org.nuiton.profiling

Class Trace

java.lang.Object

org.nuiton.profiling.Trace

public class Trace
extends Object

Permet de tracer les appels aux methodes.

Author:

bpoussin : poussin@codelutin.com, tchemit : chemit@codelutin.com

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	Trace.Call Represente un call de methode
protected static class	Trace.StatAndStack

Field Summary

Fields

Modifier and Type	Field and Description
protected ConcurrentLinkedDeque<Trace.StatAndStack>	allStatAndStack
protected static ThreadLocal<Trace.StatAndStack>	callStacks array : [nest method call, start time, start time with child] On ne melange pas les stack entre les threads, sinon les resultats ne veulent plus rien dire car toutes les methodes des threads sont melangees
protected Map<Method,StatisticMethod>	commonStatistics statistic on method call
protected boolean	distinctThreadCall
protected Trace.StatAndStack	monoStatAndStack
protected boolean	multithread

Constructor Summary

Constructors

Constructor and Description
Trace() default usable in multi-thread context, all calls in all threads are stored in same place (no thread distinction)
Trace(boolean multithread, boolean distinctThreadCall) indique que l'on utilise Trace seulement avec un thread, cela evite d'utiliser en interne un ThreadLocal

Method Summary

Methods

Modifier and Type	Method and Description
void	clearStatistics() Clear all statistiques.
void	enter(Method method)
void	exit(Method method)
protected Map<Method,StatisticMethod>	getCommonStatistics()
Trace.StatAndStack	getMonoStatAndStack()
Trace.StatAndStack	getStack()
String	getStatisticsCSV()
String	getStatisticsJson()
String	getStatisticsText()
void	printStatisticsAndClear()
void	printStatisticsAndClear(PrintStream printer)

Methods inherited from class java.lang.Object

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

Field Detail

distinctThreadCall

protected boolean distinctThreadCall

multithread

protected boolean multithread

commonStatistics

protected Map<Method,StatisticMethod> commonStatistics

statistic on method call

monoStatAndStack

protected Trace.StatAndStack monoStatAndStack

allStatAndStack

protected ConcurrentLinkedDeque<Trace.StatAndStack> allStatAndStack

callStacks

protected static final ThreadLocal<Trace.StatAndStack> callStacks

array : [nest method call, start time, start time with child] On ne melange pas les stack entre les threads, sinon les resultats ne veulent plus rien dire car toutes les methodes des threads sont melangees

Constructor Detail

Trace

public Trace()

default usable in multi-thread context, all calls in all threads are stored in same place (no thread distinction)

Trace

public Trace(boolean multithread,
     boolean distinctThreadCall)

indique que l'on utilise Trace seulement avec un thread, cela evite d'utiliser en interne un ThreadLocal

Parameters:

multithread - si vrai indique que cette instance est utilise dans un context multithread. Dans ce cas il est possible d'indique la politique de collect des appels via le parametre distinctThreadCall

distinctThreadCall - si vrai indique que les appels des differents thread ne doivent pas etre melange. Si deux thread appel la meme methode cette methode se trouvera dans des statistiques differentes pour chacun des threads

Method Detail

getMonoStatAndStack

public Trace.StatAndStack getMonoStatAndStack()

getCommonStatistics

protected Map<Method,StatisticMethod> getCommonStatistics()

getStack

public Trace.StatAndStack getStack()

enter

public void enter(Method method)

exit

public void exit(Method method)

getStatisticsCSV

public String getStatisticsCSV()

Returns:

les statistiques in CSV format

getStatisticsJson

public String getStatisticsJson()

Returns:

les statistiques in json format

Since:

2.7

clearStatistics

public void clearStatistics()

Clear all statistiques.

Since:

2.7

getStatisticsText

public String getStatisticsText()

Returns:

les statistiques

printStatisticsAndClear

public void printStatisticsAndClear()

printStatisticsAndClear

public void printStatisticsAndClear(PrintStream printer)