private static TemplatedExpressionParser InitializePointTagExpressionParser()
{
TemplatedExpressionParser pointTagExpressionParser;
// Get point tag name expression from configuration
try
{
// Note that both manager and service application may need this expression and each will have their own setting, users
// will need to synchronize these expressions in both config files for consistent custom point tag naming
ConfigurationFile configFile = ConfigurationFile.Current;
CategorizedSettingsElementCollection settings = configFile.Settings["systemSettings"];
settings.Add("PointTagNameExpression", DefaultPointTagNameExpression, "Defines the expression used to create point tag names. NOTE: if updating this setting, synchronize value in both the manager and service config files.");
pointTagExpressionParser = new TemplatedExpressionParser()
{
TemplatedExpression = configFile.Settings["systemSettings"]["PointTagNameExpression"].Value
};
}
catch
{
pointTagExpressionParser = new TemplatedExpressionParser()
{
TemplatedExpression = DefaultPointTagNameExpression
};
}
return pointTagExpressionParser;
}
public static string CreatePointTag(string companyAcronym, string deviceAcronym, string vendorAcronym, string signalTypeAcronym, int signalIndex = -1, char phase = '_')
{
// Initialize point tag expression parser
if ((object)s_pointTagExpressionParser == null)
s_pointTagExpressionParser = InitializePointTagExpressionParser();
// Initialize signal type dictionary
if ((object)s_signalTypes == null)
s_signalTypes = InitializeSignalTypes();
Dictionary<string, string> substitutions;
DataRow signalTypeValues;
if (!s_signalTypes.TryGetValue(signalTypeAcronym, out signalTypeValues))
throw new ArgumentOutOfRangeException("signalTypeAcronym", "No database definition was found for signal type \"" + signalTypeAcronym + "\"");
// Validate key acronyms
if ((object)companyAcronym == null)
companyAcronym = "";
if ((object)deviceAcronym == null)
deviceAcronym = "";
if ((object)vendorAcronym == null)
vendorAcronym = "";
companyAcronym = companyAcronym.Trim();
deviceAcronym = deviceAcronym.Trim();
vendorAcronym = vendorAcronym.Trim();
// Define fixed parameter replacements
substitutions = new Dictionary<string, string>
{
{ "{CompanyAcronym}", companyAcronym },
{ "{DeviceAcronym}", deviceAcronym },
{ "{VendorAcronym}", vendorAcronym },
{ "{SignalIndex}", signalIndex.ToString() },
{ "{Phase}", phase.ToString() }
};
// Define signal type field value replacements
DataColumnCollection columns = signalTypeValues.Table.Columns;
for (int i = 0; i < columns.Count; i++)
{
substitutions.Add(string.Format("{{SignalType.{0}}}", columns[i].ColumnName), signalTypeValues[i].ToNonNullString());
}
return s_pointTagExpressionParser.Execute(substitutions);
}
