factory method to create a keyvaluepartitionreader given the alluxiouri of akey-value partition . concode_field_sep PlaceHolder placeHolder concode_field_sep int size concode_elem_sep byte[] get concode_elem_sep ByteBuffer get
KeyValuePartitionReader function ( AlluxioURI arg0 ) { Preconditions . checkNotNull ( arg0 ) ; FileSystem loc0 = FileSystem . Factory . get ( ) ; List < Long > loc1 = loc0 . getStatus ( arg0 ) . getBlockIds ( ) ; long loc2 = loc1 . get ( 0 ) ; return new BaseKeyValuePartitionReader ( loc2 ) ; }