com.espertech.esper.epl.metric

Class MetricReportingServiceImpl

java.lang.Object

com.espertech.esper.epl.metric.MetricReportingServiceImpl

All Implemented Interfaces:

StatementLifecycleObserver, MetricEventRouter, MetricReportingService, MetricReportingServiceSPI

public class MetricReportingServiceImpl
extends Object
implements MetricReportingServiceSPI, MetricEventRouter, StatementLifecycleObserver

Metrics reporting.

Reports for all statements even if not in a statement group, i.e. statement in default group.

Constructor Summary

Constructors

Constructor and Description
MetricReportingServiceImpl(ConfigurationMetricsReporting specification, String engineUri) Ctor.

Method Summary

Modifier and Type	Method and Description
void	accountOutput(StatementMetricHandle handle, int numIStream, int numRStream) Account for statement output row counting.
void	accountTime(StatementMetricHandle metricsHandle, long deltaCPU, long deltaWall, int numInputEvents) Account for statement CPU and wall time.
void	addStatementResultListener(StatementResultListener listener) Add stmt result listener.
void	destroy() Destroy the service.
StatementMetricHandle	getStatementHandle(int statementId, String statementName) Returns for a new statement a handle for later accounting.
CopyOnWriteArraySet<StatementResultListener>	getStatementOutputHooks() Returns output hooks.
void	observe(StatementLifecycleEvent theEvent) Observer statement state changes.
void	processTimeEvent(long timeEventTime) Indicates current engine time.
void	removeStatementResultListener(StatementResultListener listener) Remove stmt result listener.
void	route(MetricEvent metricEvent) Process metric event.
void	setContext(EPRuntime runtime, EPServicesContext servicesContext) Sets runtime and services.
void	setMetricsReportingDisabled() Disables metrics reporting globally.
void	setMetricsReportingEnabled() Enables metrics reporting globally.
void	setMetricsReportingInterval(String stmtGroupName, long newInterval) Change the reporting interval for the given statement group name.
void	setMetricsReportingStmtDisabled(String statementName) Disable metrics reporting for statement.
void	setMetricsReportingStmtEnabled(String statementName) Enable metrics reporting for statement.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetricReportingServiceImpl

public MetricReportingServiceImpl(ConfigurationMetricsReporting specification,
                                  String engineUri)

Ctor.

Parameters:

specification - configuration

engineUri - engine URI

Method Detail

addStatementResultListener

public void addStatementResultListener(StatementResultListener listener)

Description copied from interface: MetricReportingServiceSPI

Add stmt result listener.

Specified by:

addStatementResultListener in interface MetricReportingServiceSPI

Parameters:

listener - to add

removeStatementResultListener

public void removeStatementResultListener(StatementResultListener listener)

Description copied from interface: MetricReportingServiceSPI

Remove stmt result listener.

Specified by:

removeStatementResultListener in interface MetricReportingServiceSPI

Parameters:

listener - to remove

getStatementOutputHooks

public CopyOnWriteArraySet<StatementResultListener> getStatementOutputHooks()

Description copied from interface: MetricReportingServiceSPI

Returns output hooks.

Specified by:

getStatementOutputHooks in interface MetricReportingServiceSPI

Returns:

hooks.

setContext

public void setContext(EPRuntime runtime,
                       EPServicesContext servicesContext)

Description copied from interface: MetricReportingService

Sets runtime and services.

Specified by:

setContext in interface MetricReportingService

Parameters:

runtime - runtime

servicesContext - services

processTimeEvent

public void processTimeEvent(long timeEventTime)

Description copied from interface: MetricReportingService

Indicates current engine time.

Specified by:

processTimeEvent in interface MetricReportingService

Parameters:

timeEventTime - engine time

destroy

public void destroy()

Description copied from interface: MetricReportingService

Destroy the service.

Specified by:

destroy in interface MetricReportingService

route

public void route(MetricEvent metricEvent)

Description copied from interface: MetricEventRouter

Process metric event.

Specified by:

route in interface MetricEventRouter

Parameters:

metricEvent - metric event to process

accountTime

public void accountTime(StatementMetricHandle metricsHandle,
                        long deltaCPU,
                        long deltaWall,
                        int numInputEvents)

Description copied from interface: MetricReportingService

Account for statement CPU and wall time.

Specified by:

accountTime in interface MetricReportingService

Parameters:

metricsHandle - statement handle

deltaCPU - cpu time nsec

deltaWall - wall time nsec

numInputEvents - number of input rows

accountOutput

public void accountOutput(StatementMetricHandle handle,
                          int numIStream,
                          int numRStream)

Description copied from interface: MetricReportingService

Account for statement output row counting.

Specified by:

accountOutput in interface MetricReportingService

Parameters:

handle - statement handle

numIStream - number of insert stream rows

numRStream - number of remove stream rows

getStatementHandle

public StatementMetricHandle getStatementHandle(int statementId,
                                                String statementName)

Description copied from interface: MetricReportingService

Returns for a new statement a handle for later accounting.

Specified by:

getStatementHandle in interface MetricReportingService

Parameters:

statementId - statement id

statementName - statement name

Returns:

handle

observe

public void observe(StatementLifecycleEvent theEvent)

Description copied from interface: StatementLifecycleObserver

Observer statement state changes.

Specified by:

observe in interface StatementLifecycleObserver

Parameters:

theEvent - indicates statement changed

setMetricsReportingInterval

public void setMetricsReportingInterval(String stmtGroupName,
                                        long newInterval)

Description copied from interface: MetricReportingService

Change the reporting interval for the given statement group name.

Specified by:

setMetricsReportingInterval in interface MetricReportingService

Parameters:

stmtGroupName - group name

newInterval - new interval, or zero or negative value to disable reporting

setMetricsReportingStmtDisabled

public void setMetricsReportingStmtDisabled(String statementName)
                                     throws ConfigurationException

Description copied from interface: MetricReportingService

Disable metrics reporting for statement.

Specified by:

setMetricsReportingStmtDisabled in interface MetricReportingService

Parameters:

statementName - statement name

Throws:

ConfigurationException

setMetricsReportingStmtEnabled

public void setMetricsReportingStmtEnabled(String statementName)
                                    throws ConfigurationException

Description copied from interface: MetricReportingService

Enable metrics reporting for statement.

Specified by:

setMetricsReportingStmtEnabled in interface MetricReportingService

Parameters:

statementName - statement name

Throws:

ConfigurationException

setMetricsReportingEnabled

public void setMetricsReportingEnabled()

Description copied from interface: MetricReportingService

Enables metrics reporting globally.

Specified by:

setMetricsReportingEnabled in interface MetricReportingService

setMetricsReportingDisabled

public void setMetricsReportingDisabled()

Description copied from interface: MetricReportingService

Disables metrics reporting globally.

Specified by:

setMetricsReportingDisabled in interface MetricReportingService