject

Returns:

true if closed state, false otherwise

waitForAnnounced

public boolean waitForAnnounced(long timeout)

Waits for the object to be announced.

Specified by:

waitForAnnounced in interface DNSStatefulObject

Parameters:

timeout - the maximum time to wait in milliseconds.

Returns:

true if the object is announced, false otherwise

waitForCanceled

public boolean waitForCanceled(long timeout)

Waits for the object to be canceled.

Specified by:

waitForCanceled in interface DNSStatefulObject

Parameters:

timeout - the maximum time to wait in milliseconds.

Returns:

true if the object is canceled, false otherwise

getCache

public DNSCache getCache()

Return the DNSCache associated with the cache variable

Returns:

DNS cache

getName

public String getName()

Return the name of the JmDNS instance. This is an arbitrary string that is useful for distinguishing instances.

Specified by:

getName in class JmDNS

Returns:

name of the JmDNS

getHostName

public String getHostName()

Return the HostName associated with this JmDNS instance. Note: May not be the same as what started. The host name is subject to negotiation.

Specified by:

getHostName in class JmDNS

Returns:

Host name

getLocalHost

public HostInfo getLocalHost()

Returns the local host info

Returns:

local host info

getInterface

public InetAddress getInterface()
                         throws IOException

Return the address of the interface to which this instance of JmDNS is bound.

Specified by:

getInterface in class JmDNS

Returns:

Internet Address

Throws:

IOException - if there is an error in the underlying protocol, such as a TCP error.

getServiceInfo

public ServiceInfo getServiceInfo(String type,
                                  String name)

Get service information. If the information is not cached, the method will block until updated information is received.

Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.

Specified by:

getServiceInfo in class JmDNS

Parameters:

type - fully qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

Returns:

null if the service information cannot be obtained

getServiceInfo

public ServiceInfo getServiceInfo(String type,
                                  String name,
                                  long timeout)

Get service information. If the information is not cached, the method will block for the given timeout until updated information is received.

Usage note: If you call this method from the AWT event dispatcher thread, use a small timeout, or you will make the user interface unresponsive.

Specified by:

getServiceInfo in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

timeout - timeout in milliseconds. Typical timeout should be 5s.

Returns:

null if the service information cannot be obtained

getServiceInfo

public ServiceInfo getServiceInfo(String type,
                                  String name,
                                  boolean persistent)

Get service information. If the information is not cached, the method will block until updated information is received.

Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.

Specified by:

getServiceInfo in class JmDNS

Parameters:

type - fully qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

persistent - if true ServiceListener.resolveService will be called whenever new new information is received.

Returns:

null if the service information cannot be obtained

getServiceInfo

public ServiceInfo getServiceInfo(String type,
                                  String name,
                                  boolean persistent,
                                  long timeout)

Get service information. If the information is not cached, the method will block for the given timeout until updated information is received.

Usage note: If you call this method from the AWT event dispatcher thread, use a small timeout, or you will make the user interface unresponsive.

Specified by:

getServiceInfo in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

persistent - if true ServiceListener.resolveService will be called whenever new new information is received.

timeout - timeout in milliseconds. Typical timeout should be 5s.

Returns:

null if the service information cannot be obtained

requestServiceInfo

public void requestServiceInfo(String type,
                               String name)

Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.

Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.

Specified by:

requestServiceInfo in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

requestServiceInfo

public void requestServiceInfo(String type,
                               String name,
                               boolean persistent)

Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.

Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.

Specified by:

requestServiceInfo in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

persistent - if true ServiceListener.resolveService will be called whenever new new information is received.

requestServiceInfo

public void requestServiceInfo(String type,
                               String name,
                               long timeout)

Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.

Specified by:

requestServiceInfo in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

timeout - timeout in milliseconds

requestServiceInfo

public void requestServiceInfo(String type,
                               String name,
                               boolean persistent,
                               long timeout)

Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.

Specified by:

requestServiceInfo in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local. .

name - unqualified service name, such as foobar .

persistent - if true ServiceListener.resolveService will be called whenever new new information is received.

timeout - timeout in milliseconds

addServiceTypeListener

public void addServiceTypeListener(ServiceTypeListener listener)
                            throws IOException

Listen for service types.

Specified by:

addServiceTypeListener in class JmDNS

Parameters:

listener - listener for service types

Throws:

IOException - if there is an error in the underlying protocol, such as a TCP error.

removeServiceTypeListener

public void removeServiceTypeListener(ServiceTypeListener listener)

Remove listener for service types.

Specified by:

removeServiceTypeListener in class JmDNS

Parameters:

listener - listener for service types

addServiceListener

public void addServiceListener(String type,
                               ServiceListener listener)

Listen for services of a given type. The type has to be a fully qualified type name such as _http._tcp.local..

Specified by:

addServiceListener in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local..

listener - listener for service updates

removeServiceListener

public void removeServiceListener(String type,
                                  ServiceListener listener)

Remove listener for services of a given type.

Specified by:

removeServiceListener in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local..

listener - listener for service updates

registerService

public void registerService(ServiceInfo infoAbstract)
                     throws IOException

Register a service. The service is registered for access by other jmdns clients. The name of the service may be changed to make it unique.
Note that the given ServiceInfo is bound to this JmDNS instance, and should not be reused for any other JmDNS.registerService(ServiceInfo).

Specified by:

registerService in class JmDNS

Parameters:

infoAbstract - service info to register

Throws:

IOException - if there is an error in the underlying protocol, such as a TCP error.

unregisterService

public void unregisterService(ServiceInfo infoAbstract)

Unregister a service. The service should have been registered.

Note: Unregistered services will not disappear form the list of services immediately. According to the specification, when unregistering services we send goodbye packets and then wait 1s before purging the cache.
This is support for shared records that can be rescued by some other cooperation DNS.

 Clients receiving a Multicast DNS Response with a TTL of zero SHOULD NOT immediately delete the record from the cache, but instead record a TTL of 1 and then delete the record one second later.
 

Specified by:

unregisterService in class JmDNS

Parameters:

infoAbstract - service info to remove

unregisterAllServices

public void unregisterAllServices()

Unregister all services.

Specified by:

unregisterAllServices in class JmDNS

registerServiceType

public boolean registerServiceType(String type)

Register a service type. If this service type was not already known, all service listeners will be notified of the new service type.

Service types are automatically registered as they are discovered.

Specified by:

registerServiceType in class JmDNS

Parameters:

type - full qualified service type, such as _http._tcp.local..

Returns:

true if the type or subtype was added, false if the type was already registered.

addListener

public void addListener(javax.jmdns.impl.DNSListener listener,
                        DNSQuestion question)

Add a listener for a question. The listener will receive updates of answers to the question as they arrive, or from the cache if they are already available.

Parameters:

listener - DSN listener

question - DNS query

removeListener

public void removeListener(javax.jmdns.impl.DNSListener listener)

Remove a listener from all outstanding questions. The listener will no longer receive any updates.

Parameters:

listener - DSN listener

renewServiceCollector

public void renewServiceCollector(DNSRecord record)

Renew a service when the record become stale. If there is no service collector for the type this method does nothing.

Parameters:

record - DNS record

updateRecord

public void updateRecord(long now,
                         DNSRecord rec,
                         JmDNSImpl.Operation operation)

Notify all listeners that a record was updated.

Parameters:

now - update date

rec - DNS record

operation - DNS cache operation

respondToQuery

public void respondToQuery(DNSIncoming in)

addAnswer

public DNSOutgoing addAnswer(DNSIncoming in,
                             InetAddress addr,
                             int port,
                             DNSOutgoing out,
                             DNSRecord rec)
                      throws IOException

Add an answer to a question. Deal with the case when the outgoing packet overflows

Parameters:

in -

addr -

port -

out -

rec -

Returns:

outgoing answer

Throws:

IOException

send

public void send(DNSOutgoing out)
          throws IOException

Send an outgoing multicast DNS message.

Parameters:

out -

Throws:

IOException

purgeTimer

public void purgeTimer()

Description copied from interface: DNSTaskStarter

Purge the general task timer

Specified by:

purgeTimer in interface DNSTaskStarter

purgeStateTimer

public void purgeStateTimer()

Description copied from interface: DNSTaskStarter

Purge the state task timer

Specified by:

purgeStateTimer in interface DNSTaskStarter

cancelTimer

public void cancelTimer()

Description copied from interface: DNSTaskStarter

Cancel the generals task timer

Specified by:

cancelTimer in interface DNSTaskStarter

cancelStateTimer

public void cancelStateTimer()

Description copied from interface: DNSTaskStarter

Cancel the state task timer

Specified by:

cancelStateTimer in interface DNSTaskStarter

startProber

public void startProber()

Description copied from interface: DNSTaskStarter

Start a new prober task

Specified by:

startProber in interface DNSTaskStarter

startAnnouncer

public void startAnnouncer()

Description copied from interface: DNSTaskStarter

Start a new announcer task

Specified by:

startAnnouncer in interface DNSTaskStarter

startRenewer

public void startRenewer()

Description copied from interface: DNSTaskStarter

Start a new renewer task

Specified by:

startRenewer in interface DNSTaskStarter

startCanceler

public void startCanceler()

Description copied from interface: DNSTaskStarter

Start a new canceler task

Specified by:

startCanceler in interface DNSTaskStarter

startReaper

public void startReaper()

Description copied from interface: DNSTaskStarter

Start a new reaper task. There is only supposed to be one reaper running at a time.

Specified by:

startReaper in interface DNSTaskStarter

startServiceInfoResolver

public void startServiceInfoResolver(ServiceInfoImpl info)

Description copied from interface: DNSTaskStarter

Start a new service info resolver task

Specified by:

startServiceInfoResolver in interface DNSTaskStarter

Parameters:

info - service info to resolve

startTypeResolver

public void startTypeResolver()

Description copied from interface: DNSTaskStarter

Start a new service type resolver task

Specified by:

startTypeResolver in interface DNSTaskStarter

startServiceResolver

public void startServiceResolver(String type)

Description copied from interface: DNSTaskStarter

Start a new service resolver task

Specified by:

startServiceResolver in interface DNSTaskStarter

Parameters:

type - service type to resolve

startResponder

public void startResponder(DNSIncoming in,
                           int port)

Description copied from interface: DNSTaskStarter

Start a new responder task

Specified by:

startResponder in interface DNSTaskStarter

Parameters:

in - incoming message

port - incoming port

recover

public void recover()

Recover jmdns when there is an error.

cleanCache

public void cleanCache()

close

public void close()

Specified by:

close in interface Closeable

printServices

@Deprecated
public void printServices()

Deprecated.

List Services and serviceTypes. Debugging Only

Specified by:

printServices in class JmDNS

toString

public String toString()

Overrides:

toString in class Object

list

public ServiceInfo[] list(String type)

Returns a list of service infos of the specified type.

Specified by:

list in class JmDNS

Parameters:

type - Service type name, such as _http._tcp.local..

Returns:

An array of service instance.

list

public ServiceInfo[] list(String type,
                          long timeout)

Returns a list of service infos of the specified type.

Specified by:

list in class JmDNS

Parameters:

type - Service type name, such as _http._tcp.local..

timeout - timeout in milliseconds. Typical timeout should be 6s.

Returns:

An array of service instance.

listBySubtype

public Map<String,ServiceInfo[]> listBySubtype(String type)

Returns a list of service infos of the specified type sorted by subtype. Any service that do not register a subtype is listed in the empty subtype section.

Specified by:

listBySubtype in class JmDNS

Parameters:

type - Service type name, such as _http._tcp.local..

Returns:

A dictionary of service info by subtypes.

listBySubtype

public Map<String,ServiceInfo[]> listBySubtype(String type,
                                               long timeout)

Returns a list of service infos of the specified type sorted by subtype. Any service that do not register a subtype is listed in the empty subtype section.

Specified by:

listBySubtype in class JmDNS

Parameters:

type - Service type name, such as _http._tcp.local..

timeout - timeout in milliseconds. Typical timeout should be 6s.

Returns:

A dictionary of service info by subtypes.

getServices

public Map<String,ServiceInfo> getServices()

setLastThrottleIncrement

public void setLastThrottleIncrement(long lastThrottleIncrement)

getLastThrottleIncrement

public long getLastThrottleIncrement()

setThrottle

public void setThrottle(int throttle)

getThrottle

public int getThrottle()

getRandom

public static Random getRandom()

ioLock

public void ioLock()

ioUnlock

public void ioUnlock()

setPlannedAnswer

public void setPlannedAnswer(DNSIncoming plannedAnswer)

getPlannedAnswer

public DNSIncoming getPlannedAnswer()

getServiceTypes

public Map<String,JmDNSImpl.ServiceTypeEntry> getServiceTypes()

getSocket

public MulticastSocket getSocket()

getGroup

public InetAddress getGroup()

getDelegate

public JmDNS.Delegate getDelegate()

Description copied from class: JmDNS

Returns the instance delegate

Specified by:

getDelegate in class JmDNS

Returns:

instance delegate

setDelegate

public JmDNS.Delegate setDelegate(JmDNS.Delegate delegate)

Description copied from class: JmDNS

Sets the instance delegate

Specified by:

setDelegate in class JmDNS

Parameters:

delegate - new instance delegate

Returns:

previous instance delegate