public async Task <Option> Write(VamasDataSet dataSet, Stream stream)
{
var validationRules = new List <LazyOption>
{
Optional.Lazy(() => dataSet != null, "VAMAS data set cannot be null"),
Optional.Lazy(() => stream != null, "Stream to write to cannot be null"),
Optional.Lazy(() => stream.CanWrite, "Stream to write to must be writable"),
};
return(await validationRules.Reduce()
.FlatMapAsync(async() =>
{
try
{
await using var sw = new StreamWriter(stream);
var blockIndex = 0;
await sw.WriteAsync(await FormatFileHeader());
foreach (var block in dataSet.Blocks)
{
await sw.WriteAsync(await FormatBlock(block, blockIndex++));
foreach (var count in block.Counts)
{
await sw.WriteLineAsync(count.ToString("G17", CultureInfo.InvariantCulture));
}
}
await sw.WriteAsync(await FormatFileFooter());
}
catch (Exception e)
{
return Optional.None(e);
}
return Optional.Some(Success.Create("VAMAS data set written to stream successfully"));
}, "Failed to write VAMAS file to stream"));
async Task <string> FormatFileHeader()
{
return(string.Format((await _templates)["FILE_HEADER"],
3 + dataSet.SampleIdentifiers.Count,
string.Join("", dataSet.SampleIdentifiers.Select(c => $"{Environment.NewLine}CasaRowLabel:{c}")),
dataSet.Blocks.Count));
}
async Task <string> FormatBlock(Block block, int blockIndex)
{
return(string.Format((await _templates)["BLOCK"],
block.Name,
block.SampleIdentifier,
block.CreationTimeLocal.Value.Year,
block.CreationTimeLocal.Value.Month,
block.CreationTimeLocal.Value.Day,
block.CreationTimeLocal.Value.Hour,
block.CreationTimeLocal.Value.Minute,
block.CreationTimeLocal.Value.Second,
block.CreationTimeLocal.UtcOffset,
Path.GetFileNameWithoutExtension(block.ScanFilepath),
block.RegionName,
Path.GetDirectoryName(block.ScanFilepath),
blockIndex,
block.Species,
block.StartingEnergyValue.ToString("0.#", CultureInfo.InvariantCulture),
block.EnergyStep.ToString("0.0##", CultureInfo.InvariantCulture),
block.Counts.Count,
block.Counts.Min().ToString("G17", CultureInfo.InvariantCulture),
block.Counts.Max().ToString("G17", CultureInfo.InvariantCulture)));
}
async Task <string> FormatFileFooter()
{
return((await _templates)["FILE_FOOTER"]);
}
}
public async Task <Option> Write(VamasDataSet dataSet, string destinationFilepath)
{
await using var fs = new FileStream(destinationFilepath, FileMode.Create, FileAccess.Write, FileShare.Read, 4096, FileOptions.Asynchronous);
return(await Write(dataSet, fs).FlatMapNoneAsync("Failed to save VAMAS file"));
}
