Example usage for org.apache.lucene.index MultiBits getLiveDocs

Introduction

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

Prototype

public static Bits getLiveDocs(IndexReader reader) 

Source Link

Document

Returns a single Bits instance for this reader, merging live Documents on the fly.

Usage

From source file:br.bireme.ngrams.NGrams.java

public static void export(NGIndex index, final NGSchema schema, final String outFile,
        final String outFileEncoding) throws IOException {
    if (index == null) {
        throw new NullPointerException("index");
    }/*from  w w  w  . j  av  a 2 s  .  c o  m*/
    if (schema == null) {
        throw new NullPointerException("schema");
    }
    if (outFile == null) {
        throw new NullPointerException("outFile");
    }
    if (outFileEncoding == null) {
        throw new NullPointerException("outFileEncoding");
    }
    final Parameters parameters = schema.getParameters();
    final TreeMap<Integer, String> fields = new TreeMap<>();
    final IndexReader reader = index.getIndexSearcher().getIndexReader();
    final int maxdoc = reader.maxDoc();
    //final Bits liveDocs = MultiFields.getLiveDocs(reader);
    final Bits liveDocs = MultiBits.getLiveDocs(reader);
    final BufferedWriter writer = Files.newBufferedWriter(Paths.get(outFile), Charset.forName(outFileEncoding),
            StandardOpenOption.CREATE, StandardOpenOption.WRITE);

    boolean first = true;

    for (Map.Entry<Integer, br.bireme.ngrams.Field> entry : parameters.sfields.entrySet()) {
        fields.put(entry.getKey(), entry.getValue().name + NOT_NORMALIZED_FLD);
    }

    for (int docID = 0; docID < maxdoc; docID++) {
        if ((liveDocs != null) && (!liveDocs.get(docID)))
            continue;
        final Document doc = reader.document(docID);

        if (first) {
            first = false;
        } else {
            writer.newLine();
        }
        writer.append(doc2pipe(doc, fields));
    }
    writer.close();
    reader.close();
}

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From source file:org.apache.tika.eval.tools.SlowCompositeReaderWrapper.java

License:Apache License

@Override
public Bits getLiveDocs() {
    ensureOpen();
    return MultiBits.getLiveDocs(in); // TODO cache?
}

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