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

Introduction

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

Prototype

MatchAllDocsQuery

Source Link

Usage

From source file:DVBench.java

License:Apache License

static long search(String description, IndexSearcher searcher, String field, int iters, boolean quiet)
        throws Exception {
    int count = 0;
    Query query = new MatchAllDocsQuery();
    Sort sort = new Sort(new SortField(field, SortField.Type.LONG));
    long startTime = System.currentTimeMillis();
    for (int i = 0; i < iters; i++) {
        TopDocs td = searcher.search(query, 20, sort);
        count += td.totalHits;// ww w  . ja  va2  s  .c  om
    }
    long endTime = System.currentTimeMillis();
    if (!quiet) {
        double delta = endTime - startTime;
        double avg = delta / iters;
        double QPS = 1000d / avg;
        System.out.println(description + ": " + QPS);
    }
    return count;
}

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From source file:aos.lucene.search.advanced.FilterTest.java

License:Apache License

protected void setUp() throws Exception { //
    allBooks = new MatchAllDocsQuery();
    dir = TestUtil.getBookIndexDirectory();
    searcher = new IndexSearcher(dir);
}

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From source file:aos.lucene.search.advanced.SortingExample.java

License:Apache License

public static void main(String[] args) throws Exception {
    Query allBooks = new MatchAllDocsQuery();

    QueryParser parser = new QueryParser(Version.LUCENE_46, //
            "contents", //
            new StandardAnalyzer( //
                    Version.LUCENE_46)); //
    BooleanQuery query = new BooleanQuery(); //
    query.add(allBooks, BooleanClause.Occur.SHOULD); //
    query.add(parser.parse("java OR action"), BooleanClause.Occur.SHOULD); //

    Directory directory = TestUtil.getBookIndexDirectory(); //
    SortingExample example = new SortingExample(directory); //

    example.displayResults(query, Sort.RELEVANCE);

    example.displayResults(query, Sort.INDEXORDER);

    example.displayResults(query, new Sort(new SortField("category", SortField.STRING)));

    example.displayResults(query, new Sort(new SortField("pubmonth", SortField.INT, true)));

    example.displayResults(query, new Sort(new SortField("category", SortField.STRING), SortField.FIELD_SCORE,
            new SortField("pubmonth", SortField.INT, true)));

    example.displayResults(query,//  ww w.ja va  2s  .  c o  m
            new Sort(new SortField[] { SortField.FIELD_SCORE, new SortField("category", SortField.STRING) }));
    directory.close();
}

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From source file:aos.lucene.search.advanced.SpanQueryTest.java

License:Apache License

public void testSpanQueryFilter() throws Exception {
      SpanQuery[] quick_brown_dog = new SpanQuery[] { quick, brown, dog };
      SpanQuery snq = new SpanNearQuery(quick_brown_dog, 5, true);
      Filter filter = new SpanQueryFilter(snq);

      Query query = new MatchAllDocsQuery();
      TopDocs hits = searcher.search(query, filter, 10);
      assertEquals(1, hits.totalHits);//w  w  w.ja  v a2  s. c  o m
      assertEquals("wrong doc", 0, hits.scoreDocs[0].doc);
  }

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From source file:aos.lucene.search.advanced.TimeLimitingCollectorTest.java

License:Apache License

public void testTimeLimitingCollector() throws Exception {
    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);
    Query q = new MatchAllDocsQuery();
    int numAllBooks = TestUtil.hitCount(searcher, q);

    TopScoreDocCollector topDocs = TopScoreDocCollector.create(10, false);
    Collector collector = new TimeLimitingCollector(topDocs, // #A
            1000); // #A
    try {//from w  w  w . j a  v a2s .  c  o m
        searcher.search(q, collector);
        assertEquals(numAllBooks, topDocs.getTotalHits()); // #B
    } catch (TimeExceededException tee) { // #C
        LOGGER.info("Too much time taken."); // #C
    } // #C
    searcher.close();
    dir.close();
}

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From source file:aos.lucene.search.ext.filters.SpecialsFilterTest.java

License:Apache License

@Override
protected void setUp() throws Exception {
    allBooks = new MatchAllDocsQuery();
    searcher = new IndexSearcher(TestUtil.getBookIndexDirectory(), true);
}

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From source file:bzh.terrevirtuelle.navisu.gazetteer.impl.lucene.GeoNameResolver.java

License:Apache License

/**
 * Returns a list of location near a certain coordinate.
 *
 * @param latitude, @param longitude - Center of search area
 * @param distanceInMiles - Search Radius in miles
 * @param indexerPath - Path to Lucene index
 * @param count - Upper bound to number of results
 * @return - List of locations sorted by population
 * @throws IOException/*w  ww. j  a  v  a2 s  .c om*/
 */
public List<Location> searchNearby(Double latitude, Double longitude, Double distanceInMiles,
        String indexerPath, int count) throws IOException {

    double distanceInDeg = DistanceUtils.dist2Degrees(distanceInMiles,
            DistanceUtils.EARTH_EQUATORIAL_RADIUS_MI);
    SpatialArgs spatialArgs = new SpatialArgs(SpatialOperation.IsWithin,
            ctx.makeCircle(longitude, latitude, distanceInDeg));

    String key = latitude + "-" + longitude;
    Filter filter = strategy.makeFilter(spatialArgs);

    IndexSearcher searcher = new IndexSearcher(createIndexReader(indexerPath));
    Sort sort = new Sort(populationSort);
    TopDocs topDocs = searcher.search(new MatchAllDocsQuery(), filter, count, sort);

    ScoreDoc[] scoreDocs = topDocs.scoreDocs;
    HashMap<String, List<Location>> allCandidates = new HashMap<String, List<Location>>();

    getMatchingCandidates(searcher, allCandidates, key, scoreDocs);
    List<Location> results = allCandidates.get(key);

    return results;
}

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From source file:cc.osint.graphd.graph.Graph.java

License:Apache License

public List<JSONObject> query(IndexSearcher indexSearcher, String queryStr) throws Exception {
    long start_t = System.currentTimeMillis();
    final List<JSONObject> results = new ArrayList<JSONObject>();
    QueryParser qp = new QueryParser(Version.LUCENE_31, KEY_FIELD, analyzer);
    qp.setDefaultOperator(org.apache.lucene.queryParser.QueryParser.Operator.AND);
    qp.setAllowLeadingWildcard(true);/*from w  w  w .j a  v a2  s .com*/
    Query query = qp.parse(queryStr);
    org.apache.lucene.search.Filter filter = new org.apache.lucene.search.CachingWrapperFilter(
            new QueryWrapperFilter(query));

    indexSearcher.search(new MatchAllDocsQuery(), filter, new Collector() {
        private int docBase;
        IndexReader reader;

        // ignore scoring
        public void setScorer(Scorer scorer) {
        }

        // accept docs out of order
        public boolean acceptsDocsOutOfOrder() {
            return true;
        }

        public void collect(int doc) {
            try {
                Document d = reader.document(doc);
                JSONObject result = new JSONObject();
                for (Fieldable f : d.getFields()) {
                    result.put(f.name(), d.get(f.name()));
                }
                results.add(result);
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }

        public void setNextReader(IndexReader reader, int docBase) {
            this.reader = reader;
            this.docBase = docBase;
        }
    });
    long end_t = System.currentTimeMillis();
    //log.info("query: hits.scoreDocs.length = " + results.size() + " (" + (end_t-start_t) + "ms)");
    return results;
}

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From source file:cn.hbu.cs.esearch.service.impl.EsearchSearchServiceImpl.java

License:Apache License

@Override
public SearchResult search(SearchRequest sResquest) throws EsearchException {
    try {// www.  j  a  va2 s  .co  m
        esearchSystem.flushEvents(2000);
    } catch (EsearchException e) {
        LOGGER.error("Esearch flush events error. \n{}", e);
    }
    String queryString = sResquest.getQuery();
    String queryField = sResquest.getField();
    LOGGER.info("The search request coming: queryField:{},queryString:{}", queryField, queryString);

    Analyzer analyzer = esearchSystem.getAnalyzer();
    QueryParser queryParser = new QueryParser(Version.LUCENE_43, queryField, analyzer);
    SearchResult result = new SearchResult();

    List<EsearchMultiReader<R>> readers = null;
    MultiReader multiReader = null;
    IndexSearcher searcher = null;
    try {
        Query query = null;
        if (Strings.isNullOrEmpty(queryString)) {
            query = new MatchAllDocsQuery();
        } else {
            query = queryParser.parse(queryString);
        }
        readers = esearchSystem.getIndexReaders();
        multiReader = new MultiReader(readers.toArray(new IndexReader[readers.size()]), false);
        searcher = new IndexSearcher(multiReader);
        long start = System.currentTimeMillis();
        TopDocs docs = searcher.search(query, null, sResquest.getSize());
        long end = System.currentTimeMillis();

        result.setTime(end - start);
        result.setTotalDocs(multiReader.numDocs());
        result.setTotalHits(docs.totalHits);

        LOGGER.info("Got {} hits. Cost:{} ms", docs.totalHits, end - start);

        if (sResquest.getSearchType() == SearchRequest.SearchType.COUNT) {
            return result;
        }

        ScoreDoc[] scoreDocs = docs.scoreDocs;
        ArrayList<SearchHit> hitList = new ArrayList<SearchHit>(scoreDocs.length);
        for (ScoreDoc scoreDoc : scoreDocs) {
            SearchHit hit = new SearchHit();
            hit.setScore(scoreDoc.score);
            int docID = scoreDoc.doc;

            Document doc = multiReader.document(docID);
            String content = doc.get(queryField);

            Scorer qs = new QueryScorer(query);

            SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<span class=\"hl\">", "</span>");
            Highlighter hl = new Highlighter(formatter, qs);
            String[] fragments = hl.getBestFragments(analyzer, queryField, content, 1);

            Map<String, String[]> fields = convert(doc, sResquest.getSearchType());
            fields.put("fragment", fragments);
            hit.setFields(fields);
            hitList.add(hit);
        }
        result.setHits(hitList.toArray(new SearchHit[hitList.size()]));
        return result;
    } catch (Exception e) {
        LOGGER.error(e.getMessage(), e);
        throw new EsearchException(e.getMessage(), e);
    } finally {
        if (multiReader != null) {
            try {
                multiReader.close();
            } catch (IOException e) {
                LOGGER.error(e.getMessage(), e);
            }
        }
        esearchSystem.returnIndexReaders(readers);
    }
}

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From source file:com.baidu.rigel.biplatform.tesseract.isservice.netty.service.SearchServerHandler.java

License:Open Source License

@Override
public void messageReceived(ChannelHandlerContext ctx, Object msg) throws Exception {
    SearchRequestMessage searchReqeustMessage = (SearchRequestMessage) msg;

    String idxPath = searchReqeustMessage.getIdxPath();
    SearcherManager searcherManager = IndexSearcherFactory.getInstance().getSearcherManager(idxPath);
    IndexSearcher is = null;//from  ww  w .  java2s.  c o m
    is = searcherManager.acquire();

    QueryRequest queryRequest = (QueryRequest) searchReqeustMessage.getMessageBody();
    Query queryAll = QueryRequestUtil.transQueryRequest2LuceneQuery(queryRequest);

    List<String> measureFieldList = new ArrayList<String>();
    List<String> dimFieldList = new ArrayList<String>();
    if (queryRequest.getSelect().getQueryMeasures() != null) {
        for (QueryMeasure qm : queryRequest.getSelect().getQueryMeasures()) {
            measureFieldList.add(qm.getProperties());
        }
    }

    if (queryRequest.getSelect().getQueryProperties() != null) {
        dimFieldList.addAll(queryRequest.getSelect().getQueryProperties());
    }

    TesseractResultSet searchResult = null;
    LinkedList<ResultRecord> resultRecordList = new LinkedList<ResultRecord>();
    long current = System.currentTimeMillis();
    try {
        QueryWrapperFilter filter = new QueryWrapperFilter(queryAll);
        Set<String> groupBy = new HashSet<>();
        if (queryRequest.getGroupBy() != null) {
            groupBy = queryRequest.getGroupBy().getGroups();
        }
        TesseractResultRecordCollector collector = new TesseractResultRecordCollector(
                dimFieldList.toArray(new String[0]), measureFieldList.toArray(new String[0]), groupBy);

        is.search(new MatchAllDocsQuery(), filter, collector);
        //            for (int docId : collector.getResultDocIdList()) {
        //                Document doc = is.getIndexReader().document(docId);
        //                ResultRecord record = new ResultRecord(doc);
        //                // ???
        //                // List<ResultRecord> recordList =
        //                // QueryRequestUtil.mapLeafValue2ValueOfRecord(record,
        //                // leafValueMap);
        //                
        //                resultRecordList.add(record);
        //                
        //            }
        logger.info("cost " + (System.currentTimeMillis() - current) + " in search,result:"
                + collector.getResult().size());
        current = System.currentTimeMillis();
        resultRecordList.addAll(collector.getResult());
    } finally {
        searcherManager.release(is);
    }

    // process result
    // group by
    if (queryRequest.getGroupBy() != null) {
        int dimSize = queryRequest.getSelect().getQueryProperties().size();
        searchResult = new SearchResultSet(AggregateCompute.aggregate(resultRecordList, dimSize,
                queryRequest.getSelect().getQueryMeasures()));
    } else {
        searchResult = new SearchResultSet(resultRecordList);
    }

    logger.info("cost " + (System.currentTimeMillis() - current)
            + " in result group by and prepare netty message.");
    current = System.currentTimeMillis();
    MessageHeader mh = new MessageHeader(NettyAction.NETTY_ACTION_SEARCH_FEEDBACK,
            Md5Util.encode(searchResult.toString()));
    SearchResultMessage searchResultMessage = new SearchResultMessage(mh, searchResult);
    ctx.writeAndFlush(searchResultMessage);
}

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