org.rhq.plugins.hadoop

Class HadoopServerComponent

java.lang.Object

org.rhq.plugins.jmx.JMXServerComponent<ResourceComponent<?>>

org.rhq.plugins.hadoop.HadoopServerComponent

All Implemented Interfaces:

AvailabilityFacet, ConfigurationFacet, ResourceComponent<ResourceComponent<?>>, MeasurementFacet, OperationFacet, JMXComponent<ResourceComponent<?>>

Direct Known Subclasses:

JobTrackerServerComponent

public class HadoopServerComponent
extends JMXServerComponent<ResourceComponent<?>>
implements JMXComponent<ResourceComponent<?>>, MeasurementFacet, OperationFacet, ConfigurationFacet

Field Summary

Fields

Modifier and Type	Field and Description
static String	LOG_EVENT_TYPE
static String	LOG_POLLING_INTERVAL_PROPERTY

Fields inherited from interface org.rhq.plugins.jmx.JMXComponent

CREDENTIALS_CONFIG_PROP, PRINCIPAL_CONFIG_PROP

Constructor Summary

Constructors

Constructor and Description
HadoopServerComponent()

Method Summary

Methods

Modifier and Type	Method and Description
protected EventPoller	createNewEventPoller(EventContext eventContext, File logFile)
protected void	discardPoller()
org.rhq.core.domain.measurement.AvailabilityType	getAvailability() Return availability of this resource
org.mc4j.ems.connection.EmsConnection	getEmsConnection()
protected File	getHomeDir()
void	getValues(org.rhq.core.domain.measurement.MeasurementReport report, Set<org.rhq.core.domain.measurement.MeasurementScheduleRequest> metrics) Gather measurement data
protected void	handleMetric(org.rhq.core.domain.measurement.MeasurementReport report, org.rhq.core.domain.measurement.MeasurementScheduleRequest request)
OperationResult	invokeOperation(String name, org.rhq.core.domain.configuration.Configuration params) Invokes the passed operation on the managed resource
org.rhq.core.domain.configuration.Configuration	loadResourceConfiguration()
void	start(ResourceContext context)
void	stop()
void	updateResourceConfiguration(ConfigurationUpdateReport report)

Methods inherited from class org.rhq.plugins.jmx.JMXServerComponent

getResourceContext, internalStart

Methods inherited from class java.lang.Object

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

Field Detail

LOG_EVENT_TYPE

public static final String LOG_EVENT_TYPE

See Also:

Constant Field Values

LOG_POLLING_INTERVAL_PROPERTY

public static final String LOG_POLLING_INTERVAL_PROPERTY

See Also:

Constant Field Values

Constructor Detail

HadoopServerComponent

public HadoopServerComponent()

Method Detail

start

public void start(ResourceContext context)
           throws Exception

Specified by:

start in interface ResourceComponent<ResourceComponent<?>>

Overrides:

start in class JMXServerComponent<ResourceComponent<?>>

Throws:

Exception

stop

public void stop()

Specified by:

stop in interface ResourceComponent<ResourceComponent<?>>

Overrides:

stop in class JMXServerComponent<ResourceComponent<?>>

getAvailability

public org.rhq.core.domain.measurement.AvailabilityType getAvailability()

Return availability of this resource

Specified by:

getAvailability in interface AvailabilityFacet

Overrides:

getAvailability in class JMXServerComponent<ResourceComponent<?>>

See Also:

AvailabilityFacet.getAvailability()

getEmsConnection

public org.mc4j.ems.connection.EmsConnection getEmsConnection()

Specified by:

getEmsConnection in interface JMXComponent<ResourceComponent<?>>

Overrides:

getEmsConnection in class JMXServerComponent<ResourceComponent<?>>

getValues

public void getValues(org.rhq.core.domain.measurement.MeasurementReport report,
             Set<org.rhq.core.domain.measurement.MeasurementScheduleRequest> metrics)
               throws Exception

Gather measurement data

Specified by:

getValues in interface MeasurementFacet

Throws:

Exception

See Also:

MeasurementFacet.getValues(org.rhq.core.domain.measurement.MeasurementReport, java.util.Set)

handleMetric

protected void handleMetric(org.rhq.core.domain.measurement.MeasurementReport report,
                org.rhq.core.domain.measurement.MeasurementScheduleRequest request)
                     throws Exception

Throws:

Exception

loadResourceConfiguration

public org.rhq.core.domain.configuration.Configuration loadResourceConfiguration()
                                                                          throws Exception

Specified by:

loadResourceConfiguration in interface ConfigurationFacet

Throws:

Exception

updateResourceConfiguration

public void updateResourceConfiguration(ConfigurationUpdateReport report)

Specified by:

updateResourceConfiguration in interface ConfigurationFacet

invokeOperation

public OperationResult invokeOperation(String name,
                              org.rhq.core.domain.configuration.Configuration params)
                                throws Exception

Invokes the passed operation on the managed resource

Specified by:

invokeOperation in interface OperationFacet

Parameters:

name - Name of the operation

params - The method parameters

Returns:

An operation result

Throws:

Exception

See Also:

OperationFacet

createNewEventPoller

protected EventPoller createNewEventPoller(EventContext eventContext,
                               File logFile)

discardPoller

protected void discardPoller()

getHomeDir

protected File getHomeDir()