watchservice Questions

3

I have Java program monitoring a remote folder mounted in my local server. But it is not detecting any changes / modification whenever something changed in the remote folder. It is working fine if...
Ibo asked 22/2, 2018 at 3:18

4

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(); WatchKe...
Dealt asked 17/5, 2013 at 14:22

8

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When I'm trying to register a file instead of a directory java.nio.file.NotDirectoryException is thrown. Can I listen for a single file change, not the whole directory?
Alpaca asked 27/4, 2013 at 10:57

4

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I'm writing a Spring-Boot application to monitor a directory and process files that are being added to it. I register the directory with WatchService in a configuration class: @Configuration publi...
Vincenty asked 2/12, 2016 at 20:55

15

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The javadoc for StandardWatchEventKinds.ENTRY_MODIFY says: Directory entry modified. When a directory is registered for this event then the WatchKey is queued when it is observed that an entry ...
Pestilential asked 27/5, 2013 at 17:23

4

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I followed the Watching a Directory for Changes Java7 nio2 tutorial to recursively monitor the entire contents of a directory using the code sample WatchDir.java. The code looks like this: // Ge...
Orangeman asked 20/3, 2013 at 17:52

2

I am using this WatchService example from Oracle: import java.nio.file.*; import static java.nio.file.StandardWatchEventKinds.*; import static java.nio.file.LinkOption.*; import java.nio.file.attr...
Caesaria asked 25/8, 2016 at 14:15

2

I'm having an issue with WatchService. Here is a snippet of my code: public void watch(){ //define a folder root Path myDir = Paths.get(rootDir+"InputFiles/"+dirName+"/request"); try { Watch...
Subplot asked 22/4, 2015 at 15:56

4

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 = ...
Baziotes asked 21/4, 2013 at 16:44

1

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I need to develop an application that will process csv files as soon as the files are created in a predefined directory. Huge number of incoming files is expected. I have seen applications using A...
Commodity asked 1/10, 2015 at 12:14

3

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I´m trying to watch a specific folder for changes, and then if any addition/edition/removal happens inside of it, I need to get the change type of all files in that folder and its subfolders. I'm u...
Implicit asked 9/9, 2013 at 15:1

1

Is it possible to set the JAVA NIO WatchService on files in the /sys/class/gpio/gpioX device tree to supervise changes there ? It would be nice idea to detect changes on the GPIO files (i.e. the G...
Announce asked 12/5, 2015 at 12:21

2

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I have a watch service watching a directory. Once files are created, I'm processing the directory and updating a tree view. This works fine on ENTRY_DELETE, but sometimes (not always) when a Watch...
Seychelles asked 8/1, 2016 at 7:40

2

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 20140...
Mancilla asked 19/6, 2014 at 12:39

2

I see a strange behaviour ( not sure i this is expected behaviour ) using java.nio.file.WatchService. The problem is I have a folder registered with WatchService. When I copy a new file into th...
Trueblue asked 17/11, 2015 at 9:41

1

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I've been playing around with the java.nio.file.WatchService and noticed that the Paths returned from WatchEvent.context() does not return correct .toAbsolutePath(). Here is an example application:...
Josephinajosephine asked 21/9, 2015 at 9:10

2

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 ...
Deification asked 9/4, 2011 at 22:4

5

I implemented a file watcher but I noticed that java nio file watcher doesn't generate events for files being copied on mapped drives. For instance, I've run the file watcher on Unix to watch a loc...
Cylinder asked 12/12, 2011 at 15:11

2

Below is a short simple example of using a WatchService to keep data in sync with a file. My question is how to reliably test the code. The test fails occasionally, probably because of a race condi...
Normand asked 18/4, 2015 at 16:31

1

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I tried to implement simple renaming in java WatchService. My assumption is: when files are renamed, three operations are performed Deletion of file xxx creation of file yyy modification of file...
Witness asked 31/3, 2015 at 12:5

1

I've an application in which when a file is added to the directory, WatchService detects the file and the file is added to a file list for further processing. This is my code public void run() { ...
Asthenopia asked 19/11, 2012 at 5:24

1

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I want to use the Java WatchService to listen for changes on a big number of directories (many hundreds of thousands) but I don't know if it is appropriate for such numbers of watched directories. ...
Peralta asked 14/12, 2014 at 9:37

3

The project I'm working has been using Java 6 and jpathwatch (.95) and is now upgrading to Java 7. Currently on Windows 7 and 2008 Server. I'm refactoring areas of code to use the new Java 7 NIO an...
Guardroom asked 2/10, 2013 at 15:1

1

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I have a file with name foo.txt. This file contains some text. I want to achieve following functionality: I launch program write something to the file (for example add one row: new string in foo....
Notability asked 19/6, 2014 at 7:55

1

I want to use Java 7 WatchService to monitor /proc folder, but that's not working (changes made in the folder are not reported). I've tested other folders such as /home/user/Desktop and /tmp and it...
Benisch asked 26/2, 2014 at 13:57

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