Java BooleanQuery類代碼示例

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/**
 * Returns a {@link BooleanQuery} for the given search text.
 *
 * @param indexType the type in which should be searched.
 * @param search the search text.
 * @param baseBoost highest possible boost of the query. The more the match is exact
 * 			than a bigger boost will be used.
 */
private static BooleanQuery buildSearchTermQuery(final IIndexTypeConf indexType, final String search,
		final float baseBoost) {
	final BooleanQuery subQuery = new BooleanQuery();

	final String lowerCase = StringUtils.lowerCase(search);
	final String capitalized = StringUtils.capitalize(search);

	addSearchTermQueries(indexType, search, subQuery, baseBoost);

	if(!lowerCase.equals(search)) {
		addSearchTermQueries(indexType, lowerCase, subQuery, 0.8f*baseBoost);
	}

	if(!capitalized.equals(search)) {
		addSearchTermQueries(indexType, capitalized, subQuery, 0.8f*baseBoost);
	}

	return subQuery;
}
 

import org.apache.lucene.search.BooleanQuery; //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.BooleanQuery; //導入依賴的package包/類
private static BooleanQuery createFQNQuery(final String resourceName) {
    String pkgName;
    String sName;
    int index = resourceName.lastIndexOf(BinaryName.PKG_SEPARATOR);
    if (index < 0) {
        pkgName = "";       //NOI18N
        sName = resourceName;
    } else {
        pkgName = resourceName.substring(0, index);
        sName = resourceName.substring(index+1);
    }
    final BooleanQuery snQuery = new BooleanQuery();
    snQuery.add (new WildcardQuery (new Term (DocumentUtil.FIELD_BINARY_NAME, sName + DocumentUtil.WILDCARD_QUERY_WILDCARD)),Occur.SHOULD);
    snQuery.add (new PrefixQuery (new Term (DocumentUtil.FIELD_BINARY_NAME, sName + '$')),Occur.SHOULD);   //NOI18N
    if (pkgName.length() == 0) {
        return snQuery;
    }
    final BooleanQuery fqnQuery = new BooleanQuery();
    fqnQuery.add(new TermQuery(new Term(DocumentUtil.FIELD_PACKAGE_NAME,pkgName)), Occur.MUST);
    fqnQuery.add(snQuery, Occur.MUST);
    return fqnQuery;
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
public Query combineGrouped(List<Query> queries) {
    if (queries == null || queries.isEmpty()) {
        return null;
    }
    if (queries.size() == 1) {
        return queries.get(0);
    }
    if (groupDismax) {
        return new DisjunctionMaxQuery(queries, tieBreaker);
    } else {
        BooleanQuery.Builder booleanQuery = new BooleanQuery.Builder();
        for (Query query : queries) {
            booleanQuery.add(query, BooleanClause.Occur.SHOULD);
        }
        return booleanQuery.build();
    }
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
private static BooleanQuery prepareWildcardQueryForSingleToken(String token,
        List<String> fieldNames, String locale, String defaultLocale,
        boolean isDefaultLocaleHandling) {

    BooleanQuery queryPart = new BooleanQuery();

    for (String fieldName : fieldNames) {
        if (isDefaultLocaleHandling) {
            if (locale.equals(defaultLocale)) {
                throw new IllegalArgumentException(
                        "For default locale handling, locale and default locale must be different");
            }
            BooleanQuery localeHandlingQuery = constructDefaultLocaleHandlingQuery(
                    fieldName, locale, defaultLocale, token);
            queryPart.add(localeHandlingQuery, Occur.SHOULD);
        } else {
            WildcardQuery wildcardQuery = new WildcardQuery(new Term(
                    fieldName + locale, "*" + token.toLowerCase() + "*"));
            queryPart.add(wildcardQuery, Occur.SHOULD);
        }

    }
    return queryPart;
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/**
 * Returns lucene's document id for the given id in the given {@link IIndexTypeConf}
 * @param typeConf the 188.166.43.201 to fins.
 * @param id the id to find.
 * @return the id or 0 if document was not found.
 */
public int getDocIdForId(final IIndexTypeConf typeConf, final String id) {
	final SearchOptions params = new SearchOptions();
	params.setMaxResults(1);

	final BooleanQuery query = new BooleanQuery();
	QueryUtil.addTypeConf(query, typeConf);
	QueryUtil.addId(query, id);

	final TopDocs topDocs = IndexSearch.getInstance().getTopDocs(query, params);

	if(topDocs.totalHits == 0) {
		throw new IllegalStateException("Can't find news with id " + id + " in news index.");
	}
	else if(topDocs.totalHits > 1) {
		LOGGER.warn("Found more than one result for news with id " + id + " in news index. "
				+ "This is an invalid state. Using the first found document.");
	}

	return topDocs.scoreDocs[0].doc;
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/**
 * Adds a filter for the given search text to the given {@link BooleanQuery}.
 * If the search text is blank, than the query will not modified.
 * For each part of the search text {@link #buildSearchTermQuery(IIndexTypeConf, String, float)}
 * will be called.
 *
 * @param query the {@link BooleanQuery} to add the sub queries.
 * @param searchText the search text. May be blank (null or contain only white spaces).
 * @param indexType the type in which should be searched.
 * @param baseBoost highest possible boost of the query. The more the match is exact
 * 			than a bigger boost will be used.
 */
public static void addSearchText(final BooleanQuery query,
		final String searchText, final IIndexTypeConf indexType, final float baseBoost) {

	if(StringUtils.isBlank(searchText)) {
		return;
	}

	query.setMinimumNumberShouldMatch(1); // at least one "should" should match
	query.add(buildSearchTermQuery(indexType, searchText, baseBoost), Occur.SHOULD);

	final BooleanQuery partsQuery = new BooleanQuery();
	query.add(partsQuery, Occur.SHOULD);

	final String[] searchTexts = searchText.toLowerCase().split("\\s");
	for (final String search : searchTexts) {
		partsQuery.add(buildSearchTermQuery(indexType, search, baseBoost), Occur.MUST); // each part has to match
	}
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/**
 * Adds for every field in {@link IIndexTypeConf} a {@link TermQuery}, {@link PrefixQuery} and
 * a {@link FuzzyQuery} with a suitable boost relative to the given base boost.
 *
 * @param indexType the type in which should be searched.
 * @param search the search text.
 * @param subQuery the {@link BooleanQuery} to add the sub queries.
 * @param baseBoost highest possible boost of the query. The more the match is exact
 * 			than a bigger boost will be used.
 */
private static void addSearchTermQueries(final IIndexTypeConf indexType, final String search,
		final BooleanQuery subQuery, final float baseBoost) {

	for(final IIndexFieldConf<?> field : indexType.getFields()) {
		final Term term = new Term(field.getName(), search);

		final TermQuery exactQuery = new TermQuery(term);
		exactQuery.setBoost(baseBoost);
		subQuery.add(exactQuery, Occur.SHOULD);

		final PrefixQuery pfQuery = new PrefixQuery(term);
		pfQuery.setBoost(0.7f*baseBoost);
		subQuery.add(pfQuery, Occur.SHOULD);

		final FuzzyQuery fuzzyQuery = new FuzzyQuery(term);
		fuzzyQuery.setBoost(0.5f*baseBoost);
		subQuery.add(fuzzyQuery, Occur.SHOULD);
	}
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/**
 * Returns all {@link News} of the given news group except the {@link News} with the given id.
 * @param newsGroupId the news group id
 * @param exceptId the news which should not be returned
 * @return a {@link List} with all {@link News} of the requested news group except the {@link News} with the exceptId.
 */
private List<News> getNewsOfNewsGroup(final long newsGroupId, final long exceptId) {
	final BooleanQuery query = new BooleanQuery();

	QueryUtil.addTypeConf(query, NewsIndexType.getInstance());

	final NumericRangeQuery<Long> groupQuery = NumericRangeQuery.newLongRange(
			NewsIndexType.FIELD_NEWSGROUPID, newsGroupId, newsGroupId, true, true);
	query.add(groupQuery, Occur.MUST);

	// exclude news
	query.add(new TermQuery(new Term(IIndexElement.FIELD_ID, String.valueOf(exceptId))), Occur.MUST_NOT);

	final SearchOptions options = new SearchOptions();
	options.setSort(new Sort(ESortField.PUBLISH_DATE.getSortField(ESortOrder.DESC)));

	final DocumentsSearchResult result = IndexSearch.getInstance().search(query, options);
	return NewsIndexType.docsToNews(result.getResults());
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/**
 * Returns the amount of {@link News} which are assigned to news groups (news group id > 0)
 * for the given {@link Query}.
 */
private int getAmountOfNewsInNewsGroups(final Query filterQuery) {
	final BooleanQuery query = new BooleanQuery();
	query.add(filterQuery, Occur.MUST);

	// get only news that are in real groups (newsGroupId > 0)
	final NumericRangeQuery<Long> newsGroupFilterQuery = NumericRangeQuery.newLongRange(
			NewsIndexType.FIELD_NEWSGROUPID, 0l, null, false, true);
	query.add(newsGroupFilterQuery, Occur.MUST);

	final SearchOptions options = new SearchOptions();
	options.setMaxResults(0); // we only want the totalHits, not the results.

	final TopDocs topDocs = IndexSearch.getInstance().getTopDocs(query, options);

	return topDocs.totalHits;
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
@Override
public Collection<IndexedItem> search(IndexSearcher searcher) throws IOException
{
	BooleanQuery overall = new BooleanQuery();
	BooleanQuery collections = new BooleanQuery();
	for( Institution inst : institutions )
	{
		collections.add(
			new TermQuery(new Term(FreeTextQuery.FIELD_INSTITUTION, Long.toString(inst.getUniqueId()))),
			Occur.SHOULD);
	}
	overall.add(collections, Occur.MUST);
	overall.add(NumericRangeQuery.newLongRange(FreeTextQuery.FIELD_ID_RANGEABLE, firstId, lastId, true, true),
		Occur.MUST);
	searcher.search(overall, compareDates);
	return compareDates.getModifiedDocs();
}
 

import org.apache.lucene.search.BooleanQuery; //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.BooleanQuery; //導入依賴的package包/類
private static BooleanQuery constructDefaultLocaleHandlingQuery(
        String fieldName, String locale, String defaultLocale,
        String searchPhrase) {
    BooleanQuery bq1 = new BooleanQuery();
    TermQuery tq1 = new TermQuery(
            new Term(fieldName + ProductClassBridge.DEFINED_LOCALES_SUFFIX,
                    defaultLocale));
    TermQuery tq2 = new TermQuery(new Term(
            fieldName + ProductClassBridge.DEFINED_LOCALES_SUFFIX, locale));
    bq1.add(tq1, Occur.MUST);
    bq1.add(tq2, Occur.MUST_NOT);
    BooleanQuery bq2 = new BooleanQuery();
    WildcardQuery wq1 = new WildcardQuery(
            new Term(fieldName + defaultLocale,
                    "*" + searchPhrase.toLowerCase() + "*"));
    bq2.add(wq1, Occur.SHOULD);
    BooleanQuery finalQuery = new BooleanQuery();
    finalQuery.add(bq1, Occur.MUST);
    finalQuery.add(bq2, Occur.MUST);

    return finalQuery;
}
 

import org.apache.lucene.search.BooleanQuery; //導入依賴的package包/類
/** 
 * Creates a minimum-should-match query from the query text.
 * <p>
 * @param field field name
 * @param queryText text to be passed to the analyzer
 * @param fraction of query terms {@code [0..1]} that should match 
 * @return {@code TermQuery} or {@code BooleanQuery}, based on the analysis 
 *         of {@code queryText}
 */
public Query createMinShouldMatchQuery(String field, String queryText, float fraction) {
  if (Float.isNaN(fraction) || fraction < 0 || fraction > 1) {
    throw new IllegalArgumentException("fraction should be >= 0 and <= 1");
  }
  
  // TODO: wierd that BQ equals/rewrite/scorer doesn't handle this?
  if (fraction == 1) {
    return createBooleanQuery(field, queryText, BooleanClause.Occur.MUST);
  }
  
  Query query = createFieldQuery(analyzer, BooleanClause.Occur.SHOULD, field, queryText, false, 0);
  if (query instanceof BooleanQuery) {
    BooleanQuery bq = (BooleanQuery) query;
    bq.setMinimumNumberShouldMatch((int) (fraction * bq.clauses().size()));
  }
  return query;
}
 

import org.apache.lucene.search.BooleanQuery; //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));
    }
}