org.springframework.web.socket.messaging

Class DefaultSimpUserRegistry

java.lang.Object

org.springframework.web.socket.messaging.DefaultSimpUserRegistry

All Implemented Interfaces:

EventListener, ApplicationListener<ApplicationEvent>, SmartApplicationListener, Ordered, SimpUserRegistry

public class DefaultSimpUserRegistry
extends Object
implements SimpUserRegistry, SmartApplicationListener

Default, mutable, thread-safe implementation of SimpUserRegistry that listens ApplicationContext events of type AbstractSubProtocolEvent to keep track of user presence and subscription information.

Since:

4.2

Author:

Rossen Stoyanchev

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
DefaultSimpUserRegistry()

Method Summary

Modifier and Type	Method and Description
Set<SimpSubscription>	findSubscriptions(SimpSubscriptionMatcher matcher) Find subscriptions with the given matcher.
int	getOrder() Get the order value of this object.
SimpUser	getUser(String userName) Get the user for the given name.
Set<SimpUser>	getUsers() Return a snapshot of all connected users.
void	onApplicationEvent(ApplicationEvent event) Handle an application event.
boolean	supportsEventType(Class<? extends ApplicationEvent> eventType) Determine whether this listener actually supports the given event type.
boolean	supportsSourceType(Class<?> sourceType) Determine whether this listener actually supports the given source type.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultSimpUserRegistry

public DefaultSimpUserRegistry()

Method Detail

getUser

public SimpUser getUser(String userName)

Description copied from interface: SimpUserRegistry

Get the user for the given name.

Specified by:

getUser in interface SimpUserRegistry

Parameters:

userName - the name of the user to look up

Returns:

the user or null if not connected

getUsers

public Set<SimpUser> getUsers()

Description copied from interface: SimpUserRegistry

Return a snapshot of all connected users. The returned set is a copy and will never be modified.

Specified by:

getUsers in interface SimpUserRegistry

Returns:

the connected users or an empty set.

findSubscriptions

public Set<SimpSubscription> findSubscriptions(SimpSubscriptionMatcher matcher)

Description copied from interface: SimpUserRegistry

Find subscriptions with the given matcher.

Specified by:

findSubscriptions in interface SimpUserRegistry

Parameters:

matcher - the matcher to use

Returns:

a set of matching subscriptions or an empty set.

supportsEventType

public boolean supportsEventType(Class<? extends ApplicationEvent> eventType)

Description copied from interface: SmartApplicationListener

Determine whether this listener actually supports the given event type.

Specified by:

supportsEventType in interface SmartApplicationListener

supportsSourceType

public boolean supportsSourceType(Class<?> sourceType)

Description copied from interface: SmartApplicationListener

Determine whether this listener actually supports the given source type.

Specified by:

supportsSourceType in interface SmartApplicationListener

onApplicationEvent

public void onApplicationEvent(ApplicationEvent event)

Description copied from interface: ApplicationListener

Handle an application event.

Specified by:

onApplicationEvent in interface ApplicationListener<ApplicationEvent>

Parameters:

event - the event to respond to

getOrder

public int getOrder()

Description copied from interface: Ordered

Get the order value of this object.

Higher values are interpreted as lower priority. As a consequence, the object with the lowest value has the highest priority (somewhat analogous to Servlet load-on-startup values).

Same order values will result in arbitrary sort positions for the affected objects.

Specified by:

getOrder in interface Ordered

Returns:

the order value

See Also:

Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

toString

public String toString()

Overrides:

toString in class Object