/// <summary>
/// Gets the top level feature graphs, that is the graphs
/// for features that do not have a parent feature.
/// </summary>
/// <returns>
/// A collection of <see cref="FeatureGraph"/> instances representing
/// the dependency graphs for the unparented features.
/// </returns>
public async Task <IEnumerable <FeatureGraph> > GetTopLevelFeatureGraphsAsync()
{
var features = (await _featureManager.GetAllDbFeatures()).ToList();
var invocations = (await _analysisReportManager.GetAllDbInvocations()).ToList();
_logger.LogInformation("Calculating top level feature graphs for {FeatureCount} features and {InvocationCount} invocations.",
features.Count, invocations.Count);
var invocationFeatures = (from invocation in invocations
select new
{
Invocation = invocation,
Features = features.Where(f => f.DirectInvocationSignatures != null && f.DirectInvocationSignatures.Intersect(invocation.InvokedSignatures).Any()).ToList()
}).ToList();
var featuresInvocations = (from feature in features
select new
{
Feature = feature,
Invocations = invocationFeatures.Where(i => feature.DirectInvocationSignatures != null && feature.DirectInvocationSignatures.Contains(i.Invocation.Signature))
}).ToList();
var featureGraphs = new Dictionary <DbFeature, FeatureGraph>();
foreach (var feature in featuresInvocations)
{
var featureGraph = new FeatureGraph
{
FeatureName = feature.Feature.Title,
ProductName = feature.Feature.Product,
GroupName = feature.Feature.Group,
Tags = feature.Feature.Tags,
Version = feature.Feature.Version,
DependsOn = new List <FeatureGraph>()
};
featureGraphs.Add(feature.Feature, featureGraph);
}
var unparentedGraphs = new List <FeatureGraph>(featureGraphs.Values);
foreach (var feature in featuresInvocations)
{
var featureGraph = featureGraphs[feature.Feature];
var dependencies = feature.Invocations.SelectMany(i => i.Features).Select(f => featureGraphs[f]).ToList();
dependencies.ForEach(f => unparentedGraphs.Remove(f));
featureGraph.DependsOn.AddRange(dependencies.Distinct());
}
return(unparentedGraphs);
}
/// <summary>
/// Gets the top level feature graphs, that is the graphs
/// for features that do not have a parent feature.
/// </summary>
/// <returns>
/// A collection of <see cref="FeatureGraph"/> instances representing
/// the dependency graphs for the unparented features.
/// </returns>
public async Task <IEnumerable <FeatureGraph> > GetTopLevelFeatureGraphsAsync()
{
using (var session = Database.DocumentStore.OpenAsyncSession())
{
var features = await session.Query <DbFeature>().ToListAsync();
var invocations = await session.Query <DbInvocation>().ToListAsync();
var invocationFeatures = (from invocation in invocations
select new
{
Invocation = invocation,
Features = features.Where(f => f.DirectInvocationSignatures != null && f.DirectInvocationSignatures.Intersect(invocation.InvokedSignatures).Any()).ToList()
}).ToList();
var featuresInvocations = (from feature in features
select new
{
Feature = feature,
Invocations = invocationFeatures.Where(i => feature.DirectInvocationSignatures != null && feature.DirectInvocationSignatures.Contains(i.Invocation.Signature))
}).ToList();
var featureGraphs = new Dictionary <DbFeature, FeatureGraph>();
foreach (var feature in featuresInvocations)
{
var featureGraph = new FeatureGraph
{
FeatureName = feature.Feature.Title,
ProductName = feature.Feature.Product,
GroupName = feature.Feature.Group,
Tags = feature.Feature.Tags,
Version = feature.Feature.Version,
DependsOn = new List <FeatureGraph>()
};
featureGraphs.Add(feature.Feature, featureGraph);
}
var unparentedGraphs = new List <FeatureGraph>(featureGraphs.Values);
foreach (var feature in featuresInvocations)
{
var featureGraph = featureGraphs[feature.Feature];
var dependencies = feature.Invocations.SelectMany(i => i.Features).Select(f => featureGraphs[f]).ToList();
dependencies.ForEach(f => unparentedGraphs.Remove(f));
featureGraph.DependsOn.AddRange(dependencies.Distinct());
}
return(unparentedGraphs);
}
}
public async Task <FeatureGraph> GetFeatureGraphAsync(string productName, string featureName, string version)
{
// Create the result variable
var result = new FeatureGraph();
result.ProductName = productName;
result.FeatureName = featureName;
result.Version = version;
// For now, just use all tree as a source
var trees = (await GetTopLevelFeatureGraphsAsync()).ToList();
trees.ForEach(tree => ExtractFeatureRelations(tree, result));
return(result);
}
private void ExtractFeatureRelations(FeatureGraph node, FeatureGraph result)
{
if (node.DescribesSameFeature(result))
{
// If it is the first time we encounter ourselves, continue on
if (result.DependsOn.Count == 0)
{
foreach (var dependency in node.DependsOn)
{
result.DependsOn.Add(new FeatureGraph()
{
ProductName = dependency.ProductName,
FeatureName = dependency.FeatureName,
GroupName = dependency.GroupName,
Version = dependency.Version
});
}
}
// otherwise, return
else
{
return;
}
}
if (node.DependsOn.Any(dependency => dependency.DescribesSameFeature(result)) &&
!result.Dependants.Any(dependant => dependant.DescribesSameFeature(node)))
{
result.Dependants.Add(new FeatureGraph()
{
ProductName = node.ProductName,
FeatureName = node.FeatureName,
GroupName = node.GroupName,
Version = node.Version
});
}
node.DependsOn.ForEach(dependency => ExtractFeatureRelations(dependency, result));
}
