de.gsi.dataset.utils

Class ProcessingProfiler

java.lang.Object

de.gsi.dataset.utils.ProcessingProfiler

public final class ProcessingProfiler
extends Object

Small utility class to measure ns-level processing delays

Author:

rstein

Field Summary

Fields

Modifier and Type	Field and Description
protected static boolean	debugState boolean flag controlling whether diagnostics time-marks are taken or the routine to be skipped
protected static boolean	loggerOutput boolean flag controlling whether the statistics/time differences are output to the logger/console or not
protected static boolean	verboseOutput boolean flag controlling whether the statistics/time differences are output to the logger/console or not

Method Summary

Modifier and Type	Method and Description
static String	getCallingClassMethod(int recursionDepth)
protected static String	getCallingClassMethod(String msg)
static boolean	getDebugState()
static boolean	getLoggerOutputState()
static long	getTimeDiff(long lastStamp)
static long	getTimeDiff(long lastStamp, String msg)
static long	getTimeStamp() Returns the current value of the running Java Virtual Machine's high-resolution time source, in nanoseconds.
static boolean	getVerboseOutputState()
static void	setDebugState(boolean state) boolean flag controlling whether diagnostics time-marks are taken or the routine to be skipped
static void	setLoggerOutputState(boolean state) boolean flag controlling whether the statistics/time differences are output to the logger/console or not
static void	setVerboseOutputState(boolean state) boolean flag controlling whether the statistics/time differences are output to the logger/console or not

Methods inherited from class java.lang.Object

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

Field Detail

debugState

protected static boolean debugState

boolean flag controlling whether diagnostics time-marks are taken or the routine to be skipped

verboseOutput

protected static boolean verboseOutput

boolean flag controlling whether the statistics/time differences are output to the logger/console or not

loggerOutput

protected static boolean loggerOutput

boolean flag controlling whether the statistics/time differences are output to the logger/console or not

Method Detail

setDebugState

public static void setDebugState(boolean state)

boolean flag controlling whether diagnostics time-marks are taken or the routine to be skipped

Parameters:

state - true: enable

getDebugState

public static boolean getDebugState()

Returns:

boolean flag controlling whether diagnostics time-marks are taken or the routine to be skipped

setVerboseOutputState

public static void setVerboseOutputState(boolean state)

boolean flag controlling whether the statistics/time differences are output to the logger/console or not

Parameters:

state - true: enable

getVerboseOutputState

public static boolean getVerboseOutputState()

Returns:

boolean flag controlling whether the statistics/time differences are output to the logger/console or not

setLoggerOutputState

public static void setLoggerOutputState(boolean state)

boolean flag controlling whether the statistics/time differences are output to the logger/console or not

Parameters:

state - true: enable

getLoggerOutputState

public static boolean getLoggerOutputState()

Returns:

boolean flag controlling whether the statistics/time differences are output to the logger/console or not

getTimeStamp

public static long getTimeStamp()

Returns the current value of the running Java Virtual Machine's high-resolution time source, in nanoseconds.

This method can only be used to measure elapsed time and is not related to any other notion of system or wall-clock time. The value returned represents nanoseconds since some fixed but arbitrary origin time.

the overhead of taking the time stamp is disabled via #debugProperty()

Returns:

nanoSecond resolution time stam

getTimeDiff

public static long getTimeDiff(long lastStamp)

Parameters:

lastStamp - reference time stamp

Returns:

actual delay

getCallingClassMethod

public static String getCallingClassMethod(int recursionDepth)

Parameters:

recursionDepth - 0 being the calling function

Returns:

the 'class::function(line:xxx)' string

getCallingClassMethod

protected static String getCallingClassMethod(String msg)

getTimeDiff

public static long getTimeDiff(long lastStamp,
                               String msg)

Parameters:

lastStamp - reference time stamp

msg - custom string message that should be printed alongside the time stamp

Returns:

actual delay