public void PrettyPrint(IEnumerable <string> files)
{
var builder = new FileMetadataBuilder(files, _reader);
var director = new FileMetadataInfoDirector(builder);
director.BuildFileMetadataInfo(_verbose);
var info = builder.GetMetadata();
Wrap(info);
Console.Write(info);
}
/// <summary>
/// Creates an instance of parquet writer on top of a stream
/// </summary>
/// <param name="output">Writeable, seekable stream</param>
/// <param name="formatOptions">Additional options</param>
/// <param name="writerOptions">The writer options.</param>
/// <exception cref="ArgumentNullException">Output is null.</exception>
/// <exception cref="ArgumentException">Output stream is not writeable</exception>
public ParquetWriter(Stream output, ParquetOptions formatOptions = null, WriterOptions writerOptions = null) : base(output)
{
_output = output ?? throw new ArgumentNullException(nameof(output));
if (!output.CanWrite)
{
throw new ArgumentException("stream is not writeable", nameof(output));
}
_formatOptions = formatOptions ?? new ParquetOptions();
_writerOptions = writerOptions ?? new WriterOptions();
_meta = new FileMetadataBuilder(_writerOptions);
_plainWriter = new PlainValuesWriter(_formatOptions);
_rleWriter = new RunLengthBitPackingHybridValuesWriter();
_dicWriter = new PlainDictionaryValuesWriter(_rleWriter);
}
/// <summary>
/// Creates an instance of parquet writer on top of a stream
/// </summary>
/// <param name="output">Writeable, seekable stream</param>
/// <param name="formatOptions">Additional options</param>
/// <param name="writerOptions">The writer options.</param>
/// <exception cref="ArgumentNullException">Output is null.</exception>
/// <exception cref="ArgumentException">Output stream is not writeable</exception>
public ParquetWriter(Stream output, ParquetOptions formatOptions = null, WriterOptions writerOptions = null)
: base(new PositionTrackingStream(output))
{
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
if (!output.CanWrite)
{
throw new ArgumentException("stream is not writeable", nameof(output));
}
_formatOptions = formatOptions ?? new ParquetOptions();
_writerOptions = writerOptions ?? new WriterOptions();
_meta = new FileMetadataBuilder();
}