- Create ModuleLoader.Abstractions package

- Add unit tests for StartupContext

src/module-loader/dotnet/ModuleLoader.sln

@@ -0,0 +1,39 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.7.34031.279
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{0991543E-FA51-4D1C-8756-F6D6FD64C612}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{95B79432-5E5D-4889-8719-D610D6CCC35E}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MorganStanley.ComposeUI.ModuleLoader.Abstractions", "src\MorganStanley.ComposeUI.ModuleLoader.Abstractions\MorganStanley.ComposeUI.ModuleLoader.Abstractions.csproj", "{841D9BAC-DEE6-4E1A-A577-25B20633B110}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MorganStanley.ComposeUI.ModuleLoader.Abstractions.Tests", "tests\MorganStanley.ComposeUI.ModuleLoader.Abstractions.Tests\MorganStanley.ComposeUI.ModuleLoader.Abstractions.Tests.csproj", "{81B6905B-EE74-4387-A5EB-11271A4458A4}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{841D9BAC-DEE6-4E1A-A577-25B20633B110}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{841D9BAC-DEE6-4E1A-A577-25B20633B110}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{841D9BAC-DEE6-4E1A-A577-25B20633B110}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{841D9BAC-DEE6-4E1A-A577-25B20633B110}.Release|Any CPU.Build.0 = Release|Any CPU
+		{81B6905B-EE74-4387-A5EB-11271A4458A4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{81B6905B-EE74-4387-A5EB-11271A4458A4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{81B6905B-EE74-4387-A5EB-11271A4458A4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{81B6905B-EE74-4387-A5EB-11271A4458A4}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{841D9BAC-DEE6-4E1A-A577-25B20633B110} = {0991543E-FA51-4D1C-8756-F6D6FD64C612}
+		{81B6905B-EE74-4387-A5EB-11271A4458A4} = {95B79432-5E5D-4889-8719-D610D6CCC35E}
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {147A1BDA-77DE-4D1A-B8D5-6E8803E11F47}
+	EndGlobalSection
+EndGlobal

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/IModuleCatalog.cs

@@ -0,0 +1,20 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public interface IModuleCatalog
+{
+    IModuleManifest GetManifest(string moduleId);
+
+    IEnumerable<string> GetModuleIds();
+}

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/IModuleLoader.cs

@@ -0,0 +1,22 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public interface IModuleLoader
+{
+    void RequestStart(StartRequest startupRequest);
+
+    void RequestStop(StopRequest stopRequest);
+
+    IObservable<LifetimeEvent> LifetimeEvents { get; }
+}

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/IModuleManifest.cs

@@ -0,0 +1,28 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public interface IModuleManifest
+{
+    string Id { get; }
+
+    string Name { get; }
+
+    string StartupType { get; }
+}
+
+public interface IModuleManifest<out TDetails> : IModuleManifest
+{
+    TDetails GetDetails();
+}
+

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/IStartupAction.cs

@@ -0,0 +1,18 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public interface IStartupAction
+{
+    Task InvokeAsync(StartupContext startupContext, Func<Task> next);
+}

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/LifetimeEvent.cs

@@ -0,0 +1,81 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public abstract class LifetimeEvent
+{
+    protected LifetimeEvent(Guid instanceId)
+    {
+        InstanceId = instanceId;
+    }
+
+    public Guid InstanceId { get; }
+
+    public abstract LifetimeEventType EventType { get; }
+
+    public sealed class Starting : LifetimeEvent
+    {
+        internal Starting(Guid instanceId)
+            : base(instanceId)
+        { }
+
+        public override LifetimeEventType EventType => LifetimeEventType.Starting;
+    }
+
+    public sealed class Started : LifetimeEvent
+    {
+        internal Started(Guid instanceId)
+            : base(instanceId)
+        { }
+
+        public override LifetimeEventType EventType => LifetimeEventType.Started;
+    }
+
+    public sealed class Stopping : LifetimeEvent
+    {
+        internal Stopping(Guid instanceId)
+            : base(instanceId)
+        { }
+
+        public override LifetimeEventType EventType => LifetimeEventType.Stopping;
+    }
+
+    public sealed class Stopped : LifetimeEvent
+    {
+        internal Stopped(Guid instanceId, bool isExpected = true)
+            : base(instanceId)
+        {
+            IsExpected = isExpected;
+        }
+
+        public override LifetimeEventType EventType => LifetimeEventType.Stopped;
+
+        public bool IsExpected { get; set; }
+    }
+}
+
+
+
+
+
+
+
+
+
+public enum LifetimeEventType
+{
+    Starting,
+    Started,
+    Stopping,
+    Stopped
+}

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/MorganStanley.ComposeUI.ModuleLoader.Abstractions.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <RootNamespace>MorganStanley.ComposeUI.ModuleLoader</RootNamespace>
+  </PropertyGroup>
+
+</Project>

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/StartRequest.cs

@@ -0,0 +1,26 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public sealed class StartRequest
+{
+    public StartRequest(string moduleId)
+    {
+        ModuleId = moduleId;
+        InstanceId = Guid.NewGuid();
+    }
+
+    public Guid InstanceId { get; }
+
+    public string ModuleId { get; }
+}

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/StartupContext.cs

@@ -0,0 +1,47 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+using System.Collections.Concurrent;
+using System.Collections.Immutable;
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public sealed class StartupContext
+{
+    private readonly ConcurrentDictionary<Type, ImmutableList<object>> _properties = new();
+
+    public StartupContext(StartRequest startRequest)
+    {
+        StartRequest = startRequest;
+    }
+
+    public StartRequest StartRequest { get; }
+
+    public void AddProperty<T>(T value)
+    {
+        ArgumentNullException.ThrowIfNull(value, nameof(value));
+
+        _properties.AddOrUpdate(typeof(T),
+            (_) => ImmutableList<object>.Empty.Add(value),
+            (_, list) => list.Add(value));
+    }
+
+    public IEnumerable<T> GetProperties<T>()
+    {
+        if (!_properties.TryGetValue(typeof(T), out var list))
+        {
+            return Enumerable.Empty<T>();
+        }
+
+        return list.OfType<T>();
+    }
+}

src/module-loader/dotnet/src/MorganStanley.ComposeUI.ModuleLoader.Abstractions/StopRequest.cs

@@ -0,0 +1,18 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+namespace MorganStanley.ComposeUI.ModuleLoader;
+
+public struct StopRequest
+{
+    public Guid InstanceId;
+}

src/module-loader/dotnet/tests/MorganStanley.ComposeUI.ModuleLoader.Abstractions.Tests/GlobalUsings.cs

@@ -0,0 +1,13 @@
+// Morgan Stanley makes this available to you under the Apache License,
+// Version 2.0 (the "License"). You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0.
+// 
+// See the NOTICE file distributed with this work for additional information
+// regarding copyright ownership. Unless required by applicable law or agreed
+// to in writing, software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+// or implied. See the License for the specific language governing permissions
+// and limitations under the License.
+
+global using Xunit;

src/module-loader/dotnet/tests/MorganStanley.ComposeUI.ModuleLoader.Abstractions.Tests/MorganStanley.ComposeUI.ModuleLoader.Abstractions.Tests.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>net6.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+
+		<IsPackable>false</IsPackable>
+		<IsTestProject>true</IsTestProject>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Microsoft.NET.Test.Sdk" />
+		<PackageReference Include="xunit" />
+		<PackageReference Include="xunit.runner.visualstudio">
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+			<PrivateAssets>all</PrivateAssets>
+		</PackageReference>
+		<PackageReference Include="coverlet.collector">
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+			<PrivateAssets>all</PrivateAssets>
+		</PackageReference>
+	</ItemGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\..\src\MorganStanley.ComposeUI.ModuleLoader.Abstractions\MorganStanley.ComposeUI.ModuleLoader.Abstractions.csproj" />
+	</ItemGroup>
+
+</Project>