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