/**
* Handler function for raw event emitter.
* Converts EEG events into lines of CSV and writes data to the rawLogFile
*/
internal void OnRawEEGData(EEGEvent evt)
{
var csv = new StringBuilder();
csv.Append(evt.timestamp.ToString("o"));
csv.Append(",");
csv.Append(evt.type.ToString());
if (evt.extra != null)
{
csv.Append(evt.extra.ToString());
}
csv.Append(",");
for (int i = 0; i < evt.data.Length; i++)
{
csv.Append(",");
csv.Append(evt.data[i].ToString());
}
if (file == null)
{
file = new AsyncStreamWriter(rawLogFile, true);
}
var writableCsv = csv.ToString();
file.WriteLine(writableCsv);
}
/**
* Records the raw data for the current session to the filename/filepath specified
* @throws ArgumentException if dataType is null
*/
public void LogRawData(EEGDataType dataType, String fileName)
{
if (fileName == null)
{
fileName = DateTime.Now.ToString("MM-dd-yyyy HH-mm-ss");
fileName = fileName + ".csv";
}
if (file == null)
{
file = new AsyncStreamWriter(fileName, true);
var csv = new StringBuilder();
csv.Append("Timestamp,Data Type,Extra,Data");
var writableCsv = csv.ToString();
file.WriteLine(writableCsv);
}
this.AddRawHandler(dataType, OnRawEEGData);
}
public FileLogger(string logName)
{
outputStream = new AsyncStreamWriter(logName, true);
outputStream.WriteLine("\n\n\n");
}