private FamosFileChannel PrepareChannel(FamosFileField field, ChannelDescription channelDescription, int totalLength, DateTime startDateTme, double dx)
{
// component
var datasetName = $"{channelDescription.ChannelName}_{channelDescription.DatasetName.Replace(" ", "_")}";
var calibration = new FamosFileCalibration(false, 1, 0, false, channelDescription.Unit);
var component = new FamosFileAnalogComponent(datasetName, FamosFileDataType.Float64, totalLength, calibration)
{
XAxisScaling = new FamosFileXAxisScaling((decimal)dx)
{
Unit = "s"
},
TriggerTime = new FamosFileTriggerTime(startDateTme, FamosFileTimeMode.Unknown),
};
// attributes
var channel = component.Channels.First();
channel.PropertyInfo = new FamosFilePropertyInfo(new List <FamosFileProperty>()
{
new FamosFileProperty("name", channelDescription.ChannelName),
new FamosFileProperty("group", channelDescription.Group),
new FamosFileProperty("comment", "yyyy-MM-ddTHH-mm-ssZ: Comment1"),
});
field.Components.Add(component);
return(channel);
}
public void ThrowsWhenFieldIsAddedTwice()
{
// Arrange
var famosFile = new FamosFileHeader();
var field = new FamosFileField();
famosFile.Fields.Add(field);
famosFile.Fields.Add(field);
// Act
Assert.Throws <FormatException>(() => famosFile.Validate());
}
private void OpenFile(string dataFilePath, DateTime startDateTime, List <ChannelContextGroup> channelContextGroupSet)
{
if (File.Exists(dataFilePath))
{
throw new Exception($"The file {dataFilePath} already exists. Extending an already existing file with additional channels is not supported.");
}
var famosFile = new FamosFileHeader();
// file
var metadataGroup = new FamosFileGroup("Metadata");
metadataGroup.PropertyInfo = new FamosFilePropertyInfo(new List <FamosFileProperty>()
{
new FamosFileProperty("format_version", this.FormatVersion),
new FamosFileProperty("system_name", this.DataWriterContext.SystemName),
new FamosFileProperty("date_time", startDateTime),
});
foreach (var customMetadataEntry in this.DataWriterContext.CustomMetadataEntrySet.Where(customMetadataEntry => customMetadataEntry.CustomMetadataEntryLevel == CustomMetadataEntryLevel.File))
{
metadataGroup.PropertyInfo.Properties.Add(new FamosFileProperty(customMetadataEntry.Key, customMetadataEntry.Value));
}
famosFile.Groups.Add(metadataGroup);
// file -> project
var projectGroup = new FamosFileGroup($"{this.DataWriterContext.ProjectDescription.PrimaryGroupName} / {this.DataWriterContext.ProjectDescription.SecondaryGroupName} / {this.DataWriterContext.ProjectDescription.ProjectName}");
projectGroup.PropertyInfo = new FamosFilePropertyInfo(new List <FamosFileProperty>()
{
new FamosFileProperty("project_version", this.DataWriterContext.ProjectDescription.Version)
});
foreach (var customMetadataEntry in this.DataWriterContext.CustomMetadataEntrySet.Where(customMetadataEntry => customMetadataEntry.CustomMetadataEntryLevel == CustomMetadataEntryLevel.Project))
{
projectGroup.PropertyInfo.Properties.Add(new FamosFileProperty(customMetadataEntry.Key, customMetadataEntry.Value));
}
famosFile.Groups.Add(projectGroup);
// for each context group
foreach (var contextGroup in channelContextGroupSet)
{
var totalSeconds = (int)Math.Round(_settings.FilePeriod.TotalSeconds, MidpointRounding.AwayFromZero);
var totalLength = (int)(totalSeconds * contextGroup.SampleRate.SamplesPerSecond);
if (totalLength * (double)NexusUtilities.SizeOf(NexusDataType.FLOAT64) > 2 * Math.Pow(10, 9))
{
throw new Exception(ErrorMessage.FamosWriter_DataSizeExceedsLimit);
}
// file -> project -> channels
var field = new FamosFileField(FamosFileFieldType.MultipleYToSingleEquidistantTime);
foreach (ChannelContext channelContext in contextGroup.ChannelContextSet)
{
var dx = contextGroup.SampleRate.Period.TotalSeconds;
var channel = this.PrepareChannel(field, channelContext.ChannelDescription, (int)totalLength, startDateTime, dx);
projectGroup.Channels.Add(channel);
}
famosFile.Fields.Add(field);
_spdToFieldIndexMap[contextGroup.SampleRate.SamplesPerDay] = famosFile.Fields.Count - 1;
}
//
famosFile.Save(dataFilePath, _ => { });
_famosFile = FamosFile.OpenEditable(dataFilePath);
}
