void (VirtualFile file, int contentId) { if (contentId == 0) { if (LOG.isDebugEnabled()) { LOG.debug("saveContentReference without content for file = " + file); } return; // content not loaded yet, nothing to save } LOG.assertTrue(contentId > 0, contentId); if (LOG.isDebugEnabled()) { LOG.debug("saveContentReference file = " + file + ", id = " + contentId); } long stamp = file.getTimeStamp(); try { try (DataOutputStream contentStream = ACQUIRED_CONTENT_ATTR.writeFileAttribute(file)) { contentStream.writeInt(contentId); } try (DataOutputStream tsStream = LAST_TS_ATTR.writeFileAttribute(file)) { tsStream.writeLong(stamp); } file.putUserData(LAST_TS_KEY, stamp); } catch (IOException e) { LOG.info(e); } }