Package com.netflix.eureka

Class EurekaBootStrap

java.lang.Object

com.netflix.eureka.EurekaBootStrap

All Implemented Interfaces:

jakarta.servlet.ServletContextListener, java.util.EventListener

public abstract class EurekaBootStrap
extends java.lang.Object
implements jakarta.servlet.ServletContextListener

The class that kick starts the eureka server.

The eureka server is configured by using the configuration EurekaServerConfig specified by eureka.server.props in the classpath. The eureka client component is also initialized by using the configuration EurekaInstanceConfig specified by eureka.client.props. If the server runs in the AWS cloud, the eureka server binds it to the elastic ip as specified.

Field Summary

Fields

Modifier and Type	Field	Description
protected AwsBinder	awsBinder
protected EurekaServerContext	serverContext

Constructor Summary

Constructors

Constructor	Description
EurekaBootStrap()	Construct a default instance of Eureka boostrap
EurekaBootStrap(com.netflix.discovery.EurekaClient eurekaClient)	Construct an instance of eureka bootstrap with the supplied eureka client

Method Summary

Modifier and Type	Method	Description
void	contextDestroyed(jakarta.servlet.ServletContextEvent event)	Handles Eureka cleanup, including shutting down all monitors and yielding all EIPs.
void	contextInitialized(jakarta.servlet.ServletContextEvent event)	Initializes Eureka, including syncing up with other Eureka peers and publishing the registry.
protected void	destroyEurekaEnvironment()	Users can override to clean up the environment themselves.
protected void	destroyEurekaServerContext()	Server context shutdown hook.
protected com.netflix.discovery.AbstractDiscoveryClientOptionalArgs<?>	getDiscoveryClientOptionalArgs()
protected abstract EurekaServerHttpClientFactory	getEurekaServerHttpClientFactory()
protected abstract PeerEurekaNodes	getPeerEurekaNodes(PeerAwareInstanceRegistry registry, EurekaServerConfig eurekaServerConfig, com.netflix.discovery.EurekaClientConfig eurekaClientConfig, ServerCodecs serverCodecs, com.netflix.appinfo.ApplicationInfoManager applicationInfoManager)
protected abstract com.netflix.discovery.shared.transport.jersey.TransportClientFactories	getTransportClientFactories()
protected void	initEurekaEnvironment()	Users can override to initialize the environment themselves.
protected void	initEurekaServerContext()	init hook for server context.
protected boolean	isAws(com.netflix.appinfo.InstanceInfo selfInstanceInfo)
protected boolean	isCloud(com.netflix.config.DeploymentContext deploymentContext)

Methods inherited from class java.lang.Object

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

Field Detail

serverContext

protected volatile EurekaServerContext serverContext

awsBinder

protected volatile AwsBinder awsBinder

Constructor Detail

EurekaBootStrap

public EurekaBootStrap()

Construct a default instance of Eureka boostrap

EurekaBootStrap

public EurekaBootStrap(com.netflix.discovery.EurekaClient eurekaClient)

Construct an instance of eureka bootstrap with the supplied eureka client

Parameters:

eurekaClient - the eureka client to bootstrap

Method Detail

contextInitialized

public void contextInitialized(jakarta.servlet.ServletContextEvent event)

Initializes Eureka, including syncing up with other Eureka peers and publishing the registry.

Specified by:

contextInitialized in interface jakarta.servlet.ServletContextListener

See Also:

ServletContextListener.contextInitialized(jakarta.servlet.ServletContextEvent)

initEurekaEnvironment

protected void initEurekaEnvironment()
                              throws java.lang.Exception

Users can override to initialize the environment themselves.

Throws:

java.lang.Exception

initEurekaServerContext

protected void initEurekaServerContext()
                                throws java.lang.Exception

init hook for server context. Override for custom logic.

Throws:

java.lang.Exception

getDiscoveryClientOptionalArgs

protected com.netflix.discovery.AbstractDiscoveryClientOptionalArgs<?> getDiscoveryClientOptionalArgs()

getTransportClientFactories

protected abstract com.netflix.discovery.shared.transport.jersey.TransportClientFactories getTransportClientFactories()

getEurekaServerHttpClientFactory

protected abstract EurekaServerHttpClientFactory getEurekaServerHttpClientFactory()

getPeerEurekaNodes

protected abstract PeerEurekaNodes getPeerEurekaNodes(PeerAwareInstanceRegistry registry,
                                                      EurekaServerConfig eurekaServerConfig,
                                                      com.netflix.discovery.EurekaClientConfig eurekaClientConfig,
                                                      ServerCodecs serverCodecs,
                                                      com.netflix.appinfo.ApplicationInfoManager applicationInfoManager)

contextDestroyed

public void contextDestroyed(jakarta.servlet.ServletContextEvent event)

Handles Eureka cleanup, including shutting down all monitors and yielding all EIPs.

Specified by:

contextDestroyed in interface jakarta.servlet.ServletContextListener

See Also:

ServletContextListener.contextDestroyed(jakarta.servlet.ServletContextEvent)

destroyEurekaServerContext

protected void destroyEurekaServerContext()
                                   throws java.lang.Exception

Server context shutdown hook. Override for custom logic

Throws:

java.lang.Exception

destroyEurekaEnvironment

protected void destroyEurekaEnvironment()
                                 throws java.lang.Exception

Users can override to clean up the environment themselves.

Throws:

java.lang.Exception

isAws

protected boolean isAws(com.netflix.appinfo.InstanceInfo selfInstanceInfo)

isCloud

protected boolean isCloud(com.netflix.config.DeploymentContext deploymentContext)