A Java framework that watches external processes for liveliness and executes arbitrary commands when they terminate.
The most common use case is embedding the process-watcher into an application that should terminate itself when the an external process terminates.
public static void main(String... args) {
Thread t = new Thread(() -> {
String pid = "61257";
ProcessWatcher watcher = new ProcessWatcher();
CountDownLatch signal = new CountDownLatch(1);
watcher.watch(pid, () -> {
System.out.println("The watched process has terminated");
signal.countDown();
});
});
t.setDaemon(true);
t.start();
// TODO: add other actions
try {
signal.await();
}
catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
