question: private void analyzeSeedDocument ( Document inputDocument , Map < String , List < String [ ] > > fieldName2tokensArray , Map < String , Float > fieldName2boost ) throws IOException { for ( int i = 0 ; i < textFieldNames . length ; i ++ ) { String fieldName = textFieldNames [ i ] ; float boost = 1 ; List < String [ ] > tokenizedValues = new LinkedList < > ( ) ; if ( fieldName . contains ( "^" ) ) { String [ ] field2boost = fieldName . split ( "\\^" ) ; fieldName = field2boost [ 0 ] ; boost = Float . parseFloat ( field2boost [ 1 ] ) ; } IndexableField [ ] fieldValues = inputDocument . getFields ( fieldName ) ; for ( IndexableField fieldValue : fieldValues ) { TokenStream fieldTokens = fieldValue . tokenStream ( field2analyzer . get ( fieldName ) , null ) ; String [ ] fieldTokensArray = getTokenArray ( fieldTokens ) ; tokenizedValues . add ( fieldTokensArray ) ; } fieldName2tokensArray . put ( fieldName , tokenizedValues ) ; fieldName2boost . put ( fieldName , boost ) ; textFieldNames [ i ] = fieldName ; } }
target:  This methods performs the analysis for the seed document and extract the boosts if present. This is done only one time for the Seed Document.