org.apache.sling.discovery.base.connectors.announcement

Class AnnouncementRegistryImpl

java.lang.Object

org.apache.sling.discovery.base.connectors.announcement.AnnouncementRegistryImpl

All Implemented Interfaces:

AnnouncementRegistry

@Service(value=AnnouncementRegistry.class)
public class AnnouncementRegistryImpl
extends Object
implements AnnouncementRegistry

Default implementation of the AnnouncementRegistry which handles JSON-backed announcements and does so by storing them in a local like /var/discovery/impl/clusterNodes/$slingId/announcement.

Constructor Summary

Constructors

Constructor and Description
AnnouncementRegistryImpl()

Method Summary

Modifier and Type	Method and Description
protected void	activate()
void	addAllExcept(Announcement target, ClusterView clusterView, AnnouncementFilter filter) Add all registered announcements to the given target announcement that are accepted by the given filter
void	checkExpiredAnnouncements() Check for expired announcements and remove any if applicable
boolean	hasActiveAnnouncement(String ownerId) Whether or not the given owner has an active (ie not expired) announcement registered
Collection<Announcement>	listAnnouncementsInSameCluster(ClusterView localClusterView) list all announcements that were received by instances in the local cluster
Collection<InstanceDescription>	listInstances(ClusterView localClusterView) Returns the list of instances contained in all non-expired announcements of this registry
Collection<Announcement>	listLocalAnnouncements() list all announcements that were received (incoming or inherited) by this instance
Collection<CachedAnnouncement>	listLocalIncomingAnnouncements() list all announcements that this instance received (incoming)
long	registerAnnouncement(Announcement topologyAnnouncement) Register the given announcement - and returns the backoff interval (in seconds) for stable connectors - or -1 if the registration was not successful (likely indicating a loop)
static AnnouncementRegistryImpl	testConstructor(ResourceResolverFactory resourceResolverFactory, SlingSettingsService slingSettingsService, BaseConfig config)
static AnnouncementRegistryImpl	testConstructorAndActivate(ResourceResolverFactory resourceResolverFactory, SlingSettingsService slingSettingsService, BaseConfig config)
void	unregisterAnnouncement(String ownerId) Unregister the announcement owned by the given slingId

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnouncementRegistryImpl

public AnnouncementRegistryImpl()

Method Detail

testConstructorAndActivate

public static AnnouncementRegistryImpl testConstructorAndActivate(ResourceResolverFactory resourceResolverFactory,
                                                                  SlingSettingsService slingSettingsService,
                                                                  BaseConfig config)

testConstructor

public static AnnouncementRegistryImpl testConstructor(ResourceResolverFactory resourceResolverFactory,
                                                       SlingSettingsService slingSettingsService,
                                                       BaseConfig config)

activate

@Activate
protected void activate()

unregisterAnnouncement

public void unregisterAnnouncement(String ownerId)

Description copied from interface: AnnouncementRegistry

Unregister the announcement owned by the given slingId

Specified by:

unregisterAnnouncement in interface AnnouncementRegistry

listLocalAnnouncements

public Collection<Announcement> listLocalAnnouncements()

Description copied from interface: AnnouncementRegistry

list all announcements that were received (incoming or inherited) by this instance

Specified by:

listLocalAnnouncements in interface AnnouncementRegistry

listLocalIncomingAnnouncements

public Collection<CachedAnnouncement> listLocalIncomingAnnouncements()

Description copied from interface: AnnouncementRegistry

list all announcements that this instance received (incoming)

Specified by:

listLocalIncomingAnnouncements in interface AnnouncementRegistry

listAnnouncementsInSameCluster

public Collection<Announcement> listAnnouncementsInSameCluster(ClusterView localClusterView)

Description copied from interface: AnnouncementRegistry

list all announcements that were received by instances in the local cluster

Specified by:

listAnnouncementsInSameCluster in interface AnnouncementRegistry

hasActiveAnnouncement

public boolean hasActiveAnnouncement(String ownerId)

Description copied from interface: AnnouncementRegistry

Whether or not the given owner has an active (ie not expired) announcement registered

Specified by:

hasActiveAnnouncement in interface AnnouncementRegistry

registerAnnouncement

public long registerAnnouncement(Announcement topologyAnnouncement)

Description copied from interface: AnnouncementRegistry

Register the given announcement - and returns the backoff interval (in seconds) for stable connectors - or -1 if the registration was not successful (likely indicating a loop)

Specified by:

registerAnnouncement in interface AnnouncementRegistry

Returns:

the backoff interval (in seconds) for stable connectors - or -1 if the registration was not successful (likely indicating a loop)

addAllExcept

public void addAllExcept(Announcement target,
                         ClusterView clusterView,
                         AnnouncementFilter filter)

Description copied from interface: AnnouncementRegistry

Add all registered announcements to the given target announcement that are accepted by the given filter

Specified by:

addAllExcept in interface AnnouncementRegistry

checkExpiredAnnouncements

public void checkExpiredAnnouncements()

Description copied from interface: AnnouncementRegistry

Check for expired announcements and remove any if applicable

Specified by:

checkExpiredAnnouncements in interface AnnouncementRegistry

listInstances

public Collection<InstanceDescription> listInstances(ClusterView localClusterView)

Description copied from interface: AnnouncementRegistry

Returns the list of instances contained in all non-expired announcements of this registry

Specified by:

listInstances in interface AnnouncementRegistry