Help! File locking/multi-thread/instance problem!

Hi,
I have a program which runs multiple threads and they call a seperate java class to write information to a file. However because there are many threads some of the information sometimes gets lost. Unfortunately I am restricted to Java 1.1 so cannot use file locking. Does anybody know of an effective way of locking files before Java 1.4?
Alternatively it would be just as useful if only one instance of the writer class existed to write to files. Therefore is it possible for different programs/threads calling this writer class to share one instance of it so only one writer program is active thus preventing the loss of information that happens when multiple instances try to write to the same file.
Any help would be very much appreciated,
Thanks
Paul

Alternatively it would be just as useful if only one
instance of the writer class existed to write to files.
Therefore is it possible for different programs/threads
calling this writer class to share one instance of it so
only one writer program is active thus preventing the
loss of information that happens when multiple
instances try to write to the same file.This is a very good idea. Or you can implement a static method write. This, combined with syncr. will give you exactly what you need: a lock not on the file but on the writer to the file.

Similar Messages

Help with understanding multi-threaded code

Hi Everyone,
I am currently reading a book on multi-threading and up until recently I have been able to understand what is going on. The thing is the complexity of the code has just jumped up about two gears without warning. The code is now using inner classes which I am trying to develop an understanding of but I am not finding it easy going, and the book has been lite on explanations. If anybody can help with the following code it will be really appreciated.
public class SetPriority extends Object
     private static Runnable makeRunnable()
          Runnable r = new Runnable()
               public void run()
                    for(int i=0; i<5; i++)
                         Thread t = Thread.currentThread();
                         System.out.println("in run() - priority=" + t.getPriority() +
                                      ", name=" + t.getName());
                         try{
                              Thread.sleep(2000);
                         }catch(InterruptedException x){
                              //ignore
          return r;
     public static void main(String[] args)
          Thread threadA = new Thread(makeRunnable(), "threadA");
          threadA.setPriority(8);
          threadA.start();
          Thread threadB = new Thread(makeRunnable(), "threadB");
          threadB.setPriority(2);
          threadB.start();
          Runnable r = new Runnable()
               public void run()
                    Thread threadC = new Thread(makeRunnable(), "threadC");
                    threadC.start();
          Thread threadD = new Thread(r, "threadD");
          threadD.setPriority(7);
          threadD.start();
          try{
               Thread.sleep(3000);
          }catch(InterruptedException x){
               //ignore
          threadA.setPriority(3);
          System.out.println("in main() - threadA.getPriority()=" + threadA.getPriority());
}My greatest challenge is understanding how the makeRunnable() method works. I don't understand how this inner class can be declared static and then multiple "instances" created from it. I know that I have no idea what is going on, please help!!!
Thanks for your time.
Regards
Davo
P.S.: If you know of any really good references on inner classes, particularly URL resources, please let me know. Thanks again.

Yikes!! The good news is that you're unlikely to see such convoluted code in real life. But here we go.
"private static Runnable makeRunnable()" declares a method that returns objects of type Runnable. The fact that the method is declared "static" is pretty irrelevant - I'll describe what that means later.
The body of the method creates and returns an object of type Runnable. Not much special about it, except that you can give such an object to the constructor of class Thread and as a result the run() method of this Runnable object will be called on a new thread of execution (think - in parallel).
Now the way it creates this Runnable object is by using the "anonymous inner class" syntax. In effect the method is doing the same as
public class MyNewClass implements Runnable {
    public void run() {
        // All the same code inside run()
public class SetPriority {
    private static Runnable makeRunnable() {
        Runnable r = new MyNewClass();
        return r;
    // The rest of the original code
}Except you don't bother declaring MyNewClass. You're not interested in defining any new method signatures. You just want to create an object that implements Runnable and has certain instructions that you want inside the run() method. Think of the whole approach as shorthand.
Think about this for a while. In the mean time I'll write up the "static".

Helpful hint while multi-threading

Hi all
This had me stupmed for a little while. A multi-threaded program I'd been working didn't appear to be working correctly. I noticed this was because it looked like the thread never made it to its run() method. The cause of this was the fact id overridden the start() method of the thread without including this.run() at the end. The symptoms of this happening aren't obvious though, and it can be quite puzzling. I hope this gets added to any FAQs etc, or solves someones problem.

And if, for whatever reason, you do need to override start(), you should not call this.run() at the end, you should call super.start() !!!
If you call this.run() at the end, you are having the current thread go and do the run method.

Need help to do multi-threading

Can some one help me in creating an application that constantly polls the specified local directory for any new XML files. When an XML file is detected, it will create a new thread to handle the processing of the file, it will then assign the XML file to the new thread, and move the XML to temp directory.

despite the few information about your program, the usage of timers seems be the best choice:
import java.util.*;
public class MainAppClass
     MainAppClass()
          Timer dirCheck = new Timer();
          long CHECKING_INTERVAL = 20000; // milliseconds
          // you may also include parameters in the TimerTask extended class
          // like the list of directories, etc.
          DirListener dirListener = new DirListener();
          // Now you schedule the TimerTask execution
          dirCheck.schedule(dirListener, 0, CHECKING_INTERVAL);
class DirListener extends TimerTask
     public void run()
          // here you verify the list of directories
          // and launch one thread for each XML file
          // founded in these directories
}take a look in the java.util.Timer and java.util.TimerTask classes

ODBC Client/Server mode, multi-thread running problem

I got following message when I was running mutithread program, with ODBC API.
Does anyone have this experence? Who can solve this? thanks!
[TimesTen][TimesTen 7.0.4.0.0 CLIENT]Communication link failure. System call recv() failed with OS error 73. ECONNRESET: The connection has been broken during a network send or read operation. Probably the server exited unexpectedly.

But We still got the message.
Do we make a mistake with calling ODBC API ? or other programming error?
- server log:
17:03:35.89 Err : SRV: 1740850: EventID=99| Denying connection request from an u
nknown source
17:03:35.89 Err : SRV: 1740850: EventID=68| Failed to read request from client.
Closing connection without reply.
2008-09-05 17:06:22.69 Warn: : 1986668: 8396816 exited while connected to dat
a store '/home/timesten/datastore/tt_ds' shm 134223114 count=7
17:13:43.43 Err : SRV: 2707458: EventID=99| Denying connection request from an u
nknown source
17:13:43.43 Err : SRV: 2707458: EventID=68| Failed to read request from client.
Closing connection without reply.
===============================================
- client log:
[ TimesTen ][ T imesTen 7.0.4.0.0 CLIENT ]Communication link failure. System call select() failed with OS
error 78. This operation has Timed Out. Try increasing your ODBC timeout attribute or check to make sure the target TimesTen Server is running, nativeErr=0
[ TimesTen ][ T imesTen 7.0.4.0.0 CLIENT ]Communication link failure. System call recv() failed with OS
error 73. ECONNRESET: The connection has been broken during a network send or read operation.
Probably the server exited unexpectedly., nativeErr=0
Edited by: user4565028 on 2008/9/5 上午 2:45
Edited by: user4565028 on 2008/9/5 上午 2:45
Edited by: user4565028 on 2008/9/5 上午 2:46

Lightroom 2 Help files

I deleted my usual browser Mozilla because it seems to be causing a processor problem.But the help file in Lightroom 2 would no longer work.Reinstalled Mozilla, help files back OK.But same problem with processer.
1) Can I change Lightroom so that it will work with anothe browser ie Internet Explorer. If so how
2) Can the Mozilla issue be addressed
rob

The files should open with whatever is designated as the default browser. Check to make sure that IE is now your default browser and then try accessing the help files again. If they open in IE they you can delete the other browser.

Multi-Instrument + Multi-Thread problem found

Right.....I have done a lot of research on why logic was not multi-threading correctly and have narrowed it down to one problem...using Kontakt as a multi instrument.
My Mac is a 2 x 2.26 GHz Quad-Core Intel Xeon. This means that it is capable of distributing work loads over the multiple cores of the CPU to prevent core audio overloads from happening.
If I run any plug ins in stereo or mono mode, the CPU acts as it should; I will load up a program, add processing and when the load is becoming a strain for the CPU, I use a bus send and work on that, then the workload is redistributed across more of the cores by logic, allowing me to continue working.
However, I need to use Kontakt as a multi instrument. I usually have 3 instances of Kontakt open and on each one of these, I usually have a minimum of 10 outputs being sent to the aux channels of logic. Therefore using Kontakt as a stereo instrument is not an option, as I would have to open around 30 instances!
Here is the problem; say for example, in Kontakt I send a kick drum out of Kontakt into AUX 3 + 4. The AUX channel in logic will being to show output. I can now EQ this single kick drum seperate from any other sound in logic.
If I began to add processor heavy plug ins to this AUX output, rather than share the workload across the cores as it should and does with stereo instruments, logic now only uses a single core and it will core audio overload very quickly.
As I said, this only happens when I set up Kontakt as a multi instrument. The main problem is when I begin to have many different outputs from my 3 instances of Kontakt, as by this stage, many different sounds will have processing. All 3 multi instruments and their processing are then controlled by the single processor and the other 7 are almost inactive! It therefore becomes impossible to use Kontakt and I have to switch to stereo instances. This happens for all multi-instruments not just Kontakt.
I have just purchased Kontakt 4, I am upgrading to OSX 10.6 (Snow Leopard) and am updating Logic to v9.1. (From v9.0) Will this help at all? Is there an answer to this problem or will I just have to open 30 stereo and mono instances of Kontakt to continue working!
I have included a link to a ZIP file with two photos of the problem. In the photo named MASSIVE. I have one instance of massive running as a stereo instrument. It is sent to a BUS where I applied the WAVES L316 Limiter. I did this multiple times and if you can see on the system performance (Top right) Logic is sharing the workload over the processors as it should.
In the second picture named KONTAKT MULTI - I have done the same thing, but I have opened Kontakt as a multi instrument, sent a kick drum to AUX 2 and then forwarded this to a send where I applied the same WAVES L316. You can see on the system performance meter (Top Right) that Logic now does not re-distribute the workload, it is using one core and anymore plug ins applied to the AUX or bus channels relating to Kontakt will now make it core audio over load, even though now I am using far less processing.
PHOTOS: http://www.sendspace.com/file/og8a94

Ditto
Using Pro 8 Studio, I had this problem after installing Snow Leopard.
Invested £159 in Pro 9 update, same problem.
This has stopped most of my work since my external WK4 sounds are superior to the included software sounds.
As suggested, will now report since since it obviously seems to be a general problem.

Multi-thread file reading

Hi,
I've got a tricky question: I have to read large files (over 150 MB) - I found here several topics about reading such a large files, but all examples were about single-threaded reading from file... Do you think, multi-threaded reading would be faster? I am in quite a dilemma: multiple threads in general means faster processing, but in this case, all threads are reading from the same source/file
(I use javax.mail.util.SharedFileInputStream for multi-threaded file reading - each stream in separated thread)
so what do you think, which is faster: single-thread or multiple-thread? and if so, how many threads would be fine - 2, 3 or 4?
thanks a lot

kvasoo wrote:
Herko_ter_Horst wrote:
The I/O thread processing thread(s) approach will work when the processing takes more time than the I/O (i.e. when the medium can transfer information faster than a single thread can process it).it is very likely that processing will take more time then file reading - there will be 5-7 regex to match per line, sometimes object creation and filling object fith some data
so it seems to be just like I wrote some posts before: while one thread is reading data from file, another could process already read data - I am just considering malcolmmc's idea of blocking queue - one thread to perform I/O operations and one thread to process data - these threads would be connected through blocking queue....hmm that sounds good to me.. thanks malcolmmc
thank you guys for your help & suggestions and if you still have something to advise me, I will be thankfulSeparation of concerns, dude. Read the raw data in, in one thread, and split out the processing to multiple threads. I really advise you take the time to actually measure the performance of the multi-threaded processing vs the single-threaded one though. I mean, really do actually do that. Don't just assume - as so many people do - that throwing more threads at every problem will always speed it up, because it's so often not the case.

PROBLEM OF MULTI-THREAD?????

Hi I'm writing a program like Multi-tap (the text entry before T9 introduced) on mobilephone.
I'm having problem with some of the KEYs. They do not work properly.
As indicated in the code
HERE HERE [3] suppose to function as space button....However whenever the key is pressed before the 'time out' (I use sceduler to implement the time out) it will print half of the previous character instead of space. this key is not related to the scheduler. so i suspect it is something related to multi-thread programming.
HERE HERE [1] function as the caps lock. it can even show the indicator properly.... so i need to settle this b4 i continue.
HEREHERE [2] function as clear button. it doest work too
Someone please help me....
* To change this template, choose Tools | Templates
* and open the template in the editor.
package textEntry;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.*;
import java.util.*;
* @author Ed's
public class MyCanvas extends GameCanvas {
    public static final String[] keys =
    {".?!,@`-_:;()&\'\"~10�$��+x*/\\|[]=<>#","abc", "def", "ghi", "jkl",
    "mno", "pqrs", "tuv", "wxyz"};
    public static final String[] capitalKey =
    {".?!,@`-_:;()&\'\"~10�$��+x*/\\|[]=<>#","ABC", "DEF", "GHI", "JKL",
    "MNO", "PQRS", "TUV", "WXYZ"};
    StringBuffer width = new StringBuffer();
    Timer keyTimer;
    textEntryMain main;
    public static char ch;
    public boolean keypress=false;
    public boolean capital;
    public boolean diffrentKey;
    String currentIndicator="abc";
    int countPress=0;
    //int previndex=0;
    public int counter=-1;
    int index=-1;
    int print=0;
    int white_space=6;
    public StringBuffer sms;
    int baseline=10;
    int y_axis=12;
    int line=1;
    char last;
    boolean dontPrint=true; //dont print if timer printed or it is at begining
    Font font;
    Graphics g;
    public long time;
    int poundHit=0;
    String justPressed;
    String prevPressed=null;
    char prevChar;
    //Sms class
    Form smsfrm;
    TextField smsField ;
    //Char Selection speed
    public boolean first;
    int selection_speed=1500;
    //font color (blue)
    public int red=0,green=0,blue=255;
    //Background color (white)
    public int back_red=250,back_green=250,back_blue=250;
    Form menu;
    public MyCanvas(textEntryMain main){
        super(false);
        first=true;
        this.main=main;
        sms=new StringBuffer();
        g=getGraphics();
        font=Font.getFont(Font.FACE_PROPORTIONAL,Font.STYLE_BOLD,Font.SIZE_LARGE);
        keyTimer = new Timer ();
        keyTimer.schedule (new task (this), selection_speed, selection_speed);
        drawIndicator(currentIndicator);
    public void drawIndicator(String indicator){
        Font f = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_ITALIC, Font.SIZE_SMALL);
        Graphics g = getGraphics();
        g.setFont(f);
        int x= getWidth()-20;
        g.setColor(back_red,back_green,back_blue);
        g.fillRect(x,2,15,10);
        g.setColor(20,20,20);
        g.drawString(indicator, x, 2, g.TOP|g.LEFT);
    public void callPaint(char ch){
        drawIndicator(currentIndicator);
        Graphics g= getGraphics();
        g.setColor(back_red,back_green,back_blue);
        if(first){
            g.fillRect(0,0,getWidth(),getHeight());
            reset();
            redrawAll();
            first=false;
        //baseline -1 so that i can cover the pointer
        g.fillRect(baseline-1,y_axis,font.charWidth(this.last)+3,font.getHeight());
        g.setColor(red,green,blue);
        g.setFont(font);
        g.drawChar(ch,baseline,line*24,g.LEFT|g.BASELINE);
        flushGraphics();
    public void showPointer(){
        Graphics g = getGraphics();
        g.setColor(0,0,0);
        g.drawLine(baseline,y_axis,baseline,2*line*12);
        flushGraphics();
    //pointer appear //pointer disappear-use white line so that it cover the pointer line
    public void hidePointer(){
        Graphics g = getGraphics();
        g.setColor(back_red,back_green,back_blue);
        g.drawLine(baseline,y_axis,baseline,2*line*12);
        flushGraphics();
    //draw the selected
    public void ConfirmPaint(char ch){
        Graphics g = getGraphics();
        sms.append(ch);
        g.setColor(red,green,blue);
        g.setFont(font);
        g.drawChar(ch,baseline,line*24,g.LEFT|g.BASELINE); //draw the selected
        baseline+=font.charWidth(ch); // so that the nect letter won't be drawn on the same position
        if(baseline>getWidth()-30){     //move to the next line
            width.append((char)baseline);
            baseline=10;y_axis+=24;
            line+=1;
        flushGraphics();
    public synchronized void deleteChar(){
        if(sms.charAt(sms.length()-1)==' '){
            baseline-=white_space;
            Graphics g= getGraphics();
            g.setColor(back_red,back_green,back_blue);
            g.fillRect(baseline,y_axis,font.charWidth(sms.charAt(sms.length()-1))+2,font.getHeight());
            sms.deleteCharAt(sms.length()-1);
        else{
            baseline-=font.charWidth(sms.charAt(sms.length()-1));
            Graphics g= getGraphics();
            g.setColor(back_red,back_green,back_blue);
            g.fillRect(baseline,y_axis,font.charWidth(sms.charAt(sms.length()-1))+2,font.getHeight());
            sms.deleteCharAt(sms.length()-1);
        flushGraphics();
    public void redraw(char ch ){
        Graphics g= getGraphics();
        g.setColor(red,green,blue);
        g.setFont(font);
        g.drawChar(ch,baseline,line*24,g.LEFT|g.BASELINE);
        baseline+=font.charWidth(ch);
        if(baseline>getWidth()-30){
            width.append((char)baseline);
            baseline=10;y_axis+=24;
            line+=1;
        flushGraphics();
    public void reset(){
        if(width.length() >0)
        width.delete(0,width.length()-1);
        line=1;
        baseline=10;y_axis=12;
    public void redrawAll(){
        Graphics g=getGraphics();
        g.setColor(back_red,back_green,back_blue);
        g.fillRect(0,0,getWidth(),getHeight());
        reset();
        for(int a=0;a<sms.length();a++)
        redraw(sms.charAt(a));
    /*public synchronized void keyRepeated (int keyCode) {
        int one=1;
    /*    if(keyCode != KEY_POUND && keyCode != KEY_STAR){
            ConfirmPaint((char)keyCode);
        if (keyCode == 1){
        ConfirmPaint((char)one);
    public synchronized void keyPressed (int keyCode) {
        justPressed=getKeyName(keyCode);
        time=System.currentTimeMillis(); // record the time when the keypress is pressed
        if(justPressed.equals("NUM0")){ //caps lock show indicator .............HERE HERE HERE HERE [1]
            if(poundHit == 0){
                currentIndicator="ABC";
                poundHit++;
                drawIndicator(currentIndicator);
                //set the string buffer to another one
            if(poundHit == 1){
                currentIndicator="123";
                poundHit++;
                drawIndicator(currentIndicator);
            if(poundHit == 2){
                currentIndicator="abc";
                poundHit=0;
                drawIndicator(currentIndicator);
        if(justPressed.equalsIgnoreCase("SEND")){ //send button allocated as clear button   ................. HERE HERE HERE [2]
            if(sms.length()>0){
                hidePointer();
                if(baseline<=10){
                    System.out.println(baseline);
                    line-=2;
                    baseline=(int)width.charAt(line);
                    line++;
                    y_axis-=24;
                deleteChar();
        if(justPressed.equals("STAR")){//space ........................................    HERE HERE HERE HERE HERE [3]
                hidePointer();
                sms.append(" ");
                baseline+=white_space;
                showPointer();
                prevPressed=justPressed;
        else{
            if(justPressed.equals("NUM1")){index=0;}
            if(justPressed.equals("NUM2")){index=1;}
            if(justPressed.equals("NUM3")){index=2;}
            if(justPressed.equals("NUM4")){index=3;}
            if(justPressed.equals("NUM5")){index=4;}
            if(justPressed.equals("NUM6")){index=5;}
            if(justPressed.equals("NUM7")){index=6;}
            if(justPressed.equals("NUM8")){index=7;}
            if(justPressed.equals("NUM9")){index=8;}
            if(index==0){
                keypress=true;
                if(justPressed.equalsIgnoreCase(prevPressed) || dontPrint){
                    if(dontPrint){countPress=35;}
                    if(countPress<34){
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    else{
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    dontPrint=false;
                else{   //this is executed when the key is not repeated (prev!=)
                        ConfirmPaint(last);
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                last=MyCanvas.ch;
                prevPressed=justPressed;
            if(index==1 || index==2 || index == 3 || index == 4
            || index ==5 || index==7){
                keypress=true;
                if(justPressed.equalsIgnoreCase(prevPressed) || dontPrint){
                    if(dontPrint){countPress=4;}
                    if(countPress<3){
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    else{
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    dontPrint = false;
                else{   //this is executed when the key is not repeated
                        ConfirmPaint(last);
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                last=MyCanvas.ch;
                prevPressed=justPressed;
            if(index==6 || index==8){
                keypress=true;
                if(justPressed.equalsIgnoreCase(prevPressed)|| dontPrint){
                    if(dontPrint){countPress=5;}
                    if(countPress<4){
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    else{
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    dontPrint=false;
                else{   //this is executed when the key is not repeated
                        ConfirmPaint(last);
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                last=MyCanvas.ch;
                prevPressed=justPressed;
/////////////task class for schedule on constructor
class task extends TimerTask {
    public static boolean bool;
    MyCanvas canvas;
    public task (MyCanvas canvas) {
        this.canvas=canvas;
    public void run () {
        if(canvas.keypress){
            if(System.currentTimeMillis()-canvas.time>150){ //compare the time with the time out
                canvas.ConfirmPaint(MyCanvas.ch);
                canvas.counter=-1;
                canvas.keypress=false;
                canvas.dontPrint=true;
                canvas.showPointer();
}

Hi I'm writing a program like Multi-tap (the text entry before T9 introduced) on mobilephone.
I'm having problem with some of the KEYs. They do not work properly.
As indicated in the code
HERE HERE [3] suppose to function as space button....However whenever the key is pressed before the 'time out' (I use sceduler to implement the time out) it will print half of the previous character instead of space. this key is not related to the scheduler. so i suspect it is something related to multi-thread programming.
HERE HERE [1] function as the caps lock. it can even show the indicator properly.... so i need to settle this b4 i continue.
HEREHERE [2] function as clear button. it doest work too
Someone please help me....
* To change this template, choose Tools | Templates
* and open the template in the editor.
package textEntry;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.*;
import java.util.*;
* @author Ed's
public class MyCanvas extends GameCanvas {
    public static final String[] keys =
    {".?!,@`-_:;()&\'\"~10�$��+x*/\\|[]=<>#","abc", "def", "ghi", "jkl",
    "mno", "pqrs", "tuv", "wxyz"};
    public static final String[] capitalKey =
    {".?!,@`-_:;()&\'\"~10�$��+x*/\\|[]=<>#","ABC", "DEF", "GHI", "JKL",
    "MNO", "PQRS", "TUV", "WXYZ"};
    StringBuffer width = new StringBuffer();
    Timer keyTimer;
    textEntryMain main;
    public static char ch;
    public boolean keypress=false;
    public boolean capital;
    public boolean diffrentKey;
    String currentIndicator="abc";
    int countPress=0;
    //int previndex=0;
    public int counter=-1;
    int index=-1;
    int print=0;
    int white_space=6;
    public StringBuffer sms;
    int baseline=10;
    int y_axis=12;
    int line=1;
    char last;
    boolean dontPrint=true; //dont print if timer printed or it is at begining
    Font font;
    Graphics g;
    public long time;
    int poundHit=0;
    String justPressed;
    String prevPressed=null;
    char prevChar;
    //Sms class
    Form smsfrm;
    TextField smsField ;
    //Char Selection speed
    public boolean first;
    int selection_speed=1500;
    //font color (blue)
    public int red=0,green=0,blue=255;
    //Background color (white)
    public int back_red=250,back_green=250,back_blue=250;
    Form menu;
    public MyCanvas(textEntryMain main){
        super(false);
        first=true;
        this.main=main;
        sms=new StringBuffer();
        g=getGraphics();
        font=Font.getFont(Font.FACE_PROPORTIONAL,Font.STYLE_BOLD,Font.SIZE_LARGE);
        keyTimer = new Timer ();
        keyTimer.schedule (new task (this), selection_speed, selection_speed);
        drawIndicator(currentIndicator);
    public void drawIndicator(String indicator){
        Font f = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_ITALIC, Font.SIZE_SMALL);
        Graphics g = getGraphics();
        g.setFont(f);
        int x= getWidth()-20;
        g.setColor(back_red,back_green,back_blue);
        g.fillRect(x,2,15,10);
        g.setColor(20,20,20);
        g.drawString(indicator, x, 2, g.TOP|g.LEFT);
    public void callPaint(char ch){
        drawIndicator(currentIndicator);
        Graphics g= getGraphics();
        g.setColor(back_red,back_green,back_blue);
        if(first){
            g.fillRect(0,0,getWidth(),getHeight());
            reset();
            redrawAll();
            first=false;
        //baseline -1 so that i can cover the pointer
        g.fillRect(baseline-1,y_axis,font.charWidth(this.last)+3,font.getHeight());
        g.setColor(red,green,blue);
        g.setFont(font);
        g.drawChar(ch,baseline,line*24,g.LEFT|g.BASELINE);
        flushGraphics();
    public void showPointer(){
        Graphics g = getGraphics();
        g.setColor(0,0,0);
        g.drawLine(baseline,y_axis,baseline,2*line*12);
        flushGraphics();
    //pointer appear //pointer disappear-use white line so that it cover the pointer line
    public void hidePointer(){
        Graphics g = getGraphics();
        g.setColor(back_red,back_green,back_blue);
        g.drawLine(baseline,y_axis,baseline,2*line*12);
        flushGraphics();
    //draw the selected
    public void ConfirmPaint(char ch){
        Graphics g = getGraphics();
        sms.append(ch);
        g.setColor(red,green,blue);
        g.setFont(font);
        g.drawChar(ch,baseline,line*24,g.LEFT|g.BASELINE); //draw the selected
        baseline+=font.charWidth(ch); // so that the nect letter won't be drawn on the same position
        if(baseline>getWidth()-30){     //move to the next line
            width.append((char)baseline);
            baseline=10;y_axis+=24;
            line+=1;
        flushGraphics();
    public synchronized void deleteChar(){
        if(sms.charAt(sms.length()-1)==' '){
            baseline-=white_space;
            Graphics g= getGraphics();
            g.setColor(back_red,back_green,back_blue);
            g.fillRect(baseline,y_axis,font.charWidth(sms.charAt(sms.length()-1))+2,font.getHeight());
            sms.deleteCharAt(sms.length()-1);
        else{
            baseline-=font.charWidth(sms.charAt(sms.length()-1));
            Graphics g= getGraphics();
            g.setColor(back_red,back_green,back_blue);
            g.fillRect(baseline,y_axis,font.charWidth(sms.charAt(sms.length()-1))+2,font.getHeight());
            sms.deleteCharAt(sms.length()-1);
        flushGraphics();
    public void redraw(char ch ){
        Graphics g= getGraphics();
        g.setColor(red,green,blue);
        g.setFont(font);
        g.drawChar(ch,baseline,line*24,g.LEFT|g.BASELINE);
        baseline+=font.charWidth(ch);
        if(baseline>getWidth()-30){
            width.append((char)baseline);
            baseline=10;y_axis+=24;
            line+=1;
        flushGraphics();
    public void reset(){
        if(width.length() >0)
        width.delete(0,width.length()-1);
        line=1;
        baseline=10;y_axis=12;
    public void redrawAll(){
        Graphics g=getGraphics();
        g.setColor(back_red,back_green,back_blue);
        g.fillRect(0,0,getWidth(),getHeight());
        reset();
        for(int a=0;a<sms.length();a++)
        redraw(sms.charAt(a));
    /*public synchronized void keyRepeated (int keyCode) {
        int one=1;
    /*    if(keyCode != KEY_POUND && keyCode != KEY_STAR){
            ConfirmPaint((char)keyCode);
        if (keyCode == 1){
        ConfirmPaint((char)one);
    public synchronized void keyPressed (int keyCode) {
        justPressed=getKeyName(keyCode);
        time=System.currentTimeMillis(); // record the time when the keypress is pressed
        if(justPressed.equals("NUM0")){ //caps lock show indicator .............HERE HERE HERE HERE [1]
            if(poundHit == 0){
                currentIndicator="ABC";
                poundHit++;
                drawIndicator(currentIndicator);
                //set the string buffer to another one
            if(poundHit == 1){
                currentIndicator="123";
                poundHit++;
                drawIndicator(currentIndicator);
            if(poundHit == 2){
                currentIndicator="abc";
                poundHit=0;
                drawIndicator(currentIndicator);
        if(justPressed.equalsIgnoreCase("SEND")){ //send button allocated as clear button   ................. HERE HERE HERE [2]
            if(sms.length()>0){
                hidePointer();
                if(baseline<=10){
                    System.out.println(baseline);
                    line-=2;
                    baseline=(int)width.charAt(line);
                    line++;
                    y_axis-=24;
                deleteChar();
        if(justPressed.equals("STAR")){//space ........................................    HERE HERE HERE HERE HERE [3]
                hidePointer();
                sms.append(" ");
                baseline+=white_space;
                showPointer();
                prevPressed=justPressed;
        else{
            if(justPressed.equals("NUM1")){index=0;}
            if(justPressed.equals("NUM2")){index=1;}
            if(justPressed.equals("NUM3")){index=2;}
            if(justPressed.equals("NUM4")){index=3;}
            if(justPressed.equals("NUM5")){index=4;}
            if(justPressed.equals("NUM6")){index=5;}
            if(justPressed.equals("NUM7")){index=6;}
            if(justPressed.equals("NUM8")){index=7;}
            if(justPressed.equals("NUM9")){index=8;}
            if(index==0){
                keypress=true;
                if(justPressed.equalsIgnoreCase(prevPressed) || dontPrint){
                    if(dontPrint){countPress=35;}
                    if(countPress<34){
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    else{
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    dontPrint=false;
                else{   //this is executed when the key is not repeated (prev!=)
                        ConfirmPaint(last);
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                last=MyCanvas.ch;
                prevPressed=justPressed;
            if(index==1 || index==2 || index == 3 || index == 4
            || index ==5 || index==7){
                keypress=true;
                if(justPressed.equalsIgnoreCase(prevPressed) || dontPrint){
                    if(dontPrint){countPress=4;}
                    if(countPress<3){
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    else{
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    dontPrint = false;
                else{   //this is executed when the key is not repeated
                        ConfirmPaint(last);
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                last=MyCanvas.ch;
                prevPressed=justPressed;
            if(index==6 || index==8){
                keypress=true;
                if(justPressed.equalsIgnoreCase(prevPressed)|| dontPrint){
                    if(dontPrint){countPress=5;}
                    if(countPress<4){
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    else{
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                    dontPrint=false;
                else{   //this is executed when the key is not repeated
                        ConfirmPaint(last);
                        countPress=0;
                        MyCanvas.ch=keys[index].charAt(countPress);
                        callPaint(MyCanvas.ch);
                        countPress++;
                last=MyCanvas.ch;
                prevPressed=justPressed;
/////////////task class for schedule on constructor
class task extends TimerTask {
    public static boolean bool;
    MyCanvas canvas;
    public task (MyCanvas canvas) {
        this.canvas=canvas;
    public void run () {
        if(canvas.keypress){
            if(System.currentTimeMillis()-canvas.time>150){ //compare the time with the time out
                canvas.ConfirmPaint(MyCanvas.ch);
                canvas.counter=-1;
                canvas.keypress=false;
                canvas.dontPrint=true;
                canvas.showPointer();
}

Multi threading under single file channel

Hi,
We have File-Proxy scenario .
We are using fCC sender channel and using
recordset sequence as varaibale
recordsets per message was 250.
When large size file like 2GB was processed, PI is taking 45-50 min to process the file and from proxy end its taking 8 hrs to process this file.
we are using one channel and 250 recordsets per message by chunking file and process to target. We are following EOIO for sequence for these chunk files.
with this approach in PI target system proxy is taking huge time to process.
experts suggested using multi threading and multiple channels are the ideal solution for this issue.
am expecting with multiple channels and multi threading will cause issue for receiver proxy because of more objects and current approach is fine.
Please suggest any other alternatives we can acheive in PI with respect to this issue?
Note: I checked blog for file chunk option under Adv parameters and I cant use that here as FCC and Mapping is there .
Rgds,
aman

Hi Aman,
We had file to proxy interface and the XML payload of the proxy was around 400mb...to reduce the time taken in PI in mapping step we reduced the XML payload of the proxy by cutting the XML tagnames.
for example an xml field <firstname>Anand</firstname> was converted to <f>Anand</f>
with this we were able to achieve about 40-50% reduction in XML payload the file and a good improvement in the time taken by PI mapping to process the file.
Hope it helps,
Thanks,
Anand

The problem about multi-thread in java application

i have problem with the multi-thread in java application, i don't know how to stop and restart a thread safely, because the function thread.stop(),thread.suspend() are both deprecated.
now what i can only do is making the thread check a flag(true or false) to determine whether to start or to stop, but i think this thread will always be in the memory and maybe it will lower the performance of the system, as the program i am developping is working under realtime enviorement.
please help me about it. thanks !

hi,
you can stop a thread by exiting it's run()-method which in terms can be done by checking the interrupted-flag:
public void run(){
while(interrupted()){ //if the thread consists of a loop
or
public void run(){
if(interrupted())return;
if(interrupted())return;
or by the use of the return-statement anywhere withing the run-method. Afterwards, that is when the thread is no longer needed, you clear all the references to the specific thread object by setting them to null:
Thread t;
... //working
t.interrupt(); //interrupting
while(t.isAlive()){
Thread.yield(); //wait till thread t has stopped
t=null;
best regards, Michael

CS2 Help Files Problem - Different than those Previously listed

I installed PSCS2 and the installation appeared to go OK and for the most part the program runs as I would expect.
The issue I have is with the help files. When I try to access the help files the Adobe Help Center opens but the only help available is for PS Elements 4. I did NOT remove PSE4 prior to installing PSCS2 and it is still on my machine.
This is a Dell Dimension XPS, running Win XP Pro, 2.8 G Pentium 4 processor, 1G DDR RAM.
Thanks in advance,
Ken Kovak

Thanks to everyone that posted suggestions on how to fix this. I think that deleting the folders/files can't hurt, but I'm not sure it's really necessary.
The problem for many of us is that the CS2 help package is simply gone. I tried everything suggested in all the other threads - including completely removing and reinstalling several applications - and nothing worked until I simply downloaded the help package from Adobe, placed it in the packages folder, and ran help.
AHC.exe is obviously smart enough to check that folder before opening so if it finds a new package it will apparently rebuild the database and "install" it.
The worst thing in my mind is that Adobe hasn't addressed this problem even though it's a known issue and should have been fixed in the 9.01 update release. How lame is that? It's extremely lame to answer my own question Yes, I'm "teaked" that I've wasted so much time on something Adobe should have fixed but is too lazy to address. Kind of like the Bridge problem...... I grow more disenchanted with Adobe all the time...
Anyone that installed Elements 4.0 (for it's superior management and viewing capabilities) may face this problem.
Again, thanks to all the helpful users and an extremely rotten tomato to Adobe.....

The problem of profiling a multi-thread flash game using adobe scout cc

I have a multi-thread flash game code, it can run perfectly. The main swf creates another swf which will connect to a remote server. I can get profiling information of the main swf using adobe scout cc, but the problem is that I can't get profiling information of another swf ! The scout complains " can't start a session because the telemetry data isn't valid" for another swf. Although some times, the scout does not complain, the Summary Panel of scout provides information“We encountered an error while processing this session: Some of the data we present may not be correct". And the scout log file shows:
Log file created: 2014/11/20 15:35:08
11/20/2014 15:35:08.395 Scout starting up.
11/20/2014 15:35:08.471 InitDNSService failed
11/20/2014 15:36:47.055 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [100000,200000] is greated than its parent
11/20/2014 15:36:47.057 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [200000,300000] is greated than its parent
11/20/2014 15:36:47.058 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [300000,400000] is greated than its parent
11/20/2014 15:36:47.058 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [400000,500000] is greated than its parent
11/20/2014 15:36:47.061 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [500000,600000] is greated than its parent
11/20/2014 15:36:47.062 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [600000,700000] is greated than its parent
11/20/2014 15:36:47.063 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [700000,800000] is greated than its parent
11/20/2014 15:36:47.063 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [800000,900000] is greated than its parent
11/20/2014 15:36:47.064 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [900000,1000000] is greated than its parent
11/20/2014 15:36:47.064 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1000000,1100000] is greated than its parent
11/20/2014 15:36:47.064 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1100000,1200000] is greated than its parent
11/20/2014 15:36:47.065 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1200000,1300000] is greated than its parent
11/20/2014 15:36:47.065 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1300000,1400000] is greated than its parent
11/20/2014 15:36:47.065 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1400000,1500000] is greated than its parent
11/20/2014 15:36:47.066 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1500000,1600000] is greated than its parent
11/20/2014 15:36:47.066 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1600000,1700000] is greated than its parent
11/20/2014 15:36:47.066 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1700000,1800000] is greated than its parent
11/20/2014 15:36:47.067 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1800000,1900000] is greated than its parent
11/20/2014 15:36:47.067 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [1900000,2000000] is greated than its parent
11/20/2014 15:36:47.067 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2000000,2100000] is greated than its parent
11/20/2014 15:36:47.068 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2100000,2200000] is greated than its parent
11/20/2014 15:36:47.068 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2200000,2300000] is greated than its parent
11/20/2014 15:36:47.068 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2300000,2400000] is greated than its parent
11/20/2014 15:36:47.069 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2400000,2500000] is greated than its parent
11/20/2014 15:36:47.069 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2500000,2600000] is greated than its parent
11/20/2014 15:36:47.069 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2600000,2700000] is greated than its parent
11/20/2014 15:36:47.070 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2700000,2800000] is greated than its parent
11/20/2014 15:36:47.070 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2800000,2900000] is greated than its parent
11/20/2014 15:36:47.070 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [2900000,3000000] is greated than its parent
11/20/2014 15:36:47.071 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [3000000,3100000] is greated than its parent
11/20/2014 15:36:47.071 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [3100000,3200000] is greated than its parent
11/20/2014 15:46:30.931 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [100000,200000] is greated than its parent
11/20/2014 15:46:30.933 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [200000,300000] is greated than its parent
11/20/2014 15:46:30.936 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [300000,400000] is greated than its parent
11/20/2014 15:46:30.937 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [400000,500000] is greated than its parent
11/20/2014 15:46:30.937 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [500000,600000] is greated than its parent
11/20/2014 15:46:30.937 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [600000,700000] is greated than its parent
11/20/2014 15:46:30.937 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [700000,800000] is greated than its parent
11/20/2014 15:46:30.938 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [800000,900000] is greated than its parent
11/20/2014 15:46:30.938 <2896> <telemetryCore.Query> <1> Incorrect data: Memory category 7 for frame stats query over time interval [900000,1000000] is greated than its parent
I run flash code directly on flash_player_11_7_sa.exe. I think the problem may have something to do with ActionScript Sampler of scout, because I can get the correct profiling information without ActionScript Sampler.
But I don't know what the information in the log file means.

We are using Microsoft SQL Server 2008 . but it's well with MySQL & JBoss

Help required for file to Multi file Blog

Hi,
I'm working with following blog for file to multi file scenario...
"/people/jin.shin/blog/2006/02/07/multi-mapping-without-bpm--yes-it146s-possible
But in Configuration part, I'm unable to find ..TITLE_IDTYPE option for RB_SPLIT.. Screen, there is only two options are available one is Standard and another one is Extended ???!!!
Note : we are using SP16
So, How can I go ahead to complete this scenario ??!!!
Can anybody help me out to complete this file to mulfile scenario without BPM.
Thanks.,
Esha

Hi Esha,
the names seem to have changed since SP14 (the version of this blog entry).
I did a multi-mapping with SP15 once, using "Extended".
Kind regards,
Dennis

Problem Loading pdf using AxInterop.AcroPDFLib (file locked)

Hi,
I'm currently using AxInterop.AcroPDFLib with C# in a winform application.
Purpose is to display PDF files in my application. Thoose files are located on a share directory.
Everything works fine, the program is installed on multiple pc that display the file at the same time without problem.
BUT, when i open the same PDF file on a computer using acrobat pdf reader, i can't open the same file using the AxInterop.AcroPDFLib dll.
After some deep search on the files, on the servers, ... it seems to be linked with file locking.
Let me explain :
when the file is opened by the AxInterop.AcroPDFLib dll, no lock appears on the server ( share directory ) or at least it appears and is released in the same second.
when i open the PDF file via acrobat reader, the lock is set, and remain until i close the file in the pdf reader.
which means that when someone open a file, all the computer using the AxInterop.AcroPDFLib ares blocked and can't start reading the file.
Is there a way to configure the AxInterop.AcroPDFLib to allow reading on locked files (locked for reading)
Thanks
Mike

I have tried with both Reader 8.xx and 9.xx
Same behavior.
After deep investigation, i have found that when i open a file using the reader, this file is marked as opened for "read" on the server, and in that case, the ocx can't open the file...
when the file is close by the reader, the lock is removed and the ocx could open the document.
I found also that when the ocx open the file, this file is not locked on the server, which allows other computers with the same ocx to open the same file on multiple workstation (which is the behavior i was expecting).
thus why is the ocx blocked when a file lock is present on the server for the file to be opened by the ocx...
Mike

Help! File locking/multi-thread/instance problem!

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