watchservice

import java.io.*; import java.nio.file.*; public class Tmp { public static void main(String [] args) throws IOException { int count = 0; Path path = Paths.get("C:\\tmp\\"); WatchService ws = null; try { ws = FileSystems.getDefault().newWatchService(); path.register(ws, StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE, StandardWatchEventKinds.ENTRY_MODIFY, StandardWatchEventKinds.OVERFLOW); } catch (IOException ioe) { ioe.printStackTrace(); } while(true) { WatchKey key = null; try { key = ws.take(); } catch(InterruptedException ie) { ie.printStackTrace(); } for

I want to watch some directory for changes and her subdirectories. I tried to do this with WatchService but I can't know from which directory the file was changed. How can I retrieve the full path from the WatchEvent ? patrickmdnet Generally you provide the directory name of the file when starting the watchservice. Here is a tutorial demonstrating how that works: http://blogs.oracle.com/thejavatutorials/entry/watching_a_directory_for_changes From the tutorial: Path dir = ...; try { WatchKey key = dir.register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY); }[.....] when you catch a

This code works fine in Linux but not in Windows 7: to get file contents update I have to click on the output file. Where is the trick? I am using Windows 7 prof, NetBeans IDE 8.0 RC1 (Build 201402242200) updated to version NetBeans 8.0 Patch 1.1, JDK 1.8 package watchfilethreadmod; import java.io.FileNotFoundException; import java.io.IOException; import java.io.RandomAccessFile; import java.nio.file.Files; import static java.nio.file.LinkOption.NOFOLLOW_LINKS; import java.nio.file.Path; import java.nio.file.Paths; import static java.nio.file.StandardWatchEventKinds.*; import java.nio.file

I've tried to copy&paste a very small file into a folder which is observed by a watch service. The first time works great, but on all following copy&paste actions, i get an exception that another process handles the file already. With experiments I've found out that my service is informed when Windows creates the file and not when its content is copied. If I lock the file, Windows isn't able to copy any data and the file is empty. On the other hand, if I move the file into the directory, everything works fine. Is that a bug from Windows? I wasn't able to test it on a mac or Linux workstation.

I am using watchKey to listen for a file change in a particular folder. Path _directotyToWatch = Paths.get("E:/Raja"); WatchService watcherSvc = FileSystems.getDefault().newWatchService(); WatchKey watchKey = _directotyToWatch.register(watcherSvc, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY); while (true) { watchKey=watcherSvc.take(); for (WatchEvent<?> event: watchKey.pollEvents()) { WatchEvent<Path> watchEvent = castEvent(event); System.out.println(event.kind().name().toString() + " " + _directotyToWatch.resolve(watchEvent.context())); watchKey.reset(); } } It working fine for me. If I modify a