public static async Task <DataHandler> CreateAsync(IStorageContext dataContext)
{
IScatteredPointContextBasedLinearWeightProviderOnSphere <IDelaunay_Voronoi> weightsProvider = new AlexNNIAdapter();
IAsyncMap <INodes, IDelaunay_Voronoi> interpolationContextFactory = new AlexNNIContextProvider();
//NOTE: interpolation context is cached in the produced interpolators (e.g. Delaunay triangulation is computed only once for each nodes set)
//We can use one cache for all of the requests (cache is not cleaned) as we use AllStationsStationLocator which returns all stations for any request
IScatteredPointsLinearInterpolatorOnSphereFactory pointsInterpolatorOnSphereFactory = new CachingLinearWeightsProviderFactory2 <IDelaunay_Voronoi>(weightsProvider, interpolationContextFactory);
int stationsCount = dataContext.StorageDefinition.DimensionsLengths["stations"];
var timeAxis = await dataContext.GetDataAsync("time");
ITimeAxisAvgProcessing timeAxisIntegrator = new TimeAxisAvgProcessing.TimeAxisAvgFacade(
timeAxis,
new TimeAxisProjections.DateTimeMoments(),
new WeightProviders.StepFunctionInterpolation(),
new DataCoverageEvaluators.ContinousMeansCoverageEvaluator());
IStationLocator stationLocator = new AllStationsStationLocator(stationsCount);
ICellRequestMapFactory <RealValueNodes> timeSeriesAveragerFactory = (await TimeIntegratorBasedAveragerFactory.CreateAsync(dataContext, timeAxisIntegrator, stationLocator));
ICellRequestMap <RealValueNodes> timeSeriesAverager = await timeSeriesAveragerFactory.CreateAsync();
//NOTE: Here we engage caching of timeseries. Timeseries is cached for all cells having the same time segment. It is acheived by HashBasedTimeSegmentOnlyConverter
ICellRequestMapFactory <RealValueNodes> cachingTimeSeriesAveragerFactory = new CellRequestMapCachingFactory <RealValueNodes>(timeSeriesAverager, new HashBasedTimeSegmentOnlyConverter());
ILinearCombintaionContextFactory compContextFactory = new LinearWeightsContextFactoryFacade <RealValueNodes>(pointsInterpolatorOnSphereFactory, cachingTimeSeriesAveragerFactory);
//NOTE: Hege caching is engaged as well. We cache the variogram for the cells with the same corresponding node set.
IVariogramProvider lmVariogramFitter = new LmDotNetVariogramProvider();
IVariogramProviderFactory variogramProviderFactory = new VariogramProviderCachingFactory(lmVariogramFitter);
IUncertaintyEvaluatorOfLinearCombination uncertatintyEvaluator = new PointsGausianFieldUncertaintyEvaluator(variogramProviderFactory);
return(new DataHandler(dataContext, compContextFactory, uncertatintyEvaluator));
}
/// <summary>
/// Transforms a comonent into a caching factory of components
/// </summary>
/// <param name="component">Component to decorate with hash based caching</param>
public CellRequestMapCachingFactory(ICellRequestMap <T> component, IEquatibleGeoCellConverter converter)
{
this.component = component;
this.converter = converter;
}
public CellRequestMapCacheDecorator(IEquatibleGeoCellConverter converter, ICellRequestMap <T> component)
{
this.converter = converter;
this.component = component;
}
