question: return content in a directory/file , possibly recursively . concode_field_sep RowFileContentsIteratorFactory rowFileContentsIteratorFactory concode_elem_sep FileSystemAccess fileSystemAccess concode_field_sep StreamingOutput getFile concode_elem_sep boolean isDir
target: HdfsListing function ( final String arg0 , final boolean arg1 , final boolean arg2 ) { return new HdfsListing ( fileSystemAccess . get ( ) , new Path ( arg0 ) , arg1 , rowFileContentsIteratorFactory , arg2 ) ; }