public static IList<DemoMetadata> GetDemos(Assembly sourceAssembly, string firstName = null)
{
Contract.Requires(sourceAssembly != null);
var catalog = new AssemblyCatalog(sourceAssembly);
var mefItems = from export in catalog.GetExports<FrameworkElement>()
where export.ContractName == DemoMetadataAttribute.DemoContractName
select DemoMetadata.Create(export);
var xamlItems = XamlComponent.GetDemos(sourceAssembly);
var items = mefItems.Concat(xamlItems).OrderBy(_ => _.Name).ToList();
if (firstName != null) {
var welcome = items.Where(metadata => metadata.Name.Equals(firstName)).FirstOrDefault();
if (welcome != null) {
items.Remove(welcome);
items.Insert(0, welcome);
}
}
return items.ToReadOnlyCollection();
}
public void GetExports()
{
var catalog = new AssemblyCatalog(typeof(AssemblyCatalogTests).Assembly);
Expression<Func<ExportDefinition, bool>> constraint = (ExportDefinition exportDefinition) => exportDefinition.ContractName == AttributedModelServices.GetContractName(typeof(MyExport));
IEnumerable<Tuple<ComposablePartDefinition, ExportDefinition>> matchingExports = catalog.GetExports(constraint);
Assert.IsNotNull(matchingExports);
Assert.IsTrue(matchingExports.Count() >= 0);
IEnumerable<Tuple<ComposablePartDefinition, ExportDefinition>> expectedMatchingExports = catalog.Parts
.SelectMany(part => part.ExportDefinitions, (part, export) => new Tuple<ComposablePartDefinition, ExportDefinition>(part, export))
.Where(partAndExport => partAndExport.Item2.ContractName == AttributedModelServices.GetContractName(typeof(MyExport)));
Assert.IsTrue(matchingExports.SequenceEqual(expectedMatchingExports));
}