Powerbook to HDTV. Need cable help.
I'm looking to hook up my early model Powerbook 12 (the one with the the 867mhz processor) to my Sony Bravia hdtv.
Half an hour of googling has yielded this: my powerbook outputs video using some archaic **** called mini vga and there is no easy way of connecting that to a hdtv. So I was hoping some of the kind denizens of the fb forums could help me out and tell me what cables I need to get.
I also read that I would need to get audio to the tv using a separate wire. Is this as simple as hooking up an audio cable from the laptop to the tv or am I missing something?
It does have a PC input. After a bit of hunting around, I think I found the adaptor I need on amazon - http://www.amazon.com/Apple-Mini-VGA-VGA-Display-Adapter/dp/B000068BSC
But what kind of quality can expect from this sort of setup. I know I'm not going to get anywhere near HD, but will i at least get reasonable picture clarity?
Similar Messages
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Hi, my iphone its in recovery mode and when i restore my iphone 5s loading show the blue screen and show note on itunes (unknown error 14) please i need your help please . thanks
In the article Resolve iOS update and restore errors this is what it says about error 14:
Check your USB connections
Related errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4005, 4013, 4014, or “invalid response."
If the USB connection between your device and computer is interrupted, you may be unable to update or restore.
To narrow down the issue, you can also change up your hardware:
Use the USB cable that came with your device, or a different Apple USB cable.
Plug your cable into a different USB port directly on your computer. Don't plug it into your keyboard.
Try a different computer.
If necessary, resolve any further issues with the USB connection, then with your security software.
If you're still seeing the error message, check for hardware issues by following the next section. -
Need some help with a Macally enclosure and a spare internal drive
Need some help with a Macally enclousure
Posted: Oct 1, 2010 10:55 AM
Reply Email
Aloha:
I have a Macally PHR-S100SUA enclousure that does not recognise,my WD 1001fals hard drive. It has worked just fine with other internal drives, but not this one?
This is a spare internal drive that I am trying to make an external drive to store back ups for a lot of data. But so far I can not get it recognized by the computer. Maybe I need different drivers?
Any suggestions?
Dan PageHi-
Drivers aren't typically needed for external enclosures.
Macally has none listed for that enclosure.
The same is true for the WD drive, internal or external; no drivers.
With the exception of high end PM multi drive enclosures, I can't think of any that use drivers.
How is the external connected?
Have you tried different cables, different ports?
Bad/damaged cables are fairly common.
Have you verified connections inside of the enclosure? -
Audio cable help for the new AppleTV.
Audio cable help for the new AppleTV.
Currently I have an original AppleTV with audio RCA plugs to mini plug into my BOSE speakers.
The 2nd Gen AppleTv has a Toslink input. I've looked at cables of Toslink to optical mini. Will this cable work? The optical mini part I'm not sure of what it is.
Thanks so much. The monitor I use doesn't have speakers.
This is the cable I see at Amazon
http://www.amazon.com/gp/product/B0002JFN1K/ref=ordcartshr?ie=UTF8&m=ATVPDKIKX0DER
Message was edited by: musicmakerIf I understand your question correctly, you want to connect your Apple TV2 to your Bose system using a mini plug.
You will need an optical to digital coax RCA converter (find it on Ebay about $15), then you can connect your mini cable. Here is a link to one I recently bought on Ebay: http://fwd4.me/nrQ -
my husand received a ibook from a customer as a form of payment for some work he did. It works but need some help trying to figure out some things any help will be appreciated. We received it with a admin password so i rebooted it with my new mac os x 10.5.4 to set our own admin password. I can connect to internet with my cable modem no problem however it will not let me open yahoo! it says not a supported browser so i click safari 5 to download and it then tells me that bill of materials is missing any ideas? when i load my mac os x disk it will not load just spins in tray all cds work so dont know why it won't run. It occassionally tells me that classic doesnot have mac os 9 supported?Also any updates i need from this info would also help me out. thank you.
mac os x version 10.3.9 processor 300 mhz PowerPc G3/powerPc 750 (83.2) memory 192 MB L2 Cache 512 kb bus speed 67 Mhz boot rom version 3.2.4f1
ata-4 bus: Toshiba 5.59GB revision N2.10c OS9 drivers:Yes
Safari 1.3.2
I hope any of this helps. Not really wanting to invest alot of money to do modifications just want to be able to do simple tasks like:itunes check email etcHI and welcome to Apple Discussions...
Try repairing permissions.Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
And since you don't the original install disc, boot in Safe Mode to make sure the startup disk is ok.
Instructions for starting up in Safe Mode
What is Safe Mode
It occassionally tells me that classic doesnot have mac os 9 supported?
The original owner probably had the Classic environment installed (Mac OS 9).
For software updates, click the Apple Menu / Software Update...
Carolyn -
Hi Someone Know why my charger is not working properly but always it was been working good but now when conect my iphone (3gs) appears a golden triangle saying :Charging is not Supported with this accessory. Please I Need Some Help Here. Thanks =D
sounds like the cable or the iphone connector are somehow damaged
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Beginner to iDVD, needs basic help to get started
I am in need of help. I want to make DVDs of my old 8mm tapes. I have a Sony 8mm video camera. What do I need , like adapters, cables or cards to make this happen. I have iDVD on my system, but have never attempted anything like this before. I just recently purchased this computer. Can ya'll help me get started?
ThanksCharley,
Read this:
http://www.macworld.com/2004/05/features/fromvhstodvd/index.php
You'll just use your Sony8mm like the VHS deck.......
John B. -
I need serious help with my nano!!
So I was running the lastest iPod updater tool from Apple and I hit restore. The line went all the way then it said factory settings have been restored, although both the restore and update buttons were blacked out in the updater tool. The iPod never restarted like its supposed to when you restore it, it just kept on blinking do not disconnect. So I held down menu and the center button to manually restart it. It restarted in black and while blinking do not disconnect. The iPod updater program froze. I went to my computer and it said something like "Removable device" instead of "Andrew's iPod" and I clicked on it and it said it had to be formated. I hit no and then clicked "safely disconnect" and safely disconnected the iPod. I unplugged it and it showed a check mark saying "ok to disconnect". So then I disconnected to cable and it showed some battery ion then shut off. That makes no sense because it had been sharging for hours prior to this. Now when I plug it in it doesn't do anything. Nothing shows up on the iPod and I hit every button and nothing happens. The computer doesn't recognize anything. I need some help big time.
figured it out myself
-
i need some help restore my iphone than you the erro mesaje is (2009) it say the iphone could not be restored. an unknown error occurred (2009).
http://support.apple.com/kb/TS3694#error2009
If you experience this issue on a Mac, disconnect third-party devices, hubs, spare cables, displays, reset the SMC, and then try to restore.
If you are using a Windows computer, remove all USB devices and spare cables other than your keyboard, mouse, and the device, restart the computer, and try to restore.
If that does not resolve the issue, try the USB issue-resolution steps and articles listed for Error 1604 above.
If the issue persists, it may be related to conflicting security software. -
In desperate need of help!! I feel like i'm using ...
Hi, our broadband at home is stupidly slow. Especially the wireless. It feels like im running dial up from ten years ago.
The problem has been ongoing for a long time, but i've only just returned home from uni, hence why it has taken me so long to ask for help.
After reading on the forums about the shoddy service the india call centre gives, i decided it would be best to try the forums first.
The internet is consistently slow, and it also seems to reach speeds of 0 kb/s at times, sometimes disconnecting me, other times not.
These are my ADS stats, i will add my test results from the bt speed checker once it has finished. FAST RESPONSES WOULD BE LOVED! My net even died from trying to post this, and its the only thing im running.
Bump: Twice.
ADSL line status
Connection information
Line state
Connected
Connection time
0 days, 1:21:33
Downstream
7,616 Kbps
Upstream
448 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.1
Latency type
Interleaved
Noise margin (Down/Up)
7.1 dB / 21.0 dB
Line attenuation (Down/Up)
18.0 dB / 11.0 dB
Output power (Down/Up)
19.8 dBm / 11.9 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
655 / 0
CRC Errors (Down/Up)
6 / 2147480000
HEC Errors (Down/Up)
nil / 0
Error Seconds (Local)
5
Edit:
This Test comprises of Best Effort Test: -provides background information.
Download Speed
158 Kbps
0 Kbps
7150 Kbps
Max Achievable Speed
Download speedachieved during the test was - 158 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :7616 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 6500 Kbps
Solved!
Go to Solution.Your line stats look great, your sync speed is good, and your IP profile is correct.
Your download speed is poor.
This could be :
1) Hot Virtual Path at the exchange - basically your exchange has run out of bandwidth. Do you get similar poor download speeds at all times of day and night? If you get much faster speeds in the early morning or during the daytime, then you need the help of the forum moderators.
2) Your WiFi connection is not working properly. Do you get similar poor download speeds when connected to the HomeHub via an ethernet cable? It is worth trying if you haven't done so.
3) Are you totally sure you don't have any other devices connected to your WiFi connection dragging down your bandwidth? Go the the "Home Network" tab in the HomeHub admin screens and see what is connected
4) Are you signed up with BT FON? I wonder if other people are connecting to your hub and sucking up your bandwidth? (this can cost 0.5 Mbps) Are you living in / near a very public area?
Hope this helps. -
Iphone 5 changes time randomly.. need urgent help!!
hi everybody .. i need urgent help to fix the problem of my iphone 5 ( IOS 7, Vodafone Germany) .. 2 weeks ago i noticed that the time on iphone was completely wrong and not related even to other time zones .. sometimes it freezed at the same minute for 1 hour .. sometimes it ran anticlockwise.. i switched off the automatic time setting..i made reset and erased all contents and reloaded all configuration from iCloud..the same problem.. i registered it as new iPhone .. no improvement... i switched off the WIFI..3G...i made reset using iTunes .. same error. same error... i took it to Apple store in Dresden- Germany and demostrated the problem there .. they told me that the problem beyond their knowledge and i have to contact apple support ... i sent the iPhone to Apple support in Netherland ... they sent it back on the next day coz they were not able to reproduce the problem...after regestering the iPhone again with my ID.. the same problem ... it's catastrophic coz many functions are time dependent (imessege, Calender, Email, etc.. )..and i cannot rely on my iPhone anymore... has anybody encountered the same problem in germany... and what is the solution?
If the phone is failing to charge, then there are three possibilities -
1) The charging cable is defective - does it work with anything else?
2) The power source is defective - unlikely since you have tried different ones with same result.
3) The phone has a hardware failure - which means you need to take to an Apple store or call them up for advice. -
Basic Output program need some help...Please
import java.io.*;
class FileOutputDemo
public static void main(String args[])
int one=1, two=2, three=3;
FileOutputStream out; // declare a file output object
PrintStream p; // declare a print stream object
try
// Create a new file output stream
// connected to "myfile.html"
out = new FileOutputStream("myfile.html");
// Connect print stream to the output stream
p = new PrintStream( out );
p.printf ("This is written to a file %d", one);
p.close();
catch (Exception e)
System.err.println ("Error writing to file");
}Hello I am new to java, and I hope someone help me to modify the above code in order to make it work as the following:
I have a list of integer values like 1, 2, 3, 4? 10
And I want the program to substitute the integer values (the integer declared list) subsequently one by one to output a new html file as the following output:
This is written to a file 1
This is written to a file 2
This is written to a file3 ?etc
Also this substitution has to be outputted to a new file every time.
Thank you very much in advance for your kind help
if i have to post this anywhere else please advise me..
Adamimport java.io.*;
public class FileOutputDemo
public static void main(String[] args) {
FileOutputStream out; // declare a file output object
PrintStream p; // declare a print stream object
try
// Create a new file output stream
// connected to "myfile.html"
out = new FileOutputStream("myfile.html");
p = new PrintStream( out );
int[] arrayOfInts = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
for (int element : arrayOfInts)
p.printf (element + " ");
p.close();
// Connect print stream to the output stream
catch (Exception e)
System.err.println ("Error writing to file");
}ok .... guys i really understand what do you mean,
i only need your help to make the program print one integer at a time from the array to a seprate file ....what do you suggest ... any hints
Thanks -
Remote App on iPad connects but drops after about 20 mins. Need to turn off wait about 1 minute, then turn on wifi on iMac before it can reconnect. Need some help please.
Already gone through troubleshooting guide a zillion times. Thanks.This worked for me... A little time consuming but once you get rolling it goes GREAT... Thanks....
I got my artwork and saved it to my Desktop
Opened up Microsoft Paint and clicked on "File" and "Open" and found it to get it on the screen to resize it
Clicked "resize" and a box for changing it opened up
Checked the box "Pixels" and "Unchecked maintain aspect ratio"
Set Horizontal for 640 and Vertical for 480
Clicked on "OK" and went back to "File" and did a "Save As" and chose JPEG Picture
It came up "File Already Existed" and clicked "OK" (really did not care about the original artwork I found because wrong size)
Went to iTunes and on the movie right clicked on "Get Info", clicked on "Details", then "Artwork"
Go to the little box on the top left that shows your old artwork and click on it to get the little blue border to appear around it and hit "Delete" to make it gone
Click on "Add Artwork" and find it where you put the one from above on your Desktop and hit "Open" and OK and your new artwork is now there and all good.
Sounds like a lot of steps to follow but after around 5 or so you will fly through it. This worked perfect on my iPhone 6 Plus and I have artwork on my Home Videos now. -
Need your help in Remodeling concept
Hi Gurus need your help in time estimations
I have a cube with data and now I need to add 10 new info objects to the cube which are including Date fields (BUDAT, BLDAT) these 10 fields will be populated to the cube from a Z table in ECC as we donu2019t have these fields in the cube we have to go for remodeling of the cube
My client requires how much time it will take to complete this
Now I want to know how much time it would take to do this (if any customer exits and user exits are required) and addition if new fields will have any effect on the current queries
Please advice in this
Thank youThe time taken will depends on a lots of factor like server speed, available memory, background jobs etc. Apart from this, the time will also depends on how much the cube is filled i.e. the no. of records in the cube. Its very abstract to tell you the exact time taken for this. But, please make sure that you have the backup of the cube which you are going to re-model. T0 say, I think 3-4 hours should be ok for the remodelling.
Thanks.
Shambhu -
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.
* <p>
* <code>CollectionThread</code> uses ID3 tag information to gain data.
* </p>
* <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.</p>
* @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.
* <p>
* <code>InfoThread</code> implements the following working scheme
* </p>
* @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
* <p>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.</p>
* @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.
* <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.</p>
* @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.
* <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.</p>
* @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
* <p>This constructor can be used for cases where a RandomAccessFile has already
* been opened and will be closed elsewhere</p>
* @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
* <p>This constructor opens and closes the audio file for reading</p>
* @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
* <p>This constructor opens and closes the audio file for reading</p>
* @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.
* <p>
* <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.
* </p>
* <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.</p>
* @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
* <p>This will attempt to read ID3 tag data from the file.</p>
* @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
* <p>Ugly code, I know, but it simply hard codes all combinations of the the mentioned
* parameters. Any more elegant implementations welcome.</p>
* @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.
* <p>
* <code>CollectionThread</code> uses ID3 tag information to gain data.
* </p>
* <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.</p>
* @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 */
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