Example usage for org.apache.lucene.store RAMDirectory RAMDirectory

Introduction

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

Prototype

public RAMDirectory()

Source Link

Document

Constructs an empty Directory .

Usage

From source file:com.mathworks.xzheng.analysis.synonym.SynonymAnalyzerTest.java

License:Apache License

public void setUp() throws Exception {
    RAMDirectory directory = new RAMDirectory();

    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, synonymAnalyzer);
    IndexWriter writer = new IndexWriter(directory, config); //#1
    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", Field.Store.YES,
            Field.Index.ANALYZED)); //#2
    writer.addDocument(doc);/*from w ww  . jav  a 2  s. co m*/

    writer.close();

    searcher = new IndexSearcher(DirectoryReader.open(directory));
}

From source file:com.mathworks.xzheng.analysis.UsingAnalyzersExample.java

License:Apache License

/**
 * This method doesn't do anything, except compile correctly.
 * This is used to show snippets of how Analyzers are used.
 *//*from  w ww  . j a  va 2s .co m*/
public void someMethod() throws IOException, ParseException {
    RAMDirectory directory = new RAMDirectory();

    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_46);

    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, analyzer);
    IndexWriter writer = new IndexWriter(directory, config);

    Document doc = new Document();
    doc.add(new Field("title", "This is the title", Field.Store.YES, Field.Index.ANALYZED));
    doc.add(new Field("contents", "...document contents...", Field.Store.NO, Field.Index.ANALYZED));
    writer.addDocument(doc);

    writer.addDocument(doc, analyzer);

    String expression = "some query";

    Query query = new QueryParser(Version.LUCENE_46, "contents", analyzer).parse(expression);

    QueryParser parser = new QueryParser(Version.LUCENE_46, "contents", analyzer);
    query = parser.parse(expression);
}

From source file:com.mathworks.xzheng.extsearch.sorting.DistanceSortingTest.java

License:Apache License

protected void setUp() throws Exception {
    directory = new RAMDirectory();
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46,
            new WhitespaceAnalyzer(Version.LUCENE_46));

    IndexWriter writer = new IndexWriter(directory, config);
    addPoint(writer, "El Charro", "restaurant", 1, 2);
    addPoint(writer, "Cafe Poca Cosa", "restaurant", 5, 9);
    addPoint(writer, "Los Betos", "restaurant", 9, 6);
    addPoint(writer, "Nico's Taco Shop", "restaurant", 3, 8);

    writer.close();/* www  .  j  a v  a 2  s .c o m*/

    searcher = new IndexSearcher(DirectoryReader.open(directory));

    query = new TermQuery(new Term("type", "restaurant"));
}

From source file:com.mathworks.xzheng.indexing.Fragments.java

License:Apache License

public void ramDirExample() throws Exception {
    Analyzer analyzer = new WhitespaceAnalyzer(Version.LUCENE_46);
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, analyzer);
    // START/* ww w .  j a v a  2 s  . co m*/
    Directory ramDir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(ramDir, config);
    // END
}

From source file:com.mathworks.xzheng.indexing.Fragments.java

License:Apache License

public void dirCopy() throws Exception {
    Directory otherDir = null;//from  w w w . ja va2  s  . c  om

    // START
    Directory ramDir = new RAMDirectory();
    // END
}

From source file:com.mathworks.xzheng.indexing.Fragments.java

License:Apache License

public void docBoostMethod() throws IOException {

    Directory dir = new RAMDirectory();
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46,
            new StandardAnalyzer(Version.LUCENE_46));
    IndexWriter writer = new IndexWriter(dir, config);

    // START// www  . j  a v a 2s.  c o  m
    Document doc = new Document();
    String senderEmail = getSenderEmail();
    String senderName = getSenderName();
    String subject = getSubject();
    String body = getBody();
    doc.add(new Field("senderEmail", senderEmail, Field.Store.YES, Field.Index.NOT_ANALYZED));
    doc.add(new Field("senderName", senderName, Field.Store.YES, Field.Index.ANALYZED));
    doc.add(new Field("subject", subject, Field.Store.YES, Field.Index.ANALYZED));
    doc.add(new Field("body", body, Field.Store.NO, Field.Index.ANALYZED));
    String lowerDomain = getSenderDomain().toLowerCase();
    if (isImportant(lowerDomain)) {
        doc.setBoost(1.5F); //1
    } else if (isUnimportant(lowerDomain)) {
        doc.setBoost(0.1F); //2 
    }
    writer.addDocument(doc);
    // END
    writer.close();

    /*
      #1 Good domain boost factor: 1.5
      #2 Bad domain boost factor: 0.1
    */
}

From source file:com.mathworks.xzheng.indexing.VerboseIndexing.java

License:Apache License

private void index() throws IOException {

    Directory dir = new RAMDirectory();
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46,
            new WhitespaceAnalyzer(Version.LUCENE_46));
    IndexWriter writer = new IndexWriter(dir, config);

    config.setInfoStream(System.out);

    for (int i = 0; i < 100; i++) {
        Document doc = new Document();
        doc.add(new Field("keyword", "goober", Field.Store.YES, Field.Index.NOT_ANALYZED));
        writer.addDocument(doc);/*ww  w  .j a v a 2  s  .c om*/
    }
    //writer.optimize();
    writer.forceMerge(Integer.MAX_VALUE);
    writer.close();
}

From source file:com.mathworks.xzheng.searching.NearRealTimeTest.java

License:Apache License

public void testNearRealTime() throws Exception {
    Directory dir = new RAMDirectory();

    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46,
            new StandardAnalyzer(Version.LUCENE_46));
    IndexWriter writer = new IndexWriter(dir, config);
    for (int i = 0; i < 10; i++) {
        Document doc = new Document();
        doc.add(new Field("id", "" + i, Field.Store.NO, Field.Index.NOT_ANALYZED_NO_NORMS));
        doc.add(new Field("text", "aaa", Field.Store.NO, Field.Index.ANALYZED));
        writer.addDocument(doc);//w  w w. j a v  a  2 s .c om
    }
    IndexReader reader = DirectoryReader.open(writer.getDirectory()); // #1
    IndexSearcher searcher = new IndexSearcher(reader); // #A

    Query query = new TermQuery(new Term("text", "aaa"));
    TopDocs docs = searcher.search(query, 1);
    assertEquals(10, docs.totalHits); // #B

    writer.deleteDocuments(new Term("id", "7")); // #2

    Document doc = new Document(); // #3
    doc.add(new Field("id", // #3
            "11", // #3
            Field.Store.NO, // #3
            Field.Index.NOT_ANALYZED_NO_NORMS)); // #3
    doc.add(new Field("text", // #3
            "bbb", // #3
            Field.Store.NO, // #3
            Field.Index.ANALYZED)); // #3
    writer.addDocument(doc); // #3

    //IndexReader newReader = reader.reopen();                 // #4
    IndexReader newReader = DirectoryReader.open(writer.getDirectory()); // #4
    assertFalse(reader == newReader); // #5
    reader.close(); // #6
    searcher = new IndexSearcher(newReader);

    TopDocs hits = searcher.search(query, 10); // #7
    assertEquals(9, hits.totalHits); // #7

    query = new TermQuery(new Term("text", "bbb")); // #8
    hits = searcher.search(query, 1); // #8
    assertEquals(1, hits.totalHits); // #8

    newReader.close();
    writer.close();
}

From source file:com.mathworks.xzheng.searching.PhraseQueryTest.java

License:Apache License

protected void setUp() throws IOException {
    dir = new RAMDirectory();

    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46,
            new WhitespaceAnalyzer(Version.LUCENE_46));

    IndexWriter writer = new IndexWriter(dir, config);
    Document doc = new Document();
    doc.add(new Field("field", // 1
            "the quick brown fox jumped over the lazy dog", // 1
            Field.Store.YES, // 1
            Field.Index.ANALYZED)); // 1
    writer.addDocument(doc);//from ww  w . j a v a  2 s.co  m
    writer.close();

    searcher = new IndexSearcher(DirectoryReader.open(dir));
}

From source file:com.mathworks.xzheng.tools.ChainedFilterTest.java

License:Apache License

public void setUp() throws Exception {
    directory = new RAMDirectory();

    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46,
            new WhitespaceAnalyzer(Version.LUCENE_46));

    IndexWriter writer = new IndexWriter(directory, config);

    Calendar cal = Calendar.getInstance();
    cal.set(2009, 1, 1, 0, 0); // A

    for (int i = 0; i < MAX; i++) {
        Document doc = new Document();
        doc.add(new Field("key", "" + (i + 1), Field.Store.YES, Field.Index.NOT_ANALYZED));
        doc.add(new Field("owner", (i < MAX / 2) ? "bob" : "sue", Field.Store.YES, Field.Index.NOT_ANALYZED));
        doc.add(new Field("date", DateTools.timeToString(cal.getTimeInMillis(), DateTools.Resolution.DAY),
                Field.Store.YES, Field.Index.NOT_ANALYZED));
        writer.addDocument(doc);//from w ww.j  a  va2s. c  o m

        cal.add(Calendar.DATE, 1);
    }

    writer.close();

    searcher = new IndexSearcher(DirectoryReader.open(directory));

    BooleanQuery bq = new BooleanQuery(); // B
    bq.add(new TermQuery(new Term("owner", "bob")), // B
            BooleanClause.Occur.SHOULD); // B
    bq.add(new TermQuery(new Term("owner", "sue")), // B
            BooleanClause.Occur.SHOULD); // B
    query = bq;

    cal.set(2099, 1, 1, 0, 0);
    dateFilter = TermRangeFilter.Less("date", // C
            new BytesRef(DateTools.timeToString( // C
                    cal.getTimeInMillis(), // C
                    DateTools.Resolution.DAY)));// C

    bobFilter = new CachingWrapperFilter( // D
            new QueryWrapperFilter( // D
                    new TermQuery(new Term("owner", "bob")))); // D

    sueFilter = new CachingWrapperFilter( // E
            new QueryWrapperFilter( // E
                    new TermQuery(new Term("owner", "sue")))); // E
}