// write temporary SSTables, but don't register them
Set<String> content = new HashSet<>();
content.add("test");
content.add("test2");
content.add("test3");
SSTableReader sstable = new SSTableUtils(KEYSPACE1, CF_STANDARD).prepare().write(content);
String keyspaceName = sstable.getKeyspaceName();
String cfname = sstable.getColumnFamilyName();
content = new HashSet<>();
content.add("transfer1");