Package org.terracotta.statistics

Class GeneralOperationStatistic<T extends java.lang.Enum<T>>

java.lang.Object

org.terracotta.statistics.AbstractSourceStatistic<ChainedOperationObserver<? super T>>

org.terracotta.statistics.AbstractOperationStatistic<T>

org.terracotta.statistics.GeneralOperationStatistic<T>

Type Parameters:

T - the operation result enum type

All Implemented Interfaces:

OperationObserver<T>, OperationStatistic<T>, SourceStatistic<ChainedOperationObserver<? super T>>

class GeneralOperationStatistic<T extends java.lang.Enum<T>>
extends AbstractOperationStatistic<T>
implements OperationStatistic<T>

An operation observer that tracks operation result counts and can drive further derived statistics.

AbstractOperationStatistic.begin() and end(Enum) must be called from the same thread so that latency can be computed.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.concurrent.atomic.LongAdder[]	counts

Fields inherited from class org.terracotta.statistics.AbstractOperationStatistic

name, properties, tags, type

Fields inherited from class org.terracotta.statistics.AbstractSourceStatistic

derivedStatistics

Constructor Summary

Constructors

Constructor	Description
GeneralOperationStatistic(java.lang.String name, java.util.Set<java.lang.String> tags, java.util.Map<java.lang.String,? extends java.lang.Object> properties, java.lang.Class<T> type)	Create an operation statistics for a given operation result type.

Method Summary

Modifier and Type	Method	Description
long	count(T type)	Return the count of operations with the given type.
void	end(T result)	Called immediately after the operation completes with no interesting parameters, and with the same thread the called {OperationObserver.begin()} before.
long	sum(java.util.Set<T> types)
java.lang.String	toString()

Methods inherited from class org.terracotta.statistics.AbstractOperationStatistic

begin, sum, type

Methods inherited from class org.terracotta.statistics.AbstractSourceStatistic

addDerivedStatistic, getDerivedStatistics, removeDerivedStatistic

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.terracotta.statistics.observer.OperationObserver

begin

Methods inherited from interface org.terracotta.statistics.OperationStatistic

statistic, statistic, sum, type

Methods inherited from interface org.terracotta.statistics.SourceStatistic

addDerivedStatistic, getDerivedStatistics, removeDerivedStatistic

Field Detail

counts

private final java.util.concurrent.atomic.LongAdder[] counts

Constructor Detail

GeneralOperationStatistic

GeneralOperationStatistic(java.lang.String name,
                          java.util.Set<java.lang.String> tags,
                          java.util.Map<java.lang.String,? extends java.lang.Object> properties,
                          java.lang.Class<T> type)

Create an operation statistics for a given operation result type.

Parameters:

properties - a set of context properties

type - operation result type

Method Detail

count

public long count(T type)

Return the count of operations with the given type.

Specified by:

count in interface OperationStatistic<T extends java.lang.Enum<T>>

Parameters:

type - the result type

Returns:

the operation count

sum

public long sum(java.util.Set<T> types)

Specified by:

sum in interface OperationStatistic<T extends java.lang.Enum<T>>

end

public void end(T result)

Description copied from interface: OperationObserver

Called immediately after the operation completes with no interesting parameters, and with the same thread the called {OperationObserver.begin()} before.

Specified by:

end in interface OperationObserver<T extends java.lang.Enum<T>>

Overrides:

end in class AbstractOperationStatistic<T extends java.lang.Enum<T>>

Parameters:

result - the operation result

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object