public MutableBlobMetadata apply(AtmosObject from) { if (from == null) return null; MutableBlobMetadata to = new MutableBlobMetadataImpl(); to.setId(from.getSystemMetadata().getObjectID()); to.setLastModified(from.getSystemMetadata().getLastUserDataModification()); HttpUtils.copy(from.getContentMetadata(), to.getContentMetadata()); to.setName(objectName.apply(from)); if (from.getSystemMetadata().getType() == FileType.DIRECTORY) { to.setType(StorageType.FOLDER); } else { to.setType(StorageType.BLOB); } Map<String, String> lowerKeyMetadata = Maps.newHashMap(); for (Entry<String, String> entry : from.getUserMetadata().getMetadata().entrySet()) { String key = entry.getKey().toLowerCase(); if (!systemMetadata.contains(key)) lowerKeyMetadata.put(key, entry.getValue()); } to.setUserMetadata(lowerKeyMetadata); return to; }