nuclex-shared-dotnet/Nuclex.Support
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added prototype factory - a factory which created instances by cloning a prototype instance; redesigned the service manager to query types from an ITypeLister interface instead of tightly coupling it with the PluginRepository class; added type listers that list all assemblies in an app domain, in a PluginRepository and in a predefined list; renamed the IProgressTrackingService to IProgressCollectingService to make it perfectly clear which service is for which purpose; added Instancing.None to disallow the service manager from providing a certain contract; added CPL headers where they were missing

Browse Source 
git-svn-id: file:///srv/devel/repo-conversion/nusu@140 d2e56fa2-650e-0410-a79f-9358c0239efd
This commit is contained in:
Markus Ewald 2009-05-27 19:55:06 +00:00
parent 4e2beb71b8
commit c9d9810c28
21 changed files with 1516 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
Nuclex.Support (Xbox 360).csproj
View File

@ -118,11 +118,31 @@
<Compile Include="Source\Collections\ReverseComparer.Test.cs">
<DependentUpon>ReverseComparer.cs</DependentUpon>
</Compile>
<Compile Include="Source\Plugins\PrototypeFactory.cs" />
<Compile Include="Source\Plugins\PrototypeFactory.Test.cs">
<DependentUpon>PrototypeFactory.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\AppDomainTypeLister.cs" />
<Compile Include="Source\Services\AppDomainTypeLister.Test.cs">
<DependentUpon>AppDomainTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\AssemblyTypeLister.cs" />
<Compile Include="Source\Services\AssemblyTypeLister.Test.cs">
<DependentUpon>AssemblyTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\Instancing.cs" />
<Compile Include="Source\Services\ITypeLister.cs" />
<Compile Include="Source\Services\PredefinedTypeLister.Test.cs">
<DependentUpon>PredefinedTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\ProgressTracking\IProgressPublishingService.cs" />
<Compile Include="Source\Services\ProgressTracking\IProgressTrackingService.cs" />
<Compile Include="Source\Services\ProgressTracking\IProgressCollectingService.cs" />
<Compile Include="Source\Services\ProgressTracking\ITrackedProcess.cs" />
<Compile Include="Source\Services\ProgressTracking\ProgressTrackingComponent.cs" />
<Compile Include="Source\Services\RepositoryTypeLister.cs" />
<Compile Include="Source\Services\RepositoryTypeLister.Test.cs">
<DependentUpon>RepositoryTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\ServiceManager.cs" />
<Compile Include="Source\Services\ServiceManager.For.cs">
<DependentUpon>ServiceManager.cs</DependentUpon>
@ -233,6 +253,10 @@
<Compile Include="Source\Scheduling\ThreadOperation.Test.cs">
<DependentUpon>ThreadOperation.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\ServiceManager.Test.cs">
<DependentUpon>ServiceManager.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\PredefinedTypeLister.cs" />
<Compile Include="Source\Shared.cs" />
<Compile Include="Source\Shared.Test.cs">
<DependentUpon>Shared.cs</DependentUpon>

26
Nuclex.Support.csproj
View File

@ -100,11 +100,31 @@
<Compile Include="Source\Collections\ReverseComparer.Test.cs">
<DependentUpon>ReverseComparer.cs</DependentUpon>
</Compile>
<Compile Include="Source\Plugins\PrototypeFactory.cs" />
<Compile Include="Source\Plugins\PrototypeFactory.Test.cs">
<DependentUpon>PrototypeFactory.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\AppDomainTypeLister.cs" />
<Compile Include="Source\Services\AppDomainTypeLister.Test.cs">
<DependentUpon>AppDomainTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\AssemblyTypeLister.cs" />
<Compile Include="Source\Services\AssemblyTypeLister.Test.cs">
<DependentUpon>AssemblyTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\Instancing.cs" />
<Compile Include="Source\Services\ITypeLister.cs" />
<Compile Include="Source\Services\PredefinedTypeLister.Test.cs">
<DependentUpon>PredefinedTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\ProgressTracking\IProgressPublishingService.cs" />
<Compile Include="Source\Services\ProgressTracking\IProgressTrackingService.cs" />
<Compile Include="Source\Services\ProgressTracking\IProgressCollectingService.cs" />
<Compile Include="Source\Services\ProgressTracking\ITrackedProcess.cs" />
<Compile Include="Source\Services\ProgressTracking\ProgressTrackingComponent.cs" />
<Compile Include="Source\Services\RepositoryTypeLister.cs" />
<Compile Include="Source\Services\RepositoryTypeLister.Test.cs">
<DependentUpon>RepositoryTypeLister.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\ServiceManager.cs" />
<Compile Include="Source\Services\ServiceManager.For.cs">
<DependentUpon>ServiceManager.cs</DependentUpon>
@ -215,6 +235,10 @@
<Compile Include="Source\Scheduling\ThreadOperation.Test.cs">
<DependentUpon>ThreadOperation.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\ServiceManager.Test.cs">
<DependentUpon>ServiceManager.cs</DependentUpon>
</Compile>
<Compile Include="Source\Services\PredefinedTypeLister.cs" />
<Compile Include="Source\Shared.cs" />
<Compile Include="Source\Shared.Test.cs">
<DependentUpon>Shared.cs</DependentUpon>

141
Source/Plugins/PrototypeFactory.Test.cs Normal file
View File

@ -0,0 +1,141 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.IO;
using NUnit.Framework;
namespace Nuclex.Support.Plugins {
/// <summary>Unit Test for the prototype-based factory class</summary>
[TestFixture]
public class PrototypeFactoryTest {
#region interface IProduct
/// <summary>Interface used for the product in the unit test</summary>
private interface IProduct {
/// <summary>Some value associated with the product</summary>
int Value { get; }
}
#endregion // interface IProduct
#region class ConcretePrototype
/// <summary>
/// Class derived from the abstract base to serve as concrete product for
/// testing the factory employer
/// </summary>
private class ConcretePrototype : IProduct, ICloneable, IDisposable {
/// <summary>Initializes a new instance of the prototype product</summary>
/// <param name="value">Value that will be associated with this instance</param>
public ConcretePrototype(int value) {
this.value = value;
}
/// <summary>Immediately releases all resources owned by the instance</summary>
public void Dispose() {
this.disposed = true;
}
/// <summary>Value the product has been associated with</summary>
public int Value { get { return this.value; } }
/// <summary>Whether the prototype instance has been disposed</summary>
public bool IsDisposed {
get { return this.disposed; }
}
/// <summary>Creates an identical copy of the instance</summary>
/// <returns>An identical copy of the instance</returns>
object ICloneable.Clone() {
return new ConcretePrototype(this.value);
}
/// <summary>Value associated with the product</summary>
private int value;
/// <summary>Whether the instance has been disposed</summary>
private bool disposed;
}
#endregion // class ConcretePrototype
/// <summary>
/// Tests whether the prototype-based factory behaves correctly by creating
/// new instances of its product using clones of its assigned prototype.
/// </summary>
[Test]
public void TestGenericInstanceCreation() {
ConcretePrototype template = new ConcretePrototype(42);
IAbstractFactory<IProduct> factory = new PrototypeFactory<
IProduct, ConcretePrototype
>(template);
IProduct factoryCreatedProduct = factory.CreateInstance();
Assert.AreEqual(template.Value, factoryCreatedProduct.Value);
}
/// <summary>
/// Tests whether the prototype-based factory behaves correctly by creating
/// new instances of its product using clones of its assigned prototype.
/// </summary>
[Test]
public void TestInstanceCreation() {
ConcretePrototype template = new ConcretePrototype(42);
IAbstractFactory factory = new PrototypeFactory<
IProduct, ConcretePrototype
>(template);
IProduct factoryCreatedProduct = (IProduct)factory.CreateInstance();
Assert.AreEqual(template.Value, factoryCreatedProduct.Value);
}
/// <summary>
/// Tests whether the prototype is disposed if it implements the IDisposable
/// interface and the factory is explicitely disposed.
/// </summary>
[Test]
public void TestPrototypeDisposal() {
ConcretePrototype template = new ConcretePrototype(42);
PrototypeFactory<IProduct, ConcretePrototype> factory = new PrototypeFactory<
IProduct, ConcretePrototype
>(template);
Assert.IsFalse(template.IsDisposed);
factory.Dispose();
Assert.IsTrue(template.IsDisposed);
}
}
} // namespace Nuclex.Support.Plugins
#endif // UNITTEST

54
Source/Plugins/PrototypeFactory.cs Normal file
View File

@ -0,0 +1,54 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Nuclex.Support.Plugins {
/// <summary>Factory that creates instances by cloning a prototype</summary>
/// <typeparam name="ProductType">Type of product created by the factory</typeparam>
/// <typeparam name="ConcreteType">Type of the prototype that will be cloned</typeparam>
public class PrototypeFactory<ProductType, ConcreteType> :
IAbstractFactory<ProductType>, IAbstractFactory, IDisposable
where ProductType : class
where ConcreteType : class, ICloneable {
/// <summary>Initializes a new prototype based factory</summary>
/// <param name="prototype">Prototype instance that will be cloned</param>
public PrototypeFactory(ConcreteType prototype) {
this.prototype = prototype;
}
/// <summary>
/// Creates a new instance of the type to which the factory is specialized
/// </summary>
/// <returns>The newly created instance</returns>
public ProductType CreateInstance() {
return (ProductType)this.prototype.Clone();
}
/// <summary>
/// Creates a new instance of the type to which the factory is specialized
/// </summary>
/// <returns>The newly created instance</returns>
object IAbstractFactory.CreateInstance() {
return this.prototype.Clone();
}
/// <summary>Immediately releases all resources owned by the instance</summary>
public void Dispose() {
if(this.prototype != null) {
IDisposable disposablePrototype = this.prototype as IDisposable;
if(disposablePrototype != null) {
disposablePrototype.Dispose();
}
this.prototype = null;
}
}
/// <summary>The prototype object</summary>
private ConcreteType prototype;
}
} // namespace Nuclex.Support.Plugins

73
Source/Services/AppDomainTypeLister.Test.cs Normal file
View File

@ -0,0 +1,73 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.Collections.Generic;
using System.Reflection;
using NUnit.Framework;
namespace Nuclex.Support.Services {
/// <summary>Unit Test for the cached app domain type lister</summary>
[TestFixture]
public class AppDomainTypeListerTest {
/// <summary>
/// Verifies that the assembly type list is generated correctly for
/// the default constructor (using the calling app domain)
/// </summary>
[Test]
public void TestDefaultConstructur() {
AppDomainTypeLister testLister = new AppDomainTypeLister();
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(AppDomainTypeListerTest)).And.Member(typeof(Assembly))
);
}
/// <summary>
/// Verifies that the assembly type list is generated correctly for
/// the full constructor
/// </summary>
[Test]
public void TestFullConstructur() {
AppDomain newAppDomain = AppDomain.CreateDomain("AppDomainTypeListerTest.Domain");
try {
AppDomainTypeLister testLister = new AppDomainTypeLister(newAppDomain);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(Assembly)).And.No.Member(typeof(AppDomainTypeListerTest))
);
}
finally {
AppDomain.Unload(newAppDomain);
}
}
}
} // namespace Nuclex.Support.Services
#endif // UNITTEST

59
Source/Services/AppDomainTypeLister.cs Normal file
View File

@ -0,0 +1,59 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Reflection;
namespace Nuclex.Support.Services {
#if !XBOX360
/// <summary>Lists the types of all assemblies in an application domain</summary>
public class AppDomainTypeLister : AssemblyTypeLister {
/// <summary>
/// Initializes a new application domain type lister using the application domain
/// of the calling method
/// </summary>
public AppDomainTypeLister() : this(AppDomain.CurrentDomain) { }
/// <summary>Initializes a new application domain type lister</summary>
/// <param name="appDomain">Application domain whose types will be listed</param>
public AppDomainTypeLister(AppDomain appDomain) {
this.appDomain = appDomain;
}
/// <summary>
/// Obtains an enumerable list of all assemblies in the application domain
/// </summary>
/// <returns>An enumerable list of the assemblies in the application domain</returns>
protected override IEnumerable<Assembly> GetAssemblies() {
return this.appDomain.GetAssemblies();
}
/// <summary>Application domain whose types the lister works on</summary>
private AppDomain appDomain;
}
#endif // !XBOX360
} // namespace Nuclex.Support.Services

138
Source/Services/AssemblyTypeLister.Test.cs Normal file
View File

@ -0,0 +1,138 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.Collections.Generic;
using System.Reflection;
using NUnit.Framework;
namespace Nuclex.Support.Services {
/// <summary>Unit Test for the cached assembly type lister</summary>
[TestFixture]
public class AssemblyTypeListerTest {
#region class TestAssemblyTypeLister
/// <summary>Test implementation of a cached assembly type lister</summary>
private class TestAssemblyTypeLister : AssemblyTypeLister {
/// <summary>Initializes a new test assembly type lister</summary>
/// <param name="assemblies">Assemblies whose types will be listed</param>
public TestAssemblyTypeLister(params Assembly[] assemblies) {
ReplaceAssemblyList(assemblies);
}
/// <summary>Replaces the list of assemblies whose types to list</summary>
/// <param name="assemblies">Assemblies whose types will be listed</param>
public void ReplaceAssemblyList(params Assembly[] assemblies) {
this.assemblies = assemblies;
}
/// <summary>Obtains a list of any assemblies whose types should be listed</summary>
/// <returns>A list of any assemblies whose types to list</returns>
protected override IEnumerable<Assembly> GetAssemblies() {
return this.assemblies;
}
/// <summary>Assemblies whose types the test assembly type lister lists</summary>
private Assembly[] assemblies;
}
#endregion // class TestAssemblyTypeLister
/// <summary>
/// Verifies that the assembly type list is generated correctly
/// </summary>
[Test]
public void TestAssemblyListGeneration() {
TestAssemblyTypeLister testLister = new TestAssemblyTypeLister(
typeof(AssemblyTypeListerTest).Assembly
);
Assert.That(
testLister.GetTypes(), Has.Member(typeof(AssemblyTypeListerTest))
);
}
/// <summary>
/// Verifies that the assembly type list is updated when list of assemblies
/// changes inbetween calls
/// </summary>
[Test]
public void TestAssemblyListReplacement() {
TestAssemblyTypeLister testLister = new TestAssemblyTypeLister(
typeof(Assembly).Assembly,
typeof(TestAttribute).Assembly
);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(TestAttribute)).And.Not.Member(typeof(AssemblyTypeListerTest))
);
testLister.ReplaceAssemblyList(
typeof(Assembly).Assembly,
typeof(AssemblyTypeListerTest).Assembly
);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(AssemblyTypeListerTest)).And.Not.Member(typeof(TestAttribute))
);
}
/// <summary>
/// Verifies that the assembly type list is updated when an assembly is removed
/// from the list inbetween calls
/// </summary>
[Test]
public void TestAssemblyListRemoval() {
TestAssemblyTypeLister testLister = new TestAssemblyTypeLister(
typeof(Assembly).Assembly,
typeof(TestAttribute).Assembly,
typeof(AssemblyTypeListerTest).Assembly
);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(TestAttribute)).And.Member(typeof(AssemblyTypeListerTest))
);
testLister.ReplaceAssemblyList(
typeof(Assembly).Assembly,
typeof(AssemblyTypeListerTest).Assembly
);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(AssemblyTypeListerTest)).And.Not.Member(typeof(TestAttribute))
);
}
}
} // namespace Nuclex.Support.Services
#endif // UNITTEST

143
Source/Services/AssemblyTypeLister.cs Normal file
View File

@ -0,0 +1,143 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Reflection;
namespace Nuclex.Support.Services {
/// <summary>Lists all types in a changing set of assemblies</summary>
public abstract class AssemblyTypeLister : ITypeLister {
#region class AssemblyTypes
/// <summary>Caches the list of types types for an assembly</summary>
private class AssemblyTypes {
/// <summary>Initializes a new cached assembly types list</summary>
/// <param name="assembly">Assembly the types are found in</param>
/// <param name="types">Types defined in the assembly</param>
public AssemblyTypes(Assembly assembly, Type[] types) {
this.Assembly = assembly;
this.Types = types;
}
/// <summary>Assembly the types are found in</summary>
public Assembly Assembly;
/// <summary>Types defined in the assembly</summary>
public Type[] Types;
}
#endregion // class AssemblyTypes
/// <summary>Initializes a new assembly type lister</summary>
public AssemblyTypeLister() {
this.assemblyTypes = new LinkedList<AssemblyTypes>();
}
/// <summary>Enumerates all types in the lister's assembly set</summary>
/// <returns>An enumerator over all types in the lister's assembly set</returns>
public IEnumerable<Type> GetTypes() {
// Make sure the assembly list is filled and up-to-date
if(this.assemblyTypes.Count == 0) {
enlistAssembliesFirstTime();
} else {
updateAssemblyList();
}
// Iterate over all types in all assemblies
LinkedListNode<AssemblyTypes> node = this.assemblyTypes.First;
while(node != null) {
Type[] types = node.Value.Types;
for(int index = 0; index < types.Length; ++index) {
yield return types[index];
}
node = node.Next;
}
}
/// <summary>Called when the assemblies set is queried for the first time</summary>
private void enlistAssembliesFirstTime() {
foreach(Assembly assembly in GetAssemblies()) {
this.assemblyTypes.AddLast(new AssemblyTypes(assembly, assembly.GetTypes()));
}
}
/// <summary>Called to update the assembly list if it has changed</summary>
private void updateAssemblyList() {
LinkedListNode<AssemblyTypes> node = this.assemblyTypes.First;
foreach(Assembly assembly in GetAssemblies()) {
// If we reached the end of the cache, this automatically becomes a new entry
if(node == null) {
this.assemblyTypes.AddLast(new AssemblyTypes(assembly, assembly.GetTypes()));
} else { // Otherwise, figure out whether the assembly list has changed
// Try to locate the cached entry for this assembly. If we have to skip entries,
// we know that an assembly might have been removed from the set.
LinkedListNode<AssemblyTypes> existingNode = node;
while(existingNode.Value.Assembly != assembly) {
existingNode = existingNode.Next;
if(existingNode == null) {
break;
}
}
// If this assembly wasn't found in the cache, add it in the same order
// it was returned by the enumerator.
if(existingNode == null) {
this.assemblyTypes.AddBefore(
node, new AssemblyTypes(assembly, assembly.GetTypes())
);
} else if(existingNode != node) { // Cached assemblies were skipped, reorder
this.assemblyTypes.Remove(existingNode);
this.assemblyTypes.AddBefore(node, existingNode);
} else { // Everything as expected
node = node.Next;
}
}
}
// Any nodes behind the last checked node contain cached type lists for assemblies
// that are no longer in the set, so these will be removed.
while(node != null) {
LinkedListNode<AssemblyTypes> nextNode = node.Next;
this.assemblyTypes.Remove(node);
node = nextNode;
}
}
/// <summary>Obtains a list of any assemblies whose types should be listed</summary>
/// <returns>A list of any assemblies whose types to list</returns>
protected abstract IEnumerable<Assembly> GetAssemblies();
/// <summary>Cached assembly type lists</summary>
private LinkedList<AssemblyTypes> assemblyTypes;
}
} // namespace Nuclex.Support.Services

42
Source/Services/ITypeLister.cs Normal file
View File

@ -0,0 +1,42 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Reflection;
using Nuclex.Support.Plugins;
namespace Nuclex.Support.Services {
/// <summary>
/// Provides a type list the service manager uses to locate components
/// </summary>
public interface ITypeLister {
/// <summary>
/// Returns an enumerable list of types that will be checked by the service manager
/// </summary>
/// <returns>An enumerable list of types for the service manager</returns>
IEnumerable<Type> GetTypes();
}
} // namespace Nuclex.Support.Services

31
Source/Services/Instancing.cs
View File

@ -1,4 +1,24 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using Nuclex.Support.Plugins;
@ -7,12 +27,19 @@ namespace Nuclex.Support.Services {
/// <summary>Modes in which services can be instantiated</summary>
public enum Instancing {
/// <summary>Disallow any service from being created for a contract</summary>
Never,
/// <summary>There will only be one service in the whole process</summary>
Singleton,
/// <summary>Each thread will be assigned its own service</summary>
InstancePerThread,
/// <summary>A new service will be created each time it is queried for</summary>
Factory
}
} // namespace Nuclex.Support.DependencyInjection
} // namespace Nuclex.Support.Services

103
Source/Services/PredefinedTypeLister.Test.cs Normal file
View File

@ -0,0 +1,103 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.Collections.Generic;
using System.Reflection;
using NUnit.Framework;
namespace Nuclex.Support.Services {
/// <summary>Unit Test for the predefined type lister</summary>
[TestFixture]
public class PredefinedTypeListerTest {
/// <summary>
/// Verifies that the type lister correctly takes over a list of types
/// supplied manually to the constructor
/// </summary>
[Test]
public void TestPredefinedTypesFromParams() {
ITypeLister testLister = new PredefinedTypeLister(
typeof(PredefinedTypeListerTest), typeof(TestAttribute)
);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(PredefinedTypeListerTest)).And.Member(typeof(TestAttribute))
);
}
/// <summary>
/// Verifies that the type lister correctly takes over a list of types
/// supplied as an enumerable list to the constructor
/// </summary>
[Test]
public void TestPredefinedTypesFromEnumerable() {
IEnumerable<Type> types = typeof(PredefinedTypeListerTest).Assembly.GetTypes();
ITypeLister testLister = new PredefinedTypeLister(types);
Assert.That(
testLister.GetTypes(), Has.Member(typeof(PredefinedTypeListerTest))
);
}
/// <summary>
/// Verifies that types can be removed from the type lister
/// </summary>
[Test]
public void TestRemoveTypesFromLister() {
PredefinedTypeLister testLister = new PredefinedTypeLister(
typeof(PredefinedTypeListerTest).Assembly.GetTypes()
);
Assert.That(
testLister.GetTypes(), Has.Member(typeof(PredefinedTypeListerTest))
);
testLister.Types.Remove(typeof(PredefinedTypeListerTest));
Assert.That(
testLister.GetTypes(), Has.No.Member(typeof(PredefinedTypeListerTest))
);
}
/// <summary>
/// Verifies that types can be added to the type lister
/// </summary>
[Test]
public void TestAddTypesToLister() {
PredefinedTypeLister testLister = new PredefinedTypeLister();
Assert.That(
testLister.GetTypes(), Has.No.Member(typeof(TestAttribute))
);
testLister.Types.Add(typeof(TestAttribute));
Assert.That(
testLister.GetTypes(), Has.Member(typeof(TestAttribute))
);
}
}
} // namespace Nuclex.Support.Services
#endif // UNITTEST

60
Source/Services/PredefinedTypeLister.cs Normal file
View File

@ -0,0 +1,60 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace Nuclex.Support.Services {
/// <summary>Type lister that returns a predefined list of types</summary>
public class PredefinedTypeLister : ITypeLister {
/// <summary>Initializes a new predefined type lister</summary>
/// <param name="types">Types the predefined type lister will list</param>
public PredefinedTypeLister(params Type[] types) {
this.types = new List<Type>(types);
}
/// <summary>Initializes a new predefined type lister</summary>
/// <param name="types">Types the predefined type lister will list</param>
public PredefinedTypeLister(IEnumerable<Type> types) {
this.types = new List<Type>(types);
}
/// <summary>
/// Returns an enumerable list of types that will be checked by the service manager
/// </summary>
/// <returns>An enumerable list of types for the service manager</returns>
public IEnumerable<Type> GetTypes() {
return this.types;
}
/// <summary>Predefined list of types the lister will list</summary>
public List<Type> Types {
get { return this.types; }
}
/// <summary>The predefined list of types</summary>
private List<Type> types;
}
} // namespace Nuclex.Support.Services

26
Source/Services/ProgressTracking/IProgressTrackingService.cs → Source/Services/ProgressTracking/IProgressCollectingService.cs
View File

@ -1,4 +1,24 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using Nuclex.Support.Tracking;
@ -6,7 +26,7 @@ using Nuclex.Support.Tracking;
namespace Nuclex.Support.Services.ProgressTracking {
/// <summary>Allows application-wide tracking of progress</summary>
interface IProgressTrackingService {
interface IProgressCollectingService {
/// <summary>Tracks the progress of the specified transaction</summary>
/// <param name="transaction">
@ -62,7 +82,7 @@ namespace Nuclex.Support.Services.ProgressTracking {
/// at all, dispite adding it to the progress tracking service).
/// </remarks>
void Untrack(Transaction transaction);
}
} // namespace Nuclex.Support.DependencyInjection.ProgressTracking

22
Source/Services/ProgressTracking/IProgressPublishingService.cs
View File

@ -1,4 +1,24 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using Nuclex.Support.Tracking;

22
Source/Services/ProgressTracking/ITrackedProcess.cs
View File

@ -1,4 +1,24 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using Nuclex.Support.Tracking;

24
Source/Services/ProgressTracking/ProgressTrackingComponent.cs
View File

@ -1,4 +1,24 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using Nuclex.Support.Tracking;
@ -8,7 +28,7 @@ namespace Nuclex.Support.Services.ProgressTracking {
#if false
/// <summary>Tracks the progress of running background processes</summary>
public class ProgressTrackingComponent :
IProgressTrackingService,
IProgressCollectingService,
IProgressPublishingService {
/// <summary>Fired when the overall progress changes</summary>

63
Source/Services/RepositoryTypeLister.Test.cs Normal file
View File

@ -0,0 +1,63 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.Collections.Generic;
using System.Reflection;
using NUnit.Framework;
namespace Nuclex.Support.Services {
/// <summary>Unit Test for the cached assembly repository type lister</summary>
[TestFixture]
public class RepositoryTypeListerTest {
/// <summary>
/// Tests whether the repository lister can cope with an empty repository
/// </summary>
[Test]
public void TestEmptyLister() {
RepositoryTypeLister testLister = new RepositoryTypeLister();
Assert.That(testLister.GetTypes(), Is.Empty);
}
/// <summary>
/// Tests whether the repository lister notices an updated repository
/// </summary>
[Test]
public void TestLateAdd() {
RepositoryTypeLister testLister = new RepositoryTypeLister();
testLister.Repository.AddAssembly(typeof(RepositoryTypeListerTest).Assembly);
Assert.That(
testLister.GetTypes(),
Has.Member(typeof(RepositoryTypeListerTest))
);
}
}
} // namespace Nuclex.Support.Services
#endif // UNITTEST

72
Source/Services/RepositoryTypeLister.cs Normal file
View File

@ -0,0 +1,72 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Reflection;
using Nuclex.Support.Plugins;
namespace Nuclex.Support.Services {
/// <summary>
/// Lists the types of all assemblies contained in an assembly repository
/// </summary>
public class RepositoryTypeLister : AssemblyTypeLister {
/// <summary>
/// Initializes a new repository type lister using a new repository
/// </summary>
public RepositoryTypeLister() : this(new PluginRepository()) { }
/// <summary>
/// Initializes a new repository type lister using an existing repository
/// </summary>
/// <param name="repository">
/// Repository containing the assemblies whose types will be listed
/// </param>
public RepositoryTypeLister(PluginRepository repository) {
this.repository = repository;
}
/// <summary>
/// Returns an enumerable list of the assemblies in the repository
/// </summary>
/// <returns>An enumerable list of the assemblies in the repository</returns>
protected override IEnumerable<Assembly> GetAssemblies() {
return this.repository.LoadedAssemblies;
}
/// <summary>
/// The assembly repository containing the assemblies whose types the lister
/// operates on.
/// </summary>
public PluginRepository Repository {
get { return this.repository; }
}
/// <summary>
/// Repository containing the assemblies with the type lister's types
/// </summary>
private PluginRepository repository;
}
} // namespace Nuclex.Support.Services

26
Source/Services/ServiceManager.For.cs
View File

@ -1,4 +1,24 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
@ -9,7 +29,6 @@ namespace Nuclex.Support.Services {
#region class ForContext
// TODO: Rename to "On" to avoid confusion with concept of for loop?
/// <summary>Manages the context of the "For" modifier</summary>
public class ForContext {
@ -52,7 +71,6 @@ namespace Nuclex.Support.Services {
#region class ForContext<>
// TODO: Rename to "On" to avoid confusion with concept of for loop?
/// <summary>Manages the context of the "For" modifier</summary>
public class ForContext<ContractType> : ForContext {
@ -93,4 +111,4 @@ namespace Nuclex.Support.Services {
}
#endif
} // namespace Nuclex.Support.DependencyInjection
} // namespace Nuclex.Support.Services

191
Source/Services/ServiceManager.Test.cs Normal file
View File

@ -0,0 +1,191 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.IO;
#if UNITTEST
using NUnit.Framework;
namespace Nuclex.Support.Services {
/// <summary>Unit Test for the service manager class</summary>
[TestFixture]
public class ServiceManagerTest {
#region interface IHelloContract
/// <summary>A simple contract interface used for testing</summary>
public interface IHelloContract { }
#endregion // interface IHelloContract
#region interface IWorldContract
/// <summary>Another simple contract interface used for testing</summary>
public interface IWorldContract { }
#endregion // interface IWorldContract
#region interface IHaveNoImplementation
/// <summary>A contract interface that is not implementated anywhere</summary>
public interface IHaveNoImplementation { }
#endregion // interface IHaveNoImplementation
#region class HelloComponent
/// <summary>Test component that implements the hello contract</summary>
public class HelloComponent : IHelloContract { }
#endregion // class HelloComponent
#region class WorldComponent
/// <summary>
/// Test component that implements the world contract and requires
/// an implementation of the hello contract
/// </summary>
public class WorldComponent : IWorldContract, IHelloContract {
/// <summary>Initializes a new world component</summary>
/// <param name="helloContracts">
/// Array of hello contract implementations that will be used
/// </param>
public WorldComponent(IHelloContract[] helloContracts) { }
}
#endregion // class WorldComponent
#region class IncompleteComponent
/// <summary>
/// Test component that requires an implementation of a contract that has
/// no implementation available
/// </summary>
public class IncompleteComponent : IWorldContract {
/// <summary>Initializes the component</summary>
/// <param name="noImplementation">
/// Implementation of the unimplemented interface (:P) to use
/// </param>
public IncompleteComponent(IHaveNoImplementation noImplementation) { }
}
#endregion // class IncompleteComponent
#region class NeedHello
/// <summary>Component that needs an implementation of the hello contract</summary>
public class NeedHello : IWorldContract {
/// <summary>Initializes the component</summary>
/// <param name="helloContract">
/// Implementation of the hello contract that will be used
/// </param>
public NeedHello(IHelloContract helloContract) { }
}
#endregion // class NeedHello
#region class NeedWorld
/// <summary>Component that needs an implementation of the world contract</summary>
public class NeedWorld : IHelloContract {
/// <summary>Initializes the component</summary>
/// <param name="worldContract">
/// Implementation of the world contract that will be used
/// </param>
public NeedWorld(IWorldContract worldContract) { }
}
#endregion // class NeedWorld
#if false
/// <summary>
/// Tests whether the GetComponents() method behaves correctly if it is used
/// without any assemblies loaded
/// </summary>
[Test]
public void TestGetComponentsWithoutAssembly() {
ServiceManager serviceManager = new ServiceManager();
Assert.That(serviceManager.GetComponents<IDisposable>(), Is.Empty);
}
/// <summary>
/// Tests whether the GetComponents() method can locate a simple component
/// </summary>
[Test]
public void TestGetComponents() {
ServiceManager serviceManager = new ServiceManager();
serviceManager.Repository.AddAssembly(typeof(ServiceManagerTest).Assembly);
Assert.That(
serviceManager.GetComponents<IHelloContract>(),
Has.Member(typeof(HelloComponent)).And.Member(typeof(WorldComponent))
);
}
/// <summary>
/// Tests whether the GetComponents() method correctly determines which
/// components can have their dependencies completely provided.
/// </summary>
[Test]
public void TestFilteredGetComponents() {
ServiceManager serviceManager = new ServiceManager();
serviceManager.Repository.AddAssembly(typeof(ServiceManagerTest).Assembly);
Assert.That(
serviceManager.GetComponents<IWorldContract>(false),
Has.Member(typeof(WorldComponent)).And.Member(typeof(IncompleteComponent))
);
Assert.That(
serviceManager.GetComponents<IWorldContract>(true),
Has.Member(typeof(WorldComponent)).And.No.Member(typeof(IncompleteComponent))
);
}
/// <summary>
/// Tests whether the GetComponents() method can cope with two components
/// that have a circular dependency through their services.
/// </summary>
[Test]
public void TestCircularDependency() {
}
/// <summary>
/// Verifies that the right exception is thrown if the non-generic GetService()
/// is used on a value type
/// </summary>
[Test]
public void TestGetComponentOnValueType() {
ServiceManager serviceManager = new ServiceManager();
serviceManager.Repository.AddAssembly(typeof(int).Assembly);
Assert.Throws<ArgumentException>(
delegate() { serviceManager.GetService(typeof(int)); }
);
}
#endif
}
} // namespace Nuclex.Support.Services
#endif // UNITTEST

222
Source/Services/ServiceManager.cs
View File

@ -1,12 +1,40 @@
using System;
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Reflection;
using System.Threading;
using Nuclex.Support.Plugins;
namespace Nuclex.Support.Services {
#if false
// Allow Dependency on Container
// public Foo(IServiceProvider serviceProvider)
// public Foo(IserviceLocator serviceLocator)
// public Foo(Container container)
/// <summary>
/// Inversion of Control container that manages the services of an application
/// </summary>
@ -56,9 +84,110 @@ namespace Nuclex.Support.Services {
/// </remarks>
public partial class ServiceManager : IServiceProvider {
#region class Contract
/// <summary>Stores the settings for an individual contract</summary>
private class Contract {
/// <summary>
/// Factory by which instances of the contract implementation can be created
/// </summary>
public IAbstractFactory Factory;
/// <summary>How instances of the implementation are to be managed</summary>
public Instancing Instancing;
/// <summary>Single global instance of the contract implementation</summary>
/// <remarks>
/// Used only if <paramref name="Instancing" /> is set to Singleton
/// </remarks>
public object SingletonInstance;
/// <summary>Thread-local instance of the contract implementation</summary>
/// <remarks>
/// Used only if <paramref name="Instancing" />is set to InstancePerThread
/// </remarks>
public object ThreadLocalInstance {
get {
initializeThreadLocalData();
return Thread.GetData(this.threadLocalDataSlot);
}
set {
initializeThreadLocalData();
Thread.SetData(this.threadLocalDataSlot, value);
}
}
/// <summary>Initializes the thread-local data slot</summary>
private void initializeThreadLocalData() {
if(this.threadLocalDataSlot == null) {
lock(this) {
if(this.threadLocalDataSlot == null) {
this.threadLocalDataSlot = Thread.AllocateDataSlot();
}
}
}
}
/// <summary>Arguments to be passed to the component constructor</summary>
private Dictionary<string, object> arguments;
/// <summary>Data slot for thread local storage</summary>
/// <remarks>
/// We're using an explicit data slot because the ThreadStaticAttribute class
/// can only be used on static fields and also because this class is not
/// supported by the .NET Compact Framework.
/// </remarks>
private volatile LocalDataStoreSlot threadLocalDataSlot;
}
#endregion // class Contract
#if !XBOX360
/// <summary>Initializes a new service manager</summary>
public ServiceManager() {
this.pluginRepository = new PluginRepository();
/// <remarks>
/// This overload will automatically use a type lister that causes all types
/// in all loaded assemblies of the calling app domain to be considered
/// by the service manager for obtaining contract implementations.
/// </remarks>
public ServiceManager() : this(new AppDomainTypeLister()) { }
#endif // !XBOX360
/// <summary>Initializes a new service manager</summary>
/// <param name="typeLister">
/// Type lister providing the types considered by the service manager for
/// obtaining contract implementations.
/// </param>
public ServiceManager(ITypeLister typeLister) {
this.typeLister = typeLister;
resolveContractMethod = GetType().GetMethod(
"resolve", BindingFlags.NonPublic | BindingFlags.Instance
);
Debug.Assert(this.resolveContractMethod.IsGenericMethodDefinition);
}
/// <summary>
/// Returns all available implementations for the specified contract
/// </summary>
/// <returns>
/// A new enumerator for the available contract implementations
/// </returns>
public IEnumerable<Type> GetComponents<ContractType>() where ContractType : class {
Type contractType = typeof(ContractType);
foreach(Type checkedType in this.typeLister.GetTypes()) {
bool isImplementationOfContract =
(!checkedType.IsAbstract) &&
contractType.IsAssignableFrom(checkedType);
if(isImplementationOfContract) {
yield return checkedType;
}
}
}
/// <summary>
@ -71,31 +200,30 @@ namespace Nuclex.Support.Services {
/// <returns>
/// A new enumerator for the available contract implementations
/// </returns>
IEnumerable<ContractType> GetImplementations<ContractType>(bool completeOnly)
public IEnumerable<Type> GetComponents<ContractType>(bool completeOnly)
where ContractType : class {
Type contractType = typeof(ContractType);
if(completeOnly) {
return filterCompleteComponents(GetComponents<ContractType>());
} else {
return GetComponents<ContractType>();
}
}
Assembly[] loadedAssemblies = this.pluginRepository.LoadedAssemblies.ToArray();
for(int index = 0; index < loadedAssemblies.Length; ++index) {
Type[] assemblyTypes = loadedAssemblies[index].GetTypes();
for(int typeIndex = 0; typeIndex < assemblyTypes.Length; ++typeIndex) {
Type checkedType = assemblyTypes[typeIndex];
if(contractType.IsAssignableFrom(checkedType)) {
}
}
/// <summary>
/// Filters a list of components so only components whose dependencies can be
/// completely provided are enumerated
/// </summary>
/// <param name="types">Enumerable type list that will be filtered</param>
/// <returns>
/// Only those components whose dependencies can be completely provided
/// </returns>
private IEnumerable<Type> filterCompleteComponents(IEnumerable<Type> types) {
foreach(Type type in types) {
yield return type;
}
yield return null;
yield break;
}
private struct CachedContractLookUp {
public Type[] ValidComponents;
public int Version;
}
private Dictionary<Type, CachedContractLookUp> cachedContracts;
private int version;
/// <summary>
/// Allows the adjustment of the container's behavior in regard to
@ -127,11 +255,11 @@ namespace Nuclex.Support.Services {
return new ForContext(this, contractType);
}
// Allow Dependency on Container
// public Foo(IServiceProvider serviceProvider)
// public Foo(IserviceLocator serviceLocator)
// public Foo(Container container)
/// <summary>Retrieves the service of the specified type</summary>
/// <param name="contractType">
/// Contract for which the service will be retrieved
/// </param>
/// <returns>The service for the specified contract</returns>
public ContractType GetService<ContractType>() where ContractType : class {
throw new NotImplementedException();
}
@ -141,16 +269,44 @@ namespace Nuclex.Support.Services {
/// Contract for which the service will be retrieved
/// </param>
/// <returns>The service for the specified contract</returns>
object IServiceProvider.GetService(Type contractType) {
throw new NotImplementedException();
public object GetService(Type contractType) {
MethodInfo methodInstance = this.resolveContractMethod.MakeGenericMethod(
new Type[] { contractType }
);
return methodInstance.Invoke(this, null);
}
/// <summary>
/// Contains all assemblies partaking in the dependency injection scheme
/// Resolves all dependencies required to create a service for a contract
/// </summary>
private PluginRepository pluginRepository;
/// <typeparam name="ContractType">
/// Type of contract for which to resolve the implementation
/// </typeparam>
/// <returns>The settings for the contract including a valid factory</returns>
private Contract resolveContract<ContractType>() where ContractType : class {
throw new NotImplementedException();
}
private Contract resolveContract(Type contractType) {
Contract contract;
if(this.contracts.TryGetValue(contractType, out contract)) {
return contract;
}
throw new NotImplementedException();
}
/// <summary>MethodInfo for the resolve() method of this instance</summary>
private MethodInfo resolveContractMethod;
/// <summary>Lists all types partaking in the dependency injection</summary>
private ITypeLister typeLister;
/// <summary>Dictionary with settings for each individual contract</summary>
private Dictionary<Type, Contract> contracts;
}
#endif
} // namespace Nuclex.Support.DependencyInjection
} // namespace Nuclex.Support.Services