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

Introduction

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

Prototype

public long addDocument(Iterable<? extends IndexableField> doc) throws IOException

Source Link

Document

Adds a document to this index.

Usage

From source file:edu.cuhk.hccl.cmd.AppSearchEngine.java

License:Apache License

/**
 * Create index of RAMDirectory from a data folder with text files
 * @param dataFolder//from  www.j a v  a 2s  .  c om
 * @param analyzer
 * @return
 * @throws IOException
 */
private static Directory createIndex(File dataFolder, StandardAnalyzer analyzer) throws IOException {

    Directory index = new RAMDirectory();
    IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);
    IndexWriter writer = new IndexWriter(index, config);

    Collection<File> files = FileUtils.listFiles(dataFolder, null, true);
    for (File file : files) {
        String path = file.getPath();
        String content = FileUtils.readFileToString(file);

        Document doc = new Document();

        doc.add(new StringField(PATH_FIELD, path, Field.Store.YES));
        doc.add(new Field(CONTENT_FIELD, content, TERM_STORED));

        writer.addDocument(doc);

        System.out.println("[INFO] Indexing file: " + path);
    }

    System.out.println("\n[INFO]" + files.size() + " files has been indexed.");

    writer.close();

    return index;
}

From source file:edu.cuhk.hccl.Indexer.java

License:Apache License

/**
 * Create index of RAMDirectory from a data folder with text files
 * //from  w ww . j a  va 2s  .  c  o  m
 * @param dataSet
 * @throws IOException
 */
public static void createIndex(String dataSet) throws IOException {
    IndexWriterConfig config = new IndexWriterConfig(Version.LATEST, analyzer);
    IndexWriter writer = new IndexWriter(index, config);

    Collection<File> files = FileUtils.listFiles(new File(dataSet), null, true);
    for (File file : files) {
        String path = file.getPath();
        String content = FileUtils.readFileToString(file);

        Document doc = new Document();

        doc.add(new StringField(PATH_FIELD, path, Field.Store.YES));
        doc.add(new Field(CONTENT_FIELD, content, TERM_STORED));

        writer.addDocument(doc);

        System.out.println("[INFO] Indexing file: " + path);
    }

    System.out.println("\n[INFO]" + files.size() + " files has been indexed.");

    writer.close();
}