private string CreateTestArchive(Guid sessionId)
{
var tmpName = Path.GetTempFileName();
var timeData = new[] { 1L, 2L, 3L };
var timeColumn = new DataColumn(
new DataField <long>("time"),
timeData);
var numbersData = new[] { 42d, 1337d, 6.022e23 };
var numbersColumn = new DataColumn(
new DataField <double>("cool_numbers"),
numbersData);
var schema = new Schema(timeColumn.Field, numbersColumn.Field);
var json = new JObject {
["meta"] = new JObject(), ["user"] = new JObject()
};
using (var ms = new MemoryStream())
{
using (var parquetWriter = new ParquetWriter(schema, ms))
using (var groupWriter = parquetWriter.CreateRowGroup())
{
groupWriter.WriteColumn(timeColumn);
groupWriter.WriteColumn(numbersColumn);
}
ms.Position = 0;
using (var parquetReader = new ParquetReader(ms))
{
var tableInformation = new ArchiveTableInformation()
{
Columns = new List <DataField>(parquetReader.Schema.GetDataFields()),
Time = timeColumn.Field
};
var table = new ArchiveTable(json, parquetReader, tableInformation, "testData");
var archive = Archive.Create(tmpName);
var session = ArchiveSession.Create(archive, "testName");
var folder = ArchiveFolder.Create(archive, sessionId, "testFolder");
folder.AddChild(table);
session.AddChild(folder);
archive.AddSession(session);
archive.WriteFile().Wait();
archive.Close();
}
}
return(tmpName);
}
public void SaveSingleDataArchive()
{
Guid sessionId = Guid.NewGuid(); // Todo fake sessionId
var tmpName = Path.GetTempFileName();
var timeData = new[] { 1L, 2L, 3L };
var timeColumn = new DataColumn(
new DataField <long>("time"),
timeData);
var numbersData = new[] { 42d, 1337d, 6.022e23 };
var numbersColumn = new DataColumn(
new DataField <double>("cool_numbers"),
numbersData);
var schema = new Schema(timeColumn.Field, numbersColumn.Field);
var json = new JObject {
["meta"] = new JObject(), ["user"] = new JObject()
};
using (var ms = new MemoryStream())
{
using (var parquetWriter = new ParquetWriter(schema, ms))
using (var groupWriter = parquetWriter.CreateRowGroup())
{
groupWriter.WriteColumn(timeColumn);
groupWriter.WriteColumn(numbersColumn);
}
ms.Position = 0;
using (var parquetReader = new ParquetReader(ms)) {
var tableInformation = new ArchiveTableInformation()
{
Columns = new List <DataField>(parquetReader.Schema.GetDataFields()),
Time = timeColumn.Field
};
var table = new ArchiveTable(json, parquetReader, tableInformation, "testData");
var archive = Archive.Create(tmpName);
var session = ArchiveSession.Create(archive, "testName");
var folder = ArchiveFolder.Create(archive, sessionId, "testFolder");
folder.AddChild(table);
session.AddChild(folder);
archive.AddSession(session);
try
{
archive.WriteFile().Wait();
}
catch (Exception)
{
Assert.True(false);
}
archive.Close();
using (var fr = new FileReader(tmpName))
{
var openTask = Archive.Open(fr);
openTask.Wait();
var newArchive = openTask.Result;
AssertArchivesEqual(archive, newArchive);
Assert.Equal("testName", session.Name);
Assert.Single(newArchive.Sessions.First().Children);
var readFolder = newArchive.Sessions.First().Children.First();
Assert.Equal("testFolder", readFolder.Name);
Assert.Single(readFolder.Children);
var child = readFolder.Children.First();
Assert.Single(child.DataPoints);
Assert.IsAssignableFrom <ArchiveTable>(child);
var tableChild = (ArchiveTable)child;
var dataPoint = tableChild.DataPoints.First();
var context = new TimeSynchronizedContext();
context.AvailableTimeRangeChanged +=
(sender, from, to) => context.SetSelectedTimeRange(from, to);
var viewer = context.GetDataViewerFor(dataPoint);
viewer.Wait();
var dataViewer = viewer.Result;
Assert.IsAssignableFrom <ITimeSeriesViewer>(dataViewer);
var timeViewer = (ITimeSeriesViewer)dataViewer;
var data = timeViewer.GetCurrentData <double>();
Assert.Equal("cool_numbers", dataViewer.DataPoint.Name);
Assert.Equal(timeData, data.X.ToArray());
Assert.Equal(numbersData, data.Y.ToArray());
newArchive.Close();
}
}
}
File.Delete(tmpName);
}