protected virtual async Task <BarChart> ProjectChart(Summary <JObject, float> summary, Filter <Criterion> filter,
TimeInterval timeInterval, PropertyValueCategorizer categorizer, string drilldownController, string drilldownAction)
{
// For each time interval, add a datum to the dataset
var rawData = await apiAccess.PullKeyDeviceActivity(timeInterval.Start, timeInterval.End);
// Parse string to JObject
var rootObject = JObject.Parse(rawData);
if (!rootObject.TryGetValue("Data", out var dataArrayToken))
{
throw new JsonArgumentException();
}
// Convert data array token to JEnumerable and
// filter out unwanted data
var dataArray = dataArrayToken.AsJEnumerable();
dataArray = filter.FilterData(dataArray);
// Project each token to a value, and store
// the value in the associated category's
// collection
var projectedData = new Dictionary <string, Collection <JObject> >();
foreach (var token in dataArray)
{
if (token.Type != JTokenType.Object)
{
throw new JsonArgumentException();
}
try{
var obj = (JObject)token;
var key = categorizer.Categorize(obj);
// If the category does not yet exist, add it
if (!projectedData.ContainsKey(key))
{
projectedData.Add(key, new Collection <JObject>());
}
// Add the value to the category's collection
projectedData[key].Add(obj);
} catch (JsonArgumentException) {}
}
// Summarize each category's collection into a summary value,
// such as a count, etc.
var summaryValues = new Dictionary <string, float>();
foreach (var kvp in projectedData)
{
summaryValues.Add(kvp.Key, summary.Summarize(kvp.Value));
}
int backgroundHue = 0;
int borderHue = 0;
var hueIncrement = 360 / summaryValues.Count();
var orderedSummaryValues = summaryValues.OrderByDescending(s => s.Value).ToList();
var bars = orderedSummaryValues.Select(s => new Bar()
{
Value = (int)s.Value,
Label = s.Key,
BackgroundColor = $"hsla({PostIncHue(ref backgroundHue, hueIncrement)}, {Bar.BackgroundSaturation}, {Bar.BackgroundLightness}, {Bar.BackgroundAlpha})",
BorderColor = $"hsla({PostIncHue(ref borderHue, hueIncrement)}, {Bar.BorderSaturation}, {Bar.BorderLightness}, {Bar.BorderAlpha})",
DrilldownController = drilldownController,
DrilldownAction = drilldownAction,
DrilldownQueryParameters = new {
summary, // Summarize drilldown data in the same way
preFilter = filter,
filter = new Filter <CategorizerCriterion>() // Match data with the same category / key as this bar
{
Criteria = new List <CategorizerCriterion>()
{
new CategorizerCriterion(s.Key, categorizer)
}
},
timeSeries = new TimeSeries(new List <TimeInterval>()
{
new TimeInterval(DateTime.ParseExact("2019-06-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-06-30", "yyyy-MM-dd", CultureInfo.InvariantCulture), "June"),
new TimeInterval(DateTime.ParseExact("2019-07-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-07-31", "yyyy-MM-dd", CultureInfo.InvariantCulture), "July"),
new TimeInterval(DateTime.ParseExact("2019-08-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-08-31", "yyyy-MM-dd", CultureInfo.InvariantCulture), "August"),
new TimeInterval(DateTime.ParseExact("2019-09-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-09-30", "yyyy-MM-dd", CultureInfo.InvariantCulture), "September")
})
}
}).ToList();
return(new BarChart()
{
Bars = bars,
Label = "Dataset"
});
}
protected virtual async Task <GroupedBarChart> ProjectChart(Filter <Criterion> filter, TimeInterval timeInterval,
PropertyValueCategorizer superDatasetCategorizer, PropertyValueCategorizer subDatasetCategorizer,
Summary <JObject, float> summary, string drilldownAction, string drilldownController)
{
var rawData = await apiAccess.PullKeyDeviceActivity(timeInterval.Start, timeInterval.End);
// Parse string to JObject
var rootObject = JObject.Parse(rawData);
if (!rootObject.TryGetValue("Data", out var dataArrayToken))
{
throw new JsonArgumentException();
}
// Convert data array token to JEnumerable and
// filter out unwanted data
var dataArray = dataArrayToken.AsJEnumerable();
dataArray = filter.FilterData(dataArray);
var labeledCollections = new Dictionary <string, IDictionary <string, IEnumerable <JObject> > >();
// Categorize each token to a super- and sub- dataset,
// and store in the appropriate collection
foreach (var token in dataArray)
{
if (token.Type != JTokenType.Object)
{
throw new JsonArgumentException();
}
try{
var obj = (JObject)token;
var superDatasetCategory = superDatasetCategorizer.Categorize(obj);
var subDatasetCategory = subDatasetCategorizer.Categorize(obj);
// Create dictionary entries if they don't already exist
if (!labeledCollections.ContainsKey(superDatasetCategory))
{
labeledCollections.Add(superDatasetCategory, new Dictionary <string, IEnumerable <JObject> >());
}
if (!labeledCollections[superDatasetCategory].ContainsKey(subDatasetCategory))
{
labeledCollections[superDatasetCategory].Add(subDatasetCategory, new Collection <JObject>());
}
// Add the object to the corresponding collection
labeledCollections[superDatasetCategory][subDatasetCategory].Append(obj);
} catch (JsonArgumentException) {}
}
// Summarize each sub-dataset of each dataset into a summary value,
// such as a mean, median, maximum, etc.
var summaryValues = new Dictionary <string, IDictionary <string, float> >();
foreach (var superDataset in labeledCollections)
{
summaryValues.Add(superDataset.Key, new Dictionary <string, float>());
// Summarize each category within the dataset
foreach (var subDataset in superDataset.Value)
{
// For each sub-dataset in this super-dataset,
// construct a summary and store it in the summaryValues
summaryValues[superDataset.Key].Add(
subDataset.Key,
summary.Summarize(subDataset.Value));
}
}
// Construct an ordered list of subLabels for the inner data points.
// This order must be maintained across all datasets, so this
// list can be used as the ordering of keys.
var subLabels = summaryValues.Any() ? summaryValues.First().Value.Select(kvp => kvp.Key).ToList() : new List <string>();
// Each dataset gets its own color
int backgroundHue = 0;
int borderHue = 0;
var hueIncrement = summaryValues.Count() == 0 ? 0 : 360 / summaryValues.Count();
// Construct a list of bar groups using the summaryValues and the subLabels as a
// guide for inner key ordering. Note: Select() preserves ordering, so using
// subLabels.Select() will allow a projection of values preserving
// the inner ordering.
var drilldownActions = subLabels.Select(subLabel => drilldownAction).ToList();
var drilldownControllers = subLabels.Select(subLabel => drilldownController).ToList();
var barGroups = summaryValues.Select(kvp => new BarGroup()
{
Label = kvp.Key,
BackgroundColor = $"hsla({PostIncHue(ref backgroundHue, hueIncrement)}, {BarGroup.BackgroundSaturation}, {BarGroup.BackgroundLightness}, {BarGroup.BackgroundAlpha})",
BorderColor = $"hsla({PostIncHue(ref borderHue, hueIncrement)}, {BarGroup.BorderSaturation}, {BarGroup.BorderLightness}, {BarGroup.BorderAlpha})",
Values = subLabels.Select(label => (int)kvp.Value[label]).ToList(),
DrilldownActions = drilldownActions,
DrilldownControllers = drilldownControllers,
DrilldownQueryParameters = subLabels.Select(subLabel => (object)new {
preFilter = filter,
filter = new Filter <Criterion>(
new List <Criterion>()
{
new CategorizerCriterion(kvp.Key, superDatasetCategorizer),
new CategorizerCriterion(subLabel, subDatasetCategorizer)
}
), // Drilldown data should match the same super- and sub-datasets (filter)
summary,
timeSeries = new TimeSeries(new List <TimeInterval>()
{
new TimeInterval(DateTime.ParseExact("2019-06-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-06-30", "yyyy-MM-dd", CultureInfo.InvariantCulture), "June"),
new TimeInterval(DateTime.ParseExact("2019-07-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-07-31", "yyyy-MM-dd", CultureInfo.InvariantCulture), "July"),
new TimeInterval(DateTime.ParseExact("2019-08-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-08-31", "yyyy-MM-dd", CultureInfo.InvariantCulture), "August"),
new TimeInterval(DateTime.ParseExact("2019-09-01", "yyyy-MM-dd", CultureInfo.InvariantCulture),
DateTime.ParseExact("2019-09-30", "yyyy-MM-dd", CultureInfo.InvariantCulture), "September")
})
}).ToList()
}).ToList();
return(new GroupedBarChart()
{
BarGroups = barGroups,
Labels = subLabels
});
}
public virtual async Task <IViewComponentResult> InvokeAsync(Summary <JObject, float> summary, Filter <Criterion> filter,
TimeInterval timeInterval, PropertyValueCategorizer categorizer, string drilldownController, string drilldownAction)
{
var barChart = await ProjectChart(summary, filter, timeInterval, categorizer, drilldownController, drilldownAction);
return(await Task.Run(() => View(barChart)));
}
public virtual async Task <IViewComponentResult> InvokeAsync(Summary <JObject, float> summary, Filter <Criterion> filter,
TimeInterval timeInterval, PropertyValueCategorizer superDatasetCategorizer, PropertyValueCategorizer subDatasetCategorizer,
string drilldownAction, string drilldownController, bool pivot = false)
{
var barChart = await ProjectChart(filter, timeInterval, superDatasetCategorizer, subDatasetCategorizer,
summary, drilldownAction, drilldownController);
return(View(pivot ? barChart.Pivot() : barChart));
}