org.apache.hadoop.service

Class LoggingStateChangeListener

java.lang.Object

org.apache.hadoop.service.LoggingStateChangeListener

All Implemented Interfaces:

ServiceStateChangeListener

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class LoggingStateChangeListener
extends Object
implements ServiceStateChangeListener

This is a state change listener that logs events at INFO level

Constructor Summary

Constructors

Constructor and Description
LoggingStateChangeListener() Log events to the static log for this class
LoggingStateChangeListener(org.slf4j.Logger log) Log events to the given log

Method Summary

Modifier and Type	Method and Description
void	stateChanged(Service service) Callback for a state change event: log it

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggingStateChangeListener

public LoggingStateChangeListener(org.slf4j.Logger log)

Log events to the given log

Parameters:

log - destination for events

LoggingStateChangeListener

public LoggingStateChangeListener()

Log events to the static log for this class

Method Detail

stateChanged

public void stateChanged(Service service)

Callback for a state change event: log it

Specified by:

stateChanged in interface ServiceStateChangeListener

Parameters:

service - the service that has changed.