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

Introduction

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

Prototype

public final void flush() throws IOException

Source Link

Document

Moves all in-memory segments to the Directory , but does not commit (fsync) them (call #commit for that).

Usage

From source file:org.sonatype.nexus.index.updater.DefaultIndexUpdater.java

License:Open Source License

private static void filterDirectory(final Directory directory, final DocumentFilter filter) throws IOException {
    IndexReader r = null;//from w  w w.  j  a v  a2  s  .  c o m
    try {
        r = IndexReader.open(directory);

        int numDocs = r.numDocs();

        for (int i = 0; i < numDocs; i++) {
            if (r.isDeleted(i)) {
                continue;
            }

            Document d = r.document(i);

            if (!filter.accept(d)) {
                r.deleteDocument(i);
            }
        }
    } finally {
        IndexUtils.close(r);
    }

    IndexWriter w = null;
    try {
        // analyzer is unimportant, since we are not adding/searching to/on index, only reading/deleting
        w = new IndexWriter(directory, new NexusAnalyzer());

        w.optimize();

        w.flush();
    } finally {
        IndexUtils.close(w);
    }
}

From source file:org.sonatype.nexus.index.updater.IndexDataReader.java

License:Open Source License

public IndexDataReadResult readIndex(IndexWriter w, IndexingContext context) throws IOException {
    dis.readByte(); // data format version

    long timestamp = dis.readLong();

    Date date = null;/*  w  w w .  j a v  a  2s  . c  o  m*/

    if (timestamp != -1) {
        date = new Date(timestamp);

        IndexUtils.updateTimestamp(w.getDirectory(), date);
    }

    int n = 0;

    Document doc;
    while ((doc = readDocument()) != null) {
        w.addDocument(IndexUtils.updateDocument(doc, context, false));

        n++;
    }

    w.flush();
    w.optimize();

    IndexDataReadResult result = new IndexDataReadResult();
    result.setDocumentCount(n);
    result.setTimestamp(date);
    return result;
}