@Override public void endWindow() { if (currentWindowId > idempotentStorageManager.getLargestRecoveryWindow()) { try { idempotentStorageManager.save(currentWindowRecoveryState, operatorId, currentWindowId); } catch (IOException e) { throw new RuntimeException("saving recovery", e); } } currentWindowRecoveryState.clear(); if (context != null) { pendingFileCount.setValue(pendingFiles.size() + failedFiles.size() + unfinishedFiles.size()); if (currentFile != null) { pendingFileCount.increment(); } context.setCounters(fileCounters); } }