/// <summary>
/// Reload Macrodyne INI based configuration file.
/// </summary>
public void Refresh()
{
if ((object)m_iniFile == null)
{
return;
}
// The only time we need an access lock is when we reload the config file...
lock (m_iniFile)
{
if (File.Exists(m_iniFile.FileName))
{
ConfigurationCell pmuCell;
int phasorCount, pmuCount, x, y;
m_defaultPhasorV = new PhasorDefinition(null, 0, m_iniFile["DEFAULT", "PhasorV", DefaultVoltagePhasorEntry]);
m_defaultPhasorI = new PhasorDefinition(null, 0, m_iniFile["DEFAULT", "PhasorI", DefaultCurrentPhasorEntry]);
m_defaultFrequency = new FrequencyDefinition(null, m_iniFile["DEFAULT", "Frequency", DefaultFrequencyEntry]);
FrameRate = ushort.Parse(m_iniFile["CONFIG", "SampleRate", "30"]);
// We read all cells in the config file into their own configuration cell collection - cells parsed
// from the configuration frame will be mapped to their associated config file cell by ID label
// when the configuration cell is parsed from the configuration frame
if (m_configurationFileCells == null)
{
m_configurationFileCells = new ConfigurationCellCollection(int.MaxValue);
}
m_configurationFileCells.Clear();
// Load phasor data for each section in config file...
foreach (string section in m_iniFile.GetSectionNames())
{
if (section.Length > 0)
{
// Make sure this is not a special section
if (string.Compare(section, "DEFAULT", true) != 0 && string.Compare(section, "CONFIG", true) != 0)
{
// Create new PMU entry structure from config file settings...
phasorCount = int.Parse(m_iniFile[section, "NumberPhasors", "0"]);
// Check for PDC code
int pdcID = int.Parse(m_iniFile[section, "PDC", "-1"]);
if (pdcID == -1)
{
// No PDC entry exists, assume this is a PMU
pmuCell = new ConfigurationCell(this);
pmuCell.IDCode = ushort.Parse(m_iniFile[section, "PMU", Cells.Count.ToString()]);
pmuCell.SectionEntry = section; // This will automatically assign ID label as first 4 digits of section
pmuCell.StationName = m_iniFile[section, "Name", section];
pmuCell.PhasorDefinitions.Clear();
for (x = 0; x < phasorCount; x++)
{
pmuCell.PhasorDefinitions.Add(new PhasorDefinition(pmuCell, x + 1, m_iniFile[section, "Phasor" + (x + 1), DefaultVoltagePhasorEntry]));
}
pmuCell.FrequencyDefinition = new FrequencyDefinition(pmuCell, m_iniFile[section, "Frequency", DefaultFrequencyEntry]);
m_configurationFileCells.Add(pmuCell);
}
else
{
// This is a PDC, need to define one virtual entry for each PMU
pmuCount = int.Parse(m_iniFile[section, "NumberPMUs", "0"]);
for (x = 0; x < pmuCount; x++)
{
// Create a new PMU cell for each PDC entry that exists
pmuCell = new ConfigurationCell(this);
// For BPA INI files, PMUs tradionally have an ID number indexed starting at zero or one - so we multiply
// ID by 1000 and add index to attempt to create a fairly unique ID to help optimize downstream parsing
pmuCell.IDCode = unchecked ((ushort)(pdcID * 1000 + x));
pmuCell.SectionEntry = string.Format("{0}pmu{1}", section, x); // This will automatically assign ID label as first 4 digits of section
pmuCell.StationName = string.Format("{0} - Device {1}", m_iniFile[section, "Name", section], (x + 1));
pmuCell.PhasorDefinitions.Clear();
for (y = 0; y < 2; y++)
{
pmuCell.PhasorDefinitions.Add(new PhasorDefinition(pmuCell, y + 1, m_iniFile[section, "Phasor" + ((x * 2) + (y + 1)), DefaultVoltagePhasorEntry]));
}
pmuCell.FrequencyDefinition = new FrequencyDefinition(pmuCell, m_iniFile[section, "Frequency", DefaultFrequencyEntry]);
m_configurationFileCells.Add(pmuCell);
}
}
}
}
}
// Associate single Macrodyne cell with its associated cell hopefully defined in INI file
if (m_configurationFileCells.Count > 0 && (object)Cells != null && Cells.Count > 0)
{
ConfigurationCell configurationFileCell = null;
// Assign INI file cell associating by section entry
ConfigurationCell cell = Cells[0];
// Attempt to associate this configuration cell with information read from external INI based configuration file
m_configurationFileCells.TryGetBySectionEntry(cell.SectionEntry, ref configurationFileCell);
cell.ConfigurationFileCell = configurationFileCell;
m_onlineDataFormatFlags = Common.GetFormatFlagsFromPhasorCount(cell.PhasorDefinitions.Count);
m_stationName = cell.StationName;
}
}
else
{
throw new InvalidOperationException("Macrodyne config file \"" + m_iniFile.FileName + "\" does not exist.");
}
}
// In case other classes want to know, we send out a notification that the config file has been reloaded (make sure
// you do this after the write lock has been released to avoid possible dead-lock situations)
if (ConfigurationFileReloaded != null)
{
ConfigurationFileReloaded(this, EventArgs.Empty);
}
}