Example usage for org.apache.lucene.index IndexReader close

Introduction

In this page you can find the example usage for org.apache.lucene.index IndexReader close.

Prototype

@Override
public final synchronized void close() throws IOException 

Source Link

Document

Closes files associated with this index.

Usage

From source file:com.silverwrist.dynamo.index.IndexServiceImpl.java

License:Mozilla Public License

private final List doQuery(Query query, int offset, int count) throws IndexException {
    SubsetCollector subc = new SubsetCollector(offset, count + 1);
    List rc = null;/*www  .  j  av a2  s .  c o  m*/
    IndexReader irdr = null;
    IndexSearcher srch = null;
    try { // run that puppy!
        irdr = IndexReader.open(m_directory);
        srch = new IndexSearcher(irdr);
        if (query == null)
            visitAllDocuments(srch, subc);
        else
            srch.search(query, subc);
        rc = subc.outputItems(irdr);

    } // end try
    catch (IOException e) { // the query failed somehow - throw an error
        throw new IndexException(IndexServiceImpl.class, "IndexMessages", "query.fail", e);

    } // end catch
    finally { // make sure we close down OK
        try { // close the search and index reader
            if (srch != null)
                srch.close();
            if (irdr != null)
                irdr.close();

        } // end try
        catch (IOException e) { // shouldn't happen
            logger.warn("query(): error closing stuff", e);

        } // end catch

    } // end finally

    return rc;

}

---

From source file:com.silverwrist.dynamo.index.IndexServiceImpl.java

License:Mozilla Public License

public boolean deleteItem(String item_namespace, String item_name, Object item) throws IndexException {
    // Create a Lucene Term matching the given document.
    Term term = new Term("id", createTag(item_namespace, item_name, item));

    try { // Use an IndexReader to delete the appropriate document.
        IndexReader irdr = IndexReader.open(m_directory);
        int ndel = irdr.delete(term);
        irdr.close();
        return (ndel > 0);

    } // end try/*from w  ww. j av  a2 s.  c  om*/
    catch (IOException e) { // translate Lucene's IOException here
        IndexException ie = new IndexException(IndexServiceImpl.class, "IndexMessages", "deleteItem.fail", e);
        ie.setParameter(0, item_namespace);
        ie.setParameter(1, item_name);
        ie.setParameter(2, m_identity.toString());
        throw ie;

    } // end catch

}

---

From source file:com.sindicetech.siren.search.node.TestNodeFuzzyQuery.java

License:Open Source License

/**
 * MultiTermQuery provides (via attribute) information about which values
 * must be competitive to enter the priority queue.
 *
 * FuzzyQuery optimizes itself around this information, if the attribute
 * is not implemented correctly, there will be problems!
 *//*from   ww  w  .ja  v  a  2s. co  m*/
public void testTieBreaker() throws Exception {
    this.addDocument("<a123456>");
    this.addDocument("<c123456>");
    this.addDocument("<d123456>");
    this.addDocument("<e123456>");

    final Directory directory2 = newDirectory();
    final RandomIndexWriter writer2 = newRandomIndexWriter(directory2, analyzer, codec);
    addDocument(writer2, "<a123456>");
    addDocument(writer2, "<b123456>");
    addDocument(writer2, "<b123456>");
    addDocument(writer2, "<b123456>");
    addDocument(writer2, "<c123456>");
    addDocument(writer2, "<f123456>");

    final IndexReader ir1 = writer.getReader();
    final IndexReader ir2 = writer2.getReader();

    final MultiReader mr = new MultiReader(ir1, ir2);
    final IndexSearcher searcher = newSearcher(mr);
    final FuzzyQuery fq = new FuzzyQuery(new Term(DEFAULT_TEST_FIELD, "z123456"), 1, 0, 2, false);
    final TopDocs docs = searcher.search(fq, 2);
    assertEquals(5, docs.totalHits); // 5 docs, from the a and b's

    mr.close();
    ir2.close();
    writer2.close();
    directory2.close();
}

---

From source file:com.slieer.app.lecene3x.LuceneIndexAndSearchDemo.java

License:Apache License

/**
 *  ???/*from  w  w w  .j  av a 2  s.c o  m*/
 * 
 * @param args
 */
public static void main(String[] args) {
    // Lucene Document??
    String fieldName = "text";
    // 
    String text = "IK Analyzer???????";
    String text1 = "? (Chinese Word Segmentation) ???????????";
    String text2 = "?????,,??,?";

    // IKAnalyzer?
    Analyzer analyzer = new IKAnalyzer(true);

    Directory directory = null;
    IndexWriter iwriter = null;
    IndexReader ireader = null;
    IndexSearcher isearcher = null;
    try {
        // 
        directory = new RAMDirectory();

        // ?IndexWriterConfig
        IndexWriterConfig iwConfig = new IndexWriterConfig(Version.LUCENE_4_9, analyzer);
        iwConfig.setOpenMode(OpenMode.CREATE_OR_APPEND);
        iwriter = new IndexWriter(directory, iwConfig);
        // 
        Document doc = new Document();
        //document.add(new Field("content", content, Field.Store.YES, Field.Index.ANALYZED));
        Field strField = new StringField("ID", "10000", Field.Store.YES);
        Field textFild = new StringField(fieldName, text, Field.Store.YES);
        //textFild.setBoost(2);

        doc.add(strField);
        doc.add(textFild);
        iwriter.addDocument(doc);

        doc = new Document();
        strField = new StringField("ID", "10001", Field.Store.YES);
        textFild = new StringField(fieldName, text1, Field.Store.YES);
        //strField.setBoost(1);
        doc.add(strField);
        doc.add(textFild);
        iwriter.addDocument(doc);

        doc = new Document();
        strField = new StringField("ID", "10002", Field.Store.YES);
        //            textFild = new TextField(fieldName, text2, Field.Store.YES);
        textFild = new StringField(fieldName, text2, Field.Store.YES);
        //strField.setBoost(1);
        doc.add(strField);
        doc.add(textFild);
        iwriter.addDocument(doc);

        iwriter.close();

        // ?**********************************
        // ?
        ireader = DirectoryReader.open(directory);
        isearcher = new IndexSearcher(ireader);

        String keyword = "?";
        // QueryParser?Query
        QueryParser qp = new QueryParser(Version.LUCENE_4_9, fieldName, analyzer);
        qp.setDefaultOperator(QueryParser.AND_OPERATOR);
        Query query = qp.parse(keyword);
        System.out.println("Query = " + query);

        // ?5?
        TopDocs topDocs = isearcher.search(query, 5);
        System.out.println("" + topDocs.totalHits);
        // 
        ScoreDoc[] scoreDocs = topDocs.scoreDocs;
        for (int i = 0; i < topDocs.totalHits; i++) {
            Document targetDoc = isearcher.doc(scoreDocs[i].doc);
            System.out.println("" + targetDoc.toString());
        }

    } catch (CorruptIndexException e) {
        e.printStackTrace();
    } catch (LockObtainFailedException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (ParseException e) {
        e.printStackTrace();
    } finally {
        if (ireader != null) {
            try {
                ireader.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (directory != null) {
            try {
                directory.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

---

From source file:com.slieer.app.lecene3x.SearchFiles.java

License:Apache License

/** Simple command-line based search demo. */
public static void main(String[] args) throws Exception {
    String usage = "Usage:\tjava org.apache.lucene.demo.SearchFiles [-index dir] [-field f] [-repeat n] [-queries file] [-query string] [-raw] [-paging hitsPerPage]\n\nSee http://lucene.apache.org/core/4_1_0/demo/ for details.";
    if (args.length > 0 && ("-h".equals(args[0]) || "-help".equals(args[0]))) {
        System.out.println(usage);
        System.exit(0);/*from   www.j a  v  a 2s  .  c  om*/
    }

    String index = "index";
    String field = "contents";
    String queries = null;
    int repeat = 0;
    boolean raw = false;
    String queryString = null;
    int hitsPerPage = 10;

    for (int i = 0; i < args.length; i++) {
        if ("-index".equals(args[i])) {
            index = args[i + 1];
            i++;
        } else if ("-field".equals(args[i])) {
            field = args[i + 1];
            i++;
        } else if ("-queries".equals(args[i])) {
            queries = args[i + 1];
            i++;
        } else if ("-query".equals(args[i])) {
            queryString = args[i + 1];
            i++;
        } else if ("-repeat".equals(args[i])) {
            repeat = Integer.parseInt(args[i + 1]);
            i++;
        } else if ("-raw".equals(args[i])) {
            raw = true;
        } else if ("-paging".equals(args[i])) {
            hitsPerPage = Integer.parseInt(args[i + 1]);
            if (hitsPerPage <= 0) {
                System.err.println("There must be at least 1 hit per page.");
                System.exit(1);
            }
            i++;
        }
    }

    IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(index)));
    IndexSearcher searcher = new IndexSearcher(reader);
    // :Post-Release-Update-Version.LUCENE_XY:
    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_9);

    BufferedReader in = null;
    if (queries != null) {
        in = new BufferedReader(new InputStreamReader(new FileInputStream(queries), StandardCharsets.UTF_8));
    } else {
        in = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8));
    }
    // :Post-Release-Update-Version.LUCENE_XY:
    QueryParser parser = new QueryParser(Version.LUCENE_4_9, field, analyzer);
    while (true) {
        if (queries == null && queryString == null) { // prompt the user
            System.out.println("Enter query: ");
        }

        String line = queryString != null ? queryString : in.readLine();

        if (line == null || line.length() == -1) {
            break;
        }

        line = line.trim();
        if (line.length() == 0) {
            break;
        }

        Query query = parser.parse(line);
        System.out.println("Searching for: " + query.toString(field));

        if (repeat > 0) { // repeat & time as benchmark
            Date start = new Date();
            for (int i = 0; i < repeat; i++) {
                searcher.search(query, null, 100);
            }
            Date end = new Date();
            System.out.println("Time: " + (end.getTime() - start.getTime()) + "ms");
        }

        doPagingSearch(in, searcher, query, hitsPerPage, raw, queries == null && queryString == null);

        if (queryString != null) {
            break;
        }
    }
    reader.close();
}

---

From source file:com.slieer.lucene.apachedemo.SearchFiles.java

License:Apache License

/** Simple command-line based search demo. */
public static void main(String[] args) throws Exception {
    String usage = "Usage:\tjava org.apache.lucene.demo.SearchFiles [-index dir] [-field f] [-repeat n] [-queries file] [-query string] [-raw] [-paging hitsPerPage]\n\nSee http://lucene.apache.org/core/4_1_0/demo/ for details.";
    if (args.length > 0 && ("-h".equals(args[0]) || "-help".equals(args[0]))) {
        System.out.println(usage);
        System.exit(0);/*  w w  w  .java2s.  c  o m*/
    }

    String index = "index";
    String field = "contents";
    String queries = null;
    int repeat = 0;
    boolean raw = false;
    String queryString = null;
    int hitsPerPage = 10;

    for (int i = 0; i < args.length; i++) {
        if ("-index".equals(args[i])) {
            index = args[i + 1];
            i++;
        } else if ("-field".equals(args[i])) {
            field = args[i + 1];
            i++;
        } else if ("-queries".equals(args[i])) {
            queries = args[i + 1];
            i++;
        } else if ("-query".equals(args[i])) {
            queryString = args[i + 1];
            i++;
        } else if ("-repeat".equals(args[i])) {
            repeat = Integer.parseInt(args[i + 1]);
            i++;
        } else if ("-raw".equals(args[i])) {
            raw = true;
        } else if ("-paging".equals(args[i])) {
            hitsPerPage = Integer.parseInt(args[i + 1]);
            if (hitsPerPage <= 0) {
                System.err.println("There must be at least 1 hit per page.");
                System.exit(1);
            }
            i++;
        }
    }

    IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(index)));
    IndexSearcher searcher = new IndexSearcher(reader);
    // :Post-Release-Update-Version.LUCENE_XY:
    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_47);

    BufferedReader in = null;
    if (queries != null) {
        in = new BufferedReader(new InputStreamReader(new FileInputStream(queries), "UTF-8"));
    } else {
        in = new BufferedReader(new InputStreamReader(System.in, "UTF-8"));
    }
    // :Post-Release-Update-Version.LUCENE_XY:
    QueryParser parser = new QueryParser(Version.LUCENE_47, field, analyzer);
    while (true) {
        if (queries == null && queryString == null) { // prompt the user
            System.out.println("Enter query: ");
        }

        String line = queryString != null ? queryString : in.readLine();

        if (line == null || line.length() == -1) {
            break;
        }

        line = line.trim();
        if (line.length() == 0) {
            break;
        }

        Query query = parser.parse(line);
        System.out.println("Searching for: " + query.toString(field));

        if (repeat > 0) { // repeat & time as benchmark
            Date start = new Date();
            for (int i = 0; i < repeat; i++) {
                searcher.search(query, null, 100);
            }
            Date end = new Date();
            System.out.println("Time: " + (end.getTime() - start.getTime()) + "ms");
        }

        doPagingSearch(in, searcher, query, hitsPerPage, raw, queries == null && queryString == null);

        if (queryString != null) {
            break;
        }
    }
    reader.close();
}

---

From source file:com.soebes.supose.cli.SupoSECLI.java

License:Open Source License

/**
 * The search command./* w  w w.j a  v a 2 s  . co  m*/
 *
 * @param searchCommand
 */
private void runSearch(SearchCommand searchCommand) {
    LOGGER.info("Searching started...");
    String indexDirectory = searchCommand.getIndexName();
    String queryLine = searchCommand.getQuery();
    boolean xml = searchCommand.isXML();
    List<FieldNames> cliFields = searchCommand.getFields();

    SearchRepository searchRepository = new SearchRepository(indexDirectory);

    List<ResultEntry> result = searchRepository.getResult(queryLine);

    if (xml) {
        XStream xstream = new XStream();
        xstream.alias("entry", ResultEntry.class);
        System.out.println(xstream.toXML(result));
    } else {
        System.out.println("Query: '" + queryLine + "'");

        if (cliFields.size() > 0) {
            for (int i = 0; i < cliFields.size(); i++) {
                System.out.print("Field[" + i + "]=" + cliFields.get(i) + " ");
            }
        } else {
            cliFields = new ArrayList<FieldNames>();
            // If nothings is given on command line we have to define
            // default fields which will be printed
            cliFields.add(FieldNames.REVISION);
            cliFields.add(FieldNames.FILENAME);
            cliFields.add(FieldNames.PATH);
            cliFields.add(FieldNames.KIND);
        }

        if (result == null) {
            System.out.println("Somethings has gone wrong. Check the log file output!");
            return;
        }
        System.out.println("Total Hits: " + result.size());

        long count = 1;
        for (ResultEntry item : result) {
            System.out.printf("%6d: ", count);
            for (FieldNames fn : cliFields) {
                if (fn.equals(FieldNames.PROPERTIES)) {
                    // Properties will be put into separate lines
                    System.out.println("");
                    Map<String, String> properties = item.getProperties();
                    for (Map.Entry<String, String> prop : properties.entrySet()) {
                        System.out.println(" --> K:" + prop.getKey() + " V:" + prop.getValue());
                    }
                } else {
                    Object attribute = searchRepository.callGetterByName(item, fn.getValue());
                    System.out.print(fn.name() + ":" + attribute + " ");
                }
            }
            System.out.println("");
            count++;
        }
    }

    IndexReader reader = searchRepository.getReader();
    try {
        reader.close();
    } catch (IOException e) {
        LOGGER.error("Error during closing of the index happened: ", e);
    }
}

---

From source file:com.soebes.supose.core.scan.SearchRepositoryGetQueryTest.java

License:Open Source License

@AfterClass
public void afterClass() throws IOException {
    IndexReader reader = searchRepository.getReader();
    reader.close();
}

---

From source file:com.stimulus.archiva.search.StandardSearch.java

License:Open Source License

public long getTotalMessageCount(Volume volume) throws MessageSearchException {
    if (volume == null)
        throw new MessageSearchException("assertion failure: null volume", logger);
    //logger.debug("get total no emails {indexpath='"+volume.getIndexPath()+"'}");
    int count = 0;
    File indexDir = new File(volume.getIndexPath());
    if (!indexDir.exists())
        return 0;
    IndexReader indexReader = null;
    try {/*from  ww w .j  a va 2s .  c o m*/
        indexReader = IndexReader.open(indexDir);
        count += indexReader.numDocs();
        indexReader.close();
    } catch (IOException e) {
        logger.debug("failed to open index to calculate total email count", e);
        //throw new MessageSearchException("failed to open index to calculate total email count",e,logger);
    }
    return count;
}

---

From source file:com.sun.javaee.blueprints.carstore.search.UpdateIndex.java

License:Berkeley License

public static Document deleteIndex(String indexFile, String sxDocId) throws IOException {

    // get document to update, so data can be added
    SearchIndex si = new SearchIndex();
    si.query(indexFile, sxDocId, "uid");

    Hits hits = si.getHitsNative();//from ww  w .  ja  v  a 2s .  c o  m
    // should only have one return
    if (hits.length() > 1) {
        // exception, should only be one
        throw new IllegalStateException("Should only have one document in index with uid=" + sxDocId);
    }

    Document doc = (Document) hits.doc(0);
    if (bDebug)
        System.out.println("HAVE DOC " + doc);

    // Read index and delete targeted doc through a term
    IndexReader reader = IndexReader.open(indexFile);
    // delete document by term
    int delcnt = reader.deleteDocuments(new Term("uid", sxDocId));
    if (bDebug) {
        System.out.println("return Number of items deleted:" + delcnt);
        int deleted = 0;
        for (int ii = 0; ii < reader.numDocs(); ii++) {
            if (reader.isDeleted(ii)) {
                deleted++;
            }
        }
        if (bDebug)
            System.out.println("Number of deleted items in the whole index:" + deleted);
    }
    reader.close();
    return doc;
}

---

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