/**
* Remove the listener from the notification list.
*
* @param listener the listener to be removed.
*/
public void removeFileChangeListener(FileChangeListener listener, String fileName) {
FileMonitorTask task = (FileMonitorTask) timerTasks.remove(fileName + listener.hashCode());
if (task != null) {
task.cancel();
}
}
/**
* Start monitoring a file.
*
* @param listener listener to notify when the file changed.
* @param fileName name of the file to monitor.
* @param period polling period in milliseconds.
*/
public void addFileChangeListener(FileChangeListener listener, String fileName, long period) {
removeFileChangeListener(listener, fileName);
FileMonitorTask task = new FileMonitorTask(listener, fileName);
timerTasks.put(fileName + listener.hashCode(), task);
timer.schedule(task, period, period);
}
