- Adding GetExtensionsTopology to ExtensionManager. This returns the topology for the currently active extensions.

- DefaultCompositionStrategy has GetModules/Dependencies for the host to call when spinning up shells for the tenants.
- Unit tests.

--HG--
branch : dev

src/Orchard.Tests/Environment/DefaultOrchardHostTests.cs

@@ -77,6 +77,10 @@ namespace Orchard.Tests.Environment {
                 return Enumerable.Empty<ExtensionEntry>();
             }
 
+            public IEnumerable<Type> GetExtensionsTopology() {
+                throw new NotImplementedException();
+            }
+
             public void InstallExtension(string extensionType, HttpPostedFileBase extensionBundle) {
                 throw new NotImplementedException();
             }

src/Orchard.Tests/Extensions/ExtensionManagerTests.cs

@@ -16,7 +16,6 @@ namespace Orchard.Tests.Extensions {
         public void Init() {
             var builder = new ContainerBuilder();
             _folders = new StubFolders();
-            //builder.RegisterModule(new ImplicitCollectionSupportModule());
             builder.RegisterInstance(_folders).As<IExtensionFolders>();
             builder.RegisterType<ExtensionManager>().As<IExtensionManager>();
             _container = builder.Build();
@@ -175,5 +174,21 @@ features:
             }
         }
 
+        [Test]
+        public void ExtensionManagerShouldReturnTopology() {
+            var topology = _manager.GetExtensionsTopology();
+
+            Assert.That(topology.Count(), Is.Not.EqualTo(0));
+        }
+
+        [Test]
+        public void ExtensionManagerTopologyShouldContainNonAbstractClasses() {
+            var topology = _manager.GetExtensionsTopology();
+
+            foreach (var type in topology) {
+                Assert.That(type.IsClass);
+                Assert.That(!type.IsAbstract);
+            }
+        }
     }
 }

src/Orchard.Tests/Mvc/Routes/StandardExtensionRouteProviderTests.cs

@@ -54,6 +54,10 @@ namespace Orchard.Tests.Mvc.Routes {
                 };
             }
 
+            public IEnumerable<Type> GetExtensionsTopology() {
+                throw new NotImplementedException();
+            }
+
             public void InstallExtension(string extensionType, HttpPostedFileBase extensionBundle) {
                 throw new NotImplementedException();
             }

src/Orchard/Environment/DefaultCompositionStrategy.cs

@@ -30,19 +30,11 @@ namespace Orchard.Environment {
         }
 
         public IEnumerable<Type> GetModuleTypes() {
-            var types = _extensionManager.ActiveExtensions().SelectMany(x => x.ExportedTypes);
-            types = types.Concat(typeof(IOrchardHost).Assembly.GetExportedTypes());
-            var nonAbstractClasses = types.Where(t => t.IsClass && !t.IsAbstract);
-            var modules = nonAbstractClasses.Where(t => typeof(IModule).IsAssignableFrom(t));
-            return modules;
+            return _extensionManager.GetExtensionsTopology().Where(t => typeof(IModule).IsAssignableFrom(t));
         }
 
         public IEnumerable<Type> GetDependencyTypes() {
-            var types = _extensionManager.ActiveExtensions().SelectMany(x => x.ExportedTypes);
-            types = types.Concat(typeof(IOrchardHost).Assembly.GetExportedTypes());
-            var nonAbstractClasses = types.Where(t => t.IsClass && !t.IsAbstract);
-            var modules = nonAbstractClasses.Where(t => typeof(IDependency).IsAssignableFrom(t));
-            return modules;
+            return _extensionManager.GetExtensionsTopology().Where(t => typeof(IDependency).IsAssignableFrom(t));
         }
 
         public IEnumerable<RecordDescriptor> GetRecordDescriptors() {

src/Orchard/Extensions/ExtensionManager.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using ICSharpCode.SharpZipLib.Zip;
+using Orchard.Environment;
 using Orchard.Extensions.Helpers;
 using Orchard.Extensions.Loaders;
 using Orchard.Localization;
@@ -96,6 +97,12 @@ namespace Orchard.Extensions {
             return _activeExtensions;
         }
 
+        public IEnumerable<Type> GetExtensionsTopology() {
+            var types = ActiveExtensions().SelectMany(x => x.ExportedTypes);
+            types = types.Concat(typeof(IOrchardHost).Assembly.GetExportedTypes());
+            return types.Where(t => t.IsClass && !t.IsAbstract);
+        }
+
         public void InstallExtension(string extensionType, HttpPostedFileBase extensionBundle) {
             if (String.IsNullOrEmpty(extensionType)) {
                 throw new ArgumentException(T("extensionType was null or empty").ToString());

src/Orchard/Extensions/IExtensionManager.cs

@@ -1,10 +1,12 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Web;
 
 namespace Orchard.Extensions {
     public interface IExtensionManager {
         IEnumerable<ExtensionDescriptor> AvailableExtensions();
         IEnumerable<ExtensionEntry> ActiveExtensions();
+        IEnumerable<Type> GetExtensionsTopology();
         void InstallExtension(string extensionType, HttpPostedFileBase extensionBundle);
         void UninstallExtension(string extensionType, string extensionName);
     }