@@ -0,0 +1,668 @@
+package alluxio.client.file;%0A%0A%0Aimport alluxio.heartbeat.HeartbeatExecutor;%0A%0A/**%0A * Session client that sends periodic heartbeats to the file system worker in order to preserve%0A * its state on the worker.%0A */%0Apublic class FileSystemWorkerClientHeartbeatExecutor implements HeartbeatExecutor %7B%0A  private final FileSystemWorkerClient mFileSystemWorkerClient;%0A%0A  public FileSystemWorkerClientHeartbeatExecutor(FileSystemWorkerClient client) %7B%0A    mFileSystemWorkerClient = client;%0A  %7D%0A%0A  @Override%0A  public void heartbeat() %7B%0A    mFileSystemWorkerClient.periodicHeartbeat();%0A  %7D%0A%0A  @Override%0A  public void close() %7B%0A    // Not responsible for cleaning up the client%0A  %7D%0A%7D%0A

Add fs worker client heartbeat executor.