Java BooleanClause類代碼示例

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
static Query binaryNameQuery (final String resourceName) {
    final BooleanQuery query = new BooleanQuery ();
    int index = resourceName.lastIndexOf(BinaryName.PKG_SEPARATOR);  // NOI18N
    String pkgName, sName;
    if (index < 0) {
        pkgName = "";   // NOI18N
        sName = resourceName;
    }
    else {
        pkgName = resourceName.substring(0,index);
        sName = resourceName.substring(index+1);
    }
    sName = sName + WILDCARD_QUERY_WILDCARD;   //Type of type element (Enum, Class, Interface, Annotation)
    query.add (new TermQuery (new Term (FIELD_PACKAGE_NAME, pkgName)),BooleanClause.Occur.MUST);
    query.add (new WildcardQuery (new Term (FIELD_BINARY_NAME, sName)),BooleanClause.Occur.MUST);
    return query;
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
/**
 * @deprecated Use {@link #parse(String[], String[], BooleanClause.Occur[], Analyzer)}
 */
@Deprecated
public static Query parse(Version matchVersion, String[] queries, String[] fields, BooleanClause.Occur[] flags,
    Analyzer analyzer) throws ParseException
{
  if (!(queries.length == fields.length && queries.length == flags.length))
    throw new IllegalArgumentException("queries, fields, and flags array have have different length");
  BooleanQuery bQuery = new BooleanQuery();
  for (int i = 0; i < fields.length; i++)
  {
    QueryParser qp = new QueryParser(matchVersion, fields[i], analyzer);
    Query q = qp.parse(queries[i]);
    if (q!=null && // q never null, just being defensive
        (!(q instanceof BooleanQuery) || ((BooleanQuery)q).getClauses().length>0)) {
      bQuery.add(q, flags[i]);
    }
  }
  return bQuery;
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
public void testExtractTerms() throws Exception {
    addQueryMapping();
    BooleanQuery.Builder bq = new BooleanQuery.Builder();
    TermQuery termQuery1 = new TermQuery(new Term("field", "term1"));
    bq.add(termQuery1, BooleanClause.Occur.SHOULD);
    TermQuery termQuery2 = new TermQuery(new Term("field", "term2"));
    bq.add(termQuery2, BooleanClause.Occur.SHOULD);

    DocumentMapper documentMapper = mapperService.documentMapper(typeName);
    PercolatorFieldMapper fieldMapper = (PercolatorFieldMapper) documentMapper.mappers().getMapper(fieldName);
    ParseContext.InternalParseContext parseContext = new ParseContext.InternalParseContext(Settings.EMPTY,
            mapperService.documentMapperParser(), documentMapper, null, null);
    fieldMapper.processQuery(bq.build(), parseContext);
    ParseContext.Document document = parseContext.doc();

    PercolatorFieldMapper.FieldType fieldType = (PercolatorFieldMapper.FieldType) fieldMapper.fieldType();
    assertThat(document.getField(fieldType.extractionResultField.name()).stringValue(), equalTo(EXTRACTION_COMPLETE));
    List<IndexableField> fields = new ArrayList<>(Arrays.asList(document.getFields(fieldType.queryTermsField.name())));
    Collections.sort(fields, (field1, field2) -> field1.binaryValue().compareTo(field2.binaryValue()));
    assertThat(fields.size(), equalTo(2));
    assertThat(fields.get(0).binaryValue().utf8ToString(), equalTo("field\u0000term1"));
    assertThat(fields.get(1).binaryValue().utf8ToString(), equalTo("field\u0000term2"));
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
public void testCreateMultiDocumentSearcher() throws Exception {
    int numDocs = randomIntBetween(2, 8);
    List<ParseContext.Document> docs = new ArrayList<>(numDocs);
    for (int i = 0; i < numDocs; i++) {
        docs.add(new ParseContext.Document());
    }

    Analyzer analyzer = new WhitespaceAnalyzer();
    ParsedDocument parsedDocument = new ParsedDocument(null, null, "_id", "_type", null, docs, null, null, null);
    IndexSearcher indexSearcher = PercolateQueryBuilder.createMultiDocumentSearcher(analyzer, parsedDocument);
    assertThat(indexSearcher.getIndexReader().numDocs(), equalTo(numDocs));

    // ensure that any query get modified so that the nested docs are never included as hits:
    Query query = new MatchAllDocsQuery();
    BooleanQuery result = (BooleanQuery) indexSearcher.createNormalizedWeight(query, true).getQuery();
    assertThat(result.clauses().size(), equalTo(2));
    assertThat(result.clauses().get(0).getQuery(), sameInstance(query));
    assertThat(result.clauses().get(0).getOccur(), equalTo(BooleanClause.Occur.MUST));
    assertThat(result.clauses().get(1).getOccur(), equalTo(BooleanClause.Occur.MUST_NOT));
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
@Override
protected Query doToQuery(QueryShardContext context) throws IOException {
    BooleanQuery.Builder booleanQueryBuilder = new BooleanQuery.Builder();
    booleanQueryBuilder.setDisableCoord(disableCoord);
    addBooleanClauses(context, booleanQueryBuilder, mustClauses, BooleanClause.Occur.MUST);
    addBooleanClauses(context, booleanQueryBuilder, mustNotClauses, BooleanClause.Occur.MUST_NOT);
    addBooleanClauses(context, booleanQueryBuilder, shouldClauses, BooleanClause.Occur.SHOULD);
    addBooleanClauses(context, booleanQueryBuilder, filterClauses, BooleanClause.Occur.FILTER);
    BooleanQuery booleanQuery = booleanQueryBuilder.build();
    if (booleanQuery.clauses().isEmpty()) {
        return new MatchAllDocsQuery();
    }

    final String minimumShouldMatch;
    if (context.isFilter() && this.minimumShouldMatch == null && shouldClauses.size() > 0) {
        minimumShouldMatch = "1";
    } else {
        minimumShouldMatch = this.minimumShouldMatch;
    }
    Query query = Queries.applyMinimumShouldMatch(booleanQuery, minimumShouldMatch);
    return adjustPureNegative ? fixNegativeQueryIfNeeded(query) : query;
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
private static void addBooleanClauses(QueryShardContext context, BooleanQuery.Builder booleanQueryBuilder,
                                      List<QueryBuilder> clauses, Occur occurs) throws IOException {
    for (QueryBuilder query : clauses) {
        Query luceneQuery = null;
        switch (occurs) {
            case MUST:
            case SHOULD:
                luceneQuery = query.toQuery(context);
                break;
            case FILTER:
            case MUST_NOT:
                luceneQuery = query.toFilter(context);
                break;
        }
        booleanQueryBuilder.add(new BooleanClause(luceneQuery, occurs));
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
@Override
protected Query doToQuery(QueryShardContext context) throws IOException {
    DocumentMapper childDocMapper = context.getMapperService().documentMapper(type);
    if (childDocMapper == null) {
        if (ignoreUnmapped) {
            return new MatchNoDocsQuery();
        } else {
            throw new QueryShardException(context, "[" + NAME + "] no mapping found for type [" + type + "]");
        }
    }
    ParentFieldMapper parentFieldMapper = childDocMapper.parentFieldMapper();
    if (parentFieldMapper.active() == false) {
        throw new QueryShardException(context, "[" + NAME + "] _parent field has no parent type configured");
    }
    String fieldName = ParentFieldMapper.joinField(parentFieldMapper.type());

    BooleanQuery.Builder query = new BooleanQuery.Builder();
    query.add(new DocValuesTermsQuery(fieldName, id), BooleanClause.Occur.MUST);
    // Need to take child type into account, otherwise a child doc of different type with the same id could match
    query.add(new TermQuery(new Term(TypeFieldMapper.NAME, type)), BooleanClause.Occur.FILTER);
    return query.build();
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
/**
 * Dispatches to Lucene's SimpleQueryParser's newFuzzyQuery, optionally
 * lowercasing the term first
 */
@Override
public Query newFuzzyQuery(String text, int fuzziness) {
    BooleanQuery.Builder bq = new BooleanQuery.Builder();
    bq.setDisableCoord(true);
    for (Map.Entry<String,Float> entry : weights.entrySet()) {
        final String fieldName = entry.getKey();
        try {
            final BytesRef term = getAnalyzer().normalize(fieldName, text);
            Query query = new FuzzyQuery(new Term(fieldName, term), fuzziness);
            bq.add(wrapWithBoost(query, entry.getValue()), BooleanClause.Occur.SHOULD);
        } catch (RuntimeException e) {
            rethrowUnlessLenient(e);
        }
    }
    return super.simplify(bq.build());
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
@Override
public Query newPhraseQuery(String text, int slop) {
    BooleanQuery.Builder bq = new BooleanQuery.Builder();
    bq.setDisableCoord(true);
    for (Map.Entry<String,Float> entry : weights.entrySet()) {
        try {
            String field = entry.getKey();
            if (settings.quoteFieldSuffix() != null) {
                String quoteField = field + settings.quoteFieldSuffix();
                MappedFieldType quotedFieldType = context.fieldMapper(quoteField);
                if (quotedFieldType != null) {
                    field = quoteField;
                }
            }
            Float boost = entry.getValue();
            Query q = createPhraseQuery(field, text, slop);
            if (q != null) {
                bq.add(wrapWithBoost(q, boost), BooleanClause.Occur.SHOULD);
            }
        } catch (RuntimeException e) {
            rethrowUnlessLenient(e);
        }
    }
    return super.simplify(bq.build());
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
/**
 * Dispatches to Lucene's SimpleQueryParser's newPrefixQuery, optionally
 * lowercasing the term first or trying to analyze terms
 */
@Override
public Query newPrefixQuery(String text) {
    BooleanQuery.Builder bq = new BooleanQuery.Builder();
    bq.setDisableCoord(true);
    for (Map.Entry<String,Float> entry : weights.entrySet()) {
        final String fieldName = entry.getKey();
        try {
            if (settings.analyzeWildcard()) {
                Query analyzedQuery = newPossiblyAnalyzedQuery(fieldName, text);
                if (analyzedQuery != null) {
                    bq.add(wrapWithBoost(analyzedQuery, entry.getValue()), BooleanClause.Occur.SHOULD);
                }
            } else {
                Term term = new Term(fieldName, getAnalyzer().normalize(fieldName, text));
                Query query = new PrefixQuery(term);
                bq.add(wrapWithBoost(query, entry.getValue()), BooleanClause.Occur.SHOULD);
            }
        } catch (RuntimeException e) {
            return rethrowUnlessLenient(e);
        }
    }
    return super.simplify(bq.build());
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
private void queryBasedPercolating(Engine.Searcher percolatorSearcher, PercolateContext context, QueryCollector percolateCollector) throws IOException {
    Query percolatorTypeFilter = context.indexService().mapperService().documentMapper(TYPE_NAME).typeFilter();

    final Query filter;
    if (context.aliasFilter() != null) {
        BooleanQuery.Builder booleanFilter = new BooleanQuery.Builder();
        booleanFilter.add(context.aliasFilter(), BooleanClause.Occur.MUST);
        booleanFilter.add(percolatorTypeFilter, BooleanClause.Occur.MUST);
        filter = booleanFilter.build();
    } else {
        filter = percolatorTypeFilter;
    }

    Query query = Queries.filtered(context.percolateQuery(), filter);
    percolatorSearcher.searcher().search(query, percolateCollector);
    percolateCollector.aggregatorCollector.postCollection();
    if (context.aggregations() != null) {
        aggregationPhase.execute(context);
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
public static Query applyMinimumShouldMatch(BooleanQuery query, @Nullable String minimumShouldMatch) {
    if (minimumShouldMatch == null) {
        return query;
    }
    int optionalClauses = 0;
    for (BooleanClause c : query.clauses()) {
        if (c.getOccur() == BooleanClause.Occur.SHOULD) {
            optionalClauses++;
        }
    }

    int msm = calculateMinShouldMatch(optionalClauses, minimumShouldMatch);
    if (0 < msm) {
        BooleanQuery.Builder builder = new BooleanQuery.Builder();
        builder.setDisableCoord(query.isCoordDisabled());
        for (BooleanClause clause : query) {
            builder.add(clause);
        }
        builder.setMinimumNumberShouldMatch(msm);
        return builder.build();
    } else {
        return query;
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
public void checkGeoQueryHighlighting(Query geoQuery) throws IOException, InvalidTokenOffsetsException {
    Map analysers = new HashMap<String, Analyzer>();
    analysers.put("text", new StandardAnalyzer());
    FieldNameAnalyzer fieldNameAnalyzer = new FieldNameAnalyzer(analysers);
    Query termQuery = new TermQuery(new Term("text", "failure"));
    Query boolQuery = new BooleanQuery.Builder().add(new BooleanClause(geoQuery, BooleanClause.Occur.SHOULD))
        .add(new BooleanClause(termQuery, BooleanClause.Occur.SHOULD)).build();
    org.apache.lucene.search.highlight.Highlighter highlighter =
        new org.apache.lucene.search.highlight.Highlighter(new CustomQueryScorer(boolQuery));
    String fragment = highlighter.getBestFragment(fieldNameAnalyzer.tokenStream("text", "Arbitrary text field which should not cause " +
        "a failure"), "Arbitrary text field which should not cause a failure");
    assertThat(fragment, equalTo("Arbitrary text field which should not cause a <B>failure</B>"));
    Query rewritten = boolQuery.rewrite(null);
    highlighter = new org.apache.lucene.search.highlight.Highlighter(new CustomQueryScorer(rewritten));
    fragment = highlighter.getBestFragment(fieldNameAnalyzer.tokenStream("text", "Arbitrary text field which should not cause " +
        "a failure"), "Arbitrary text field which should not cause a failure");
    assertThat(fragment, equalTo("Arbitrary text field which should not cause a <B>failure</B>"));
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
public void testAnalyzeWildcard() {
    SimpleQueryParser.Settings settings = new SimpleQueryParser.Settings();
    settings.analyzeWildcard(true);
    Map<String, Float> weights = new HashMap<>();
    weights.put("field1", 1.0f);
    SimpleQueryParser parser = new MockSimpleQueryParser(new StandardAnalyzer(), weights, -1, settings);
    for (Operator op : Operator.values()) {
        BooleanClause.Occur defaultOp = op.toBooleanClauseOccur();
        parser.setDefaultOperator(defaultOp);
        Query query = parser.parse("first foo-bar-foobar* last");
        Query expectedQuery =
            new BooleanQuery.Builder()
                .add(new BooleanClause(new TermQuery(new Term("field1", "first")), defaultOp))
                .add(new BooleanQuery.Builder()
                    .add(new BooleanClause(new TermQuery(new Term("field1", "foo")), defaultOp))
                    .add(new BooleanClause(new TermQuery(new Term("field1", "bar")), defaultOp))
                    .add(new BooleanClause(new PrefixQuery(new Term("field1", "foobar")), defaultOp))
                    .build(), defaultOp)
                .add(new BooleanClause(new TermQuery(new Term("field1", "last")), defaultOp))
                .build();
        assertThat(query, equalTo(expectedQuery));
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入依賴的package包/類
private BooleanQuery buildMustMatchQuery(Map<String,Map<String, Flt>> fieldValues, boolean mustMatch){
    BooleanQuery.Builder qryBuilder = new BooleanQuery.Builder();
    for(Map.Entry<String,Map<String,Flt>> entry: fieldValues.entrySet()){
        String fieldName = entry.getKey();
        for(Map.Entry<String,Flt> fieldValue: entry.getValue().entrySet()){
            String value = fieldValue.getKey();
            TermQuery tq = new TermQuery(new Term(fieldName, value));
            if(mustMatch) {
                qryBuilder.add(tq, BooleanClause.Occur.MUST);
            }
            else{
                qryBuilder.add(tq, BooleanClause.Occur.MUST_NOT);
            }
        }
    }
    return qryBuilder.build();
}