org.springframework.cloud.zookeeper.discovery.watcher

Class DefaultDependencyWatcher

java.lang.Object

org.springframework.cloud.zookeeper.discovery.watcher.DefaultDependencyWatcher

All Implemented Interfaces:

EventListener, DependencyRegistrationHookProvider, org.springframework.context.ApplicationListener<org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent<?>>

public class DefaultDependencyWatcher
extends Object
implements DependencyRegistrationHookProvider, org.springframework.context.ApplicationListener<org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent<?>>

This Dependency Watcher will verify the presence of dependencies upon startup and registers listeners to changing of state of dependencies during the application's lifecycle.

Since:

1.0.0

Author:

Marcin Grzejszczak, Michal Chmielarz, 4financeIT

See Also:

DependencyPresenceOnStartupVerifier, DependencyWatcherListener

Constructor Summary

Constructors

Constructor and Description
DefaultDependencyWatcher(org.apache.curator.x.discovery.ServiceDiscovery<ZookeeperInstance> serviceDiscovery, DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier, List<DependencyWatcherListener> dependencyWatcherListeners, ZookeeperDependencies zookeeperDependencies)
DefaultDependencyWatcher(ZookeeperServiceDiscovery zookeeperServiceDiscovery, DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier, List<DependencyWatcherListener> dependencyWatcherListeners, ZookeeperDependencies zookeeperDependencies) Deprecated.

Method Summary

Modifier and Type	Method and Description
void	clearDependencyRegistrationHooks() Unregister hooks upon dependencies registration
void	onApplicationEvent(org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent<?> event)
void	registerDependencyRegistrationHooks() Register hooks upon dependencies registration

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultDependencyWatcher

@Deprecated
public DefaultDependencyWatcher(ZookeeperServiceDiscovery zookeeperServiceDiscovery,
                                            DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier,
                                            List<DependencyWatcherListener> dependencyWatcherListeners,
                                            ZookeeperDependencies zookeeperDependencies)

Deprecated.

DefaultDependencyWatcher

public DefaultDependencyWatcher(org.apache.curator.x.discovery.ServiceDiscovery<ZookeeperInstance> serviceDiscovery,
                                DependencyPresenceOnStartupVerifier dependencyPresenceOnStartupVerifier,
                                List<DependencyWatcherListener> dependencyWatcherListeners,
                                ZookeeperDependencies zookeeperDependencies)

Method Detail

onApplicationEvent

public void onApplicationEvent(org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent<?> event)

Specified by:

onApplicationEvent in interface org.springframework.context.ApplicationListener<org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent<?>>

registerDependencyRegistrationHooks

public void registerDependencyRegistrationHooks()

Description copied from interface: DependencyRegistrationHookProvider

Register hooks upon dependencies registration

Specified by:

registerDependencyRegistrationHooks in interface DependencyRegistrationHookProvider

clearDependencyRegistrationHooks

public void clearDependencyRegistrationHooks()
                                      throws IOException

Description copied from interface: DependencyRegistrationHookProvider

Unregister hooks upon dependencies registration

Specified by:

clearDependencyRegistrationHooks in interface DependencyRegistrationHookProvider

Throws:

IOException