This is very important... It concerns topics of threads and sockets...

Question

Hey...
This has been very complicating for me.
I have tried so many solutions for the past
few days but i have been stuck here with no
no things to think of. I would really appreciate if someone
can help me out in doing this or any suggestions.
Now this is the case..
My program runs a frame with an "OPEN" menuitem
a connect button ,upload button, a porgress bar and a progress text label near it.... In the open u choose a file that u want to upload. In the connect u choose the IP address that u need to Upload the chosen file to. And in the upload, u start uploading u're file. Now i am using sockets to connect through my machine and the chosen IP address. The progress bar should note the process of uploading and accordingly get's updated...The progress text label should either say "No String" or "Uploading" when i'm uploading as well as blinking on and off....
Now i got through almost all of the stuff above, i'm only stuck in updating the progress bar and the text. To make things more clearer i will include the upgrade method that i do the connection and start sending the stuff. In there i've also created a thread to update the bar but for now, i only set the value to 10.... The thing is it never updates the bar unless the whole process of downloading is done. The file chosen to be uploaded is about 1MG and it takes about 40secs to send the whole file to another machine.....
I've also tried using seperate threads in different classes
but it never worked..
NOW THE PROGRESS BAR HAS BEEN DECLARED IN THE
PROGRAM AS JProgressBar. What i'm suppose to do is
read the file in 29 bytes. Then send 15 and then 14.
Once i'm less than 29 bytes i send either 15 or 14 or
the remainder... The sendMsg method is the one that
handles sending the bytes and receiving the
acknowledgment. The socket is created when i hit the
connect button and choose the IP address...
Please any extra suggestion is appreciated.
/CODE/
public void UpgradeActionPerformed(ActionEvent e)
final Runnable doprogressValue = new Runnable()
public void run()
jProgressBar.setValue(10);
Thread appThread = new Thread()
public void run()
try
SwingUtilities.invokeAndWait(doprogressValue);
catch (Exception ex)
ex.printStackTrace();
try
DataInputStream inputStream = new DataInputStream(new FileInputStream(fileName));
//Send Set to DownLoad Moad message
byte[] msg = new byte[MaxMessageSize];
msg[0]=(byte)((SystemSpecific<<4) | (DataCounter));
msg[1]=FirmWareDNLMode;
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
//Set Progress Bar Max & Min values
jProgressBar.setMinimum(0);
jProgressBar.setMaximum(inputStream.available());
while((inputStream.available()) >= MaxMessageRead)
bytesRead = inputStream.read(mainBuffer,offset,MaxMessageRead);
//Send First 15 Bytes
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
//Send Next 14 Bytes
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
//Send The 15 Bytes Left
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
//Send The 14 Bytes Left
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
//Send The Remainder Bytes
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
//Send Set to Reset Mode
returnVal=sendMsg(msg, rcvMsg);
if(returnVal == false)
return;
inputStream.close();
socket.close();
connectionStatus.setText("Not Connected");
fileStatus.setText("Loading completed");
upgradeButton.setEnabled(false);
connectButton.setEnabled(false);
catch(NullPointerException null_ex)
JOptionPane.showMessageDialog(null,"Connection Not Created","Error",JOptionPane.ERROR_MESSAGE);
catch(IOException IO_ex)
IO_ex.printStackTrace();
appThread.start();
/CODE/

Answer 1

Yeah... i dide finally figure out a way doing it.... This is how i did it....
/CODE/
// This is all going to be under the upload action...
{//beggining of the uplaod action
finally Runnable doProgressVal = new Runnable()
public void run()
time.start();//This is an instance of class timer that i
// created. It actually sets the value of
// of the progressBar to the latest upload
Thread mainThread = new Thread()
public void run()
SwingUtilities.invokeAndWait(doprogressVal);
do the uploading of the file to the specified server
mainThread.start
}//end of upload action
/CODE/
Hope this help if u want it for something. It works fine..