Logging for Multithread Server

Question

Hi Folks,
I am trying to implement a simple logger for my Socket server and I have the following code working.
public synchronized static void log(String msg) {
    DataOutputStream dos = null;
     Date dateValue;
     String dateTempString=new String();
    try {
          dateValue=new Date();
          SimpleDateFormat formatter = new SimpleDateFormat ("dd-MM//hh-mm-ss");
          dateTempString = formatter.format(dateValue);
      dos = new DataOutputStream(new FileOutputStream("log.txt", true));
          dos.writeBytes(dateTempString+"\n"+msg+"\n");
          dos.close();
    } catch (FileNotFoundException ex) {
          } catch (IOException ex) {
  }Whenever I write something to console, I also call this function with the appropriate message.
My question is that How to implement it for a multithreaded Server?
In the log.txt file..there would be no way of knowing that which message belonged to which thread?
Any Pointers here ?
And Also, Is there a better way to do this simply?
Thanks a lot to all you guys in advance...Looking forward to some good input.

Answer 1

Hi
dos = new DataOutputStream(new FileOutputStream("log.txt", true));
dos.writeBytes(dateTempString+"\n"+msg+"\n");
Can you change the second line to the following.
dos.writeBytes(Thread.currentThread().getName + "\n"+dateTempString+"\n"+msg+"\n");
Make sure that each thread that you create has a unique name.
HTH
VJ