public bool CanParse(string filePath, DateTime fileCreationTime)
{
string schemaFileName = Path.ChangeExtension(filePath, "cfg");
string extension = FilePath.GetExtension(filePath);
string[] fileList = FilePath.GetFileList(Path.ChangeExtension(filePath, "*"));
bool multipleDataFiles = !extension.Equals(".dat", StringComparison.OrdinalIgnoreCase);
if (!File.Exists(schemaFileName))
return false;
if (fileList.Any(file => !FilePath.TryGetReadLockExclusive(file)))
return false;
if (multipleDataFiles && DateTime.UtcNow - fileCreationTime < m_minWaitTime)
return false;
try
{
m_parser = new Parser();
m_parser.Schema = new Schema(schemaFileName);
m_parser.FileName = filePath;
m_parser.InferTimeFromSampleRates = true;
m_parser.OpenFiles();
}
catch (IOException)
{
return false;
}
return true;
}
/// <summary>
/// Populate known voltage and current data from PQDIF file.
/// </summary>
/// <param name="faultDataSet">Fault data set to be populated.</param>
/// <param name="settings">Source parameters.</param>
/// <param name="line">Associated XML event file definition.</param>
public static void PopulateDataSet(FaultLocationDataSet faultDataSet, Dictionary<string, string> settings, Line line)
{
string fileName;
if ((object)line == null)
throw new ArgumentNullException("line");
if (!settings.TryGetValue("fileName", out fileName) || !File.Exists(fileName))
throw new ArgumentException("Parameters must define a valid \"fileName\" setting.");
// Comtrade parsing will require a CFG file, make sure this exists...
string directory = Path.GetDirectoryName(fileName) ?? string.Empty;
string rootFileName = FilePath.GetFileNameWithoutExtension(fileName);
string configurationFileName = Path.Combine(directory, rootFileName + ".cfg");
if (!File.Exists(configurationFileName))
throw new FileNotFoundException(string.Format("Associated CFG file \"{0}\" for COMTRADE data file does not exist - cannot parse COMTRADE file.", configurationFileName));
// Parse configuration file
Schema schema = new Schema(configurationFileName);
// Find <Channels> element in XML line definition
XElement channels = line.ChannelsElement;
if ((object)channels == null)
throw new NullReferenceException("No \"<channels>\" element was found in event file definition - cannot load COMTRADE data file.");
// Extract COMTRADE channel ID's for desired voltage and current elements
IEnumerable<Tuple<int, int>> vaIndexes = GetValueIndex(schema, channels, "VA").ToList();
IEnumerable<Tuple<int, int>> vbIndexes = GetValueIndex(schema, channels, "VB").ToList();
IEnumerable<Tuple<int, int>> vcIndexes = GetValueIndex(schema, channels, "VC").ToList();
IEnumerable<Tuple<int, int>> iaIndexes = GetValueIndex(schema, channels, "IA").ToList();
IEnumerable<Tuple<int, int>> ibIndexes = GetValueIndex(schema, channels, "IB").ToList();
IEnumerable<Tuple<int, int>> icIndexes = GetValueIndex(schema, channels, "IC").ToList();
List<long> times = new List<long>();
List<double> vaValues = new List<double>();
List<double> vbValues = new List<double>();
List<double> vcValues = new List<double>();
List<double> iaValues = new List<double>();
List<double> ibValues = new List<double>();
List<double> icValues = new List<double>();
SampleRate sampleRate;
ValidateIndexes("VA", vaIndexes);
ValidateIndexes("VB", vbIndexes);
ValidateIndexes("VC", vcIndexes);
ValidateIndexes("IA", iaIndexes);
ValidateIndexes("IB", ibIndexes);
ValidateIndexes("IC", icIndexes);
// Create a new COMTRADE file parser
using (Parser parser = new Parser()
{
Schema = schema,
FileName = fileName,
InferTimeFromSampleRates = true
})
{
// Open COMTRADE data files
parser.OpenFiles();
faultDataSet.Frequency = schema.NominalFrequency;
sampleRate = schema.SampleRates.First();
if (sampleRate.Rate != 0)
faultDataSet.SetSampleRates((int)(sampleRate.Rate / faultDataSet.Frequency));
// Read all COMTRADE records
while (parser.ReadNext())
{
times.Add(parser.Timestamp.Ticks);
vaValues.Add(GetValue(parser, vaIndexes));
vbValues.Add(GetValue(parser, vbIndexes));
vcValues.Add(GetValue(parser, vcIndexes));
iaValues.Add(GetValue(parser, iaIndexes));
ibValues.Add(GetValue(parser, ibIndexes));
icValues.Add(GetValue(parser, icIndexes));
}
}
// Populate voltage data set
faultDataSet.Voltages.AN.Times = times.ToArray();
faultDataSet.Voltages.AN.Measurements = vaValues.ToArray();
faultDataSet.Voltages.BN.Times = times.ToArray();
faultDataSet.Voltages.BN.Measurements = vbValues.ToArray();
faultDataSet.Voltages.CN.Times = times.ToArray();
faultDataSet.Voltages.CN.Measurements = vcValues.ToArray();
// Populate current data set
faultDataSet.Currents.AN.Times = times.ToArray();
faultDataSet.Currents.AN.Measurements = iaValues.ToArray();
faultDataSet.Currents.BN.Times = times.ToArray();
faultDataSet.Currents.BN.Measurements = ibValues.ToArray();
faultDataSet.Currents.CN.Times = times.ToArray();
faultDataSet.Currents.CN.Measurements = icValues.ToArray();
}
private void COMTRADEButton_Click(object sender, EventArgs e)
{
string directory;
string rootFileName;
string configurationFileName;
DateTime?startTime = null;
using (OpenFileDialog dialog = new OpenFileDialog())
{
dialog.Filter = "COMTRADE Files|*.dat;*.d00|All Files|*.*";
dialog.Title = "Browse COMTRADE Files";
if (dialog.ShowDialog() == DialogResult.Cancel)
{
return;
}
if (!File.Exists(dialog.FileName))
{
return;
}
// Comtrade parsing will require a CFG file, make sure this exists...
directory = Path.GetDirectoryName(dialog.FileName) ?? string.Empty;
rootFileName = FilePath.GetFileNameWithoutExtension(dialog.FileName);
configurationFileName = Path.Combine(directory, rootFileName + ".cfg");
if (!File.Exists(configurationFileName))
{
return;
}
using (Parser parser = new Parser())
{
parser.Schema = new Schema(configurationFileName);
parser.FileName = dialog.FileName;
parser.InferTimeFromSampleRates = true;
// Open COMTRADE data files
parser.OpenFiles();
// Parse COMTRADE schema into channels
m_channels = parser.Schema.AnalogChannels
.Select(channel => new ParsedChannel()
{
Index = channel.Index,
Name = ((object)channel.ChannelName != null) ? string.Format("{0} ({1})", channel.StationName, channel.ChannelName) : channel.StationName,
TimeValues = new List <DateTime>(),
XValues = new List <object>(),
YValues = new List <object>()
}).ToList();
// Read values from COMTRADE data file
while (parser.ReadNext())
{
if ((object)startTime == null)
{
startTime = parser.Timestamp;
}
for (int i = 0; i < m_channels.Count; i++)
{
m_channels[i].TimeValues.Add(parser.Timestamp);
m_channels[i].XValues.Add(parser.Timestamp.Subtract(startTime.Value).TotalSeconds);
m_channels[i].YValues.Add(parser.Values[i]);
}
}
}
// Clear the list box and data chart
ChannelListBox.Items.Clear();
DataChart.Series.Clear();
// Populate the list box with channel names
ChannelListBox.Items.AddRange(m_channels
.Select(channel => string.Format("[{0}] {1}", channel.Index, channel.Name))
.Cast <object>()
.ToArray());
// Select the first channel in the list
ChannelListBox.SelectedIndex = 0;
// Change the title text of the window to show what file the user has open
m_fileName = dialog.SafeFileName;
Text = string.Format("COMTRADE - [{0}]", dialog.SafeFileName);
}
}
private void COMTRADEButton_Click(object sender, EventArgs e)
{
string directory;
string rootFileName;
string configurationFileName;
DateTime? startTime = null;
using (OpenFileDialog dialog = new OpenFileDialog())
{
dialog.Filter = "COMTRADE Files|*.dat;*.d00|All Files|*.*";
dialog.Title = "Browse COMTRADE Files";
if (dialog.ShowDialog() == DialogResult.Cancel)
return;
if (!File.Exists(dialog.FileName))
return;
// Comtrade parsing will require a CFG file, make sure this exists...
directory = Path.GetDirectoryName(dialog.FileName) ?? string.Empty;
rootFileName = FilePath.GetFileNameWithoutExtension(dialog.FileName);
configurationFileName = Path.Combine(directory, rootFileName + ".cfg");
if (!File.Exists(configurationFileName))
return;
using (Parser parser = new Parser())
{
parser.Schema = new Schema(configurationFileName);
parser.FileName = dialog.FileName;
parser.InferTimeFromSampleRates = true;
// Open COMTRADE data files
parser.OpenFiles();
// Parse COMTRADE schema into channels
m_channels = parser.Schema.AnalogChannels
.Select(channel => new ParsedChannel()
{
Index = channel.Index,
Name = ((object)channel.ChannelName != null) ? string.Format("{0} ({1})", channel.StationName, channel.ChannelName) : channel.StationName,
TimeValues = new List<DateTime>(),
XValues = new List<object>(),
YValues = new List<object>()
}).ToList();
// Read values from COMTRADE data file
while (parser.ReadNext())
{
if ((object)startTime == null)
startTime = parser.Timestamp;
for (int i = 0; i < m_channels.Count; i++)
{
m_channels[i].TimeValues.Add(parser.Timestamp);
m_channels[i].XValues.Add(parser.Timestamp.Subtract(startTime.Value).TotalSeconds);
m_channels[i].YValues.Add(parser.Values[i]);
}
}
}
// Clear the list box and data chart
ChannelListBox.Items.Clear();
DataChart.Series.Clear();
// Populate the list box with channel names
ChannelListBox.Items.AddRange(m_channels
.Select(channel => string.Format("[{0}] {1}", channel.Index, channel.Name))
.Cast<object>()
.ToArray());
// Select the first channel in the list
ChannelListBox.SelectedIndex = 0;
// Change the title text of the window to show what file the user has open
m_fileName = dialog.SafeFileName;
Text = string.Format("COMTRADE - [{0}]", dialog.SafeFileName);
}
}
