question: static ZoneOffsetTransitionRule readExternal ( DataInput in ) throws IOException { int data = in . readInt ( ) ; Month month = Month . of ( data > > > 28 ) ; int dom = ( ( data & ( 63 << 22 ) ) > > > 22 ) - 32 ; int dowByte = ( data & ( 7 << 19 ) ) > > > 19 ; DayOfWeek dow = dowByte == 0 ? null : DayOfWeek . of ( dowByte ) ; int timeByte = ( data & ( 31 << 14 ) ) > > > 14 ; TimeDefinition defn = TimeDefinition . values ( ) [ ( data & ( 3 << 12 ) ) > > > 12 ] ; int stdByte = ( data & ( 255 << 4 ) ) > > > 4 ; int beforeByte = ( data & ( 3 << 2 ) ) > > > 2 ; int afterByte = ( data & 3 ) ; LocalTime time = ( timeByte == 31 ? LocalTime . ofSecondOfDay ( in . readInt ( ) ) : LocalTime . of ( timeByte % 24 , 0 ) ) ; ZoneOffset std = ( stdByte == 255 ? ZoneOffset . ofTotalSeconds ( in . readInt ( ) ) : ZoneOffset . ofTotalSeconds ( ( stdByte - 128 ) * 900 ) ) ; ZoneOffset before = ( beforeByte == 3 ? ZoneOffset . ofTotalSeconds ( in . readInt ( ) ) : ZoneOffset . ofTotalSeconds ( std . getTotalSeconds ( ) + beforeByte * 1800 ) ) ; ZoneOffset after = ( afterByte == 3 ? ZoneOffset . ofTotalSeconds ( in . readInt ( ) ) : ZoneOffset . ofTotalSeconds ( std . getTotalSeconds ( ) + afterByte * 1800 ) ) ; return ZoneOffsetTransitionRule . of ( month , dom , dow , time , timeByte == 24 , defn , std , before , after ) ; }
target:  Reads the state from the stream.