/// <summary>
/// Filter the specified phaseInput.
/// </summary>
/// <returns>The filter.</returns>
/// <param name="phaseInput">Phase input.</param>
public IEnumerable <PhaseData <SensorReading> > Filter(PhaseInput <SensorReading> phaseInput)
{
var results = new List <PhaseData <SensorReading> >();
foreach (var input in phaseInput.Input)
{
// input = name plus collection of data records
foreach (var record in input.Data)
{
// each data record is a single sensor reading
foreach (var param in phaseInput.Parameters)
{
// check to see if desired field exists for this reading
// if not, proceed to next parameter
var filterField = record.GetType().GetProperty(param.Field);
if (filterField == null)
{
continue;
}
// if it does exist, check to see if value satisfies clause
// collection for this parameter ...
var filterValue = filterField.GetValue(record, null).ToString();
var isMatch = param.MatchesClause(filterValue);
// if we fail to match, start over with next record
// (ends parameter for-each)
if (!isMatch)
{
break;
}
// if valid match AND user chose to split output,
// update result names to produce output split
string resultName = (param.UseOutputSplit()
? FilterManager.GetFilterFilename(input.Name, filterValue)
: input.Name);
if (!results.Select(x => x.Name).Contains(resultName))
{
var newResult = new PhaseData <SensorReading>
{
Name = resultName,
Data = new List <SensorReading> {
record
}
};
results.Add(newResult);
}
else
{
var existingResult = results.Where(x => x.Name.Equals(resultName)).FirstOrDefault();
existingResult.Data.Add(record);
}
}
}
}
return(results);
}
/// <summary>
/// Filter the specified phaseInput.
/// </summary>
/// <returns>The filter.</returns>
/// <param name="phaseInput">Phase input.</param>
public IEnumerable <PhaseData <SensorReading> > Filter(PhaseInput <SensorReading> phaseInput)
{
var param = phaseInput.Parameters.FirstOrDefault();
if (param == null)
{
return(null);
}
var filterField = typeof(SensorReading).GetProperty(param.Field);
var success = decimal.TryParse(param.GetClauseValue(CommandParameters.Percentage), out decimal completionPercentage);
if (filterField == null || !success)
{
return(null);
}
// find a list of distinct values of the desired field across all data sets
var distinctValues = phaseInput.Input.Select(x => x.Data.Select(y =>
Parameter.GetFilterValue(filterField, y))).SelectMany(x => x).Distinct().ToList();
// only include records from a given data set whose field values
// are present in a matching percentage of the other data sets
for (int i = distinctValues.Count() - 1; i >= 0; i--)
{
var distinctValue = distinctValues[i];
var matchingDataSetCount = phaseInput.Input.Count(x => x.Data.Select(y => Parameter.GetFilterValue(filterField, y)).Contains(distinctValue));
var matchingPercentage = ((decimal)matchingDataSetCount /
(decimal)phaseInput.Input.Count()) * 100.0M;
if (matchingPercentage < completionPercentage)
{
distinctValues.RemoveAt(i);
}
}
// double check ...
LogManager.Info("The following distinct field values were found for Completion Filter:\n\t" +
string.Join("\n\t", distinctValues), this);
// proceed with results gathering ...
var results = new List <PhaseData <SensorReading> >();
foreach (var input in phaseInput.Input)
{
foreach (var record in input.Data)
{
var filterValue = Parameter.GetFilterValue(filterField, record);
var isMatch = distinctValues.Contains(filterValue);
if (!isMatch)
{
continue;
}
// if valid match AND user chose to split output,
// update result names to produce output split
string resultName = (param.UseOutputSplit()
? FilterManager.GetFilterFilename(input.Name, filterValue)
: input.Name);
// add the data to the results list
if (!results.Select(x => x.Name).Contains(resultName))
{
var newResult = new PhaseData <SensorReading>
{
Name = resultName,
Data = new List <SensorReading> {
record
}
};
results.Add(newResult);
}
else
{
var existingResult = results.Where(x => x.Name.Equals(resultName)).FirstOrDefault();
existingResult.Data.Add(record);
}
}
}
return(results);
}
