com.goldencode.p2j.jmx

Class NanoTimer

java.lang.Object

com.goldencode.p2j.jmx.AbstractCounter

com.goldencode.p2j.jmx.SimpleCounter

com.goldencode.p2j.jmx.NanoTimer

Direct Known Subclasses:

ThreadsCpuTimer

public class NanoTimer
extends SimpleCounter

Helper class for measuring time intervals

Field Summary

Fields

Modifier and Type	Field and Description
private long	start start of the operation

Fields inherited from class com.goldencode.p2j.jmx.SimpleCounter

publish

Fields inherited from class com.goldencode.p2j.jmx.AbstractCounter

enabled, enabler

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	NanoTimer(java.util.function.LongConsumer publish) Constructor

Method Summary

Modifier and Type	Method and Description
static NanoTimer	getInstance(FwdServerJMX.TimeStat counter) Create and register instance
void	start() Start operation
void	stop() Stop operation and update counter
void	timer(Operation r) Execute operation and measure execution time
<T> T	timerWithReturn(ReturningOperation<T> r) Execute operation and measure execution time

Methods inherited from class com.goldencode.p2j.jmx.SimpleCounter

getInstance, update

Methods inherited from class com.goldencode.p2j.jmx.AbstractCounter

getEnabler, isEnabled, setEnabled, setEnabler

Methods inherited from class java.lang.Object

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

Field Detail

start

private long start

start of the operation

Constructor Detail

NanoTimer

protected NanoTimer(java.util.function.LongConsumer publish)

Constructor

Parameters:

publish - samples' consumer

Method Detail

getInstance

public static NanoTimer getInstance(FwdServerJMX.TimeStat counter)

Create and register instance

Parameters:

counter - Counter MBean

Returns:

new NanoTimer instance

start

public void start()

Start operation

stop

public void stop()

Stop operation and update counter

timer

public void timer(Operation r)

Execute operation and measure execution time

Parameters:

r - operation to be executed

timerWithReturn

public <T> T timerWithReturn(ReturningOperation<T> r)

Execute operation and measure execution time

Type Parameters:

T - The type of the return value for the operation to be executed.

Parameters:

r - operation to be executed

Returns:

The result of the operation to be executed