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annotate src/goodjava/lucene/queryparser/SynonymParser.java @ 1831:8f9ae295bf6a default tip

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 26 Sep 2024 15:07:45 -0600
parents b04b8fc5f4f4
children
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6b6c11c9164e goodjava.lucene
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1 package goodjava.lucene.queryparser;
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3 import java.util.Map;
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4 import org.apache.lucene.search.Query;
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5 import org.apache.lucene.search.BooleanQuery;
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6 import org.apache.lucene.search.BooleanClause;
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7 import org.apache.lucene.search.SortField;
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8 import goodjava.parser.ParseException;
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11 public class SynonymParser implements FieldParser {
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12 private final FieldParser fp;
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13 private final Map<String,String[]> synonymMap;
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15 public SynonymParser(FieldParser fp,Map<String,String[]> synonymMap) {
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16 this.fp = fp;
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17 this.synonymMap = synonymMap;
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18 }
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20 protected String[] getSynonyms(String query) {
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21 return synonymMap.get(query);
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22 }
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23
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24 public Query getQuery(GoodQueryParser qp,String field,String query) throws ParseException {
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25 String[] synonyms = getSynonyms(query);
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26 if( synonyms == null )
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27 return fp.getQuery(qp,field,query);
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28 BooleanQuery bq = new BooleanQuery();
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29 bq.add( fp.getQuery(qp,field,query), BooleanClause.Occur.SHOULD );
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30 for( String s : synonyms ) {
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31 bq.add( fp.getQuery(qp,field,s), BooleanClause.Occur.SHOULD );
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32 }
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33 return bq;
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34 }
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35
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36 public Query getRangeQuery(GoodQueryParser qp,String field,String minQuery,String maxQuery,boolean includeMin,boolean includeMax) throws ParseException {
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37 return fp.getRangeQuery(qp,field,minQuery,maxQuery,includeMin,includeMax);
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38 }
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39
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40 public SortField getSortField(GoodQueryParser qp,String field,boolean reverse) throws ParseException {
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41 return fp.getSortField(qp,field,reverse);
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42 }
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43 }