Example usage for org.apache.lucene.search Sort Sort

List of usage examples for org.apache.lucene.search Sort Sort

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Introduction

In this page you can find the example usage for org.apache.lucene.search Sort Sort.

Prototype

public Sort()

Source Link

Document

Sorts by computed relevance.

Usage

From source file:com.stratio.cassandra.lucene.index.DocumentIteratorTest.java

License:Apache License

@Test
public void testConstructorWithPageEqualsZero() throws IOException {
    IndexWriterConfig iwConfig = new IndexWriterConfig(new AnalyzerMock());
    SearcherManager searcherManager = new SearcherManager(new IndexWriterMock(new DirectoryMock(), iwConfig),
            true, null);/*from  w  ww .  j a v  a  2  s .c o m*/
    DocumentIterator docIterator = new DocumentIterator(searcherManager, new Sort(), null, new QueryMock(),
            new Sort(), 0, new HashSet<>());

    assertEquals("document Iterator page is invalid", 1, docIterator.page);
}

From source file:com.stratio.cassandra.lucene.index.DocumentIteratorTest.java

License:Apache License

@Test
public void testConstructorWithPageEqualsOne() throws IOException {
    IndexWriterConfig iwConfig = new IndexWriterConfig(new AnalyzerMock());
    SearcherManager searcherManager = new SearcherManager(new IndexWriterMock(new DirectoryMock(), iwConfig),
            true, null);/*from   w  w w  .  j  a v  a  2  s . com*/
    DocumentIterator docIterator = new DocumentIterator(searcherManager, new Sort(), null, new QueryMock(),
            new Sort(), 1, new HashSet<>());

    assertEquals("document Iterator page is invalid", 2, docIterator.page);
}

From source file:com.stratio.cassandra.lucene.index.DocumentIteratorTest.java

License:Apache License

@Test
public void testConstructorWithPageEqualsMaxValue() throws IOException {
    IndexWriterConfig iwConfig = new IndexWriterConfig(new AnalyzerMock());
    SearcherManager searcherManager = new SearcherManager(new IndexWriterMock(new DirectoryMock(), iwConfig),
            true, null);//from  w  w  w .  j  a  v  a  2s  . c o m
    DocumentIterator docIterator = new DocumentIterator(searcherManager, new Sort(), null, new QueryMock(),
            new Sort(), DocumentIterator.MAX_PAGE_SIZE, new HashSet<>());

    assertEquals("document Iterator page is invalid", DocumentIterator.MAX_PAGE_SIZE + 1, docIterator.page);
}

From source file:com.stratio.cassandra.lucene.index.DocumentIteratorTest.java

License:Apache License

@Test
public void testConstructorWithPageOverMaxValue() throws IOException {
    IndexWriterConfig iwConfig = new IndexWriterConfig(new AnalyzerMock());
    SearcherManager searcherManager = new SearcherManager(new IndexWriterMock(new DirectoryMock(), iwConfig),
            true, null);// ww w .j  a  va 2s  .c o m
    DocumentIterator docIterator = new DocumentIterator(searcherManager, new Sort(), null, new QueryMock(),
            new Sort(), 10000000, new HashSet<>());

    assertEquals("document Iterator page is invalid", DocumentIterator.MAX_PAGE_SIZE + 1, docIterator.page);
}

From source file:de.uni_koeln.spinfo.maalr.lucene.core.Dictionary.java

License:Apache License

public QueryResult query(MaalrQuery maalrQuery) throws InvalidQueryException, NoIndexAvailableException,
        BrokenIndexException, IOException, InvalidTokenOffsetsException {
    long start = System.nanoTime();
    validateQuery(maalrQuery);/*  w ww . ja va 2  s .  c  o m*/
    int pageSize = maalrQuery.getPageSize();
    long s1 = System.nanoTime();
    Query query = indexManager.buildQuery(maalrQuery);
    TopDocs docs = null;
    // TODO: Make this configurable!
    Sort sort = new Sort();
    String[] items = null;
    if (maalrQuery.getValue("language") != null
            && maalrQuery.getValue("language").equals(description.getLanguageName(false))) {
        items = description.getSortList(false);
    } else {
        items = description.getSortList(true);
    }
    SortField[] fields = new SortField[items.length + 1];
    fields[0] = SortField.FIELD_SCORE;
    for (int i = 0; i < items.length; i++) {
        String item = items[i];
        fields[i + 1] = new SortField(item, sortTypes.get(item));
    }
    sort.setSort(fields);
    QueryResult result = null;
    int pageNr = maalrQuery.getPageNr();
    long e1 = System.nanoTime();
    try {
        long s2 = System.nanoTime();
        docs = indexProvider.getSearcher().search(query, pageSize * (pageNr + 1), sort);
        long e2 = System.nanoTime();
        result = toQueryResult(docs, pageSize * pageNr, maalrQuery.getPageSize());
        if (logger.isDebugEnabled()) {
            logger.debug("Time to build query: " + (e1 - s1) / 1000000 + ", Time to execute query: "
                    + ((e2 - s2) / 1000000));
        }
    } catch (IOException e) {
        throw new BrokenIndexException("Failed to access index", e);
    }
    long end = System.nanoTime();
    double time = (end - start) / 1000000D;
    // Warn if query takes more than 100 ms.
    if (time > 100) {
        logger.warn("Slow query: " + formatter.format(time) + " ms for " + maalrQuery);
    } else if (logger.isDebugEnabled()) {
        logger.debug("Processed query in " + formatter.format(time) + " ms :" + maalrQuery);
    }
    return result;
}

From source file:net.conquiris.lucene.search.SortBuilder.java

License:Apache License

/** Creates the sort specification. */
@Override//from   w w w.j ava2 s.c  om
public Sort build() {
    if (fields.isEmpty()) {
        return new Sort();
    } else {
        SortField[] array = new SortField[fields.size()];
        fields.toArray(array);
        return new Sort(array);
    }
}

From source file:org.ala.dao.TaxonConceptSHDaoImpl.java

License:Open Source License

/**
 * Perform Lucene search with params for sorting and paging
 * //from  w  w  w .  j a  v  a2s.c  o  m
 * @param searchQuery
 * @param startIndex
 * @param pageSize
 * @param sortDirection
 * @param sortField
 * @return
 * @throws IOException
 * @throws Exception
 */
private SearchResultsDTO sortPageSearch(Query searchQuery, Integer startIndex, Integer pageSize,
        String sortField, String sortDirection) throws IOException, Exception {
    boolean direction = false;

    if (sortDirection != null && !sortDirection.isEmpty() && sortDirection.equalsIgnoreCase("desc")) {
        direction = true;
    }

    Sort sort = new Sort();

    if (sortField != null && !sortField.isEmpty() && !sortField.equalsIgnoreCase("score")) {
        SortField sf = new SortField(sortField, SortField.Type.STRING, direction);
        sort.setSort(sf);
    } else {
        sort = Sort.RELEVANCE;
    }

    TopDocs topDocs = getTcIdxSearcher().search(searchQuery, null, startIndex + pageSize, sort); // TODO ues sortField here
    logger.debug("Total hits: " + topDocs.totalHits);
    List<SearchTaxonConceptDTO> tcs = new ArrayList<SearchTaxonConceptDTO>();

    for (int i = 0; i < topDocs.scoreDocs.length; i++) {
        if (i >= startIndex) {
            ScoreDoc scoreDoc = topDocs.scoreDocs[i];
            Document doc = getTcIdxSearcher().doc(scoreDoc.doc);
            tcs.add(createTaxonConceptFromIndex(doc, scoreDoc.score));
        }
    }

    SearchResultsDTO searchResults = new SearchResultsDTO(tcs);
    searchResults.setTotalRecords(topDocs.totalHits);
    searchResults.setStartIndex(startIndex);
    searchResults.setStatus("OK");
    searchResults.setSort(sortField);
    searchResults.setDir(sortDirection);
    searchResults.setQuery(searchQuery.toString());

    return searchResults;
}

From source file:org.apache.jackrabbit.core.query.lucene.JackrabbitIndexSearcher.java

License:Apache License

/**
 * Evaluates the query and returns the hits that match the query.
 *
 * @param query           the query to execute.
 * @return the query hits.//w w  w.ja v a 2  s  .c o m
 * @throws IOException if an error occurs while executing the query.
 */
public QueryHits evaluate(Query query) throws IOException {
    return evaluate(query, new Sort(), Integer.MAX_VALUE);
}

From source file:org.apache.jackrabbit.core.query.lucene.join.JahiaQueryEngine.java

License:Open Source License

/**
 * Override QueryEngine.execute()//from w w  w  . ja v  a 2  s .com
 */
@Override
protected QueryResult execute(Column[] columns, Selector selector, Constraint constraint, Ordering[] orderings,
        long offset, long limit, int printIndentation) throws RepositoryException {
    Map<String, NodeType> selectorMap = getSelectorNames(selector);
    String[] selectorNames = selectorMap.keySet().toArray(new String[selectorMap.size()]);

    Map<String, PropertyValue> columnMap = getColumnMap(columns, selectorMap);
    String[] columnNames = columnMap.keySet().toArray(new String[columnMap.size()]);

    Sort sort = new Sort();
    if (nativeSort) {
        sort = new Sort(createSortFields(orderings, session));
    }

    // if true it means that the LuceneQueryFactory should just let the
    // QueryEngine take care of sorting and applying offset and limit
    // constraints
    boolean externalSort = !nativeSort && (orderings != null && orderings.length > 0);

    List<Row> rowsList = null;
    try {
        rowsList = lqf.execute(columnMap, selector, constraint, sort, externalSort, offset, limit);
    } catch (IOException e) {
        throw new RepositoryException("Failed to access the query index", e);
    }
    // Added by jahia
    QueryResult result;
    if (rowsList.size() > 0 && rowsList.get(0) instanceof FacetRow) {
        FacetRow facets = (FacetRow) rowsList.remove(0);
        RowIterator rows = new RowIteratorAdapter(rowsList);
        return new FacetedQueryResult(columnNames, selectorNames, rows, facets);
    } else {
        RowIterator rows = new RowIteratorAdapter(rowsList);
        result = new JahiaSimpleQueryResult(columnNames, selectorNames, rows);
        if (nativeSort) {
            return result;
        }
        long timeSort = System.currentTimeMillis();
        QueryResult r = sort(result, orderings, evaluator, offset, limit);
        if (log.isDebugEnabled()) {
            log.debug("{}SQL2 SORT took {} ms.", genString(printIndentation),
                    System.currentTimeMillis() - timeSort);
        }
        if (r != result) {
            return new JahiaSimpleQueryResult(columnNames, selectorNames, r.getRows(),
                    limit > 0 ? result.getRows().getSize() : 0);
        }
        return result;
    }
}

From source file:org.apache.jackrabbit.core.query.lucene.join.QueryEngine.java

License:Apache License

protected QueryResult execute(Column[] columns, Selector selector, Constraint constraint, Ordering[] orderings,
        long offset, long limit, int printIndentation) throws RepositoryException {
    long time = System.currentTimeMillis();

    Map<String, NodeType> selectorMap = getSelectorNames(selector);
    String[] selectorNames = selectorMap.keySet().toArray(new String[selectorMap.size()]);

    Map<String, PropertyValue> columnMap = getColumnMap(columns, selectorMap);
    String[] columnNames = columnMap.keySet().toArray(new String[columnMap.size()]);

    Sort sort = new Sort();
    if (NATIVE_SORT) {
        sort = new Sort(createSortFields(orderings, session));
    }//from w w w  .j a  v  a2s.  c om

    // if true it means that the LuceneQueryFactory should just let the
    // QueryEngine take care of sorting and applying offset and limit
    // constraints
    boolean externalSort = !NATIVE_SORT;
    RowIterator rows = null;
    try {
        rows = new RowIteratorAdapter(
                lqf.execute(columnMap, selector, constraint, sort, externalSort, offset, limit));
    } catch (IOException e) {
        throw new RepositoryException("Failed to access the query index", e);
    } finally {
        log.debug("{}SQL2 SELECT took {} ms. selector: {}, columns: {}, constraint: {}, offset {}, limit {}",
                new Object[] { genString(printIndentation), System.currentTimeMillis() - time, selector,
                        Arrays.toString(columnNames), constraint, offset, limit });
    }
    QueryResult result = new SimpleQueryResult(columnNames, selectorNames, rows);
    if (NATIVE_SORT) {
        return result;
    }

    long timeSort = System.currentTimeMillis();
    QueryResult sorted = sort(result, orderings, evaluator, offset, limit);
    log.debug("{}SQL2 SORT took {} ms.", genString(printIndentation), System.currentTimeMillis() - timeSort);
    return sorted;
}