// Store store = new RamStore(shardId, settings);
Store store = new ByteBufferStore(shardId, settings, null, new ByteBufferCache(settings));
// Store store = new NioFsStore(shardId, settings);
store.deleteContent();
ThreadPool threadPool = new ThreadPool();
SnapshotDeletionPolicy deletionPolicy = new SnapshotDeletionPolicy(new KeepOnlyLastDeletionPolicy(shardId, settings));
Engine engine = new RobinEngine(shardId, settings, new ThreadPool(), new IndexSettingsService(shardId.index(), settings), store, deletionPolicy, new FsTranslog(shardId, EMPTY_SETTINGS, new File("work/fs-translog")), new LogByteSizeMergePolicyProvider(store, new IndexSettingsService(shardId.index(), EMPTY_SETTINGS)),
new ConcurrentMergeSchedulerProvider(shardId, settings), new AnalysisService(shardId.index()), new SimilarityService(shardId.index()), new NoneBloomCache(shardId.index()));