public async Task <bool> WriteData(JObject root, ISessionWriter writer)
{
var pathArr = Meta["attachments"].ToObject <string[]>() ?? throw new ArgumentException("Table is missing 'attachments'");
//TODO: Implement?
if (false && IsSaved)
{
var stream = await _archive.OpenFile(_zipEntry);
writer.StoreFileId(stream, pathArr[0]);
}
else
{
// This stream will be disposed by the sessionWriter
var ms = new MemoryStream();
// Make a copy of the Remembering reader that later can be discarded
// This to avoid to read in all tables in memory at the same time.
var fullReader = new RememberingParquetReader(_reader);
fullReader.LoadAll();
using (var tableWriter = new ParquetWriter(fullReader.Schema, ms))
{
using (var rowGroup = tableWriter.CreateRowGroup()) // Using construction assure correct storage of final rowGroup details in parquet file
{
foreach (var field in fullReader.Schema.GetDataFields())
{
var column = new DataColumn(field, fullReader.GetColumn(field));
rowGroup.WriteColumn(column);
}
}
}
ms.Position = 0;
writer.StoreFileId(ms, pathArr[0]);
}
// TODO AUTOACTIVE-58 - Generalize copy of previous metadata for save
// Copy previous
root["meta"] = Meta;
root["user"] = User;
// Overwrite potentially changed
// TODO root["meta"]["is_world_clock"] = ;
// TODO root["meta"]["synced_to"] = ;
return(true);
}
public Task <bool> WriteTable(string fileId, ISessionWriter writer)
{
// This stream will be disposed by the sessionWriter
var ms = new MemoryStream();
var dataColAndSchema = MakeDataColumnAndSchema();
using (var tableWriter = new Parquet.ParquetWriter(dataColAndSchema.Schema, ms))
{
//tableWriter.CompressionMethod = Parquet.CompressionMethod.Gzip;
using (var rowGroup = tableWriter.CreateRowGroup()) // Using construction assure correct storage of final rowGroup details in parquet file
{
foreach (var dataCol in dataColAndSchema.DataColumns)
{
rowGroup.WriteColumn(dataCol);
}
}
}
ms.Position = 0;
writer.StoreFileId(ms, fileId);
return(Task.FromResult(true));
}
public async Task <bool> WriteData(JObject root, ISessionWriter writer)
{
Stream stream;
string fileId;
if (_readerFactory == null)
{
var pathArr = Meta["attachments"].ToObject <string[]>() ??
throw new ArgumentException("Video is missing 'attachments'");
stream = await _archive.OpenFile(_zipEntry);
fileId = pathArr[0];
}
else
{
stream = await _readerFactory.GetReadStream();
// TODO: give a better name?
fileId = "/videos" + "/" + Name + "." + Guid.NewGuid();
Meta["attachments"] = new JArray(new object[] { fileId });
}
writer.StoreFileId(stream, fileId);
var offset = _video.VideoTime.Offset;
// TODO AUTOACTIVE-58 - Generalize copy of previous metadata for save
// Copy previous
root["meta"] = Meta;
root["user"] = User;
// Overwrite potentially changed
root["meta"]["start_time"] = offset;
root["meta"]["video_length"] = _video.VideoTime.VideoLength;
// TODO root["meta"]["is_world_clock"] = ;
// TODO root["meta"]["synced_to"] = ;
return(true);
}
public virtual async Task <bool> WriteData(JObject root, ISessionWriter writer)
{
if (Meta.ContainsKey("attachments"))
{
// There are attachments...
var pathArr = Meta["attachments"].ToObject <string[]>();
foreach (var path in pathArr)
{
// Fetch from sourceArchive
var fullSourcePath = "" + _sourceSessionId + path;
var zipEntry = _archive.FindFile(fullSourcePath) ?? throw new ZipException($"{Meta["type"]} file '{path}' not found in archive");
var stream = await _archive.OpenFile(zipEntry);
// Store in new session
writer.StoreFileId(stream, path);
}
}
// Copy previous
root["meta"] = Meta;
root["user"] = User;
return(true);
}
