/// <summary>
/// Create a default <see cref="UnityContainer"/>.
/// </summary>
public UnityContainer()
{
// Root of the hierarchy
_root = this;
// Lifetime Container
LifetimeContainer = new LifetimeContainer(this);
// Registry
InitializeRootRegistry();
/////////////////////////////////////////////////////////////
// Context
_context = new ContainerContext(this);
// Build Strategies
_strategies = new StagedStrategyChain <BuilderStrategy, UnityBuildStage>
{
{ new LifetimeStrategy(), UnityBuildStage.Lifetime }, // Lifetime
{ new BuildKeyMappingStrategy(), UnityBuildStage.TypeMapping }, // Mapping
{ new BuildPlanStrategy(), UnityBuildStage.Creation } // Build
};
// Update on change
_strategies.Invalidated += (s, e) => _strategiesChain = _strategies.ToArray();
_strategiesChain = _strategies.ToArray();
// Default Policies and Strategies
SetDefaultPolicies(this);
}
// Root Container Constructor
internal ContainerContext(UnityContainer container, StagedStrategyChain <Pipeline, Stage> type,
StagedStrategyChain <Pipeline, Stage> factory,
StagedStrategyChain <Pipeline, Stage> instance)
{
// Container this context represents
Container = container;
// Lifetime Managers
_typeLifetimeManager = TransientLifetimeManager.Instance;
_factoryLifetimeManager = TransientLifetimeManager.Instance;
_instanceLifetimeManager = new ContainerControlledLifetimeManager();
// Initialize Pipelines
TypePipeline = type;
TypePipeline.Invalidated += (s, e) => TypePipelineCache = TypePipeline.ToArray();
TypePipelineCache = TypePipeline.ToArray();
FactoryPipeline = factory;
FactoryPipeline.Invalidated += (s, e) => FactoryPipelineCache = FactoryPipeline.ToArray();
FactoryPipelineCache = FactoryPipeline.ToArray();
InstancePipeline = instance;
InstancePipeline.Invalidated += (s, e) => InstancePipelineCache = InstancePipeline.ToArray();
InstancePipelineCache = InstancePipeline.ToArray();
}
// Child Container Constructor
internal ContainerContext(UnityContainer container)
{
// Container this context represents
Container = container;
var parent = Container._parent ?? throw new InvalidOperationException("Parent must not be null");
// Lifetime Managers
_typeLifetimeManager = parent.Context._typeLifetimeManager;
_factoryLifetimeManager = parent.Context._factoryLifetimeManager;
_instanceLifetimeManager = parent.Context._instanceLifetimeManager;
// TODO: Create on demand
// Initialize Pipelines
TypePipeline = new StagedStrategyChain <Pipeline, Stage>(parent.Context.TypePipeline);
TypePipeline.Invalidated += (s, e) => TypePipelineCache = TypePipeline.ToArray();
TypePipelineCache = TypePipeline.ToArray();
FactoryPipeline = new StagedStrategyChain <Pipeline, Stage>(parent.Context.FactoryPipeline);
FactoryPipeline.Invalidated += (s, e) => FactoryPipelineCache = FactoryPipeline.ToArray();
FactoryPipelineCache = FactoryPipeline.ToArray();
InstancePipeline = new StagedStrategyChain <Pipeline, Stage>(parent.Context.InstancePipeline);
InstancePipeline.Invalidated += (s, e) => InstancePipelineCache = InstancePipeline.ToArray();
InstancePipelineCache = InstancePipeline.ToArray();
}
public void OrderingAcrossStagesForStrategyChain()
{
StagedStrategyChain <BuilderStrategy, FakeStage> innerChain = new StagedStrategyChain <BuilderStrategy, FakeStage>();
StagedStrategyChain <BuilderStrategy, FakeStage> outerChain = new StagedStrategyChain <BuilderStrategy, FakeStage>(innerChain);
FakeStrategy innerStage1 = new FakeStrategy {
Name = "innerStage1"
};
FakeStrategy innerStage2 = new FakeStrategy {
Name = "innerStage2"
};
FakeStrategy outerStage1 = new FakeStrategy {
Name = "outerStage1"
};
FakeStrategy outerStage2 = new FakeStrategy {
Name = "outerStage2"
};
innerChain.Add(innerStage1, FakeStage.Stage1);
innerChain.Add(innerStage2, FakeStage.Stage2);
outerChain.Add(outerStage1, FakeStage.Stage1);
outerChain.Add(outerStage2, FakeStage.Stage2);
var chain = outerChain.ToArray();
AssertOrder(chain, innerStage1, outerStage1, innerStage2, outerStage2);
}
/// <summary>
/// Create a <see cref="Unity.UnityContainer"/> with the given parent container.
/// </summary>
/// <param name="parent">The parent <see cref="Unity.UnityContainer"/>. The current object
/// will apply its own settings first, and then check the parent for additional ones.</param>
private UnityContainer(UnityContainer parent)
{
// Parent
_parent = parent ?? throw new ArgumentNullException(nameof(parent));
_parent.LifetimeContainer.Add(this);
// Root of the hierarchy
_root = _parent._root;
// Lifetime
LifetimeContainer = new LifetimeContainer(this);
// Registry
Register = InitAndAdd;
/////////////////////////////////////////////////////////////
SetDefaultPolicies = parent.SetDefaultPolicies;
// Context and policies
_context = new ContainerContext(this);
// Strategies
_strategies = _parent._strategies;
_strategiesChain = _parent._strategiesChain;
_strategies.Invalidated += (s, e) => _strategiesChain = _strategies.ToArray();
// Caches
SetDefaultPolicies(this);
}
/// <summary>
/// Create a default <see cref="UnityContainer"/>.
/// </summary>
public UnityContainer()
{
_root = this;
// WithLifetime
LifetimeContainer = new LifetimeContainer(this);
// Registrations
_registrations = new Registrations(ContainerInitialCapacity);
// Context
_context = new ContainerContext(this);
// Methods
_get = Get;
_getGenericRegistration = GetOrAddGeneric;
_isExplicitlyRegistered = IsExplicitlyRegisteredLocally;
IsTypeExplicitlyRegistered = IsTypeTypeExplicitlyRegisteredLocally;
GetRegistration = GetOrAdd;
Register = AddOrUpdate;
GetPolicy = Get;
SetPolicy = Set;
ClearPolicy = Clear;
// Build Strategies
_strategies = new StagedStrategyChain <BuilderStrategy, UnityBuildStage>
{
{ // Array
new ArrayResolveStrategy(
typeof(UnityContainer).GetTypeInfo().GetDeclaredMethod(nameof(ResolveArray)),
typeof(UnityContainer).GetTypeInfo().GetDeclaredMethod(nameof(ResolveGenericArray))),
UnityBuildStage.Enumerable
},
{ // Enumerable
new EnumerableResolveStrategy(
typeof(UnityContainer).GetTypeInfo().GetDeclaredMethod(nameof(ResolveEnumerable)),
typeof(UnityContainer).GetTypeInfo().GetDeclaredMethod(nameof(ResolveGenericEnumerable))),
UnityBuildStage.Enumerable
},
{ new BuildKeyMappingStrategy(), UnityBuildStage.TypeMapping }, // Mapping
{ new LifetimeStrategy(), UnityBuildStage.Lifetime }, // WithLifetime
{ new BuildPlanStrategy(), UnityBuildStage.Creation } // Build
};
// Update on change
_strategies.Invalidated += OnStrategiesChanged;
_strategiesChain = _strategies.ToArray();
// Default Policies and Strategies
SetDefaultPolicies(this);
Set(typeof(Func <>), All, typeof(LifetimeManager), new PerResolveLifetimeManager());
Set(typeof(Func <>), All, typeof(ResolveDelegateFactory), (ResolveDelegateFactory)DeferredFuncResolverFactory.DeferredResolveDelegateFactory);
Set(typeof(Lazy <>), All, typeof(ResolveDelegateFactory), (ResolveDelegateFactory)GenericLazyResolverFactory.GetResolver);
// Register this instance
((IUnityContainer)this).RegisterInstance(typeof(IUnityContainer), null, this, new ContainerLifetimeManager());
}
public void InnerStrategiesComeBeforeOuterStrategiesInStrategyChain()
{
StagedStrategyChain <BuilderStrategy, FakeStage> innerChain = new StagedStrategyChain <BuilderStrategy, FakeStage>();
StagedStrategyChain <BuilderStrategy, FakeStage> outerChain = new StagedStrategyChain <BuilderStrategy, FakeStage>(innerChain);
FakeStrategy innerStrategy = new FakeStrategy();
FakeStrategy outerStrategy = new FakeStrategy();
innerChain.Add(innerStrategy, FakeStage.Stage1);
outerChain.Add(outerStrategy, FakeStage.Stage1);
var chain = outerChain.ToArray();
AssertOrder(chain, innerStrategy, outerStrategy);
}
public void MultipleChildContainers()
{
StagedStrategyChain <BuilderStrategy, FakeStage> innerChain = new StagedStrategyChain <BuilderStrategy, FakeStage>();
StagedStrategyChain <BuilderStrategy, FakeStage> outerChain = new StagedStrategyChain <BuilderStrategy, FakeStage>(innerChain);
StagedStrategyChain <BuilderStrategy, FakeStage> superChain = new StagedStrategyChain <BuilderStrategy, FakeStage>(outerChain);
FakeStrategy innerStrategy = new FakeStrategy {
Name = "innerStrategy"
};
FakeStrategy outerStrategy = new FakeStrategy {
Name = "outerStrategy"
};
FakeStrategy superStrategy = new FakeStrategy {
Name = "superStrategy"
};
innerChain.Add(innerStrategy, FakeStage.Stage1);
outerChain.Add(outerStrategy, FakeStage.Stage1);
superChain.Add(superStrategy, FakeStage.Stage1);
var chain = superChain.ToArray();
AssertOrder(chain, innerStrategy, outerStrategy, superStrategy);
}