Check if file is opened
is there any way in java to check if a file is opened and closed?
i found this on web but doesnt work, seems that it is a right approach..dont know where goes wrong..
import java.io.*;
import java.nio.channels.*;
publicclass FileStatusChecking{
publicstaticvoid main(String[] args){
try{
// Get a file channel for the file
File file =new File("empty.txt");
FileChannel channel =new RandomAccessFile(file,"rw").getChannel();
// Use the file channel to create a lock on the file.
// This method blocks until it can retrieve the lock.
FileLock lock = channel.lock();
// Try acquiring the lock without blocking. This method returns
// null or throws an exception if the file is already locked.
try{
lock = channel.tryLock();
System.out.println("FILE CLOSED");
}catch (OverlappingFileLockException e){
// File is already locked in this thread or virtual machine
System.out.println("FILE OPENING");
}
// Release the lock
lock.release();
// Close the file
channel.close();
}catch (Exception e){
}
}
}
