package org.kodejava.example.io;
import java.io.IOException;
import java.nio.file.*;
import static java.nio.file.StandardWatchEventKinds.*;
public class WatchServiceGetFilename {
public static void main(String[] args) {
try {
// Create a WatchService and register the logDir path with the
// WatchService for ENTRY_CREATE.
WatchService watcher = FileSystems.getDefault().newWatchService();
Path logDir = Paths.get("/Users/kodejava/temp");
logDir.register(watcher, ENTRY_CREATE);
while (true) {
WatchKey key;
try {
key = watcher.take();
} catch (InterruptedException e) {
return;
}
for (WatchEvent<?> event : key.pollEvents()) {
if (event.kind() == ENTRY_CREATE) {
// Get the name of created file.
WatchEvent<Path> ev = cast(event);
Path filename = ev.context();
System.out.printf("A new file %s was created.%n",
filename.getFileName());
}
}
key.reset();
}
} catch (IOException e) {
e.printStackTrace();
}
}
@SuppressWarnings("unchecked")
private static <T> WatchEvent<T> cast(WatchEvent<?> event) {
return (WatchEvent<T>)event;
}
}
Wayan Saryada
Founder at Kode Java Org
I am a programmer, a runner, a recreational diver, currently live in the island of Bali, Indonesia. Mostly programming in Java, Spring Framework, Hibernate / JPA. If these posts help, you can support me, buy me a cup of coffee or tea. Thank you 🥳
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How to get the location of the filename when monitoring a folder and its subfolders. Please help with sample code to do the same.
Hello Amrita,
Use the following snippet to get the full location of the file name.
Thanks Wayan and Amrita…was looking for the full path when you set watch on multiple paths