/** Register the given directory with the WatchService */
private void register(Path dir) throws IOException {
WatchKey key = dir.register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
if (trace) {
Path prev = keys.get(key);
if (prev == null) {
System.out.format("register: %s\n", dir);
} else {
if (!dir.equals(prev)) {
System.out.format("update: %s -> %s\n", prev, dir);
}
}
}
keys.put(key, dir);
}
public void downloadFile(String relPath) {
VOSync.debug("Downloading file from storage: " + relPath);
Path filePath = FileSystems.getDefault().getPath(startDir.toString(), relPath.substring(1));
try {
WatchKey key =
filePath.getParent().register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
keys.remove(key);
key.cancel();
FileOutputStream outp = new FileOutputStream(filePath.toFile());
DropboxFileInfo info = api.getFile(relPath, null, outp, null);
outp.close();
key = filePath.getParent().register(watcher, ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY);
keys.put(key, filePath.getParent());
MetaHandler.setFile(relPath, filePath.toFile(), info.getMetadata().rev);
} catch (IOException ex) {
logger.error("Error downloading file " + relPath + ": " + ex.getMessage());
} catch (DropboxException ex) {
ex.printStackTrace();
logger.error("Error downloading file " + relPath + ": " + ex.getMessage());
}
}
/** Регистрация директории для WatchService. */
private void register(Path dir) throws IOException {
// Решистрируем ключи событий, в начальной версии не отслеживаем
// ENTRY_DELETE, ENTRY_MODIFY
WatchKey key = dir.register(watcher, ENTRY_CREATE);
keys.put(key, dir);
}