Example usage for org.apache.lucene.store OutputStreamDataOutput writeBytes

Introduction

In this page you can find the example usage for org.apache.lucene.store OutputStreamDataOutput writeBytes.

Prototype

@Override
    public void writeBytes(byte[] b, int offset, int length) throws IOException 

Source Link

Usage

From source file:org.elasticsearch.index.translog.TranslogWriter.java

License:Apache License

public static TranslogWriter create(Type type, ShardId shardId, String translogUUID, long fileGeneration,
        Path file, Callback<ChannelReference> onClose, int bufferSize, ChannelFactory channelFactory)
        throws IOException {
    final BytesRef ref = new BytesRef(translogUUID);
    final int headerLength = CodecUtil.headerLength(TRANSLOG_CODEC) + ref.length
            + RamUsageEstimator.NUM_BYTES_INT;
    final FileChannel channel = channelFactory.open(file);
    try {/*from   ww  w . j  av  a  2s  .c  o m*/
        // This OutputStreamDataOutput is intentionally not closed because
        // closing it will close the FileChannel
        final OutputStreamDataOutput out = new OutputStreamDataOutput(
                java.nio.channels.Channels.newOutputStream(channel));
        CodecUtil.writeHeader(out, TRANSLOG_CODEC, VERSION);
        out.writeInt(ref.length);
        out.writeBytes(ref.bytes, ref.offset, ref.length);
        channel.force(false);
        writeCheckpoint(headerLength, 0, file.getParent(), fileGeneration, StandardOpenOption.WRITE);
        final TranslogWriter writer = type.create(shardId, fileGeneration,
                new ChannelReference(file, fileGeneration, channel, onClose), bufferSize);
        return writer;
    } catch (Throwable throwable) {
        IOUtils.closeWhileHandlingException(channel);
        try {
            Files.delete(file); // remove the file as well
        } catch (IOException ex) {
            throwable.addSuppressed(ex);
        }
        throw throwable;
    }
}

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