Package org.opendaylight.openflowjava.statistics

Class StatisticsCounters

java.lang.Object

org.opendaylight.openflowjava.statistics.StatisticsCounters

All Implemented Interfaces:

StatisticsHandler

public final class StatisticsCounters
extends Object
implements StatisticsHandler

Singleton class to hold and process counters.

Author:

madamjak

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_LOG_REPORT_PERIOD	Default delay between two writings into log (milliseconds).
static final int	MINIMAL_LOG_REPORT_PERIOD	Minimal delay between two writings into log (milliseconds).

Method Summary

Modifier and Type	Method	Description
Counter	getCounter(CounterEventTypes counterEventKey)	Get counter by CounterEventType.
protected Map<CounterEventTypes,Counter>	getCountersMap()	Returns the countersMap.
protected CounterEventTypes[]	getEnabledCounters()	Returns the enabled counters.
static StatisticsCounters	getInstance()	Get instance of statistics counters, first created object does not start counting and log reporting.
int	getLogReportPeriod()	Returns the current delay between two writings into logs.
void	incrementCounter(CounterEventTypes counterEventKey)	Increment value of given counter.
boolean	isCounterEnabled(CounterEventTypes counterEventKey)	Determines if the given counter is enabled.
boolean	isRunCounting()	Give an information if counting is running.
boolean	isRunLogReport()	Give an information if log reporter is running (statistics are write into logs).
String	printStatistics()	Returns statistics.
void	resetCounters()	Resets all counters.
void	startCounting(boolean reportToLogs, int logReportDelay)	Start counting (counters are set to 0 before counting starts).
void	startLogReport(int logReportDelay)	Prints statistics with given delay between logs.
void	stopCounting()	Stop counting, values in counters are untouched, log reporter is stopped.
void	stopLogReport()	Stops logging, counting continues.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_LOG_REPORT_PERIOD

public static final int DEFAULT_LOG_REPORT_PERIOD

Default delay between two writings into log (milliseconds).

See Also:

• Constant Field Values

MINIMAL_LOG_REPORT_PERIOD

public static final int MINIMAL_LOG_REPORT_PERIOD

Minimal delay between two writings into log (milliseconds).

See Also:

• Constant Field Values

Method Details

getInstance

public static StatisticsCounters getInstance()

Get instance of statistics counters, first created object does not start counting and log reporting.

Returns:

an instance

startCounting

public void startCounting(boolean reportToLogs,
 int logReportDelay)

Start counting (counters are set to 0 before counting starts).

Parameters:

reportToLogs - - true = statistic counters will periodically log

logReportDelay - - delay between two logs (in milliseconds)

stopCounting

public void stopCounting()

Stop counting, values in counters are untouched, log reporter is stopped.

isRunCounting

public boolean isRunCounting()

Give an information if counting is running.

Returns:

true, if counting is running, otherwise false

startLogReport

public void startLogReport(int logReportDelay)

Prints statistics with given delay between logs.

Parameters:

logReportDelay - - delay between two logs (in milliseconds)

Throws:

IllegalArgumentException - if logReportDelay is less than 0

stopLogReport

public void stopLogReport()

Stops logging, counting continues.

isRunLogReport

public boolean isRunLogReport()

Give an information if log reporter is running (statistics are write into logs).

Returns:

true if log reporter writes statistics into log, otherwise false

getLogReportPeriod

public int getLogReportPeriod()

Returns the current delay between two writings into logs.

getEnabledCounters

protected CounterEventTypes[] getEnabledCounters()

Returns the enabled counters.

getCountersMap

protected Map<CounterEventTypes,Counter> getCountersMap()

Returns the countersMap.

isCounterEnabled

public boolean isCounterEnabled(CounterEventTypes counterEventKey)

Determines if the given counter is enabled.

Parameters:

counterEventKey - the counter key

Returns:

true if counter has been Enabled, otherwise false

getCounter

public Counter getCounter(CounterEventTypes counterEventKey)

Get counter by CounterEventType.

Parameters:

counterEventKey - key to identify counter (can not be null)

Returns:

Counter object or null if counter has not been enabled

Throws:

IllegalArgumentException - if counterEventKey is null

incrementCounter

public void incrementCounter(CounterEventTypes counterEventKey)

Increment value of given counter.

Parameters:

counterEventKey - key to identify counter

resetCounters

public void resetCounters()

Description copied from interface: StatisticsHandler

Resets all counters.

Specified by:

resetCounters in interface StatisticsHandler

printStatistics

public String printStatistics()

Description copied from interface: StatisticsHandler

Returns statistics.

Specified by:

printStatistics in interface StatisticsHandler