org.springframework.cloud.netflix.eureka

Class EurekaHealthCheckHandler

java.lang.Object

org.springframework.cloud.netflix.eureka.EurekaHealthCheckHandler

All Implemented Interfaces:

com.netflix.appinfo.HealthCheckHandler, org.springframework.beans.factory.Aware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware, org.springframework.context.Lifecycle, org.springframework.core.Ordered

public class EurekaHealthCheckHandler
extends Object
implements com.netflix.appinfo.HealthCheckHandler, org.springframework.context.ApplicationContextAware, org.springframework.beans.factory.InitializingBean, org.springframework.core.Ordered, org.springframework.context.Lifecycle

A Eureka health checker, maps the application status into InstanceInfo.InstanceStatus that will be propagated to Eureka registry. On each heartbeat Eureka performs the health check invoking registered HealthCheckHandler. By default this implementation will perform aggregation of all registered HealthIndicator through registered StatusAggregator. A null status is returned when the application context is closed (or in the process of being closed). This prevents Eureka from updating the health status and only consider the status present in the current InstanceInfo.

Author:

Jakub Narloch, Spencer Gibb, Nowrin Anwar Joyita, Bertrand Renuart, Olga Maciaszek-Sharma

See Also:

HealthCheckHandler, StatusAggregator

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
EurekaHealthCheckHandler(org.springframework.boot.actuate.health.StatusAggregator statusAggregator)

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet()
protected com.netflix.appinfo.InstanceInfo.InstanceStatus	getHealthStatus()
int	getOrder()
com.netflix.appinfo.InstanceInfo.InstanceStatus	getStatus(com.netflix.appinfo.InstanceInfo.InstanceStatus instanceStatus)
protected org.springframework.boot.actuate.health.Status	getStatus(org.springframework.boot.actuate.health.StatusAggregator statusAggregator)
boolean	isRunning()
protected com.netflix.appinfo.InstanceInfo.InstanceStatus	mapToInstanceStatus(org.springframework.boot.actuate.health.Status status)
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

EurekaHealthCheckHandler

public EurekaHealthCheckHandler(org.springframework.boot.actuate.health.StatusAggregator statusAggregator)

Method Detail

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

afterPropertiesSet

public void afterPropertiesSet()

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

getStatus

public com.netflix.appinfo.InstanceInfo.InstanceStatus getStatus(com.netflix.appinfo.InstanceInfo.InstanceStatus instanceStatus)

Specified by:

getStatus in interface com.netflix.appinfo.HealthCheckHandler

getHealthStatus

protected com.netflix.appinfo.InstanceInfo.InstanceStatus getHealthStatus()

getStatus

protected org.springframework.boot.actuate.health.Status getStatus(org.springframework.boot.actuate.health.StatusAggregator statusAggregator)

mapToInstanceStatus

protected com.netflix.appinfo.InstanceInfo.InstanceStatus mapToInstanceStatus(org.springframework.boot.actuate.health.Status status)

getOrder

public int getOrder()

Specified by:

getOrder in interface org.springframework.core.Ordered

start

public void start()

Specified by:

start in interface org.springframework.context.Lifecycle

stop

public void stop()

Specified by:

stop in interface org.springframework.context.Lifecycle

isRunning

public boolean isRunning()

Specified by:

isRunning in interface org.springframework.context.Lifecycle