File Monitoring Using Java API

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======================WatchDog.java======================================

 package net.codejava.io;

import static java.nio.file.StandardWatchEventKinds.ENTRY_CREATE;
import static java.nio.file.StandardWatchEventKinds.ENTRY_DELETE;
import static java.nio.file.StandardWatchEventKinds.ENTRY_MODIFY;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;

/**
 * 
 * @author anand
 *
 */
public class WatchDog {

    public static void main(String[] args) {
        try {
            WatchService watcher = FileSystems.getDefault().newWatchService();
            Path dir = Paths.get("F:\\video s\\south indian");
            dir.register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
             
            System.out.println("Registered  dir:===>" + dir.getFileName());
             
            while (true) {
                WatchKey key;
                try {
                    key = watcher.take();
                } catch (InterruptedException ex) {
                    return;
                }
                 
                for (WatchEvent<?> event : key.pollEvents()) {
                    WatchEvent.Kind<?> kind = event.kind();
                     
                    @SuppressWarnings("unchecked")
                    WatchEvent<Path> ev = (WatchEvent<Path>) event;
                    Path fileName = ev.context();
                     
                    System.out.println(kind.name() + ": " + fileName);
                     
                    if (kind == ENTRY_MODIFY &&
                            fileName.toString().equals("Test.java")) {
                        System.out.println(" file has changed!!!======>");
                    }
                }
                 
                boolean valid = key.reset();
                if (!valid) {
                    break;
                }
            }
             
        } catch (IOException ex) {
            System.err.println(ex);
        }
    }
}


Please Find Snapshot For Monitering O/p Console 
Any help mail on :ananddwivedi92@gmail.com


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