Example usage for org.apache.lucene.search IndexSearcher doc

Introduction

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

Prototype

public Document doc(int docID) throws IOException 

Source Link

Document

Sugar for .getIndexReader().document(docID)

Usage

From source file:com.berico.clavin.resolver.impl.lucene.LuceneUtils.java

License:Apache License

/**
 * Convert a set of Lucene Document Results into a list of
 * ResolvedCoordinates.//from   w  ww  .  ja v a 2 s  . co m
 * @param occurrence the CoordinateOccurrence in the document.
 * @param searcher the Lucene Searcher that retrieved the results.
 * @param results the Search results context
 * @param components LuceneComponents (specifically, the spatial components
 * needed to calculate vectors).
 * @return a List of ResolvedCoordinates.
 * @throws Exception 
 */
public static List<ResolvedCoordinate> convertToCoordinate(CoordinateOccurrence<?> occurrence,
        IndexSearcher searcher, TopDocs results, LuceneComponents components) throws Exception {

    // Results
    ArrayList<ResolvedCoordinate> resolvedCoordinates = new ArrayList<ResolvedCoordinate>();

    // Grab the Lucene spatial context
    SpatialContext spatialContext = components.getSpatialContext();

    // If we have results
    if (results.scoreDocs.length > 0) {

        // Get the center coordinate of the location occurrence
        LatLon center = occurrence.convertToLatLon();

        // Convert to a Spatial4j point
        Point occurrencePoint = spatialContext.makePoint(center.getLongitude(), center.getLatitude());

        // Iterate over the results
        for (int i = 0; i < results.scoreDocs.length; i++) {

            // Grab the document from Lucene
            Document doc = searcher.doc(results.scoreDocs[i].doc);

            // Get the Place record
            Place record = dehydrate(doc);

            // Get the centroid of the Place
            String positionOfLocation = doc.get(FieldConstants.GEOMETRY);

            // TODO: Spatial4J supposedly has a ShapeReaderWriter implementation
            // that we should be using instead.
            @SuppressWarnings("deprecation")
            Point point = (Point) spatialContext.readShape(positionOfLocation);

            // Calculate the distance
            double distanceInDegrees = spatialContext.getDistCalc().distance(point, occurrencePoint);

            double distanceInKm = DistanceUtils.degrees2Dist(distanceInDegrees,
                    DistanceUtils.EARTH_MEAN_RADIUS_KM);

            // Calculate the direction
            double direction = calculateDirection(point.getX(), point.getY(), occurrencePoint.getX(),
                    occurrencePoint.getY());

            // Add the ResolvedCoordinate to the list.
            resolvedCoordinates
                    .add(new ResolvedCoordinate(occurrence, record, new Vector(distanceInKm, direction)));
        }
    }

    return resolvedCoordinates;
}

---

From source file:com.berico.clavin.resolver.impl.lucene.LuceneUtils.java

License:Apache License

/**
 * Convert a set of Lucene Document Results into a list of ResolvedLocations.
 * @param occurrence LocationOccurrence in the document.
 * @param searcher the Lucene Searcher used to find the locations.
 * @param results the results of the Lucene Search
 * @param usingFuzzy whether fuzzy matching was used
 * @return List of ResolvedLocations//from   w ww .j a v a 2 s.  c o m
 * @throws IOException
 */
public static List<ResolvedLocation> convertToLocations(LocationOccurrence occurrence, IndexSearcher searcher,
        TopDocs results, boolean usingFuzzy) throws IOException {

    ArrayList<ResolvedLocation> locations = new ArrayList<ResolvedLocation>();

    if (results.scoreDocs.length > 0) {

        for (int i = 0; i < results.scoreDocs.length; i++) {

            Document doc = searcher.doc(results.scoreDocs[i].doc);

            ResolvedLocation location = convertToLocation(doc, occurrence, usingFuzzy);

            locations.add(location);
        }
    }

    return locations;
}

---

From source file:com.bewsia.script.LuceneHandler.java

License:Open Source License

public void load(String id, SEntity src) {
    try {/*from  ww  w  .ja va2s .com*/
        IndexReader reader = IndexReader.open(FSDirectory.open(new File(dirIndex)));
        IndexSearcher searcher = new IndexSearcher(reader);
        TopDocs td = searcher.search(new TermQuery(new Term(SEntity.ID, id)), 1);
        if (td.totalHits > 0) {
            Document doc = searcher.doc(td.scoreDocs[0].doc);
            if (allowLoad(id, doc.get(SEntity.KIND))) {
                src.setSchema(doc.get(SEntity.SCHEMA));
                read(src, doc);
            }
        }
        searcher.close();
        reader.close();
    } catch (Exception e) {
    }
}

---

From source file:com.bewsia.script.LuceneHandler.java

License:Open Source License

public List<SEntity> search(String kind, Query query, Filter filter, Sort sort, int max) {
    List<SEntity> tag = new ArrayList<SEntity>();
    try {//from w w  w.  java  2  s .c  om
        IndexReader reader = IndexReader.open(FSDirectory.open(new File(dirIndex)));
        IndexSearcher searcher = new IndexSearcher(reader);
        BooleanQuery boolQuery = new BooleanQuery();
        boolQuery.add(new BooleanClause(new TermQuery(new Term(SEntity.KIND, kind)), Occur.MUST));
        if (query != null) {
            boolQuery.add(new BooleanClause(query, Occur.MUST));
        }
        TopDocs td = null;
        if (filter != null && sort != null) {
            td = searcher.search(boolQuery, filter, max, sort);
        } else if (filter != null) {
            td = searcher.search(boolQuery, filter, max);
        } else if (sort != null) {
            td = searcher.search(boolQuery, max, sort);
        } else {
            td = searcher.search(boolQuery, max);
        }
        for (int i = 0; i < td.totalHits; i++) {
            SEntity item = new SEntity(this);
            Document doc = searcher.doc(td.scoreDocs[i].doc);
            item.setSchema(doc.get(SEntity.SCHEMA));
            read(item, doc);
            tag.add(item);
        }
        searcher.close();
        reader.close();
    } catch (Exception e) {
    }
    return tag;
}

---

From source file:com.bewsia.script.LuceneHandler.java

License:Open Source License

public List<SEntity> search(String kind, Query query, Filter filter, Sort sort, int pagesize, int pageno) {
    List<SEntity> tag = new ArrayList<SEntity>();
    try {/* ww w  .j a va  2 s .  co m*/
        IndexReader reader = IndexReader.open(FSDirectory.open(new File(dirIndex)));
        IndexSearcher searcher = new IndexSearcher(reader);
        BooleanQuery boolQuery = new BooleanQuery();
        boolQuery.add(new BooleanClause(new TermQuery(new Term(SEntity.KIND, kind)), Occur.MUST));
        if (query != null) {
            boolQuery.add(new BooleanClause(query, Occur.MUST));
        }
        if (pagesize <= 0)
            pagesize = 10;
        if (pageno <= 0)
            pageno = 1;
        int max = pageno * pagesize;
        TopDocs td = null;
        if (filter != null && sort != null) {
            td = searcher.search(boolQuery, filter, max, sort);
        } else if (filter != null) {
            td = searcher.search(boolQuery, filter, max);
        } else if (sort != null) {
            td = searcher.search(boolQuery, max, sort);
        } else {
            td = searcher.search(boolQuery, max);
        }
        for (int i = (pageno - 1) * pagesize; i < td.totalHits && i < max; i++) {
            SEntity item = new SEntity(this);
            Document doc = searcher.doc(td.scoreDocs[i].doc);
            item.setSchema(doc.get(SEntity.SCHEMA));
            read(item, doc);
            tag.add(item);
        }
        searcher.close();
        reader.close();
    } catch (Exception e) {
    }
    return tag;
}

---

From source file:com.bewsia.script.LuceneHandler.java

License:Open Source License

protected void deleteEntity(String id) {
    if (id.length() == 0)
        return;// w ww . j  a v a 2  s .  c om
    String kind = "";

    try {
        IndexReader reader = IndexReader.open(FSDirectory.open(new File(dirIndex)));
        IndexSearcher searcher = new IndexSearcher(reader);
        TopDocs td = searcher.search(new TermQuery(new Term(SEntity.ID, id)), 1);
        if (td.totalHits > 0) {
            Document doc = searcher.doc(td.scoreDocs[0].doc);
            kind = doc.get(SEntity.KIND);
        }
        searcher.close();
        reader.close();
    } catch (Exception e) {
    }
    if (kind.length() == 0)
        return;
    if (!allowDelete(id, kind))
        return;

    try {
        if (!kind.equals(KIND_QUOTA)) {
            if (!quotaDelete(id, kind))
                return;
        }
        removeBackup(id, kind);
        Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_36);
        IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_36, analyzer);
        iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
        IndexWriter writer = new IndexWriter(FSDirectory.open(new File(dirIndex)), iwc);
        writer.deleteDocuments(new Term(SEntity.ID, id));
        writer.close();
    } catch (Exception e) {
    }
}

---

From source file:com.bitranger.parknshop.common.fulltext.SearchCustomer.java

License:Open Source License

public List<PsCustomer> search(String value) throws IOException {
    // get the index
    IndexReader reader = DirectoryReader.open(FSDirectory.open(BuildIndexForItem.getIndexFile()));
    // use this to search
    IndexSearcher indexSearcher = new IndexSearcher(reader);
    // use the queryParser to wrap your request
    QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_45, queryString, analyzer);

    List<PsCustomer> customer = new ArrayList<PsCustomer>();

    Query query = null;//w w  w .j  a va2 s.c o m
    try {
        query = queryParser.parse("title:" + value + "~");
    } catch (ParseException e) {
        e.printStackTrace();
    }
    // we get what we want in the topdocs
    TopDocs topDocs = indexSearcher.search(query, 25);
    System.out.println(":" + topDocs.totalHits + "");
    // ScoreDoc[] scoreDoc = topDocs.scoreDocs;
    for (int i = 0; i < topDocs.scoreDocs.length; i++) {
        Document resultDocument = indexSearcher.doc(topDocs.scoreDocs[i].doc);
        PsCustomer mycustomer = new PsCustomer();
        mycustomer.setNickname(resultDocument.get((indexField[0])));
        mycustomer.setEmail(resultDocument.get((indexField[1])));
        mycustomer.setPassword(resultDocument.get((indexField[2])));
        mycustomer.setGender(Short.valueOf(resultDocument.get((indexField[3]))));
        mycustomer.setName(resultDocument.get((indexField[4])));
        customer.add(mycustomer);

    }
    return customer;
}

---

From source file:com.bitranger.parknshop.common.fulltext.SearchItem.java

License:Open Source License

public List<PsItem> search(String value) throws IOException {
    // get the index
    IndexReader reader = DirectoryReader.open(FSDirectory.open(BuildIndexForItem.getIndexFile()));
    // use this to search
    IndexSearcher indexSearcher = new IndexSearcher(reader);
    // use the queryParser to wrap your request
    QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_45, queryString, analyzer);

    List<PsItem> item = new ArrayList<PsItem>();

    Query query = null;// www.jav  a 2 s  .  com
    try {
        query = queryParser.parse("title:" + value + "~");
    } catch (ParseException e) {
        e.printStackTrace();
    }
    // we get what we want in the topdocs
    TopDocs topDocs = indexSearcher.search(query, 25);
    System.out.println(":" + topDocs.totalHits + "");
    // ScoreDoc[] scoreDoc = topDocs.scoreDocs;
    for (int i = 0; i < topDocs.scoreDocs.length; i++) {
        Document resultDocument = indexSearcher.doc(topDocs.scoreDocs[i].doc);
        PsItem myitem = new PsItem();
        myitem.setName(resultDocument.get((indexField[0])));
        myitem.setIntroduction(resultDocument.get((indexField[1])));
        myitem.setPrice(Double.valueOf(resultDocument.get((indexField[2]))));
        myitem.setUrlPicture(resultDocument.get((indexField[3])));
        myitem.setExtra1(resultDocument.get((indexField[4])));
        myitem.setExtra2(resultDocument.get((indexField[5])));
        myitem.setCountPurchase(Integer.valueOf(resultDocument.get((indexField[6]))));
        myitem.setCountFavourite(Integer.valueOf(resultDocument.get((indexField[7]))));
        myitem.setCountClick(Integer.valueOf(resultDocument.get((indexField[8]))));
        myitem.setVote(Double.valueOf(resultDocument.get((indexField[9]))));
        item.add(myitem);

    }
    return item;
}

---

From source file:com.bitranger.parknshop.common.fulltext.SearchOrder.java

License:Open Source License

public List<PsOrder> search(String value) throws IOException {
    // get the index
    IndexReader reader = DirectoryReader.open(FSDirectory.open(BuildIndexForItem.getIndexFile()));
    // use this to search
    IndexSearcher indexSearcher = new IndexSearcher(reader);
    // use the queryParser to wrap your request
    QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_45, queryString, analyzer);

    List<PsOrder> order = new ArrayList<PsOrder>();

    Query query = null;//  w  ww  .j a  va  2  s  .  co m
    try {
        query = queryParser.parse("title:" + value + "~");
    } catch (ParseException e) {
        e.printStackTrace();
    }
    // we get what we want in the topdocs
    TopDocs topDocs = indexSearcher.search(query, 25);
    System.out.println(":" + topDocs.totalHits + "");
    // ScoreDoc[] scoreDoc = topDocs.scoreDocs;
    for (int i = 0; i < topDocs.scoreDocs.length; i++) {
        Document resultDocument = indexSearcher.doc(topDocs.scoreDocs[i].doc);
        PsOrder myorder = new PsOrder();
        myorder.setId(Integer.valueOf(resultDocument.get((indexField[0]))));
        myorder.setStatus(Short.valueOf(resultDocument.get((indexField[3]))));
        myorder.setTrackingNumber(resultDocument.get((indexField[4])));
        myorder.setPriceTotal(Double.valueOf(resultDocument.get((indexField[9]))));
        order.add(myorder);

    }
    return order;
}

---

From source file:com.bitranger.parknshop.common.fulltext.SearchSeller.java

License:Open Source License

public List<PsSeller> search(String value) throws IOException {
    // get the index
    IndexReader reader = DirectoryReader.open(FSDirectory.open(BuildIndexForItem.getIndexFile()));
    // use this to search
    IndexSearcher indexSearcher = new IndexSearcher(reader);
    // use the queryParser to wrap your request
    QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_45, queryString, analyzer);

    List<PsSeller> seller = new ArrayList<PsSeller>();

    Query query = null;/*  w  w  w  .j  a va2 s. c o  m*/
    try {
        query = queryParser.parse("title:" + value + "~");
    } catch (ParseException e) {
        e.printStackTrace();
    }
    // we get what we want in the topdocs
    TopDocs topDocs = indexSearcher.search(query, 25);
    System.out.println(":" + topDocs.totalHits + "");
    // ScoreDoc[] scoreDoc = topDocs.scoreDocs;
    for (int i = 0; i < topDocs.scoreDocs.length; i++) {
        Document resultDocument = indexSearcher.doc(topDocs.scoreDocs[i].doc);
        PsSeller myseller = new PsSeller();
        myseller.setId(Integer.valueOf(resultDocument.get((indexField[0]))));
        myseller.setNickname(resultDocument.get((indexField[1])));
        myseller.setPersonIdNum(resultDocument.get((indexField[2])));
        myseller.setEmail(resultDocument.get((indexField[3])));
        myseller.setPassword(resultDocument.get((indexField[4])));
        myseller.setStatus(Short.valueOf(resultDocument.get((indexField[5]))));
        seller.add(myseller);

    }
    return seller;
}

---

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