Example usage for org.apache.lucene.store Directory close

Introduction

In this page you can find the example usage for org.apache.lucene.store Directory close.

Prototype

@Override
public abstract void close() throws IOException;

Source Link

Document

Closes the directory.

Usage

From source file:DVBench.java

License:Apache License

static void doBench(int bpv) throws Exception {
    File file = new File("/data/indices/dvbench");
    file.mkdirs();/*from w  w w .jav a 2 s. c  om*/
    Directory dir = FSDirectory.open(file);
    IndexWriterConfig config = new IndexWriterConfig(null);
    config.setOpenMode(OpenMode.CREATE);
    config.setMergeScheduler(new SerialMergeScheduler());
    config.setMergePolicy(new LogDocMergePolicy());
    config.setMaxBufferedDocs(25000);
    IndexWriter writer = new IndexWriter(dir, config);

    MyRandom r = new MyRandom();
    int numdocs = 400000;
    Document doc = new Document();
    Field dv = new NumericDocValuesField("dv", 0);
    Field inv = new LongField("inv", 0, Field.Store.NO);
    Field boxed = new BinaryDocValuesField("boxed", new BytesRef(8));
    Field boxed2 = new BinaryDocValuesField("boxed2", new BytesRef(8));

    doc.add(dv);
    doc.add(inv);
    doc.add(boxed);
    doc.add(boxed2);
    for (int i = 0; i < numdocs; i++) {
        // defeat blockpackedwriter
        final long value;
        if (i % 8192 == 0) {
            value = bpv == 64 ? Long.MIN_VALUE : 0;
        } else if (i % 8192 == 1) {
            value = bpv == 64 ? Long.MAX_VALUE : (1L << bpv) - 1;
        } else {
            value = r.nextLong(bpv);
        }
        dv.setLongValue(value);
        inv.setLongValue(value);
        box(value, boxed.binaryValue());
        box(value, boxed2.binaryValue());
        boxed2.binaryValue().length = (bpv + 7) / 8; // fixed length
        writer.addDocument(doc);
    }

    writer.close();

    // run dv search tests
    String description = "dv (bpv=" + bpv + ")";
    DirectoryReader reader = DirectoryReader.open(dir);
    IndexSearcher searcher = new IndexSearcher(reader);
    searcher.setQueryCache(null); // don't bench the cache

    int hash = 0;
    // warmup
    hash += search(description, searcher, "dv", 300, true);
    hash += search(description, searcher, "dv", 300, false);

    // Uninverting
    Map<String, UninvertingReader.Type> mapping = Collections.singletonMap("inv", UninvertingReader.Type.LONG);
    DirectoryReader uninv = UninvertingReader.wrap(reader, mapping);
    IndexSearcher searcher2 = new IndexSearcher(uninv);
    searcher2.setQueryCache(null); // don't bench the cache

    description = "fc (bpv=" + bpv + ")";
    // warmup
    hash += search(description, searcher2, "inv", 300, true);
    hash += search(description, searcher2, "inv", 300, false);

    // Boxed inside binary
    DirectoryReader boxedReader = new BinaryAsVLongReader(reader);
    IndexSearcher searcher3 = new IndexSearcher(boxedReader);
    searcher3.setQueryCache(null); // don't bench the cache
    description = "boxed (bpv=" + bpv + ")";
    // warmup
    hash += search(description, searcher3, "boxed", 300, true);
    hash += search(description, searcher3, "boxed", 300, false);

    description = "boxed fixed-length (bpv=" + bpv + ")";
    // warmup
    hash += search(description, searcher3, "boxed2", 300, true);
    hash += search(description, searcher3, "boxed2", 300, false);

    if (hash == 3) {
        // wont happen
        System.out.println("hash=" + hash);
    }
    reader.close();
    dir.close();
}

---

From source file:action.searching.BasicSearchingTest.java

License:Apache License

public void testTerm() throws Exception {
    Directory dir = FSDirectory.open(new File(System.getProperty("index.dir"))); //A
    IndexSearcher searcher = new IndexSearcher(dir); //B

    Term t = new Term("subject", "ant");
    Query query = new TermQuery(t);
    TopDocs docs = searcher.search(query, 10);
    assertEquals("Ant in Action", //C
            1, docs.totalHits); //C

    t = new Term("subject", "junit");
    docs = searcher.search(new TermQuery(t), 10);
    assertEquals("Ant in Action, " + //D
            "JUnit in Action, Second Edition", //D
            2, docs.totalHits); //D

    searcher.close();//from w  w  w  .j a  v  a  2  s .c  o m
    dir.close();
}

---

From source file:action.searching.BasicSearchingTest.java

License:Apache License

public void testKeyword() throws Exception {
    Directory dir = FSDirectory.open(new File(System.getProperty("index.dir")));
    IndexSearcher searcher = new IndexSearcher(dir);

    Term t = new Term("isbn", "9781935182023");
    Query query = new TermQuery(t);
    TopDocs docs = searcher.search(query, 10);
    assertEquals("JUnit in Action, Second Edition", 1, docs.totalHits);

    searcher.close();/*  ww  w  .jav  a  2s . c om*/
    dir.close();
}

---

From source file:action.searching.BasicSearchingTest.java

License:Apache License

public void testQueryParser() throws Exception {
    Directory dir = FSDirectory.open(new File(System.getProperty("index.dir")));
    IndexSearcher searcher = new IndexSearcher(dir);

    QueryParser parser = new QueryParser(Version.LUCENE_30, //A
            "contents", //A
            new SimpleAnalyzer()); //A

    Query query = parser.parse("+JUNIT +ANT -MOCK"); //B
    TopDocs docs = searcher.search(query, 10);
    assertEquals(1, docs.totalHits);/*from w w w  .j  a v a  2 s  . c  o  m*/
    Document d = searcher.doc(docs.scoreDocs[0].doc);
    assertEquals("Ant in Action", d.get("title"));

    query = parser.parse("mock OR junit"); //B
    docs = searcher.search(query, 10);
    assertEquals("Ant in Action, " + "JUnit in Action, Second Edition", 2, docs.totalHits);

    searcher.close();
    dir.close();
}

---

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

License:Apache License

public static void main(String[] args) throws IOException {
    Directory dir = TestUtil.getBookIndexDirectory();

    IndexReader reader = DirectoryReader.open(dir);
    int numDocs = reader.maxDoc();

    BooksLikeThis blt = new BooksLikeThis(reader);
    for (int i = 0; i < numDocs; i++) { //
        LOGGER.info();// w  w w .j a  v a  2  s .c o  m
        Document doc = reader.document(i);
        LOGGER.info(doc.get("title"));

        Document[] docs = blt.docsLike(i, 10); //
        if (docs.length == 0) {
            LOGGER.info("  None like this");
        }
        for (Document likeThisDoc : docs) {
            LOGGER.info("  -> " + likeThisDoc.get("title"));
        }
    }
    reader.close();
    dir.close();
}

---

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

License:Apache License

public void testRecency() throws Throwable {
    Directory dir = TestUtil.getBookIndexDirectory();
    IndexReader r = DirectoryReader.open(dir);
    IndexSearcher s = new IndexSearcher(r);
    s.setDefaultFieldSortScoring(true, true);

    QueryParser parser = new QueryParser(Version.LUCENE_46, "contents",
            new StandardAnalyzer(Version.LUCENE_46));
    Query q = parser.parse("java in action"); // #A
    Query q2 = new RecencyBoostingQuery(q, // #B
            2.0, 2 * 365, "pubmonthAsDay");
    Sort sort = new Sort(new SortField[] { SortField.FIELD_SCORE, new SortField("title2", SortField.STRING) });
    TopDocs hits = s.search(q2, null, 5, sort);

    for (int i = 0; i < hits.scoreDocs.length; i++) {
        Document doc = r.document(hits.scoreDocs[i].doc);
        LOGGER.info((1 + i) + ": " + doc.get("title") + ": pubmonth=" + doc.get("pubmonth") + " score="
                + hits.scoreDocs[i].score);
    }//  w  w  w  .  j  av  a 2s  .  co m
    s.close();
    r.close();
    dir.close();
}

---

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

License:Apache License

public void testDefaultOperator() throws Exception {
    Query query = new MultiFieldQueryParser(Version.LUCENE_46, new String[] { "title", "subject" },
            new SimpleAnalyzer()).parse("development");

    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir, true);
    TopDocs hits = searcher.search(query, 10);

    assertTrue(TestUtil.hitsIncludeTitle(searcher, hits, "Ant in Action"));

    assertTrue(TestUtil.hitsIncludeTitle( //A
            searcher, //A
            hits, //A
            "Extreme Programming Explained")); //A
    searcher.close();//  w ww.ja  v a  2s. c o  m
    dir.close();
}

---

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

License:Apache License

public void testSpecifiedOperator() throws Exception {
    Query query = MultiFieldQueryParser.parse(Version.LUCENE_46, "lucene", new String[] { "title", "subject" },
            new BooleanClause.Occur[] { BooleanClause.Occur.MUST, BooleanClause.Occur.MUST },
            new SimpleAnalyzer());

    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir, true);
    TopDocs hits = searcher.search(query, 10);

    assertTrue(TestUtil.hitsIncludeTitle(searcher, hits, "Lucene in Action, Second Edition"));
    assertEquals("one and only one", 1, hits.scoreDocs.length);
    searcher.close();/*from w  w  w.  ja  v a 2s  . c  o  m*/
    dir.close();
}

---

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

---

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 ww. ja  v  a  2  s . 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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