private Codec ResolveCodec()
{
return(Codec.CreateCodecFromString(GetMetaString(DataFileConstants.MetaDataCodec)));
}
/// <summary>
/// Open a new writer instance to write
/// to an output stream with a specified codec
/// </summary>
/// <param name="writer">Datum writer to use.</param>
/// <param name="outStream">Stream to write to.</param>
/// <param name="codec">Codec to use when writing.</param>
/// <returns>A new file writer.</returns>
public static IFileWriter <T> OpenWriter(DatumWriter <T> writer, Stream outStream, Codec codec)
{
return(new DataFileWriter <T>(writer).Create(writer.Schema, outStream, codec));
}
/// <summary>
/// Open a new writer instance to write
/// to an output stream, using a Null codec
/// </summary>
/// <param name="writer">Datum writer to use.</param>
/// <param name="outStream">Stream to write to.</param>
/// <returns>A new file writer.</returns>
public static IFileWriter <T> OpenWriter(DatumWriter <T> writer, Stream outStream)
{
return(OpenWriter(writer, outStream, Codec.CreateCodec(Codec.Type.Null)));
}
/// <summary>
/// Open a new writer instance to write
/// to a file path with a specified codec
/// </summary>
/// <param name="writer">Datum writer to use.</param>
/// <param name="path">Path to the file.</param>
/// <param name="codec">Codec to use when writing.</param>
/// <returns>A new file writer.</returns>
public static IFileWriter <T> OpenWriter(DatumWriter <T> writer, string path, Codec codec)
{
return(OpenWriter(writer, new FileStream(path, FileMode.Create), codec));
}
/// <summary>
/// Open a new writer instance to write
/// to a file path, using a Null codec
/// </summary>
/// <param name="writer">Datum writer to use.</param>
/// <param name="path">Path to the file.</param>
/// <returns>A new file writer.</returns>
public static IFileWriter <T> OpenWriter(DatumWriter <T> writer, string path)
{
return(OpenWriter(writer, new FileStream(path, FileMode.Create), Codec.CreateCodec(Codec.Type.Null)));
}
