question: @ Override Map < String , Object > extractFields ( String line ) { if ( ! initialized ) { init ( ) ; initialized = true ; } String [ ] values = fixedWidthParser . parseLine ( line ) ; if ( hasHeader && Arrays . deepEquals ( values , header ) ) { return null ; } Map < String , Object > map = Maps . newHashMap ( ) ; int i = 0 ; for ( FixedWidthField field : fields ) { map . put ( field . getName ( ) , getValue ( field , values [ i ++ ] ) ) ; } return map ; }
target:  Extracts the fields from a fixed width record and returns a map containing field names and values