com.goldencode.p2j.jmx

Class SimpleLongCounter

java.lang.Object

com.goldencode.p2j.jmx.Facultative

com.goldencode.p2j.jmx.SimpleLongCounter

All Implemented Interfaces:

AgentRegistry<BooleanConsumer>, FacultativeMBean, LongCounter, SimpleLongCounterMBean

Direct Known Subclasses:

SimpleMapCounter

public class SimpleLongCounter
extends Facultative
implements SimpleLongCounterMBean, LongCounter

MBean supporting counting

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.concurrent.atomic.AtomicLong	count Total number of calls
private java.util.concurrent.atomic.AtomicLong	total Total sum of samples

Constructor Summary

Constructors

Constructor and Description
SimpleLongCounter()

Method Summary

Modifier and Type	Method and Description
long	getCount() Get number of calls
long	getTotal() Get sum of samples
void	print(java.lang.String file) Print counters' values to the file
void	print(java.lang.String comment, java.lang.String file) Print counters' values to the file
void	reset() Reset counters
java.lang.String	toString(java.lang.String ts, java.lang.String comment) Return the string representation of the counter
void	update(long value) Update counter

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

enable, getAnnotation, isEnabled, register, setAnnotation

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.goldencode.p2j.jmx.FacultativeMBean

enable, getAnnotation, isEnabled, setAnnotation

Methods inherited from interface com.goldencode.p2j.jmx.LongCounter

dump

Field Detail

total

private final java.util.concurrent.atomic.AtomicLong total

Total sum of samples

count

private final java.util.concurrent.atomic.AtomicLong count

Total number of calls

Constructor Detail

SimpleLongCounter

public SimpleLongCounter()

Method Detail

reset

public void reset()

Reset counters

Specified by:

reset in interface SimpleLongCounterMBean

getTotal

public long getTotal()

Get sum of samples

Specified by:

getTotal in interface SimpleLongCounterMBean

Returns:

sum of samples

getCount

public long getCount()

Get number of calls

Specified by:

getCount in interface SimpleLongCounterMBean

Returns:

number of calls

update

public void update(long value)

Description copied from interface: LongCounter

Update counter

Specified by:

update in interface LongCounter

Parameters:

value - new value

See Also:

LongCounter.update(long)

print

public void print(java.lang.String file)
           throws java.io.IOException

Print counters' values to the file

Specified by:

print in interface SimpleLongCounterMBean

Parameters:

file - output file name (will be appended if exists)

Throws:

java.io.IOException - on I/O error

print

public void print(java.lang.String comment,
                  java.lang.String file)
           throws java.io.IOException

Print counters' values to the file

Parameters:

comment - comment

file - output file name (will be appended if exists)

Throws:

java.io.IOException - on I/O error

toString

public java.lang.String toString(java.lang.String ts,
                                 java.lang.String comment)
                          throws java.io.IOException

Return the string representation of the counter

Specified by:

toString in interface LongCounter

Parameters:

ts - timestamp string

comment - comment

Returns:

string representation of the counter

Throws:

java.io.IOException - on I/O error