void WriteTail()
{
var metadata = _stripeWriter.GetMetadata();
var footer = _stripeWriter.GetFooter();
footer.HeaderLength = (ulong)_magic.Length;
long metadataLength, footerLength;
_bufferFactory.SerializeAndCompressTo(_outputStream, metadata, out metadataLength);
_bufferFactory.SerializeAndCompressTo(_outputStream, footer, out footerLength);
var postScript = GetPostscript((ulong)footerLength, (ulong)metadataLength);
var postScriptStream = new MemoryStream();
StaticProtoBuf.Serializer.Serialize(postScriptStream, postScript);
postScriptStream.Seek(0, SeekOrigin.Begin);
postScriptStream.CopyTo(_outputStream);
if (postScriptStream.Length > 255)
{
throw new InvalidDataException("Invalid Postscript length");
}
_outputStream.WriteByte((byte)postScriptStream.Length);
}
public static void Write <T>(System.IO.Stream outputStream, IEnumerable <T> values, out Footer footer, SerializationConfiguration serializationConfiguration = null) where T : class
{
var bufferFactory = new OrcCompressedBufferFactory(256 * 1024, CompressionKind.Zlib, CompressionStrategy.Size);
var stripeWriter = new StripeWriter(typeof(T), outputStream, false, 0.8, 18, 6, bufferFactory, 10000, 512 * 1024 * 1024, serializationConfiguration);
stripeWriter.AddRows(values);
stripeWriter.RowAddingCompleted();
footer = stripeWriter.GetFooter();
outputStream.Seek(0, SeekOrigin.Begin);
}