Your Help is Greatly Appriciated

hello,
I am trying to load a SWF file (photo album) into my Main
Flash Enviroment (index.swf). My photo album uses a wait function
to pause on each photo for a period of the time (2 Second) as it
flips thru the photos.
I have realised that when I remove the Wait Function
everything works fin but once the wait function is in place the
following is what happens.
The Main.SWF is loaded - This is my Main page (The Menu Page)
which is consist of some moving objects which come into rest and
create the main page (The Menu). when I start to scan thru the main
menu the entire loading page starts again.
The following is the web address and you are welcome to have
a look at it.
www.mo30ghi.com
try to clip on the arrow on the right and flip the menu and
you will see it happens after few times of fliping all of the
sudden.
Thank you in advance for your help.
Cheers,
Babak

Your wait function is continuing to run even when the user
clicks on the arrow. You need to write in a function to wait a
specified amount of time before calling the wait function and then
when the user clicks the arrow delete the function and call the
first wait function again.

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Report generated March 7, 2015 at 4:01:26 PM PST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
 iMac (24-inch, Early 2008) (Verified)
 iMac - model: iMac8,1
 1 2.8 GHz Intel Core 2 Duo CPU: 2-core
 2 GB RAM Upgradeable
 BANK 0/DIMM0
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 BANK 1/DIMM1
 1 GB DDR2 SDRAM 800 MHz ok
 Bluetooth: Old - Handoff/Airdrop2 not supported
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Video Information: ℹ️
 ATI Radeon HD 2600 Pro - VRAM: 256 MB
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 Apple, Inc. Keyboard Hub
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 Mac App Store and identified developers
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Need your help on performance issue please

Hello everyone!
I need your help to understand an effect I notice with a Thread class I built. I currently work on enhancement of my application Playlist Editor (see http://www.lightdev.com/page74.htm) and a new release will be available soon.
Among other extensions the new release will have a title filter function which is based on audio data that is recursively read from ID3 tags of files found in a given root directory. The data collection is done by a CollectionThread class which reads into a data model class AudioDataModel and the entire process works fine, no problem with that.
However, when my application is started for the first time the CollectionThread runs approximately 3 minutes to collect data from approximately 4300 audio files on an Intel Pentium M 1,4 GHz, 512 MB RAM, Windows XP SP2. When the application is shut down and started again, it takes only a few seconds to do the same task for all subsequent launches.
I already tried to start the application with java option -Xms40m to increase initial heap size. This increases performance in general but the effect is still the same, i.e. first run lasts significantly longer than subsequent runs.
I also tried to build a pool mechanism which creates many empty objects in the data model and then releases them to contain the actual data at is being read in but this did not lead to better performance.
It must have to do with how Java (or Windows?) allocates and caches memory. I wonder whether there is a way to pre-allocate memory or if there are any other ideas to improve performance so that the process always only takes seconds instead of minutes?
I attach the key classes to this message. Any help or ideas is much appreciated!
Thanks a lot a best regards
Ulrich
PS: You can use the news subscription service at
http://www.lightdev.com/dynTemplate.php4?id=80&dynPage=subscribe.php4 to be informed when the new release of Playlist Editor is available.
All classes posted here do not need debugging, they already have proven to run error free. The classes are only posted for information for the interested reader - no need to go through all the stuff in detail - only if it interests you.
My application calls class CollectionThread wich is a subclass of InfoThread. CollectionThread recursively goes through a directory and file structure and stores found ID3 tag information in instances of class ID3v11Tag which in turn gets stored in one instance of class AudioDataModel. All classes are shown below.
This is the mentioned CollectionThread
* Light Development Playlist Editor
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.app.playlisteditor.data;
import com.lightdev.lib.util.InfoThread;
import java.io.File;
* A class to collect audio data from a given storage location.
* 
* <code>CollectionThread</code> uses ID3 tag information to gain data.
* 
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software as well as any licensing notes
* inside this documentation
* @version 1, October 13, 2004
public class CollectionThread extends InfoThread {
 * constructor
 * @param model AudioDataModel the data model to collect data to
public CollectionThread(AudioDataModel model) {
 this.model = model;
 * constructor, creates a new empty AudioDataModel
public CollectionThread() {
 this(new AudioDataModel());
 * set the data model to collect data to
 * @param model AudioDataModel the model to collect data to
public void setModel(AudioDataModel model) {
 this.model = model;
 * get the data model associated to this thread
 * @return AudioDataModel the data model
public AudioDataModel getModel() {
 return model;
 * set the directory to collect data from
 * @param rootDir File the directory to collect data from
public void setRootDirectory(File rootDir) {
 this.rootDir = rootDir;
 * do te actual work of this thread, i.e. iterate through a given directory
 * structure and collect audio data
 * @return boolean true, if work is left
protected boolean work() {
 boolean workIsLeft = true;
 maxValue = -1;
 filesProcessed = 0;
 if(getStatus() < STATUS_HALT_PENDING) {
 countElements(rootDir.listFiles());
 if(getStatus() < STATUS_HALT_PENDING) {
 workIsLeft = collect(rootDir.listFiles());
 return workIsLeft;
 * count the elements in a given file array including its subdirectories
 * @param files File[]
private void countElements(File[] files) {
 int i = 0;
 while (i < files.length && getStatus() < STATUS_HALT_PENDING) {
 File file = files;
if (file.isDirectory()) {
countElements(file.listFiles());
i++;
maxValue++;
* recursively read data into model
* @param files File[] the file array representing the content of a given directory
private boolean collect(File[] files) {
int i = 0;
while(i < files.length && getStatus() < STATUS_HALT_PENDING) {
File file = files[i];
if(file.isDirectory()) {
collect(file.listFiles());
else if(file.getName().toLowerCase().endsWith("mp3")) {
try {
model.addTrack(file);
catch(Exception e) {
fireThreadException(e);
i++;
filesProcessed++;
fireThreadProgress(filesProcessed);
return (i<files.length);
/** the directory to collect data from */
private File rootDir;
/** the data model to collect data to */
private AudioDataModel model;
/** the number of files this thread processed so far while it is running */
private long filesProcessed = 0;
This is class InfoThread
* Light Development Java Library
* Copyright (C) 2003, 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.util;
import java.util.Vector;
import java.util.Enumeration;
* Abstract class <code>InfoThread</class> implements a status and listener concept.
* An <code>InfoThread</code> object actively informs all objects registered as listeners about
* status changes, progress and possible exceptions. This way the status of a running
* thread does not require a polling mechanism to be monitored.
* 
* <code>InfoThread</code> implements the following working scheme
* 
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public abstract class InfoThread extends Thread {
 * construct an <code>InfoThread</code> object
 * This class is meant to be used when a <code>Thread</code> object is needed that actively
 * informs other objects about its status</code>. It is a good idea therefore to register
 * one or more listeners with instances of this class before doing anything
 * else.
 * @see addInfoThreadListener
public InfoThread() {
 * set the amount of time this thread shall idle after it is through with one
 * work cycle and before a next work cycle is started. This influences the time
 * other threads have for their work.
 * @param millis long the number of milliseconds to idle after one work cycle
public void setIdleMillis(long millis) {
 idleMillis = millis;
 * Causes this thread to begin execution; the Java Virtual Machine calls the <code>run</code>
 * method of this thread. Calls method <code>prepareThread</code> before calling
 * <code>run</code>.
 * @see run
 * @see prepareThread
public synchronized void start() {
 setStatus(STATUS_INITIALIZING);
 prepareThread();
 setStatus(STATUS_READY);
 super.start();
 * call method <code>start</code> instead of this method.
 * calling this method directly will lead to an exception
 * @see start
public void run() {
 //System.out.println("InfoThread.run");
 if (status == STATUS_READY) {
 boolean workIsLeft = true;
 setStatus(STATUS_RUNNING);
 while (status < STATUS_STOP_PENDING && workIsLeft) {
 if (status < STATUS_HALT_PENDING) {
 workIsLeft = work();
 if(!workIsLeft) {
 setStatus(STATUS_WORK_COMPLETE);
 if (status == STATUS_HALT_PENDING) {
 setStatus(STATUS_HALTED);
 else if (status == STATUS_STOP_PENDING) {
 setStatus(STATUS_STOPPED);
 else {
 try {
 sleep(idleMillis);
 catch (InterruptedException e) {
 fireThreadException(e);
 else {
 // error: Thread is not ready to run
 setStatus(STATUS_THREAD_FINISHED);
 * stop this thread. This will terminate the thread irrevokably. Use method
 * <code>haltThread</code> to pause a thread with the possiblity to resume work later.
 * @see haltThread
public void stopThread() {
 switch (status) {
 case STATUS_RUNNING:
 setStatus(STATUS_STOP_PENDING);
 break;
 case STATUS_HALT_PENDING:
 // exception: the thread already is about to halt
 break;
 case STATUS_STOP_PENDING:
 // exception: the thread already is about to stop
 break;
 default:
 // exception: a thread can not be stopped, when it is not running
 break;
 * halt this thread, i.e. pause working allowing to resume later
 * @see resumeThread
public void haltThread() {
 switch (status) {
 case STATUS_RUNNING:
 setStatus(STATUS_STOP_PENDING);
 break;
 case STATUS_HALT_PENDING:
 // exception: the thread already is about to halt
 break;
 case STATUS_STOP_PENDING:
 // exception: the thread already is about to stop
 break;
 default:
 // exception: a thread can not be halted, when it is not running
 break;
 * resume this thread, i.e. resume previously halted work
 * @see haltThread
public void resumeThread() {
 if(status == STATUS_HALTED || status == STATUS_HALT_PENDING) {
 setStatus(STATUS_RUNNING);
 else {
 // exception: only halted threads or threads that are about to halt can be resumed
 * this is the method to prepare a thread to run. It is not implemented in this abstract
 * class. Subclasses of <code>InfoThread</code> can implement this method to do anything
 * that might be required to put their thread into STATUS_READY. This method is called
 * automatically by method <code>start</code>. When implementing this method, it should
 * call method <code>fireThreadException</code> accordingly.
 * @see start
 * @see fireThreadException
protected void prepareThread() {
 // does nothing in this abstract class but might be needed in subclasses
 * this is the main activity method of this object. It is not implemented in this abstract
 * class. Subclasses of <code>InfoThread</code> must implement this method to do something
 * meaningful. When implementing this method, it should call methods
 * <code>fireThreadProgress</code> and <code>fireThreadException</code> accordingly.
 * @return boolean true, if work is left, false if not
 * @see fireThreadProgress
 * @see fireTreadException
protected abstract boolean work();
 * add an <code>InfoTreadListener</code> to this instance of <code>InfoThread</code>
 * @param l InfoThreadListener the listener to add
 * @see removeInfoThreadListener
public void addInfoThreadListener(InfoThreadListener l) {
 listeners.add(l);
 * remove an <code>InfoTreadListener</code> from this instance of <code>InfoThread</code>
 * @param l InfoThreadListener the listener to remove
public void removeInfoThreadListener(InfoThreadListener l) {
 listeners.remove(l);
 * notify all <code>InfoThreadListener</code>s of a status change
 * @param fromStatus int the status tis thread had before the change
 * @param toStatus int the status this thread has now
protected void fireThreadStatusChanged(int fromStatus, int toStatus) {
 Enumeration e = listeners.elements();
 while(e.hasMoreElements()) {
 Object l = e.nextElement();
 if(l instanceof InfoThreadListener) {
 ((InfoThreadListener) l).threadStatusChanged(this, fromStatus, toStatus);
 * notify all <code>InfoThreadListener</code>s of an exception in this thread
 * @param ex Exception the exception that occurred
protected void fireThreadException(Exception ex) {
 Enumeration e = listeners.elements();
 while(e.hasMoreElements()) {
 Object l = e.nextElement();
 if(l instanceof InfoThreadListener) {
 ((InfoThreadListener) l).threadException(this, ex);
 * notify all <code>InfoThreadListener</code>s of the progress of this thread
 * @param progressValue long a value indicating the current thread progress
protected void fireThreadProgress(long progressValue) {
 Enumeration e = listeners.elements();
 while(e.hasMoreElements()) {
 Object l = e.nextElement();
 if(l instanceof InfoThreadListener) {
 ((InfoThreadListener) l).threadProgress(this, progressValue, maxValue);
 * set the status of this thread and notify all listeners
 * @param newStatus int the status this thread is to be changed to
private void setStatus(int newStatus) {
 //System.out.println("InfoThread.setStatus oldStatus=" + status + ", newStatus=" + newStatus);
 int fromStatus = status;
 status = newStatus;
 fireThreadStatusChanged(fromStatus, newStatus);
 * get the current status of this thread
 * @return int the status
public int getStatus() {
 return status;
 * cleanup before actual destruction.
public void destroy() {
 //System.out.println("InfoThread.destroy");
 cleanup();
 super.destroy();
 * cleanup all references this thread maintains
private void cleanup() {
 //System.out.println("InfoThread.cleanup");
 listeners.removeAllElements();
 listeners = null;
/* ----------------------- class fields start ------------------------ */
/** storage for the objects this thread notifies about status changes and progress */
private Vector listeners = new Vector();
/** indicator for the status of this thread */
private int status = STATUS_NONE;
/** maximum value for threadProgress */
protected long maxValue = -1;
/** the idle time inside one work cycle in milliseconds */
protected long idleMillis = 1;
/* ----------------------- class fields end -------------------------- */
/* ----------------------- constants start --------------------------- */
/** constant value indicating that no status has been set so far */
public static final int STATUS_NONE = 0;
/** constant value indicating that the thread is currently initializing */
public static final int STATUS_INITIALIZING = 1;
/** constant value indicating that the thread is ready to run */
public static final int STATUS_READY = 2;
/** constant value indicating that the thread is running */
public static final int STATUS_RUNNING = 3;
/** constant value indicating that the thread is about to halt */
public static final int STATUS_HALT_PENDING = 4;
/** constant value indicating that the thread is halted */
public static final int STATUS_HALTED = 5;
/** constant value indicating that the work of this thread is complete */
public static final int STATUS_WORK_COMPLETE = 6;
/** constant value indicating that the thread is about to stop */
public static final int STATUS_STOP_PENDING = 7;
/** constant value indicating that the thread is stopped */
public static final int STATUS_STOPPED = 8;
/** constant value indicating that the thread is finished */
public static final int STATUS_THREAD_FINISHED = 9;
/* ----------------------- constants end --------------------------- */
}this is the InfoThreadListener interface
* Light Development Java Library
* Copyright (C) 2003, 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.util;
* An interface classes interested to receive events from objects
* of class <code>InfoThread</code> need to implement.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public interface InfoThreadListener {
 * method to receive a status change notification from a thread
 * @param thread InfoThread the thread which status changed
 * @param fromStatus int the status which the thread had before the change
 * @param toStatus int the status which the thread has now
public void threadStatusChanged(InfoThread thread, int fromStatus, int toStatus);
 * method to receive a notification about the progress of a thread
 * @param thread InfoThread the thread which notified about its progress
 * @param progressValue long the value (e.g. 10 if 100 percent completed, 20 of 1 million files processed, etc.)
public void threadProgress(InfoThread thread, long progressValue, long maxValue);
 * method to receive a notifiaction about the fact that an exception occurred in a thread
 * @param thread InfoThread the thread for which an exception occurred
 * @param e Exception the exception that occurred
public void threadException(InfoThread thread, Exception e);
}This is class AudioFileDescriptor
* Light Development Java Library
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.audio;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.io.Serializable;
import java.text.DecimalFormat;
* This class models characteristics of an audio file such as the absolute path
* of the file, its tag contents (if any) and the play duration, etc.
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public class AudioFileDescriptor implements Serializable, Comparable {
public AudioFileDescriptor(String absolutePath) throws FileNotFoundException, IOException {
 load(absolutePath);
public boolean equals(Object o) {
 if(o != null && o instanceof AudioFileDescriptor) {
 return ((AudioFileDescriptor) o).getAbsolutePath().equalsIgnoreCase(this.getAbsolutePath());
 else {
 return false;
public void load(String absolutePath) throws FileNotFoundException, IOException {
 this.absolutePath = absolutePath;
 RandomAccessFile rf = new RandomAccessFile(absolutePath, "r");
 if(id3v11Tag == null) {
 id3v11Tag = new ID3v11Tag(rf, false);
 else {
 id3v11Tag.readTag(rf, rf.length() - 128);
 rf.close();
public String getAbsolutePath() {
 return absolutePath;
public ID3v11Tag getID3v11Tag() {
 return id3v11Tag;
public void setID3v11Tag(ID3v11Tag tag) {
 this.id3v11Tag = tag;
public String toString() {
 DecimalFormat df = new DecimalFormat("00");
 return id3v11Tag.getArtist() + ", " + id3v11Tag.getAlbum() + " - " +
 df.format(id3v11Tag.getTrackNumber()) + " " + id3v11Tag.getTitle();
 * Compares this object with the specified object for order.
 * @param o the Object to be compared.
 * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
 * or greater than the specified object.
 * @todo Implement this java.lang.Comparable method
public int compareTo(Object o) {
 return toString().compareTo(o.toString());
private String absolutePath;
private ID3v11Tag id3v11Tag;
private transient long duration = -1;
private transient int type = TYPE_UNKNOWN;
public static final transient int TYPE_UNKNOWN = 0;
public static final transient int TYPE_MP3 = 1;
}This is class ID3V11Tag into which the data is actually stored
* Light Development Java Library
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.audio;
import java.io.File;
import java.io.RandomAccessFile;
import java.io.IOException;
import java.io.Serializable;
import java.text.DecimalFormat;
* This class is a very simple implementation of an ID3v11Tag. It models an ID3 tag
* pretty much the same way as it is physically stored inside an audio file.
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public class ID3v11Tag implements Serializable, Comparable {
 * construct an ID3v11Tag and read tag content from a given file
 * This constructor can be used for cases where a RandomAccessFile has already
 * been opened and will be closed elsewhere
 * @param rf RandomAccessFile the open file to read from
 * @param isAtTagStartPos boolean true, if the file pointer is at the
 * position where the ID3 tag starts; when false, the pointer is positioned accordingly here
 * @throws IOException
public ID3v11Tag(RandomAccessFile rf, boolean isAtTagStartPos) throws IOException {
 if(isAtTagStartPos) {
 readTag(rf);
 else {
 readTag(rf, rf.length() - 128);
 * construct an ID3v11Tag and read tag content from a file at a given location
 * This constructor opens and closes the audio file for reading
 * @param absolutePath String the absolute path to the audio file to open
 * @throws IOException
public ID3v11Tag(String absolutePath) throws IOException {
 RandomAccessFile rf = new RandomAccessFile(absolutePath, "r");
 readTag(rf, rf.length() - 128);
 rf.close();
 * construct an ID3v11Tag and read tag content from a given file
 * This constructor opens and closes the audio file for reading
 * @param audioFile File the audio file to read from
 * @throws IOException
public ID3v11Tag(File audioFile) throws IOException {
 this(audioFile.getAbsolutePath());
 * get a string representation of this object
 * @return String
public String toString() {
 DecimalFormat df = new DecimalFormat("00");
 return getArtist() + ", " + getAlbum() + " - " + df.format(getTrackNumber()) + " " + getTitle();
 * position to file pointer and read the tag
 * @param rf RandomAccessFile the file to read from
 * @param jumpPos long the position to jump to (the tag start position)
 * @throws IOException
public void readTag(RandomAccessFile rf, long jumpPos) throws IOException {
 rf.seek(jumpPos);
 readTag(rf);
 * read the tag from a given file, assuming the file pointer to be at the tag start position
 * @param rf RandomAccessFile the file to read from
 * @throws IOException
public void readTag(RandomAccessFile rf) throws IOException {
 rf.read(tagBuf);
 if(tag.equalsIgnoreCase(new String(tagBuf))) {
 rf.read(title);
 rf.read(artist);
 rf.read(album);
 rf.read(year);
 rf.read(comment);
 rf.read(trackNo);
 rf.read(genre);
public String getTitle() {
 return new String(title).trim();
public String getArtist() {
 return new String(artist).trim();
public String getAlbum() {
 return new String(album).trim();
public String getYear() {
 return new String(year).trim();
public String getComment() {
 return new String(comment).trim();
public int getGenreId() {
 try {
 int id = new Byte(genre[0]).intValue();
 if(id < GENRE_ID_MIN || id > GENRE_ID_MAX) {
 return GENRE_ID_OTHER;
 else {
 return id;
 catch(Exception ex) {
 return GENRE_ID_OTHER;
public String getGenreName() {
 return genreNames[getGenreId()];
public int getTrackNumber() {
 try {
 return (int) trackNo[0];
 catch(Exception e) {
 return 0;
 * Compares this object with the specified object for order.
 * @param o the Object to be compared.
 * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
 *

Hi Franck,
thank you, mate. I did what you suggested (changed class attached) but that did not change the mentioned behaviour.
The first run is approximately 75 seconds with Java option -Xms40m and approx. double without, the second run and all subsequent runs are only 2-3 seconds each (!!!) even when terminating and re-starting the application between thread runs.
I'm pretty clueless about that, any more help on this anyone?
Thanks a lot and best regards
Ulrich
PS: BTW, I forgot to post the class that is filled with data by class CollectionThread, so here it is
* Light Development Playlist Editor
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.app.playlisteditor.data;
import java.io.File;
import com.lightdev.lib.audio.ID3v11Tag;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.IOException;
import java.io.Serializable;
import com.lightdev.lib.audio.AudioFileDescriptor;
import com.lightdev.lib.ui.SortListModel;
import java.util.Iterator;
* Storage model for audio data.
* 
* <code>AudioDataModel</code> can be used to store ID3 tag data collected from
* a directory with audio files to perform queries and reports on the found data.
* 
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software as well as any licensing notes
* inside this documentation
* @version 1, October 15, 2004
public class AudioDataModel extends SortListModel implements Serializable {
 * constructor
public AudioDataModel() {
 * add an audio track from a given audio file
 * This will attempt to read ID3 tag data from the file.
 * @param audioFile File the file to add audio data for
 * @throws IOException
public void addTrack(File audioFile) throws IOException {
 AudioFileDescriptor afd = new AudioFileDescriptor(audioFile.getAbsolutePath());
 if (!data.contains(afd)) {
 data.add(afd);
 * get all tracks for agiven combination of genre name, artist name and album name. Any of
 * the parameters may be null or AudioDataModel.FILTER_ALL
 * Ugly code, I know, but it simply hard codes all combinations of the the mentioned
 * parameters. Any more elegant implementations welcome.
 * @param genreName String a genre name to get tracks for
 * @param artistName String an artist name to get tracks for
 * @param albumName String an album name to get tracks for
 * @return SortListModel the found tracks in a list model
public SortListModel getTracks(String genreName, String artistName, String albumName) {
 SortListModel foundTracks = new SortListModel();
 Iterator e = data.iterator();
 while(e.hasNext()) {
 AudioFileDescriptor afd = (AudioFileDescriptor) e.next();
 ID3v11Tag tag = afd.getID3v11Tag();
 if(genreName == null || genreName.equalsIgnoreCase(FILTER_ALL)) {
 if(artistName == null || artistName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 else {
 if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getArtist().equalsIgnoreCase(artistName))
 foundTracks.add(afd);
 else {
 if (tag.getArtist().equalsIgnoreCase(artistName) &&
 tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 else {
 if(artistName == null || artistName.equalsIgnoreCase(FILTER_ALL)) {
 if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getGenreName().equalsIgnoreCase(genreName))
 foundTracks.add(afd);
 else {
 if (tag.getGenreName().equalsIgnoreCase(genreName) &&
 tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 else {
 if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getGenreName().equalsIgnoreCase(genreName) &&
 tag.getArtist().equalsIgnoreCase(artistName))
 foundTracks.add(afd);
 else {
 if (tag.getGenreName().equalsIgnoreCase(genreName) &&
 tag.getArtist().equalsIgnoreCase(artistName) &&
 tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 foundTracks.sort();
 return foundTracks;
 * list all artists in this model
 * @return SortListModel
public SortListModel listArtists() {
 SortListModel artists = new SortListModel();
 artists.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String artistName = tag.getArtist();
 if (artists.indexOf(artistName) < 0) {
 artists.add(artistName);
 artists.sort();
 return artists;
 * list all artists in this model having titles belonging to a given genre
 * @param genreName String name of the genre artists are searched for
 * @return SortListModel
public SortListModel listArtists(String genreName) {
 SortListModel artists = new SortListModel();
 artists.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String artistName = tag.getArtist();
 String genre = tag.getGenreName();
 if (artists.indexOf(artistName) < 0 && genre.equalsIgnoreCase(genreName)) {
 artists.add(artistName);
 artists.sort();
 return artists;
 * list all genres in this model
 * @return SortListModel
public SortListModel listGenres() {
 SortListModel genres = new SortListModel();
 genres.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String genreName = tag.getGenreName();
 if (genres.indexOf(genreName) < 0) {
 genres.add(genreName);
 genres.sort();
 return genres;
 * list all albums in this model
 * @return SortListModel
public SortListModel listAlbums() {
 SortListModel albums = new SortListModel();
 albums.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String albumName = tag.getAlbum();
 if (albums.indexOf(albumName) < 0) {
 albums.add(albumName);
 albums.sort();
 return albums;
 * list all albums in this model having titles belonging to a given genre
 * @param genreName String name of the genre albums are searched for
 * @return SortListModel
public SortListModel listAlbums(String genreName) {
 SortListModel albums = new SortListModel();
 albums.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String albumName = tag.getAlbum();
 String genre = tag.getGenreName();
 if (albums.indexOf(albumName) < 0 && genre.equalsIgnoreCase(genreName)) {
 albums.add(albumName);
 albums.sort();
 return albums;
 * list all albums in this model having titles belonging to a given genre and artist
 * @param genreName String name of the genre albums are searched for
 * @param artistName String name of the artist albums are searched for
 * @return SortListModel
public SortListModel listAlbums(String genreName, String artistName) {
 SortListModel albums = new SortListModel();
 albums.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String albumName = tag.getAlbum();
 String genre = tag.getGenreName();
 String artist = tag.getArtist();
 if(genreName == null || genreName.equalsIgnoreCase(FILTER_ALL)) {
 if (albums.indexOf(albumName) < 0 &&
 artist.equalsIgnoreCase(artistName))
 albums.add(albumName);
 else {
 if (albums.indexOf(albumName) < 0 &&
 genre.equalsIgnoreCase(genreName) &&
 artist.equalsIgnoreCase(artistName))
 albums.add(albumName);
 albums.sort();
 return albums;
 * get the number of audio tracks stored in this data model
 * @return int the number of tracks
public int getTrackCount() {
 return data.size();
/** constant to select all items of a given part */
public static final String FILTER_ALL = " all";
}...and here the changed CollectionThread now caching found File objects in a vector
* Light Development Playlist Editor
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.app.playlisteditor.data;
import com.lightdev.lib.util.InfoThread;
import java.io.File;
import java.util.Vector;
import java.util.Enumeration;
* A class to collect audio data from a given storage location.
* 
* <code>CollectionThread</code> uses ID3 tag information to gain data.
* 
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software as well as any licensing notes
* inside this documentation
* @version 1, October 13, 2004
public class CollectionThread extends InfoThread {
 * constructor
 * @param model AudioDataModel the data model to collect data to
public CollectionThread(AudioDataModel model) {
 this.model = model;
 * constructor, creates a new empty AudioDataModel
public CollectionThread() {
 this(new AudioDataModel());
 * set the data model to collect data to
 * @param model AudioDataModel the model to collect data to
public void setModel(AudioDataModel model) {
 this.model = model;
 * get the data model associated to this thread
 * @return AudioDataModel the data model
public AudioDataModel getModel() {
 return model;
 * set the directory to collect data from
 * @param rootDir File the directory to collect data from
public void setRootDirectory(File rootDir) {
 this.rootDir = rootDir;
 * this is the method to prepare a thread to run.
protected void prepareThread() {
 maxValue = -1;
 filesProcessed = 0;
 innerCount = 0;
 fileList = new Vector();
 * do the actual work of this thread, i.e. iterate through a given directory
 * structure and collect audio data
 * @return boolean true, if work is left
protected boolean work() {
 boolean workIsLeft = true;
 if(getStatus() < STATUS_HALT_PENDING) {
 countElements(rootDir.listFiles());
 if(getStatus() < STATUS_HALT_PENDING) {
 workIsLeft = collect(); //collect(rootDir.listFiles());
 fileList.clear();
 fileList = null;
 return workIsLeft;
 * count the elements in a given file array including its subdirectories
 * @param files File[]
private void countElements(File[] files) {
 int i = 0;
 while (i < files.length && getStatus() < STATUS_HALT_PENDING) {
 File file = files;
if (file.isDirectory()) {
countElements(file.listFiles());
else {
fileList.add(file);
i++;
maxValue++;
* read data into model
* @param files File[] the file array representing the content of a given directory
* @return boolean true, if work is left
private boolean collect(/*File[] files*/) {
Enumeration files = fileList.elements();
while(files.hasMoreElements() && getStatus() < STATUS_HALT_PENDING) {
File file = (File) files.nextElement();
try {
model.addTrack(file);
catch(Exception e) {
fireThreadException(e);
filesProcessed++;
if(++innerCount > 99) {
innerCount = 0;
fireThreadProgress(filesProcessed);
return false;
int i = 0;
while(i < files.length && getStatus() < STATUS_HALT_PENDING) {
File file = files[i];
if(file.isDirectory()) {
collect(file.listFiles());
else if(file.getName().toLowerCase().endsWith("mp3")) {
try {
model.addTrack(file);
catch(Exception e) {
fireThreadException(e);
i++;
filesProcessed++;
fireThreadProgress(filesProcessed);
return (i<files.length);
/** the directory to collect data from */
private File rootDir;
/** the data model to collect data to */
private AudioDataModel model;
/** the number of files this thread processed so far while it is running */
private long filesProcessed = 0;
/** a list to temporary store found files */
private Vector fileList;
/** counter to determine when to fire progress messages */
private int innerCount = 0;

HT1391 I recently purchased music from power music. I downloaded it to I tunes. I don't know where to look for it in itunes. I am not that computer savvy but I would like to put it on my mp3 player. Any help would greatly be appreciated.

I RECENTLY PURCHASED WORKOUT MUSIC FROM POWER MUSIC. I HAVE DOWNLOADED THEM TO ITUNES. WHERE DO YOU LOOK FOR THE DOWNLOADED FILES IN ITUNES? I AM NOT REALLY COMPUTER SAVVY. I WOULD ALSO LIKE TO DOWNLOAD THEM TO MY MP3 PLAYER APPRECIAAND HOW DO I GO ABOUT DOING THAT? THANK YOU FOR ANY HELP. GREATLY APPRECIATED.

Please turn off your caps lock.
All caps indicates shouting, is considered rude, and is difficult to read. Many will not read such posts.
Your music will be in Library>Music on the left side of the itunes page.
Itunes only syncs with Apple devices.

With the new version of ITune, I do not know how to add a podcast to a playlist. The "add to playlist" which was easily found on older versions is not available. Your help will be appreciated.

I have difficulties with the new version of ITune, which I never experienced in the older versions.
1. I do not know how to transfer a new radio podcast to a playlist. The previous option "show in playlist" does not appear.
2. I do not know how to download an older podcast from the list of available ones offered for download. The latest one only is downloading, none other, not even the most recent but one.
Your help will be greatly appreciated in these difficulties.
I thank you in anticipation.
Curnonego

Continued at --> https://support.mozilla.com/en-US/questions/896391#answer-preview
Moderator: Please lock https://support.mozilla.com/en-US/questions/896385?s=&r=1&as=s

Hello, I have created a distribution kit for my program.The problem is that the when the program is installed onto another computer, it fails to communicate with field point (Using FP-AO-200 and FP-AO-1000). Help is greatly appreciated, Thanks faen9901

Hi Everyone,
I have a program that sends information(analog output) to lab windows cvi in the form of a text file or user input.
The program runs on the computers that I have the field point explorer and lab windows cvi installed on. In order to run the program without always installing labwindows/cvi and field point; I wanted to create an executable file that could be load on another computer.
I used the create distribution kit part of labwindows/cvi to do this.After creating the distribution kit, I then installed it
to another computer.
My user interface appears on the screen, when the user clicks on the exe. file, but no data is sent to the field point module. I know that the data is being read from the user and textfile because in it appears in the uir.
The following are some details about the problem:
1. On another computer without labwindows/cvi and field point explorer not installed - no data is sent to field point module
I know this because a current is being read on the current meter connected to field point module.
My questions are the following:
1. What are the possible reasons for the data not being sent to the field point module?
2. Do I still need to create an iak. (Installing Field point Explorer) file stored on any new computer that I install my created distribution kit file too?
Thankyou very much for any help that you can provide. I greatly appreciate it.
Faen9901

Re: Hello, I have created a distribution kit for my program.The problem is that the when the program is installed onto another computer, it fails to communicate with field point (Using FP-AO-200 and FP-AO-1000). Help is greatly appreciated, Thanks faen9901Faen9901,
1) If you do not install FieldPoint Explorer, the FieldPoint Server is not installed so there is nothing on the target computer that knows how to talk to the FieldPoint system.
2) Yes, you need an IAK file on the target computer. Assuming the settings (i.e. com port#) are identical you can simply include the iak file as part of the distribution.
3) You also need to include as part of your installer the file "fplwmgr.dll". If this file is not installed, your program will not be able to access the FieldPoint Server. Alternatively, this file is installed automatically if FieldPoint Explorer detects LabWindows/CVI or Measurement Studio Development versions on the target computer or if you choose to do a custom FieldPoint Explorer installation and
choose to provide LabWindows/CVI support.
Regards,
Aaron

I have mistakenly deleted a mail folder which I had created. Can't remember if it was located to 'iCloud' or 'On My Mac'. How can I retrieve the emails contained in this deleted folder? Your help will be immensely appreciated!

I have mistakenly deleted a mail folder in which I had created. I can't remember if it was located to 'iCloud' or 'On My Mac'. How can I retrieve the emails contained in this deleted folder? Your help will be immensely appreciated!

Yeah not a problem. It does seem though that if you did not have a Time Machine backup then you may not be able to recover the deleted folder :/ But for future reference to prevent any of this, a Time Machine backup is a great investment.
What it does is create an entire backup of your computer anything from personal information down to the screen saver.
What you first need is a new external hard drive (I would recommend a 1TB or higher just to prevent running out of space soon).
after that, just plug in the drive to your computer.
once it is plugged in, in the top right hand corner, close to the wi-fi symbol, you should see a symbol that looks like a clock with a backwards arrow around it.
click on that and select "open time machine preferences"
just turn the button to the "on" position, and select the backup drive and Time Machine does the rest
very great tool

HT2513 Using iCal on my ipad2 and can't seem to create a repeating event, specifically, an appointment that occurs the second Wednesday of every month. Any help is greatly appreciated....thanks! iPad 2, iOS 5.0.1

Using iCal on my ipad2 and can't seem to create a repeating event, specifically, an appointment that occurs the second Wednesday of every month. Any help is greatly appreciated....thanks!
iPad 2, iOS 5.0.1

Although this isn't currently possible in the iOS Calendar app, go to iCloud.com (not on your iPad, but on a computer browser like Safari or Firefox) and log in. There, you can add an event in Calendar and have the options to make it repeat however you want.

I'm lost when I try to figure out what exaclty is Java.... I need your help

Hi, I know that java is OOP, Multiplatform, etc, etc...
But when I try to look on google for jobs about java or "learn Java" what "Should I know in java"... I always found... whebshpere, oracle, linux, jboss, glassfish, opensolaris, struts, hibernate, spring, eclipse, netbeans, jidea, and so on!!!...
I'm lost... I will be sincere ...
I've started thank for a friend in a world of programming with .NET (ASP.NET SQL .NET Silverlight Windows Server) and was good BUT i feel inside that I prefer Java.
I don't know why but with java I feel free, i think will be a good technology for a long time.
But some things make my crazy.
I cant found a fast path or the right path without getting mess. Like I posted above.
So I need your help, if You are an advance programmer... tell what Should I learn ( essencially ) to get a good job. Oracle + Java ? linux + oracle + java? websphere + java? eclipse or netbeans?? all thouse things are awesome... but I am a HUMAN... I can't learn thouse all things and less in little time.... I just want to have a good preparation for to start to look a job in early time.
I look forward yours answers.
Thanks community.

vidix wrote:
Hi, I know that java is OOP, Multiplatform, etc, etc...
So I need your help, if You are an advance programmer... tell what Should I learn ( essencially ) to get a good job. Oracle + Java ? linux + oracle + java? websphere + java? eclipse or netbeans?? all thouse things are awesome.The answer to that depends on what you want to do at work. I know great developers that never have written a single SQL statement, and I'm always trying to stay away from everything that has a web interface :)
Decide what you want to do at work, and then figure out what technologies you need to know.

Need your Help with Swapping SWF File Problem

Hello,
I have two separate Flash SWF files which I would like upload
into the same HTML file. But I would like to load only one of them
at the time and would like to have a Button on each SWF Flash file
which causes the other SWF to be loaded.
hmmm.. I am not sure if I managed to make sense. :o) Let me
try it one more time. :o) I would like to swap one SWF file for
another SWF file by clicking on the buttons which are placed on the
SWF files! :o)
I was wondering if that is possible or I should think of
another way to get around this problem of mine.
Thank you very much for your help and have a great day.
Cheers,
Babak

Khoramdin wrote:
> Hello,
>
> I have two separate Flash SWF files which I would like
upload into the same
> HTML file. But I would like to load only one of them at
the time and would
> like to have a Button on each SWF Flash file which
causes the other SWF to be
> loaded.
>
> hmmm.. I am not sure if I managed to make sense. :o) Let
me try it one more
> time. :o) I would like to swap one SWF file for another
SWF file by clicking
> on the buttons which are placed on the SWF files! :o)
make one swf as a holder. call it main.fla main.swf file.
Embed that file in your html document. In that file place
button with the
following action :
on (release) {
loadMovieNum("second.swf", 1);
in that file have a button with action to load the 3rd file :
on (release) {
loadMovieNum("3rd.swf", 1);
by loading them in same level (1) they will replace each
other.
Pretty simple..uh ?
Regards
Urami
Happy New Year guys - all the best there is in the 2006 :)
<urami>
http://www.Flashfugitive.com
</urami>
<web junk free>
http://www.firefox.com
</web junk free>

Need Your Help with Listbox

Hello,
I have created a media-player which works just fine. I have a
question regarding the
Listbox which I am using to display the list of musics
avaliable for playing which are
played in senquence.
My question is that I can select any music from the Listbox
but there is not graphical
representation such as "a hand with the pointed figure" or a
colour variation while the
clourser is over the name of the music in the Listbox. Is
there anyway I can create this
graphical change when the courser is over a name in the
Listbox?
Thank you so much for your help and have a great day.
cheers,
Babak :o)

Hi!
I am sorry I can't help you with your problem :-(
But I have got a question: You said you are using "DirectDraw Render for faster drawing (I use Direct X 9)..."
I tried to find a source in the net how to do this because my app is also a little bit slow by drawing the videodata. Can give me a source, lib or sample code how I can do this too? I never found sth. like the DDRenderer :-(
by the way: JMF rox
regards
kozen

Your Help is Greatly Appriciated

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