/** Creates a new instance. */
 public DfsFileImport() {
   File cmd = ConfigurationLoader.getLocalScriptPath(Constants.PATH_LOCAL_CACHE_BUILD);
   this.cacheBuildCommand = cmd.getAbsolutePath();
   int parallel =
       Integer.parseInt(
           ConfigurationLoader.getProperty(Constants.PROP_KEY_CACHE_BUILDER_PARALLEL));
   LOG.debugMessage("Building a cache builder with {0} threads", parallel);
   this.executor = Executors.newFixedThreadPool(parallel);
 }