private SubjectMetaViewModel GetSubjectMetaViewModelFromQuery(SubjectMetaQueryContext query)
{
var observations = _observationService.FindObservations(query).AsQueryable();
var locations = new Dictionary <string, ObservationalUnitsMetaViewModel>();
var timePeriods = new TimePeriodsMetaViewModel();
var filters = new Dictionary <string, FilterMetaViewModel>();
var indicators = new Dictionary <string, IndicatorsMetaViewModel>();
var stopwatch = Stopwatch.StartNew();
stopwatch.Start();
if (query.Locations == null)
{
locations = GetObservationalUnits(observations);
_logger.LogTrace("Got Observational Units in {Time} ms", stopwatch.Elapsed.TotalMilliseconds);
stopwatch.Restart();
}
if (query.TimePeriod == null && query.Locations != null)
{
timePeriods = GetTimePeriods(observations);
_logger.LogTrace("Got Time Periods in {Time} ms", stopwatch.Elapsed.TotalMilliseconds);
stopwatch.Restart();
}
if (query.TimePeriod != null)
{
filters = GetFilters(query.SubjectId, observations, false);
_logger.LogTrace("Got Filters in {Time} ms", stopwatch.Elapsed.TotalMilliseconds);
stopwatch.Restart();
indicators = GetIndicators(query.SubjectId);
_logger.LogTrace("Got Indicators in {Time} ms", stopwatch.Elapsed.TotalMilliseconds);
}
stopwatch.Stop();
// Only data relevant to the step being executed in the table tool needs to be returned hence the
// null checks above so only the minimum requisite DB calls for the task are performed.
return(new SubjectMetaViewModel
{
Filters = filters,
Indicators = indicators,
Locations = locations,
TimePeriod = timePeriods
});
}
private IEnumerable <Observation> GetObservations(ObservationQueryContext queryContext)
{
return(_observationService.FindObservations(queryContext));
}
