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

List of usage examples for org.apache.lucene.index IndexWriter close

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Introduction

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

Prototype

@Override
public void close() throws IOException

Source Link

Document

Closes all open resources and releases the write lock.

Usage

From source file:cc.wikitools.lucene.IndexWikipediaDump.java

License:Apache License

@SuppressWarnings("static-access")
public static void main(String[] args) throws Exception {
    Options options = new Options();
    options.addOption(OptionBuilder.withArgName("path").hasArg().withDescription("bz2 Wikipedia XML dump file")
            .create(INPUT_OPTION));/*from w w w  .  j  av a2s . co m*/
    options.addOption(
            OptionBuilder.withArgName("dir").hasArg().withDescription("index location").create(INDEX_OPTION));
    options.addOption(OptionBuilder.withArgName("num").hasArg()
            .withDescription("maximum number of documents to index").create(MAX_OPTION));
    options.addOption(OptionBuilder.withArgName("num").hasArg().withDescription("number of indexing threads")
            .create(THREADS_OPTION));

    options.addOption(new Option(OPTIMIZE_OPTION, "merge indexes into a single segment"));

    CommandLine cmdline = null;
    CommandLineParser parser = new GnuParser();
    try {
        cmdline = parser.parse(options, args);
    } catch (ParseException exp) {
        System.err.println("Error parsing command line: " + exp.getMessage());
        System.exit(-1);
    }

    if (!cmdline.hasOption(INPUT_OPTION) || !cmdline.hasOption(INDEX_OPTION)) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(IndexWikipediaDump.class.getCanonicalName(), options);
        System.exit(-1);
    }

    String indexPath = cmdline.getOptionValue(INDEX_OPTION);
    int maxdocs = cmdline.hasOption(MAX_OPTION) ? Integer.parseInt(cmdline.getOptionValue(MAX_OPTION))
            : Integer.MAX_VALUE;
    int threads = cmdline.hasOption(THREADS_OPTION) ? Integer.parseInt(cmdline.getOptionValue(THREADS_OPTION))
            : DEFAULT_NUM_THREADS;

    long startTime = System.currentTimeMillis();

    String path = cmdline.getOptionValue(INPUT_OPTION);
    PrintStream out = new PrintStream(System.out, true, "UTF-8");
    WikiClean cleaner = new WikiCleanBuilder().withTitle(true).build();

    Directory dir = FSDirectory.open(new File(indexPath));
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_43, ANALYZER);
    config.setOpenMode(OpenMode.CREATE);

    IndexWriter writer = new IndexWriter(dir, config);
    LOG.info("Creating index at " + indexPath);
    LOG.info("Indexing with " + threads + " threads");

    try {
        WikipediaBz2DumpInputStream stream = new WikipediaBz2DumpInputStream(path);

        ExecutorService executor = Executors.newFixedThreadPool(threads);
        int cnt = 0;
        String page;
        while ((page = stream.readNext()) != null) {
            String title = cleaner.getTitle(page);

            // These are heuristic specifically for filtering out non-articles in enwiki-20120104.
            if (title.startsWith("Wikipedia:") || title.startsWith("Portal:") || title.startsWith("File:")) {
                continue;
            }

            if (page.contains("#REDIRECT") || page.contains("#redirect") || page.contains("#Redirect")) {
                continue;
            }

            Runnable worker = new AddDocumentRunnable(writer, cleaner, page);
            executor.execute(worker);

            cnt++;
            if (cnt % 10000 == 0) {
                LOG.info(cnt + " articles added");
            }
            if (cnt >= maxdocs) {
                break;
            }
        }

        executor.shutdown();
        // Wait until all threads are finish
        while (!executor.isTerminated()) {
        }

        LOG.info("Total of " + cnt + " articles indexed.");

        if (cmdline.hasOption(OPTIMIZE_OPTION)) {
            LOG.info("Merging segments...");
            writer.forceMerge(1);
            LOG.info("Done!");
        }

        LOG.info("Total elapsed time: " + (System.currentTimeMillis() - startTime) + "ms");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        writer.close();
        dir.close();
        out.close();
    }
}

From source file:choco.lucene.IKAnalyzerDemo.java

License:Apache License

public static void main(String[] args) {
    //Lucene Document?? 
    String fieldName = "text";
    // /*w w  w . j av a  2 s. c o m*/
    String text = "IK Analyzer???????";
    //IKAnalyzer? 
    Analyzer analyzer = new IKAnalyzer();
    Directory directory = null;
    IndexWriter iwriter = null;
    IndexReader ireader = null;
    IndexSearcher isearcher = null;
    try {
        // 
        directory = new RAMDirectory();
        //?IndexWriterConfig 
        IndexWriterConfig iwConfig = new IndexWriterConfig(Version.LUCENE_34, analyzer);
        iwConfig.setOpenMode(OpenMode.CREATE_OR_APPEND);
        iwriter = new IndexWriter(directory, iwConfig);
        //          
        Document doc = new Document();
        doc.add(new Field("ID", "10000", Field.Store.YES, Field.Index.NOT_ANALYZED));
        doc.add(new Field(fieldName, text, Field.Store.YES, Field.Index.ANALYZED));
        iwriter.addDocument(doc);
        iwriter.close();
        //?********************************** 
        //? 
        ireader = IndexReader.open(directory);
        isearcher = new IndexSearcher(ireader);
        String keyword = "?";
        //QueryParser?Query 
        QueryParser qp = new QueryParser(Version.LUCENE_34, fieldName, analyzer);
        qp.setDefaultOperator(QueryParser.AND_OPERATOR);
        Query query = qp.parse(keyword);
        //?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:ci6226.buildindex.java

/**
 * @param args the command line arguments
 *///from   ww  w  . j a  v  a2s.  c  o m
public static void main(String[] args) throws FileNotFoundException, IOException, ParseException {
    String file = "/home/steven/Dropbox/workspace/ntu_coursework/ci6226/Assiment/yelpdata/yelp_training_set/yelp_training_set_review.json";
    JSONParser parser = new JSONParser();

    BufferedReader in = new BufferedReader(new FileReader(file));
    //  List<Document> jdocs = new LinkedList<Document>();
    Date start = new Date();
    String indexPath = "./myindex";
    System.out.println("Indexing to directory '" + indexPath + "'...");
    // Analyzer analyzer= new NGramAnalyzer(2,8);
    Analyzer analyzer = new myAnalyzer();

    IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_47, analyzer);
    Directory dir = FSDirectory.open(new File(indexPath));
    // :Post-Release-Update-Version.LUCENE_XY:
    // TODO: try different analyzer,stop words,words steming check size
    //   Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_47);

    // Add new documents to an existing index:
    // iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
    iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
    // Optional: for better indexing performance, if you
    // are indexing many documents, increase the RAM
    // buffer.  But if you do this, increase the max heap
    // size to the JVM (eg add -Xmx512m or -Xmx1g):
    //
    // iwc.setRAMBufferSizeMB(256.0);
    IndexWriter writer = new IndexWriter(dir, iwc);
    //  writer.addDocuments(jdocs);
    int line = 0;
    while (in.ready()) {
        String s = in.readLine();
        Object obj = JSONValue.parse(s);
        JSONObject person = (JSONObject) obj;
        String text = (String) person.get("text");
        String user_id = (String) person.get("user_id");
        String business_id = (String) person.get("business_id");
        String review_id = (String) person.get("review_id");
        JSONObject votes = (JSONObject) person.get("votes");
        long funny = (Long) votes.get("funny");
        long cool = (Long) votes.get("cool");
        long useful = (Long) votes.get("useful");
        Document doc = new Document();
        Field review_idf = new StringField("review_id", review_id, Field.Store.YES);
        doc.add(review_idf);
        Field business_idf = new StringField("business_id", business_id, Field.Store.YES);
        doc.add(business_idf);

        //http://qindongliang1922.iteye.com/blog/2030639
        FieldType ft = new FieldType();
        ft.setIndexed(true);//  
        ft.setStored(true);//  
        ft.setStoreTermVectors(true);
        ft.setTokenized(true);
        ft.setStoreTermVectorPositions(true);//?  
        ft.setStoreTermVectorOffsets(true);//???  

        Field textf = new Field("text", text, ft);

        doc.add(textf);
        //    Field user_idf = new StringField("user_id", user_id, Field.Store.YES);
        //     doc.add(user_idf);
        //      doc.add(new LongField("cool", cool, Field.Store.YES));
        //      doc.add(new LongField("funny", funny, Field.Store.YES));
        //       doc.add(new LongField("useful", useful, Field.Store.YES));

        writer.addDocument(doc);

        System.out.println(line++);
    }

    writer.close();
    Date end = new Date();
    System.out.println(end.getTime() - start.getTime() + " total milliseconds");
    // BufferedReader in = new BufferedReader(new FileReader(file));
    //while (in.ready()) {
    //  String s = in.readLine();
    //  //System.out.println(s);
    // JSONObject jsonObject = (JSONObject) ((Object)s);
    //      String rtext = (String) jsonObject.get("text");
    //      System.out.println(rtext);
    //      //long age = (Long) jsonObject.get("age");
    //      //System.out.println(age);
    //}
    //in.close();
}

From source file:ci6226.eval_index_writer.java

public eval_index_writer(Analyzer _analyzer, String _iReviewLocation, String _dir) throws IOException {
    String file = _iReviewLocation;
    JSONParser parser = new JSONParser();
    BufferedReader in = new BufferedReader(new FileReader(file));
    Date start = new Date();
    String indexPath = "./" + _dir;
    System.out.println("Indexing to directory '" + indexPath + "'...");
    Analyzer analyzer = _analyzer;//from  w w  w  .j  a v a 2  s.co  m
    IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_47, analyzer);
    Directory dir = FSDirectory.open(new File(indexPath));
    iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
    IndexWriter writer = new IndexWriter(dir, iwc);
    //  int line=0;
    while (in.ready()) {
        String s = in.readLine();
        Object obj = JSONValue.parse(s);
        JSONObject person = (JSONObject) obj;
        String text = (String) person.get("text");
        String user_id = (String) person.get("user_id");
        String business_id = (String) person.get("business_id");
        String review_id = (String) person.get("review_id");
        JSONObject votes = (JSONObject) person.get("votes");
        long funny = (Long) votes.get("funny");
        long cool = (Long) votes.get("cool");
        long useful = (Long) votes.get("useful");
        Document doc = new Document();
        Field review_idf = new StringField("review_id", review_id, Field.Store.YES);
        doc.add(review_idf);
        //    Field business_idf = new StringField("business_id", business_id, Field.Store.YES);
        //     doc.add(business_idf);

        //http://qindongliang1922.iteye.com/blog/2030639
        FieldType ft = new FieldType();
        ft.setIndexed(true);//
        ft.setStored(true);//
        ft.setStoreTermVectors(true);
        ft.setTokenized(true);
        ft.setStoreTermVectorPositions(true);//
        ft.setStoreTermVectorOffsets(true);//

        Field textf = new Field("text", text, ft);

        doc.add(textf);
        //    Field user_idf = new StringField("user_id", user_id, Field.Store.YES);
        //     doc.add(user_idf);
        //      doc.add(new LongField("cool", cool, Field.Store.YES));
        //      doc.add(new LongField("funny", funny, Field.Store.YES));
        //       doc.add(new LongField("useful", useful, Field.Store.YES));

        writer.addDocument(doc);

        //  System.out.println(line++);
    }

    writer.close();
    Date end = new Date();
    System.out.println(end.getTime() - start.getTime() + " total milliseconds");
}

From source file:cn.codepub.redis.directory.Main.java

License:Apache License

public static void testRedisDirectoryWithShardedJedisPool() throws IOException {
    long start = System.currentTimeMillis();
    IndexWriterConfig indexWriterConfig = new IndexWriterConfig(new WhitespaceAnalyzer())
            .setOpenMode(IndexWriterConfig.OpenMode.CREATE);
    //indexWriterConfig.setInfoStream(System.out);
    //indexWriterConfig.setRAMBufferSizeMB(2048);
    //LogByteSizeMergePolicy logByteSizeMergePolicy = new LogByteSizeMergePolicy();
    //logByteSizeMergePolicy.setMinMergeMB(1);
    //logByteSizeMergePolicy.setMaxMergeMB(64);
    //logByteSizeMergePolicy.setMaxCFSSegmentSizeMB(64);
    //indexWriterConfig.setRAMBufferSizeMB(1024).setMergePolicy(logByteSizeMergePolicy).setUseCompoundFile(false);
    //GenericObjectPoolConfig genericObjectPoolConfig = new GenericObjectPoolConfig();
    //?//from w w w  .  j a v  a2 s .  co  m
    //genericObjectPoolConfig.setMaxWaitMillis(3000);
    //10s
    List<JedisShardInfo> shards = new ArrayList<>();
    JedisShardInfo si = new JedisShardInfo("localhost", 6379, Constants.TIME_OUT);
    //JedisShardInfo si2 = new JedisShardInfo("localhost", 6380);
    shards.add(si);
    //shards.add(si2);
    JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
    ShardedJedisPool shardedJedisPool = new ShardedJedisPool(jedisPoolConfig, shards);
    RedisDirectory redisDirectory = new RedisDirectory(new ShardedJedisPoolStream(shardedJedisPool));
    IndexWriter indexWriter = new IndexWriter(redisDirectory, indexWriterConfig);
    for (int i = 0; i < 10000000; i++) {
        indexWriter.addDocument(addDocument(i));
    }
    indexWriter.commit();
    indexWriter.close();
    redisDirectory.close();
    long end = System.currentTimeMillis();
    log.error("RedisDirectoryWithShardedJedisPool consumes {}s!", (end - start) / 1000);
    shardedJedisPool = new ShardedJedisPool(jedisPoolConfig, shards);
    start = System.currentTimeMillis();
    IndexSearcher indexSearcher = new IndexSearcher(
            DirectoryReader.open(new RedisDirectory(new ShardedJedisPoolStream(shardedJedisPool))));
    int total = 0;
    for (int i = 0; i < 10000000; i++) {
        TermQuery key1 = new TermQuery(new Term("key1", "key" + i));
        TopDocs search = indexSearcher.search(key1, 10);
        total += search.totalHits;
    }
    System.out.println(total);
    end = System.currentTimeMillis();
    log.error("RedisDirectoryWithShardedJedisPool search consumes {}ms!", (end - start));
}

From source file:cn.fql.blogspider.IndexMain.java

License:Open Source License

public static void main(String[] args) {

    String indexPath = "d:/test/index";
    String docsPath = "d:/test/docs";
    boolean create = true;

    File docDir = new File(docsPath);

    Date start = new Date();
    try {/*  ww  w  .j av a 2  s .  co m*/
        System.out.println("Indexing to directory '" + indexPath + "'...");

        Directory dir = FSDirectory.open(new File(indexPath));
        //Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_40);
        Analyzer analyzer = new IKAnalyzer();
        IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_40, analyzer);

        if (create) {
            iwc.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
        } else {
            iwc.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
        }

        IndexWriter writer = new IndexWriter(dir, iwc);
        indexDocs(writer, docDir);

        writer.close();

        Date end = new Date();
        System.out.println((end.getTime() - start.getTime()) + " total milliseconds");
    } catch (IOException e) {
        System.out.println(" caught a " + e.getClass() + "\n with message: " + e.getMessage());
    }
}

From source file:cn.jcenterhome.web.action.CpAction.java

private List<String> getKeyWord(String text) throws IOException {
    List<String> keywords = new ArrayList<String>();
    if (!Common.empty(text)) {
        Map<String, Integer> words = new HashMap<String, Integer>();
        Analyzer analyzer = new IKAnalyzer(true);
        StringReader reader = new StringReader(text);
        TokenStream tokenStream = analyzer.tokenStream("*", reader);
        TermAttribute termAtt = (TermAttribute) tokenStream.getAttribute(TermAttribute.class);
        while (tokenStream.incrementToken()) {
            String word = termAtt.term();
            if (word.length() > 1 && Common.strlen(word) > 2) {
                Integer count = words.get(word);
                if (count == null) {
                    count = 0;/*from w ww .java2 s.  c o m*/
                }
                words.put(word, count + 1);
            }
        }
        if (words.size() > 0) {
            Directory dir = null;
            IndexSearcher searcher = null;
            try {
                String fieldName = "text";
                dir = new RAMDirectory();
                IndexWriter writer = new IndexWriter(dir, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);
                Document doc = new Document();
                doc.add(new Field(fieldName, text, Field.Store.YES, Field.Index.ANALYZED));
                writer.addDocument(doc);
                writer.close();
                searcher = new IndexSearcher(dir);
                searcher.setSimilarity(new IKSimilarity());
                Set<String> keys = words.keySet();
                Map<String, Float> temps = new HashMap<String, Float>();
                for (String key : keys) {
                    int count = words.get(key);
                    Query query = IKQueryParser.parse(fieldName, key);
                    TopDocs topDocs = searcher.search(query, 1);
                    if (topDocs.totalHits > 0) {
                        temps.put(key, topDocs.getMaxScore() * count);
                    }
                }
                Entry<String, Float>[] keywordEntry = getSortedHashtableByValue(temps);
                for (Entry<String, Float> entry : keywordEntry) {
                    if (keywords.size() < 5) {
                        keywords.add(entry.getKey());
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                try {
                    searcher.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                try {
                    dir.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    return keywords;
}

From source file:cn.larry.search.book.index.IndexFiles.java

License:Apache License

/** Index all text files under a directory. */
public static void main(String[] args) {
    String usage = "java org.apache.lucene.demo.IndexFiles"
            + " [-index INDEX_PATH] [-docs DOCS_PATH] [-update]\n\n"
            + "This indexes the documents in DOCS_PATH, creating a Lucene index"
            + "in INDEX_PATH that can be searched with SearchFiles";
    String indexPath = "index";
    String docsPath = null;//from w ww .  j a  v  a  2s.com
    boolean create = true;
    for (int i = 0; i < args.length; i++) {
        if ("-index".equals(args[i])) {
            indexPath = args[i + 1];
            i++;
        } else if ("-docs".equals(args[i])) {
            docsPath = args[i + 1];
            i++;
        } else if ("-update".equals(args[i])) {
            create = false;
        }
    }

    if (docsPath == null) {
        System.err.println("Usage: " + usage);
        System.exit(1);
    }

    final Path docDir = Paths.get(docsPath);
    if (!Files.isReadable(docDir)) {
        System.out.println("Document directory '" + docDir.toAbsolutePath()
                + "' does not exist or is not readable, please check the path");
        System.exit(1);
    }

    Date start = new Date();
    try {
        System.out.println("Indexing to directory '" + indexPath + "'...");

        Directory dir = FSDirectory.open(Paths.get(indexPath));
        Analyzer analyzer = new StandardAnalyzer();
        IndexWriterConfig iwc = new IndexWriterConfig(analyzer);

        if (create) {
            // Create a new index in the directory, removing any
            // previously indexed documents:
            iwc.setOpenMode(OpenMode.CREATE);
        } else {
            // Add new documents to an existing index:
            iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
        }

        // Optional: for better indexing performance, if you
        // are indexing many documents, increase the RAM
        // buffer.  But if you do this, increase the max heap
        // size to the JVM (eg add -Xmxm or -Xmx1g):
        //
        // iwc.setRAMBufferSizeMB(.0);

        IndexWriter writer = new IndexWriter(dir, iwc);
        indexDocs(writer, docDir);

        // NOTE: if you want to maximize search performance,
        // you can optionally call forceMerge here.  This can be
        // a terribly costly operation, so generally it's only
        // worth it when your index is relatively static (ie
        // you're done adding documents to it):
        //
        // writer.forceMerge(1);

        writer.close();

        Date end = new Date();
        System.out.println(end.getTime() - start.getTime() + " total milliseconds");

    } catch (IOException e) {
        System.out.println(" caught a " + e.getClass() + "\n with message: " + e.getMessage());
    }
}

From source file:collene.TestIndexing.java

License:Apache License

@Test
public void test() throws IOException, ParseException {
    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_9);

    // write it out.
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_4_9, analyzer);
    config.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
    IndexWriter writer = new IndexWriter(directory, config);

    for (int i = 0; i < 100; i++) {
        Collection<Document> documents = new ArrayList<Document>();
        Document doc = new Document();
        doc.add(new Field("key", "aaa_" + i, TextField.TYPE_STORED));
        doc.add(new Field("not", "notaaa", TextField.TYPE_NOT_STORED));
        doc.add(new Field("meta", "aaa_meta_aaa_" + i, TextField.TYPE_STORED));
        documents.add(doc);//w w w .  j a v a2 s .c  o  m

        writer.addDocuments(documents);

        writer.commit();
        writer.forceMerge(1);
        writer.forceMergeDeletes(true);
    }

    // now read it back.
    IndexSearcher searcher = new IndexSearcher(DirectoryReader.open(writer, false));
    QueryParser parser = new QueryParser(Version.LUCENE_4_9, "key", analyzer);

    Query query = parser.parse("aaa_4");
    TopDocs docs = searcher.search(query, 1);
    int idToDelete = docs.scoreDocs[0].doc;
    Assert.assertTrue(docs.totalHits > 0);

    query = parser.parse("fersoius");
    docs = searcher.search(query, 1);
    Assert.assertFalse(docs.totalHits > 0);

    // delete that document.
    DirectoryReader reader = DirectoryReader.open(writer, true);
    writer.tryDeleteDocument(reader, idToDelete);

    reader.close();
    writer.close();

    // list files
    Set<String> files = new HashSet<String>();
    System.out.println("Listing files for " + directory.toString());
    for (String file : directory.listAll()) {
        files.add(file);
        System.out.println(" " + file);
    }

    if (strictFileChecking) {
        System.out.println("String file checking...");
        Sets.SetView<String> difference = Sets.difference(expectedFiles, files);
        Assert.assertEquals(Joiner.on(",").join(difference), 0, difference.size());
    }

    reader = DirectoryReader.open(directory);
    searcher = new IndexSearcher(reader);
    query = parser.parse("aaa_4");
    docs = searcher.search(query, 1);
    reader.close();
    Assert.assertFalse(docs.totalHits > 0);

    directory.close();
}

From source file:collene.TestLuceneAssumptions.java

License:Apache License

@Test
public void testCanSeeUpdatesAfterAdd() throws Exception {
    // this verifies that any reader can see updates after documents are added.
    File fdir = TestUtil.getRandomTempDir();
    pleaseDelete.add(fdir);//w ww  .  ja  v  a2s .co m

    Directory dir = FSDirectory.open(fdir);
    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_9);
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_4_9, analyzer);
    config.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
    IndexWriter writer = new IndexWriter(dir, config);

    Document doc0 = new Document();
    Document doc1 = new Document();
    doc0.add(new Field("f0", "aaa", TextField.TYPE_STORED));
    doc1.add(new Field("f0", "bbb", TextField.TYPE_STORED));
    List<Document> docs = Lists.newArrayList(doc0, doc1);
    writer.addDocuments(docs, analyzer);

    IndexSearcher searcher = new IndexSearcher(DirectoryReader.open(writer, false));
    QueryParser parser = new QueryParser(Version.LUCENE_4_9, "f0", new StandardAnalyzer(Version.LUCENE_4_9));

    Query query = parser.parse("bbb");
    TopDocs topDocs = searcher.search(query, 10);

    Assert.assertEquals(1, topDocs.totalHits);
    Assert.assertEquals(1, topDocs.scoreDocs.length);

    writer.close();
    dir.close();
}