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

Introduction

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

Prototype

public IndexWriter(Directory d, IndexWriterConfig conf) throws IOException

Source Link

Document

Constructs a new IndexWriter per the settings given in conf.

Usage

From source file:com.mathworks.xzheng.analysis.keyword.KeywordAnalyzerTest.java

License:Apache License

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

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

    IndexWriter writer = new IndexWriter(directory, config);

    Document doc = new Document();
    doc.add(new Field("partnum", "Q36", Field.Store.NO, Field.Index.NOT_ANALYZED_NO_NORMS)); //A
    doc.add(new Field("description", "Illidium Space Modulator", Field.Store.YES, Field.Index.ANALYZED));
    writer.addDocument(doc);//from   w  ww .j a  v  a2  s. c o m

    writer.close();

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

From source file:com.mathworks.xzheng.analysis.positional.PositionalPorterStopAnalyzerTest.java

License:Apache License

public void setUp() throws Exception {

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

    Document doc = new Document();
    doc.add(new Field("contents", "The quick brown fox jumps over the lazy dog", Field.Store.YES,
            Field.Index.ANALYZED));
    writer.addDocument(doc);/*from  w w  w .  jav  a 2  s.com*/
    writer.close();
    searcher = new IndexSearcher(DirectoryReader.open(directory));
    parser = new QueryParser(Version.LUCENE_46, "contents", porterAnalyzer);
}

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   www.  j  av  a 2 s  .  c  o 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   ww w.j ava 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.common.CreateTestIndex.java

License:Apache License

public static void main(String[] args) throws IOException {
    String dataDir = args[0];/*from  ww  w  .j  a va 2  s .  c  o  m*/
    String indexDir = args[1];
    List<File> results = new ArrayList<File>();
    findFiles(results, new File(dataDir));
    System.out.println(results.size() + " books to index");
    Directory dir = FSDirectory.open(new File(indexDir));
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, new MyStandardAnalyzer());
    config.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
    IndexWriter w = new IndexWriter(dir, config);
    for (File file : results) {
        Document doc = getDocument(dataDir, file);
        w.addDocument(doc);
    }
    w.close();
    dir.close();
}

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();/*from www  . j  a va 2  s .  com*/

    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/*  w w  w .  ja va2s .c om*/
    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 addIndexes() throws Exception {
    Directory otherDir = null;//  w w w  . jav  a2  s.  com
    Directory ramDir = null;
    Analyzer analyzer = null;
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, analyzer);

    // START
    IndexWriter writer = new IndexWriter(otherDir, config);

    // UPDATE NOTE: addIndexesNoOptimize was renamed to addIndexes 
    writer.addIndexes(new Directory[] { ramDir });
    // 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/*from   www  .  j  ava  2  s . 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.Fragments.java

License:Apache License

public void setInfoStream() throws Exception {
    Directory dir = null;//from  w  w  w.j a  va2s.c  o m
    Analyzer analyzer = null;
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, analyzer);

    // START
    IndexWriter writer = new IndexWriter(dir, config);
    config.setInfoStream(System.out);
    // END
}