Cheking dir

[Yaroslav Chinskiy]

How can I constantly check dir for new files?
I tried following:

import java.util.*;
import java.io.*;
public class ObservableDirReader
extends Observable
implements Runnable{
private String dirName;
private File dir;
private boolean shouldRun = true;
public ObservableDirReader(String dirName) {
this.dirName = dirName;
try{
init();
}catch(Exception e){
new ExceptionHandler(e);
}
}// end constructor
private void init() throws Exception{
dir = new File(dirName);
if(!dir.isDirectory()){
throw new FileNotFoundException(dirName + " is not a directory.");
}
}// end init
public void abort(){
if(shouldRun){
shouldRun = false;
}
}// end abort
public void run(){
File[] currentFileList = null;
File[] tempFileList = null;
try{
while(shouldRun){
currentFileList = dir.listFiles();
if(currentFileList.length == 0 | | tempFileList.equals(currentFileList)){
Thread.currentThread().sleep(5000);
}else{
for(int i = 0; i < currentFileList.length;i++){
if(currentFileList[i].isFile()){
//test
System.out.println(currentFileList[i].getName());
//
this.setChanged();
this.notifyObservers(currentFileList[i].getName());
}
}// end for
}// end if
tempFileList = currentFileList;
}// end while
}catch(Exception e){
new MyExceptionHandler(e);
}// end try
}// end run
}

But there must be better way. Do you know how?
Thank you.

[This message has been edited by Peter Tran (edited March 07, 2001).]