/** {@inheritDoc} */
@Override
public void postInit() {
super.postInit();
synchronized (lock) {
if (fileAlterationMonitor == null) {
fileWatchListener = new FileWatchListener(ConfigurationUtilities.getInstance());
fileAlterationMonitor = new FileAlterationMonitor();
File confDir = getFilesystemConfiguration().getConfigurationDirectory();
FileAlterationObserver observer = new FileAlterationObserver(confDir);
observer.addListener(getFileWatchListener());
fileAlterationMonitor.addObserver(observer);
try {
fileAlterationMonitor.start();
} catch (Exception exc) {
logger.error("Could not start file monitor", exc);
}
}
}
}
/** {@inheritDoc} */
@Override
public void preDestroy() {
super.preDestroy();
synchronized (lock) {
try {
if (fileAlterationMonitor != null) fileAlterationMonitor.stop(10);
if (fileWatchListener != null) fileWatchListener.clear();
fileAlterationMonitor = null;
fileWatchListener = null;
} catch (Exception exc) {
logger.error("Could not stop file monitor", exc);
}
}
}
/**
* 从alterationMonitor中删除fileObserver
*
* @param fileObserver
*/
private void removeObserver(SeafileObserver fileObserver) {
alterationMonitor.removeObserver(fileObserver.getAlterationObserver());
}
/**
* 将fileObserver加入到alterationMonitor中
*
* @param fileObserver
*/
private void addObserver(SeafileObserver fileObserver) {
alterationMonitor.addObserver(fileObserver.getAlterationObserver());
}
public void stop() throws Exception {
alterationMonitor.stop();
}
private void start() throws Exception {
if (!started) {
alterationMonitor.start();
started = true;
}
}