Examples with FuzzyQuery org.apache.lucene.search.FuzzyQuery used on opensource projects

Example 36 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project lucene-solr by apache.

the class QueryParsing method toString.

/**
   * @see #toString(Query,IndexSchema)
   */
public static void toString(Query query, IndexSchema schema, Appendable out, int flags) throws IOException {
    // clear the boosted / is clause flags for recursion
    int subflag = flags & ~(FLAG_BOOSTED | FLAG_IS_CLAUSE);
    if (query instanceof TermQuery) {
        TermQuery q = (TermQuery) query;
        Term t = q.getTerm();
        FieldType ft = writeFieldName(t.field(), schema, out, flags);
        writeFieldVal(t.bytes(), ft, out, flags);
    } else if (query instanceof TermRangeQuery) {
        TermRangeQuery q = (TermRangeQuery) query;
        String fname = q.getField();
        FieldType ft = writeFieldName(fname, schema, out, flags);
        out.append(q.includesLower() ? '[' : '{');
        BytesRef lt = q.getLowerTerm();
        BytesRef ut = q.getUpperTerm();
        if (lt == null) {
            out.append('*');
        } else {
            writeFieldVal(lt, ft, out, flags);
        }
        out.append(" TO ");
        if (ut == null) {
            out.append('*');
        } else {
            writeFieldVal(ut, ft, out, flags);
        }
        out.append(q.includesUpper() ? ']' : '}');
    } else if (query instanceof LegacyNumericRangeQuery) {
        LegacyNumericRangeQuery q = (LegacyNumericRangeQuery) query;
        String fname = q.getField();
        FieldType ft = writeFieldName(fname, schema, out, flags);
        out.append(q.includesMin() ? '[' : '{');
        Number lt = q.getMin();
        Number ut = q.getMax();
        if (lt == null) {
            out.append('*');
        } else {
            out.append(lt.toString());
        }
        out.append(" TO ");
        if (ut == null) {
            out.append('*');
        } else {
            out.append(ut.toString());
        }
        out.append(q.includesMax() ? ']' : '}');
    } else if (query instanceof BooleanQuery) {
        BooleanQuery q = (BooleanQuery) query;
        boolean needParens = false;
        if (q.getMinimumNumberShouldMatch() != 0 || (flags & (FLAG_IS_CLAUSE | FLAG_BOOSTED)) != 0) {
            needParens = true;
        }
        if (needParens) {
            out.append('(');
        }
        boolean first = true;
        for (BooleanClause c : q.clauses()) {
            if (!first) {
                out.append(' ');
            } else {
                first = false;
            }
            if (c.isProhibited()) {
                out.append('-');
            } else if (c.isRequired()) {
                out.append('+');
            }
            Query subQuery = c.getQuery();
            toString(subQuery, schema, out, subflag | FLAG_IS_CLAUSE);
        }
        if (needParens) {
            out.append(')');
        }
        if (q.getMinimumNumberShouldMatch() > 0) {
            out.append('~');
            out.append(Integer.toString(q.getMinimumNumberShouldMatch()));
        }
    } else if (query instanceof PrefixQuery) {
        PrefixQuery q = (PrefixQuery) query;
        Term prefix = q.getPrefix();
        FieldType ft = writeFieldName(prefix.field(), schema, out, flags);
        out.append(prefix.text());
        out.append('*');
    } else if (query instanceof WildcardQuery) {
        out.append(query.toString());
    } else if (query instanceof FuzzyQuery) {
        out.append(query.toString());
    } else if (query instanceof ConstantScoreQuery) {
        out.append(query.toString());
    } else if (query instanceof WrappedQuery) {
        WrappedQuery q = (WrappedQuery) query;
        out.append(q.getOptions());
        toString(q.getWrappedQuery(), schema, out, subflag);
    } else if (query instanceof BoostQuery) {
        BoostQuery q = (BoostQuery) query;
        toString(q.getQuery(), schema, out, subflag | FLAG_BOOSTED);
        out.append("^");
        out.append(Float.toString(q.getBoost()));
    } else {
        out.append(query.getClass().getSimpleName() + '(' + query.toString() + ')');
    }
}

Example 37 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project fess by codelibs.

the class QueryHelper method convertFuzzyQuery.

protected QueryBuilder convertFuzzyQuery(final QueryContext context, final FuzzyQuery fuzzyQuery, final float boost) {
    final Term term = fuzzyQuery.getTerm();
    final String field = term.field();
    // TODO fuzzy value
    if (Constants.DEFAULT_FIELD.equals(field)) {
        context.addFieldLog(field, term.text());
        return buildDefaultQueryBuilder((f, b) -> QueryBuilders.fuzzyQuery(f, term.text()).fuzziness(Fuzziness.fromEdits(fuzzyQuery.getMaxEdits())).boost(b * boost));
    } else if (isSearchField(field)) {
        context.addFieldLog(field, term.text());
        return QueryBuilders.fuzzyQuery(field, term.text()).boost(boost).fuzziness(Fuzziness.fromEdits(fuzzyQuery.getMaxEdits()));
    } else {
        final String origQuery = fuzzyQuery.toString();
        context.addFieldLog(Constants.DEFAULT_FIELD, origQuery);
        context.addHighlightedQuery(origQuery);
        return buildDefaultQueryBuilder((f, b) -> QueryBuilders.fuzzyQuery(f, origQuery).fuzziness(Fuzziness.fromEdits(fuzzyQuery.getMaxEdits())).boost(b * boost));
    }
}

Example 38 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project eol-globi-data by jhpoelen.

the class QueryUtil method addQueriesForProperty.

private static void addQueriesForProperty(String capitalizedValue, String propertyName, List<Query> list) {
    list.add(new FuzzyQuery(new Term(propertyName, capitalizedValue)));
    list.add(new WildcardQuery(new Term(propertyName, capitalizedValue + "*")));
}

Example 39 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project tutorials by eugenp.

the class LuceneInMemorySearchTest method givenFuzzyQueryWhenFetchedDocumentThenCorrect.

@Test
public void givenFuzzyQueryWhenFetchedDocumentThenCorrect() {
    InMemoryLuceneIndex inMemoryLuceneIndex = new InMemoryLuceneIndex(new RAMDirectory(), new StandardAnalyzer());
    inMemoryLuceneIndex.indexDocument("article", "Halloween Festival");
    inMemoryLuceneIndex.indexDocument("decoration", "Decorations for Halloween");
    Term term = new Term("body", "hallowen");
    Query query = new FuzzyQuery(term);
    List<Document> documents = inMemoryLuceneIndex.searchIndex(query);
    Assert.assertEquals(2, documents.size());
}