Class MemoryAnalyzer

java.lang.Object

java.lang.Thread

org.pushingpixels.radiance.theming.internal.utils.TrackableThread

org.pushingpixels.radiance.theming.internal.utils.MemoryAnalyzer

All Implemented Interfaces:

Runnable

public class MemoryAnalyzer
extends TrackableThread

Tracer for memory usage patterns of Radiance look-and-feel. The tracer is started when RadianceThemingCortex.GlobalScope.setTraceFilename(String) is called before setting Radiance of the look and feel. When activated, the tracer runs a thread that collects information on memory usage and appends it to the trace log file every X seconds. The X (delay) is specified in the constructor. This class is for internal use only.

Nested Class Summary

Nested classes/interfaces inherited from class Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
private long	delay	Sleep delay between trace log iterations.
private String	filename	Trace logfile name.
private static MemoryAnalyzer	instance	Singleton instance.
private static boolean	isStopRequest	If true, this tracer has received a request to stop.
private static SimpleDateFormat	sdf	Formatting object.
private static ArrayList<String>	usages	Usage strings collected during the sleep time.

Fields inherited from class Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MemoryAnalyzer(long delay, String filename)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
static void	commence(long delay, String filename)	Starts the memory tracing.
static void	enqueueUsage(String usage)	Adds usage string.
static ArrayList<String>	getUsages()	Returns all queued usages.
private static boolean	hasStopRequest()	Checks whether a request to stop tracing has been issued.
static boolean	isRunning()	Checks whether tracer is running.
void	requestStop()	Issues request to stop tracing.
void	run()

Methods inherited from class TrackableThread

requestStopAllThreads

Methods inherited from class Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class Object

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

Field Details

delay

private long delay

Sleep delay between trace log iterations.

filename

private String filename

Trace logfile name.

instance

private static MemoryAnalyzer instance

Singleton instance.

isStopRequest

private static boolean isStopRequest

If true, this tracer has received a request to stop.

usages

private static ArrayList<String> usages

Usage strings collected during the sleep time.

sdf

private static SimpleDateFormat sdf

Formatting object.

Constructor Details

MemoryAnalyzer

private MemoryAnalyzer(long delay,
 String filename)

Simple constructor.

Parameters:

delay - Sleep delay between trace log iterations.

filename - Trace logfile name.

Method Details

commence

public static void commence(long delay,
 String filename)

Starts the memory tracing.

Parameters:

delay - Sleep delay between trace log iterations.

filename - Trace logfile name.

requestStop

public void requestStop()

Issues request to stop tracing.

Specified by:

requestStop in class TrackableThread

hasStopRequest

private static boolean hasStopRequest()

Checks whether a request to stop tracing has been issued.

Returns:

true if a request to stop tracing has been issued, false otherwise.

isRunning

public static boolean isRunning()

Checks whether tracer is running.

Returns:

true if tracer is running, false otherwise.

enqueueUsage

public static void enqueueUsage(String usage)

Adds usage string.

Parameters:

usage - Usage string. Will be output to the trace file at next iteration of the tracer.

getUsages

public static ArrayList<String> getUsages()

Returns all queued usages.

Returns:

All queued usages.

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread