private static IProjector BuildProjector(IServiceProvider serviceProvider)
{
var projector = new Projector();
var partManager = serviceProvider.GetRequiredService <ApplicationPartManager>();
var projectionFeature = new ProjectionFeature();
partManager.PopulateFeature(projectionFeature);
foreach (var type in projectionFeature.Projections)
{
var inspector = new ProjectionInspector(type);
var descriptors = inspector.GetDescriptors();
foreach (var descriptor in descriptors)
{
var provider = Activator.CreateInstance(typeof(ProjectionInvoker <,> .Provider).MakeGenericType(descriptor.SourceType, descriptor.ProjectionType),
type,
descriptor);
var registerMethodDefinition = typeof(IProjector).GetMethods().Single(p => p.Name == "RegisterProjection" && p.IsGenericMethodDefinition && p.GetGenericArguments().Length == 2);
var registerMethod = registerMethodDefinition.MakeGenericMethod(descriptor.SourceType, descriptor.ProjectionType);
registerMethod.Invoke(projector, new object[] { provider });
}
}
return(projector);
}
public void PocoProjectionTest()
{
var projectionInspector = new ProjectionInspector(typeof(PocoProjection));
var projectionDescriptors = projectionInspector.GetDescriptors();
Assert.AreEqual(6, projectionDescriptors.Count());
var first = projectionDescriptors.First();
Assert.AreEqual(typeof(ProjectionSource1), first.SourceType);
Assert.IsFalse(first.MultipleResults);
Assert.AreEqual(typeof(ProjectionResult <string>), first.ProjectionType);
Assert.AreEqual(typeof(PocoProjection).GetMethod("Project"), first.Member);
var second = projectionDescriptors.Skip(1).First();
Assert.AreEqual(typeof(ProjectionSource1), second.SourceType);
Assert.IsFalse(second.MultipleResults);
Assert.AreEqual(typeof(ProjectionResult <string>), second.ProjectionType);
Assert.AreEqual(typeof(PocoProjection).GetMethod("ProjectAsync"), second.Member);
var third = projectionDescriptors.Skip(2).First();
Assert.AreEqual(typeof(ProjectionSource2), third.SourceType);
Assert.IsFalse(third.MultipleResults);
Assert.AreEqual(typeof(ProjectionResult <string>), third.ProjectionType);
Assert.AreEqual(typeof(PocoProjection).GetMethod("Project2"), third.Member);
var fourth = projectionDescriptors.Skip(3).First();
Assert.AreEqual(typeof(ProjectionSource2), fourth.SourceType);
Assert.IsFalse(fourth.MultipleResults);
Assert.AreEqual(typeof(ProjectionResult <string>), fourth.ProjectionType);
Assert.AreEqual(typeof(PocoProjection).GetMethod("ProjectToXX"), fourth.Member);
var fith = projectionDescriptors.Skip(4).First();
Assert.AreEqual(typeof(ProjectionSource2), fith.SourceType);
Assert.IsFalse(fith.MultipleResults);
Assert.AreEqual(typeof(ProjectionResult <string>), fith.ProjectionType);
Assert.AreEqual(typeof(PocoProjection).GetMethod("ABC"), fith.Member);
var sixth = projectionDescriptors.Skip(5).First();
Assert.AreEqual(typeof(ProjectionSource1), sixth.SourceType);
Assert.IsFalse(sixth.MultipleResults);
Assert.AreEqual(typeof(object), sixth.ProjectionType);
Assert.AreEqual(typeof(PocoProjection).GetMethod("ABC2"), sixth.Member);
}
