Package javax.jmdns.impl

Class DNSStatefulObject.DefaultImplementation

java.lang.Object

java.util.concurrent.locks.ReentrantLock

javax.jmdns.impl.DNSStatefulObject.DefaultImplementation

All Implemented Interfaces:

java.io.Serializable, java.util.concurrent.locks.Lock, DNSStatefulObject

Direct Known Subclasses:

HostInfo.HostInfoState, ServiceInfoImpl.ServiceInfoState

Enclosing interface:

DNSStatefulObject

public static class DNSStatefulObject.DefaultImplementation
extends java.util.concurrent.locks.ReentrantLock
implements DNSStatefulObject

See Also:

Serialized Form

Nested Class Summary

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

DNSStatefulObject.DefaultImplementation, DNSStatefulObject.DNSStatefulObjectSemaphore

Field Summary

Fields

Modifier and Type	Field	Description
private DNSStatefulObject.DNSStatefulObjectSemaphore	_announcing
private DNSStatefulObject.DNSStatefulObjectSemaphore	_canceling
private JmDNSImpl	_dns
protected DNSState	_state
protected DNSTask	_task
private static org.slf4j.Logger	logger
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
DefaultImplementation()

Method Summary

Modifier and Type	Method	Description
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.
boolean	closeState()	Sets the state and notifies all objects that wait on the ServiceInfo.
JmDNSImpl	getDns()	Returns the DNS associated with this object.
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.
boolean	recoverState()	Sets the state and notifies all objects that wait on the ServiceInfo.
void	removeAssociationWithTask(DNSTask task)	Remove the association of the task with this Object.
boolean	revertState()	Sets the state and notifies all objects that wait on the ServiceInfo.
protected void	setDns(JmDNSImpl dns)
protected void	setState(DNSState state)
protected void	setTask(DNSTask task)
java.lang.String	toString()
boolean	waitForAnnounced(long timeout)	Waits for the object to be announced.
boolean	waitForCanceled(long timeout)	Waits for the object to be canceled.
private boolean	willCancel()
private boolean	willClose()

Methods inherited from class java.util.concurrent.locks.ReentrantLock

getHoldCount, getOwner, getQueuedThreads, getQueueLength, getWaitingThreads, getWaitQueueLength, hasQueuedThread, hasQueuedThreads, hasWaiters, isFair, isHeldByCurrentThread, isLocked, lock, lockInterruptibly, newCondition, tryLock, tryLock, unlock

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static org.slf4j.Logger logger

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

_dns

private volatile JmDNSImpl _dns

_task

protected volatile DNSTask _task

_state

protected volatile DNSState _state

_announcing

private final DNSStatefulObject.DNSStatefulObjectSemaphore _announcing

_canceling

private final DNSStatefulObject.DNSStatefulObjectSemaphore _canceling

Constructor Detail

DefaultImplementation

public DefaultImplementation()

Method Detail

getDns

public JmDNSImpl getDns()

Returns the DNS associated with this object.

Specified by:

getDns in interface DNSStatefulObject

Returns:

DNS resolver

setDns

protected void setDns(JmDNSImpl dns)

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.

setTask

protected void setTask(DNSTask task)

setState

protected void setState(DNSState state)

Parameters:

state - the state to set

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:

true if the state was changed by this thread, false 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:

true if the state was changed by this thread, false 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:

true if the state was changed by this thread, false otherwise.

closeState

public boolean closeState()

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

Specified by:

closeState in interface DNSStatefulObject

Returns:

true if the state was changed by this thread, false otherwise.

recoverState

public boolean recoverState()

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

Specified by:

recoverState in interface DNSStatefulObject

Returns:

true if the state was changed by this thread, 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

willCancel

private boolean willCancel()

willClose

private boolean willClose()

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

toString

public java.lang.String toString()

Overrides:

toString in class java.util.concurrent.locks.ReentrantLock