Small changes to model/interfaces

Cropping some data
Adding an Update method, and renaming to ITopologyDescriptorManager

--HG--
branch : dev

src/Orchard.Tests/Environment/Topology/DefaultTopologyDescriptorCacheTests.cs

@@ -83,15 +83,9 @@ namespace Orchard.Tests.Environment.Topology {
 
             var descriptor = new ShellTopologyDescriptor {
                 SerialNumber = 6655321,
-                Settings = new ShellSettings {
-                    Name = "Testing",
-                    DataProvider = "s1",
-                    DataConnectionString = "s2",
-                    DataPrefix = "s3"
-                },
                 EnabledFeatures = new[] { 
-                    new TopologyFeature {ExtensionName = "f1", FeatureName = "f2"},
-                    new TopologyFeature {ExtensionName = "f3", FeatureName = "f4"},
+                    new TopologyFeature { Name = "f2"},
+                    new TopologyFeature { Name = "f4"},
                 },
                 Parameters = new[] { 
                     new TopologyParameter {Component = "p1", Name = "p2",Value = "p3"}, 
@@ -104,8 +98,8 @@ namespace Orchard.Tests.Environment.Topology {
             var result = service.Fetch("Hello");
             var resultInfo = result.ToDataString();
 
-            Assert.That(descriptorInfo, Is.StringContaining("Testing"));
-            Assert.That(resultInfo, Is.StringContaining("Testing"));
+            Assert.That(descriptorInfo, Is.StringContaining("6655321"));
+            Assert.That(resultInfo, Is.StringContaining("6655321"));
             Assert.That(descriptorInfo, Is.EqualTo(resultInfo));
 
         }

src/Orchard.Web/Core/Settings/Services/TopologyDescriptorManager.cs

@@ -6,9 +6,13 @@ using Orchard.Environment.Topology;
 using Orchard.Environment.Topology.Models;
 
 namespace Orchard.Core.Settings.Services {
-    public class TopologyDescriptorProvider : ITopologyDescriptorProvider {
+    public class TopologyDescriptorManager : ITopologyDescriptorManager {
         public ShellTopologyDescriptor GetTopologyDescriptor() {
             throw new NotImplementedException();
         }
+
+        public void UpdateTopologyDescriptor(int priorSerialNumber, IEnumerable<TopologyFeature> enabledFeatures, IEnumerable<TopologyParameter> parameters) {
+            throw new NotImplementedException();
+        }
     }
 }

src/Orchard/Environment/Topology/ITopologyDescriptorManager.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using Orchard.Environment.Topology.Models;
+
+namespace Orchard.Environment.Topology {
+    /// <summary>
+    /// Service resolved out of the shell container. Primarily used by host.
+    /// </summary>
+    public interface ITopologyDescriptorManager {
+        /// <summary>
+        /// Uses shell-specific database or other resources to return 
+        /// the current "correct" configuration. The host will use this information
+        /// to reinitialize the shell.
+        /// </summary>
+        ShellTopologyDescriptor GetTopologyDescriptor();
+
+        /// <summary>
+        /// Alters databased information to match information passed as arguments.
+        /// Prior SerialNumber used for optomistic concurrency, and an exception
+        /// should be thrown if the number in storage doesn't match what's provided.
+        /// </summary>
+        void UpdateTopologyDescriptor(
+            int priorSerialNumber,
+            IEnumerable<TopologyFeature> enabledFeatures,
+            IEnumerable<TopologyParameter> parameters);
+    }
+}

src/Orchard/Environment/Topology/ITopologyDescriptorProvider.cs

@@ -1,15 +0,0 @@
-using Orchard.Environment.Topology.Models;
-
-namespace Orchard.Environment.Topology {
-    /// <summary>
-    /// Service resolved out of the shell container. Primarily used by host.
-    /// </summary>
-    public interface ITopologyDescriptorProvider {
-        /// <summary>
-        /// Uses shell-specific database or other resources to return 
-        /// the current "correct" configuration. The host will use this information
-        /// to reinitialize the shell.
-        /// </summary>
-        ShellTopologyDescriptor GetTopologyDescriptor();
-    }
-}

src/Orchard/Environment/Topology/Models/ShellTopologyDescriptor.cs

@@ -4,14 +4,12 @@ using Orchard.Environment.Configuration;
 namespace Orchard.Environment.Topology.Models {
     public class ShellTopologyDescriptor {
         public int SerialNumber { get; set; }
-        public ShellSettings Settings { get; set; }
         public IEnumerable<TopologyFeature> EnabledFeatures { get; set; }
         public IEnumerable<TopologyParameter> Parameters { get; set; }
     }
 
     public class TopologyFeature {
-        public string ExtensionName { get; set; }
-        public string FeatureName { get; set; }
+        public string Name { get; set; }
     }
 
     public class TopologyParameter {