/// <summary>
/// Checks if a Fact is used in a Threat Event Scenario.
/// </summary>
/// <param name="fact">Fact to be searched.</param>
/// <returns>True if the Fact is used in the Scenario, false otherwise.</returns>
public bool IsUsed([NotNull] Fact fact, [NotNull] IThreatEventScenario scenario)
{
var risk = _schemaManager.GetRisk(scenario);
var result = (risk?.AssociatedFacts?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.AssociatedFacts?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.ThreatEventFrequency?.AssociatedFacts?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.ThreatEventFrequency?.ContactFrequency?.AssociatedFacts
?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.ThreatEventFrequency?.ProbabilityOfAction?.AssociatedFacts
?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.Vulnerability?.AssociatedFacts?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.Vulnerability?.Difficulty?.AssociatedFacts?.Contains(fact.Id) ?? false) ||
(risk?.LossEventFrequency?.Vulnerability?.ThreatCapability?.AssociatedFacts?.Contains(fact.Id) ??
false) ||
(risk?.LossMagnitude?.AssociatedFacts?.Contains(fact.Id) ?? false) ||
(risk?.LossMagnitude?.SecondaryLossEventFrequency?.AssociatedFacts?.Contains(fact.Id) ?? false);
if (!result)
{
var primaryLosses = risk?.LossMagnitude?.PrimaryLosses?.ToArray();
if (primaryLosses?.Any() ?? false)
{
foreach (var loss in primaryLosses)
{
if (loss.AssociatedFacts?.Contains(fact.Id) ?? false)
{
result = true;
break;
}
}
}
}
if (!result)
{
var secondaryLosses = risk?.LossMagnitude?.SecondaryLosses?.ToArray();
if (secondaryLosses?.Any() ?? false)
{
foreach (var loss in secondaryLosses)
{
if (loss.AssociatedFacts?.Contains(fact.Id) ?? false)
{
result = true;
break;
}
}
}
}
return(result);
}
public static Risk GetRisk(this IThreatEventScenario scenario)
{
Risk result = null;
var model = scenario.Model;
if (model != null)
{
var schemaManager = new QuantitativeRiskSchemaManager(model);
result = schemaManager.GetRisk(scenario);
}
return(result);
}