org.javasimon.utils

Class SystemDebugCallback

java.lang.Object

org.javasimon.callback.CallbackSkeleton

org.javasimon.utils.SystemDebugCallback

All Implemented Interfaces:

Callback

public final class SystemDebugCallback
extends CallbackSkeleton

SystemDebugCallback just prints operations on the standard output, warning is sent to error output.

Author:

Richard "Virgo" Richter

Nested Class Summary

Nested classes/interfaces inherited from interface org.javasimon.callback.Callback

Callback.Event

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEBUG_PREFIX

Constructor Summary

Constructors

Constructor and Description
SystemDebugCallback()

Method Summary

Methods

Modifier and Type	Method and Description
void	onCounterDecrease(Counter counter, long dec, CounterSample sample) Counter decrease event.
void	onCounterIncrease(Counter counter, long inc, CounterSample sample) Counter increase event.
void	onCounterSet(Counter counter, long val, CounterSample sample) Counter set event.
void	onManagerClear() Event called when the manager is cleared.
void	onManagerMessage(String message) Message event is used to propagate arbitrary messages from the manager, or it can be used by the other Callback methods internally.
void	onManagerWarning(String warning, Exception cause) Warning and stack trace are print out to the error output.
void	onSimonCreated(Simon simon) Simon created event is called when Simon is successfully created by the Manager.
void	onSimonDestroyed(Simon simon) Simon destroyed event is called when Simon is successfully destroyed by the Manager.
void	onStopwatchAdd(Stopwatch stopwatch, Split split, StopwatchSample sample) Stopwatch add split event.
void	onStopwatchStart(Split split) Stopwatch start event.
void	onStopwatchStop(Split split, StopwatchSample sample) Stopwatch stop event.

Methods inherited from class org.javasimon.callback.CallbackSkeleton

cleanup, initialize

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG_PREFIX

public static final String DEBUG_PREFIX

See Also:

Constant Field Values

Constructor Detail

SystemDebugCallback

public SystemDebugCallback()

Method Detail

onStopwatchStart

public void onStopwatchStart(Split split)

Description copied from interface: Callback

Stopwatch start event. Duration of all callbacks is included into the split time! StopwatchSample valid for the moment after the start is provided because the callback is executed out of synchronized block. It is guaranteed that Split.getStopwatch() will not return null.

Specified by:

onStopwatchStart in interface Callback

Overrides:

onStopwatchStart in class CallbackSkeleton

Parameters:

split - started Split

onStopwatchStop

public void onStopwatchStop(Split split,
                   StopwatchSample sample)

Description copied from interface: Callback

Stopwatch stop event. This action is executed after the split time is calculated and does not affect the measuring. StopwatchSample valid for the moment after the stop is provided because the callback is executed out of synchronized block. It is guaranteed that Split.getStopwatch() will not return null.

Specified by:

onStopwatchStop in interface Callback

Overrides:

onStopwatchStop in class CallbackSkeleton

Parameters:

split - stopped Split

sample - stopwatch sampled after the stop

onStopwatchAdd

public void onStopwatchAdd(Stopwatch stopwatch,
                  Split split,
                  StopwatchSample sample)

Description copied from interface: Callback

Stopwatch add split event. StopwatchSample valid for the moment after the add is provided because the callback is executed out of synchronized block. It is guaranteed that Split.getStopwatch() will not return null.

Specified by:

onStopwatchAdd in interface Callback

Overrides:

onStopwatchAdd in class CallbackSkeleton

Parameters:

stopwatch - modified Stopwatch

split - added split object

sample - stopwatch sampled after the add

onCounterDecrease

public void onCounterDecrease(Counter counter,
                     long dec,
                     CounterSample sample)

Description copied from interface: Callback

Counter decrease event. CounterSample valid for the moment after the operation is provided because the callback is executed out of synchronized block.

Specified by:

onCounterDecrease in interface Callback

Overrides:

onCounterDecrease in class CallbackSkeleton

Parameters:

counter - modified Counter

dec - decrement amount

sample - counter sampled after the operation

onCounterIncrease

public void onCounterIncrease(Counter counter,
                     long inc,
                     CounterSample sample)

Description copied from interface: Callback

Counter increase event. CounterSample valid for the moment after the operation is provided because the callback is executed out of synchronized block.

Specified by:

onCounterIncrease in interface Callback

Overrides:

onCounterIncrease in class CallbackSkeleton

Parameters:

counter - modified Counter

inc - increment amount

sample - counter sampled after the operation

onCounterSet

public void onCounterSet(Counter counter,
                long val,
                CounterSample sample)

Description copied from interface: Callback

Counter set event. CounterSample valid for the moment after the operation is provided because the callback is executed out of synchronized block.

Specified by:

onCounterSet in interface Callback

Overrides:

onCounterSet in class CallbackSkeleton

Parameters:

counter - modified Counter

val - new value

sample - counter sampled after the operation

onSimonCreated

public void onSimonCreated(Simon simon)

Description copied from interface: Callback

Simon created event is called when Simon is successfully created by the Manager. Runs within the block synchronized on the Manager - this results in high consistency, but it also means that implementations of this method should not take much time.

Specified by:

onSimonCreated in interface Callback

Overrides:

onSimonCreated in class CallbackSkeleton

Parameters:

simon - created Simon

onSimonDestroyed

public void onSimonDestroyed(Simon simon)

Description copied from interface: Callback

Simon destroyed event is called when Simon is successfully destroyed by the Manager. Runs within the block synchronized on the Manager - this results in high consistency, but it also means that implementations of this method should not take much time.

Specified by:

onSimonDestroyed in interface Callback

Overrides:

onSimonDestroyed in class CallbackSkeleton

Parameters:

simon - destroyed Simon

onManagerClear

public void onManagerClear()

Description copied from interface: Callback

Event called when the manager is cleared. Runs within the block synchronized on the Manager - this results in high consistency, but it also means that implementations of this method should not take much time.

Specified by:

onManagerClear in interface Callback

Overrides:

onManagerClear in class CallbackSkeleton

onManagerMessage

public void onManagerMessage(String message)

Description copied from interface: Callback

Message event is used to propagate arbitrary messages from the manager, or it can be used by the other Callback methods internally.

Specified by:

onManagerMessage in interface Callback

Overrides:

onManagerMessage in class CallbackSkeleton

Parameters:

message - message text

onManagerWarning

public void onManagerWarning(String warning,
                    Exception cause)

Warning and stack trace are print out to the error output. Either cause or warning (or both) should be provided otherwise the method does nothing.

Warning event containing warning and/or cause.

Specified by:

onManagerWarning in interface Callback

Overrides:

onManagerWarning in class CallbackSkeleton

Parameters:

warning - arbitrary warning message - can be null, unless concrete implementation states otherwise

cause - exception causing this warning - can be null, unless concrete implementation states otherwise