public async Task <ImmutableList <TProjection> > Query <TFact, TProjection>(
TFact start,
Specification <TFact, TProjection> specification,
CancellationToken cancellationToken = default) where TFact : class
{
if (start == null)
{
throw new ArgumentNullException(nameof(start));
}
var graph = factManager.Serialize(start);
var startReference = graph.Last;
var pipeline = specification.Pipeline;
if (pipeline.CanRunOnGraph)
{
var products = pipeline.Execute(startReference, graph);
return(specification.Projection switch
{
SimpleProjection simple => products
.Select(product => factManager.Deserialize <TProjection>(
graph, product.GetElement(simple.Tag)
))
.ToImmutableList(),
_ => throw new NotImplementedException()
});
/// <summary>
/// Create an alias for a projection
/// </summary>
/// <param name="projection">the projection instance</param>
/// <param name="alias">LambdaExpression returning an alias</param>
/// <returns>return NHibernate.Criterion.IProjection</returns>
public static IProjection As(this SimpleProjection projection,
Expression <Func <object> > alias)
{
string aliasContainer = ExpressionProcessor.FindMemberExpression(alias.Body);
return(projection.As(aliasContainer));
}
public static EmployeeWithActivitiesIncludeModel Create(ApplicationUser user, string searchValue, int number)
{
if (string.IsNullOrEmpty(searchValue))
{
return(SimpleProjection.Compile().Invoke(user));
}
return(Projection.Compile().Invoke(user, searchValue, number));
}
public static ProjectGroupLookupModel Create(ProjectGroup projectGroup, ICollection <ProjectStatus> filter)
{
if (filter == null || !filter.Any())
{
return(SimpleProjection.Compile().Invoke(projectGroup));
}
return(Projection.Compile().Invoke(projectGroup, filter));
}
public static ProjectMemberLookupModel Create(ApplicationUser user, ICollection <ActivityStatus> filter)
{
if (filter == null || !filter.Any())
{
return(SimpleProjection.Compile().Invoke(user));
}
return(Projection.Compile().Invoke(user, filter));
}
public static ActivityListIncludeModel Create(ActivityList activityList, string searchValue, int number)
{
if (string.IsNullOrEmpty(searchValue))
{
return(SimpleProjection.Compile().Invoke(activityList));
}
return(Projection.Compile().Invoke(activityList, searchValue, number));
}
public static SprintLookupModel Create(Sprint sprint, ICollection <ActivityStatus> filter)
{
if (filter == null || !filter.Any())
{
return(SimpleProjection.Compile().Invoke(sprint));
}
return(Projection.Compile().Invoke(sprint, filter));
}
private static ImmutableList <ProductAnchorProjection> DeserializeSimpleProjection(
Emitter emitter,
SimpleProjection simpleProjection,
Type type,
ImmutableList <Product> products,
Product anchor,
string collectionName)
{
var productProjections = products
.Select(product => new ProductAnchorProjection(
product,
anchor,
emitter.DeserializeToType(product.GetFactReference(simpleProjection.Tag), type),
collectionName
))
.ToImmutableList();
return(productProjections);
}
private static void TestSimpleProjection()
{
IList <JObject> objects = new List <JObject>();
JObject obj = new JObject();
obj.Add("test", JToken.FromObject(5f));
objects.Add(obj);
obj = new JObject();
obj.Add("test", JToken.FromObject(7f));
objects.Add(obj);
obj = new JObject();
obj.Add("test", JToken.FromObject(100f));
objects.Add(obj);
obj = new JObject();
obj.Add("test", JToken.FromObject(12f));
objects.Add(obj);
obj = new JObject();
obj.Add("test", JToken.FromObject(15f));
objects.Add(obj);
obj = new JObject();
obj.Add("test", JToken.FromObject(36f));
objects.Add(obj);
var projection = new SimpleProjection <float>("test");
IList <float> intendedProjections = new List <float>()
{
5f, 7f, 100f, 12f, 15f, 36f
};
var itr = 0;
foreach (var curObj in objects)
{
var value = projection.Project(curObj);
Util.Assert(Math.Abs(value - intendedProjections[itr++]) <= 0.01);
}
}
public static EmployeeWithActivitiesIncludeModel Create(ApplicationUser user)
{
return(SimpleProjection.Compile().Invoke(user));
}
public static ProjectGroupLookupModel Create(ProjectGroup projectGroup)
{
return(SimpleProjection.Compile().Invoke(projectGroup));
}
public static ProjectMemberLookupModel Create(ApplicationUser user)
{
return(SimpleProjection.Compile().Invoke(user));
}
public static ActivityListIncludeModel Create(ActivityList activityList)
{
return(SimpleProjection.Compile().Invoke(activityList));
}
public static SprintLookupModel Create(Sprint sprint)
{
return(SimpleProjection.Compile().Invoke(sprint));
}