Example usage for org.apache.lucene.index IndexReader getRefCount

Introduction

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

Prototype

public final int getRefCount() 

Source Link

Document

Expert: returns the current refCount for this reader

Usage

From source file:org.apache.blur.manager.writer.BlurIndexCloser.java

License:Apache License

private void tryToCloseReaders() {
    LOG.debug("Trying to close [{0}] readers", readers.size());
    Iterator<IndexReader> it = readers.iterator();
    while (it.hasNext()) {
        IndexReader reader = it.next();
        if (reader.getRefCount() == 1) {
            it.remove();//from  w w  w.ja  va 2 s.  c  o  m
            closeInternal(reader);
        } else {
            LOG.debug("Could not close indexreader [" + reader + "] because of ref count ["
                    + reader.getRefCount() + "].");
        }
    }
}

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From source file:org.apache.blur.manager.writer.BlurIndexCloser.java

License:Apache License

private void closeInternal(final IndexReader reader) {
    if (reader.getRefCount() == 0) {
        // Already closed.
        return;/* w  ww.  ja  v a2s  . co m*/
    }
    executorService.submit(new Runnable() {
        @Override
        public void run() {
            try {
                long s = System.currentTimeMillis();
                reader.close();
                long e = System.currentTimeMillis();
                LOG.debug("Size [{0}] time to close [{1}] Closing indexreader [{2}].", readers.size(), (e - s),
                        reader);
            } catch (Exception e) {
                readers.add(reader);
                LOG.error("Error while trying to close indexreader [" + reader + "].", e);
            }
        }
    });
}

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From source file:org.apache.jena.larq.TestLuceneNRT.java

License:Apache License

@Test
public void indexReaderOpenDirectory() throws Exception {
    IndexReader reader = IndexReader.open(directory);
    assertNotNull(reader);//from   w ww . j ava  2 s . c om
    assertSame(directory, reader.directory());
    assertEquals(1, reader.getRefCount());
    assertTrue(reader.isCurrent());
    assertEquals(0, reader.maxDoc());
    close(reader);
    assertEquals(0, reader.getRefCount());
}

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From source file:org.apache.jena.larq.TestLuceneNRT.java

License:Apache License

@Test
public void indexReaderOpenWriter() throws Exception {
    IndexReader reader = IndexReader.open(writer, true);
    assertNotNull(reader);/*from w  ww .j av a2  s .com*/
    assertSame(directory, reader.directory());
    assertEquals(1, reader.getRefCount());
    assertTrue(reader.isCurrent());
    assertEquals(0, reader.maxDoc());
    close(reader);
    assertEquals(0, reader.getRefCount());
}

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From source file:org.mulgara.resolver.lucene.LuceneIndexerCache.java

License:Apache License

/** Force the reader closed by cleaning up outstanding references. 
 * @throws IOException *//*from ww  w. j av  a 2  s. co  m*/
private static void forceClose(IndexReader reader) throws IOException {
    try {
        if (reader.getRefCount() > 1) {
            // This likely indicates a FullTextStringIndexTuples that was not properly closed.
            // Closing it now is likely to break any existing references to it.
            logger.warn("Forcing close of a reader that was returned to the cache with active references: "
                    + System.identityHashCode(reader));
            while (reader.getRefCount() > 1) {
                reader.decRef();
            }
        }
    } catch (IOException e) {
        logger.error("Can't decrement reference count to abandoned reader", e);
        throw e;
    } finally {
        reader.close();
    }
}

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From source file:org.weborganic.flint.SearcherManager.java

License:artistic-license-2.0

/**
 * Check if the reader provided is not current and not used anymore in which case it is closed.
 *
 * @param reader the reader to check/*w w w  . j ava2 s .c o  m*/
 *
 * @throws IOException if closing failed
 */
private void closeIfDirty(IndexReader reader) throws IOException {
    // check if we should close an old one
    if (this.currentSearcher.getIndexReader() != reader) {
        if (reader.getRefCount() == 0) {
            LOGGER.debug("Closing reader {}", reader.hashCode());
            try {
                reader.close();
            } catch (AlreadyClosedException e) {
                // good then, no need to worry
            }
        } else {
            LOGGER.debug("Cannot close reader {} as there are still references ({})", reader.hashCode(),
                    reader.getRefCount());
        }
    }
}

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