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org.apache.oozie.service
Class InstrumentationService

java.lang.Object
  org.apache.oozie.service.InstrumentationService

All Implemented Interfaces:

Service

public class InstrumentationService
extends Object
implements Service

This service provides an Instrumentation instance configured to support samplers.

This service depends on the SchedulerService.

The CONF_LOGGING_INTERVAL configuration property indicates how often snapshots of the instrumentation should be logged.

Field Summary

static String	CONF_LOGGING_INTERVAL
static String	CONF_PREFIX

Fields inherited from interface org.apache.oozie.service.Service

DEFAULT_LOCK_TIMEOUT, lockTimeout, USE_XCOMMAND

Constructor Summary

InstrumentationService()

Method Summary

void	destroy() Destroy the instrumentation service.
Instrumentation	get() Return the instrumentation instance used by the service.
Class<? extends Service>	getInterface() Return the public interface for instrumentation service.
void	init(Services services) Initialize the instrumentation service.

Methods inherited from class java.lang.Object

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

Field Detail

CONF_PREFIX

public static final String CONF_PREFIX

See Also:

Constant Field Values

CONF_LOGGING_INTERVAL

public static final String CONF_LOGGING_INTERVAL

See Also:

Constant Field Values

Constructor Detail

InstrumentationService

public InstrumentationService()

Method Detail

init

public void init(Services services)
          throws ServiceException

Initialize the instrumentation service.

Specified by:

init in interface Service

Parameters:

services - services instance.

Throws:

ServiceException - thrown if the service could not initialize.

destroy

public void destroy()

Destroy the instrumentation service.

Specified by:

destroy in interface Service

getInterface

public Class<? extends Service> getInterface()

Return the public interface for instrumentation service.

Specified by:

getInterface in interface Service

Returns:

InstrumentationService.

get

public Instrumentation get()

Return the instrumentation instance used by the service.

Returns:

the instrumentation instance.