public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope injectionScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
IDictionary<object, object> items = OperationContext.Current.Items();
object returnValue = items[uniqueRequestKey];
if (returnValue == null)
{
IDisposalScope disposalScope = injectionContext.DisposalScope;
IInjectionScope requestingScope = injectionContext.RequestingScope;
injectionContext.DisposalScope = OperationContext.Current.DisposalScope();
injectionContext.RequestingScope = exportStrategy.OwningScope;
returnValue = creationDelegate(exportStrategy.OwningScope, injectionContext);
injectionContext.DisposalScope = disposalScope;
injectionContext.RequestingScope = requestingScope;
if (returnValue != null)
{
items[uniqueRequestKey] = returnValue;
}
}
return returnValue;
}
public static void ExpectGetLog(this IInjectionContext mock, IGroboContainerLog result)
{
Expect.Once.On(mock)
.Method("GetLog")
.WithNoArguments()
.Will(Return.Value(result));
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="scope"></param>
/// <param name="context"></param>
/// <param name="activationDelegate"></param>
/// <param name="scopeName"></param>
public Scoped(IExportLocatorScope scope, IInjectionContext context, ActivationStrategyDelegate activationDelegate, string scopeName = null)
{
_scope = scope;
_context = context;
_activationDelegate = activationDelegate;
_scopeName = scopeName;
}
/// <summary>
/// CSTOR
/// </summary>
/// <param name="injectionContext"></param>
/// <param name="requestedName"></param>
/// <param name="requestedType"></param>
/// <param name="locateKey"></param>
public ResolveUnknownExportArgs(IInjectionContext injectionContext, string requestedName, Type requestedType, object locateKey)
{
InjectionContext = injectionContext;
RequestedName = requestedName;
RequestedType = requestedType;
LocateKey = locateKey;
}
protected virtual object LocateFromChildContainer(IInjectionContextValueProvider valueProvider,
IExportLocatorScope scope,
StaticInjectionContext staticContext,
Type type,
object key,
IInjectionContext context,
object defaultValue,
bool useDefault,
bool isRequired)
{
var value = valueProvider.GetValueFromInjectionContext(scope, type, key, context, false);
if (value != null)
{
return(value);
}
if (scope.TryLocate(type, out value, context, withKey: key))
{
return(value);
}
if (useDefault)
{
return(defaultValue);
}
if (isRequired)
{
throw new LocateException(staticContext);
}
return(null);
}
/// <summary>
/// This method is called by the export strategy when attempting to locate an export
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="exportStrategyScope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope exportStrategyScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
if (instance.Value != null)
{
return instance.Value;
}
IDisposalScope contextdisposalScope = injectionContext.DisposalScope;
IInjectionScope requestingScope = injectionContext.RequestingScope;
injectionContext.DisposalScope = exportStrategyScope;
injectionContext.RequestingScope = exportStrategyScope;
object instanceValue = creationDelegate(exportStrategyScope, injectionContext);
injectionContext.DisposalScope = contextdisposalScope;
injectionContext.RequestingScope = requestingScope;
instance.Value = instanceValue;
IDisposable disposable = instanceValue as IDisposable;
if (disposable != null)
{
disposalScope.AddDisposable(disposable);
}
return instance.Value;
}
/// <summary>
/// Method that is called each time a delegate needs to be created
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="context"></param>
/// <returns></returns>
public TDelegate CreateDelegate(IExportLocatorScope scope, IDisposalScope disposalScope,
IInjectionContext context)
{
var funcClass = new FuncClass(scope, disposalScope, context, _action, _injectionContextCreator, _arg1Id, _arg2Id, _arg3Id, _arg4Id, _arg5Id);
return((TDelegate)((object)_funcMethodInfo.CreateDelegate(typeof(TDelegate), funcClass)));
}
/// <summary>
/// Internal filter method that loops through the collection of filters
/// </summary>
/// <param name="context">injection context</param>
/// <param name="strategy">export strategy</param>
/// <returns>true if the strategy matches</returns>
private bool InternalExportStrategyFilter(IInjectionContext context, IExportStrategy strategy)
{
if (UseOr)
{
foreach (ExportStrategyFilter exportStrategyFilter in filters)
{
if (exportStrategyFilter(context, strategy))
{
return true;
}
}
return false;
}
foreach (ExportStrategyFilter exportStrategyFilter in filters)
{
if (!exportStrategyFilter(context, strategy))
{
return false;
}
}
return true;
}
public void CanInjectAndExtractWithClasses()
{
IInjectionContext injection = new InjectionClass();
injection.State = 1;
IBuildContext context = new BuildContext();
context.SetContextObject(injection);
TaskClass task = new TaskClass(2);
Assert.IsNull(task.InjectedObject);
ContextInjector.Inject(context, task);
Assert.IsNotNull(task.InjectedObject);
Assert.AreEqual(1, task.InjectedObject.State);
ReturnCode result = task.Run();
Assert.AreEqual(ReturnCode.Success, result);
ContextInjector.Extract(context, task);
IInjectionContext modifiedInjection = context.GetContextObject <IInjectionContext>();
Assert.AreEqual(task.NewState, modifiedInjection.State);
}
private IContextHolder GetHolder(IInjectionContext context, int threadId)
{
Assert.AreSame(injectionContext, context);
Assert.IsNull(holder, "duplicate call");
holder = NewMock <IContextHolder>();
return(holder);
}
/// <summary>
/// Condition meet
/// </summary>
/// <param name="scope">injection scope</param>
/// <param name="injectionContext">injection context</param>
/// <param name="exportStrategy">export strategy</param>
/// <returns>condition</returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
bool found = false;
CurrentInjectionInfo[] injectionStack = injectionContext.GetInjectionStack();
for (int i = injectionStack.Length - 1; i >= 0 && !found; i--)
{
CurrentInjectionInfo injectionInfo = injectionStack[i];
foreach (Type ancestorType in ancestorTypes)
{
if (ancestorType.GetTypeInfo().IsInterface)
{
if(injectionInfo.ActivationType == ancestorType ||
(injectionInfo.CurrentExportStrategy != null && injectionInfo.CurrentExportStrategy.ExportTypes.Contains(ancestorType)))
{
found = true;
break;
}
}
else if (injectionInfo.ActivationType == ancestorType)
{
found = true;
break;
}
}
}
return found;
}
public void CanInjectAndExtractWithStructs()
{
IInjectionContext injection = new InjectionStruct();
injection.State = 1;
IBuildContext context = new BuildContext();
context.SetContextObject(injection);
TaskStruct task = new TaskStruct(2);
Assert.IsNull(task.InjectedObject);
// Still need to box / unbox the struct task
IBuildTask boxed = task;
ContextInjector.Inject(context, boxed);
task = (TaskStruct)boxed;
Assert.IsNotNull(task.InjectedObject);
Assert.AreEqual(1, task.InjectedObject.State);
ReturnCode result = task.Run();
Assert.AreEqual(ReturnCode.Success, result);
ContextInjector.Extract(context, task);
IInjectionContext modifiedInjection = context.GetContextObject <IInjectionContext>();
Assert.AreEqual(task.NewState, modifiedInjection.State);
}
/// <summary>
/// Activate value
/// </summary>
/// <param name="exportInjectionScope">injection scope</param>
/// <param name="context">injection context</param>
/// <param name="consider">consider filter</param>
/// <param name="locateKey"></param>
/// <returns>activated value</returns>
public object Activate(IInjectionScope exportInjectionScope, IInjectionContext context, ExportStrategyFilter consider, object locateKey)
{
string parameterName = ParameterName;
if (context.TargetInfo == null)
{
throw new Exception("Must be injecting into type");
}
if (string.IsNullOrEmpty(parameterName))
{
parameterName = context.TargetInfo.InjectionTargetName;
}
string propertyString = HttpContext.Current.Request.QueryString[parameterName];
if (context.TargetInfo.InjectionTargetType != typeof(string) && !string.IsNullOrEmpty(propertyString))
{
Type underlyingType = Nullable.GetUnderlyingType(context.TargetInfo.InjectionTargetType);
if (underlyingType != null)
{
return Convert.ChangeType(propertyString, underlyingType);
}
if (context.TargetInfo.InjectionTargetType.IsValueType)
{
return Convert.ChangeType(propertyString, context.TargetInfo.InjectionTargetType);
}
throw new ArgumentException("You can only import ValueTypes or Nullable Types");
}
return propertyString;
}
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope injectionScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
object returnValue = null;
if (HttpContext.Current != null)
{
returnValue = HttpContext.Current.Items[uniqueId];
}
if (returnValue == null)
{
IDisposalScope disposalScope = injectionContext.DisposalScope;
IInjectionScope requestingScope = injectionContext.RequestingScope;
injectionContext.DisposalScope = MVCDisposalScopeProvider.GetDisposalScope();
injectionContext.RequestingScope = exportStrategy.OwningScope;
returnValue = creationDelegate(exportStrategy.OwningScope, injectionContext);
injectionContext.DisposalScope = disposalScope;
injectionContext.RequestingScope = requestingScope;
if (returnValue != null && HttpContext.Current != null)
{
HttpContext.Current.Items[uniqueId] = returnValue;
}
}
return returnValue;
}
public T Create <T1, T2, T3, T4, T>(IInjectionContext context, T1 arg1, T2 arg2,
T3 arg3, T4 arg4)
{
return((T)CreateImpl(typeof(T), context,
new[] { typeof(T1), typeof(T2), typeof(T3), typeof(T4) },
arg1, arg2, arg3, arg4));
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="scope"></param>
/// <param name="context"></param>
/// <param name="parameterName"></param>
/// <returns></returns>
public virtual bool DynamicCanLocate <T>(IExportLocatorScope scope, IInjectionContext context, string parameterName)
{
var value = context.GetExtraData(parameterName);
if (value is T)
{
return(true);
}
value = context.GetValueByType(typeof(T));
if (value is T)
{
return(true);
}
var currentScope = scope;
while (currentScope != null)
{
if (currentScope.GetExtraData(parameterName) != null ||
currentScope.Values.Any(o => o is T))
{
return(true);
}
currentScope = currentScope.Parent;
}
return(scope.GetInjectionScope().CanLocate(typeof(T)));
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="context"></param>
/// <param name="action"></param>
/// <param name="injectionContextCreator"></param>
public FuncClass(IExportLocatorScope scope, IDisposalScope disposalScope, IInjectionContext context, ActivationStrategyDelegate action, IInjectionContextCreator injectionContextCreator)
{
_scope = scope;
_disposalScope = disposalScope;
_context = context;
_action = action;
_injectionContextCreator = injectionContextCreator;
}
/// <summary>
/// Can locate a type
/// </summary>
/// <param name="context"></param>
/// <param name="resolveName"></param>
/// <param name="resolveType"></param>
/// <param name="consider"></param>
/// <param name="locateKey"></param>
/// <returns></returns>
public bool CanLocate(IInjectionContext context, string resolveName, Type resolveType, ExportStrategyFilter consider, object locateKey)
{
if (resolveType != null && resolveType.IsInterface)
{
return true;
}
return false;
}
public static void ExpectGetContext(this IContextHolder mock, IInternalContainer worker,
IInjectionContext result)
{
Expect.Once.On(mock)
.Method("GetContext")
.With(worker)
.Will(Return.Value(result));
}
/// <summary>
/// If this strategy meets condition and the target target strategy meets condition
/// </summary>
/// <param name="injectionContext"></param>
/// <returns></returns>
public override bool MeetsCondition(IInjectionContext injectionContext)
{
if (exportCondition != null && !exportCondition.ConditionMeet(OwningScope, injectionContext, this))
{
return false;
}
return strategy.MeetsCondition(injectionContext);
}
/// <summary>
/// activate the strategy
/// </summary>
/// <param name="exportInjectionScope">injection scope</param>
/// <param name="context">injection context</param>
/// <param name="consider">consider filter</param>
/// <param name="locateKey"></param>
/// <returns>activated object</returns>
public override object Activate(IInjectionScope exportInjectionScope, IInjectionContext context, ExportStrategyFilter consider, object locateKey)
{
if (_lifestyle != null)
{
return _lifestyle.Locate(InternalActivate, exportInjectionScope, context, this);
}
return InternalActivate(exportInjectionScope, context);
}
private static Func <Type, object> CreateFunc(IExportLocatorScope scope, IInjectionContext context)
{
return(type =>
{
var clone = context.Clone();
return scope.Locate(type, clone);
});
}
public virtual object PostBuildUp(object value, StaticInjectionContext staticContext, IExportLocatorScope scope,
IInjectionContext injectionContext)
{
var timer = (Stopwatch)injectionContext.GetExtraData(staticContext.TargetInfo.UniqueId);
timer.Stop();
return(value);
}
public void InjectionContextActivate(IInjectionContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
InjectionContextActivateCalled = true;
}
public object Activate(IInjectionScope exportInjectionScope, IInjectionContext context, ExportStrategyFilter consider, object locateKey)
{
if (HttpContext.Current != null)
{
return HttpContext.Current.Request.Path;
}
return null;
}
/// <summary>
/// Create GraceOptional instance.
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="injectionContext"></param>
/// <returns></returns>
public GraceOptional <TResult> CreateOptional(
IExportLocatorScope scope,
IDisposalScope disposalScope,
IInjectionContext injectionContext)
{
return(new GraceOptional <TResult>(scope, qualifier, () =>
{
return (TResult)_delegate(scope, disposalScope, injectionContext);
}));
}
public static void ExpectCreate <T1, T2, T3, T>(this IInternalContainer mock,
IInjectionContext context, T1 arg1, T2 arg2, T3 arg3, T result)
{
Expect
.Once
.On(mock)
.Method("Create", typeof(T1), typeof(T2), typeof(T3), typeof(T))
.With(context, arg1, arg2, arg3)
.Will(Return.Value(result));
}
public static void ExpectGetAndFail(this IInternalContainer mock, Type type,
IInjectionContext context, Exception e)
{
Expect
.Once
.On(mock)
.Method("Get")
.With(type, context)
.Will(Throw.Exception(e));
}
public static void ExpectCreate <T>(this IInternalContainer mock,
IInjectionContext context, T result)
{
Expect
.Once
.On(mock)
.Method("Create", typeof(T))
.With(context)
.Will(Return.Value(result));
}
public static void ExpectBuildCreateFunc <T1, T>(this IInternalContainer mock,
IInjectionContext context, Func <T1, T> result)
{
Expect
.Once
.On(mock)
.Method("BuildCreateFunc", typeof(T1), typeof(T))
.With(context)
.Will(Return.Value(result));
}
/// <summary>
/// Activate the export
/// </summary>
/// <param name="exportInjectionScope"></param>
/// <param name="context"></param>
/// <param name="consider"></param>
/// <param name="locateKey"></param>
/// <returns></returns>
public override object Activate(IInjectionScope exportInjectionScope, IInjectionContext context, ExportStrategyFilter consider, object locateKey)
{
object targetOject = strategy.Activate(exportInjectionScope, context, consider, locateKey);
if (targetOject != null)
{
return propertyAccessor(targetOject);
}
return null;
}
private T[] GetInstances <T>(IInjectionContext context, Type abstractionType)
{
var implementations = GetImplementations(abstractionType);
var result = new T[implementations.Length];
for (var i = 0; i < result.Length; i++)
{
result[i] = (T)UnWrap(abstractionType, implementations[i].GetOrCreateInstance(context, creationContext));
}
return(result);
}
public virtual object PreBuildUp(StaticInjectionContext staticContext, IExportLocatorScope scope,
IInjectionContext injectionContext)
{
var timer = new Stopwatch();
injectionContext.SetExtraData(staticContext.TargetInfo.UniqueId, timer);
timer.Start();
return(null);
}
/// <summary>
/// Locate specific type using extra data or key
/// </summary>
/// <param name="type">type to locate</param>
/// <param name="extraData">extra data to be used during construction</param>
/// <param name="consider">filter out exports you don't want to consider</param>
/// <param name="withKey">key to use for locating type</param>
/// <param name="isDynamic">skip cache and look through exports</param>
/// <returns>located instance</returns>
// ReSharper disable once MethodOverloadWithOptionalParameter
public override object Locate(Type type, object extraData = null, ActivationStrategyFilter consider = null, object withKey = null, bool isDynamic = false)
{
IInjectionContext context = extraData == null ?
null : CreateInjectionContextFromExtraData(type, extraData);
if (withKey == null && consider == null && !isDynamic)
{
return(DelegateCache.ExecuteActivationStrategyDelegateWithContext(type, this, false, context));
}
return(InternalLocate(this, this, type, consider, withKey, context, false, isDynamic));
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="context"></param>
/// <param name="action"></param>
/// <param name="injectionContextCreator"></param>
/// <param name="arg1Id"></param>
/// <param name="arg2Id"></param>
/// <param name="arg3Id"></param>
/// <param name="arg4Id"></param>
public FuncClass(IExportLocatorScope scope, IDisposalScope disposalScope, IInjectionContext context, ActivationStrategyDelegate action, IInjectionContextCreator injectionContextCreator, string arg1Id, string arg2Id, string arg3Id, string arg4Id)
{
_scope = scope;
_disposalScope = disposalScope;
_context = context;
_action = action;
_injectionContextCreator = injectionContextCreator;
_arg1Id = arg1Id;
_arg2Id = arg2Id;
_arg3Id = arg3Id;
_arg4Id = arg4Id;
}
/// <summary>
/// Called to determine if the export strategy meets the condition to be activated
/// </summary>
/// <param name="scope">injection scope that this export exists in</param>
/// <param name="injectionContext">injection context for this request</param>
/// <param name="exportStrategy">export strategy being tested</param>
/// <returns>true if the export meets the condition</returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
foreach (IExportCondition exportCondition in exportConditions)
{
if (!exportCondition.ConditionMeet(scope, injectionContext, exportStrategy))
{
return false;
}
}
return true;
}
/// <summary>
/// This method is called by the export strategy when attempting to locate an export
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="injectionScope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope injectionScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
if (lifestyleContainer == null)
{
lifestyleContainer = LocateContainer(exportStrategy.OwningScope, injectionContext);
}
return lifestyleContainer.Locate(creationDelegate, injectionScope, injectionContext, exportStrategy);
}
/// <summary>
/// Method creates 2 arg Func
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="context"></param>
/// <returns></returns>
public Func <T1, T2, TResult> CreateFunc(IExportLocatorScope scope, IDisposalScope disposalScope,
IInjectionContext context)
{
return((arg1, arg2) =>
{
var newContext = context?.Clone() ?? _injectionContextCreator.CreateContext(null);
newContext.SetExtraData(_t1Id, arg1);
newContext.SetExtraData(_t2Id, arg2);
return (TResult)_action(scope, disposalScope, newContext);
});
}
/// <summary>
/// Create lazy instance
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="injectionContext"></param>
/// <returns></returns>
public Lazy <TResult, IActivationStrategyMetadata> CreateLazy(IExportLocatorScope scope, IDisposalScope disposalScope,
IInjectionContext injectionContext)
{
return(new Lazy <TResult, IActivationStrategyMetadata>(() =>
{
if (_delegate == null)
{
_delegate = CompileDelegate();
}
return (TResult)_delegate(scope, disposalScope, injectionContext);
}, _metadata));
}
/// <summary>
/// Create lazy instance
/// </summary>
/// <param name="scope"></param>
/// <param name="disposalScope"></param>
/// <param name="injectionContext"></param>
/// <returns></returns>
public Lazy <TResult> CreateLazy(IExportLocatorScope scope, IDisposalScope disposalScope,
IInjectionContext injectionContext)
{
return(new Lazy <TResult>(() =>
{
if (_delegate == null)
{
_delegate = CompileDelegate();
}
return (TResult)_delegate(scope, disposalScope, injectionContext);
}));
}
/// <summary>
/// Execute delegate by injecting parameters then executing
/// </summary>
/// <param name="scope"></param>
/// <param name="context"></param>
/// <param name="injectionContext"></param>
/// <param name="delegate"></param>
/// <returns></returns>
public static object InjectAndExecuteDelegate(IExportLocatorScope scope, StaticInjectionContext context,
IInjectionContext injectionContext, Delegate @delegate)
{
var executeFunc = _executeDelegateWithInjections.GetValueOrDefault(@delegate.GetType());
if (executeFunc == null)
{
executeFunc = CreateExecuteDelegate(@delegate);
_executeDelegateWithInjections = _executeDelegateWithInjections.Add(@delegate.GetType(), executeFunc);
}
return(executeFunc(scope, context, injectionContext, @delegate));
}
public object GetOrCreateInstance(IInjectionContext context, ICreationContext creationContext)
{
if (instance == null)
{
lock (configurationLock)
if (instance == null)
{
IClassFactory noParametersFactory = implementation.GetFactory(Type.EmptyTypes, creationContext);
return(instance = noParametersFactory.Create(context, new object[0]));
}
}
context.Reused(ObjectType);
return(instance);
}
/// <summary>
/// Called to determine if the export strategy meets the condition to be activated
/// </summary>
/// <param name="scope">injection scope that this export exists in</param>
/// <param name="injectionContext">injection context for this request</param>
/// <param name="exportStrategy">export strategy being tested</param>
/// <returns>true if the export meets the condition</returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
if (injectionContext.TargetInfo != null)
{
foreach (Attribute injectionTypeAttribute in injectionContext.TargetInfo.InjectionTypeAttributes)
{
if (injectionTypeAttribute.GetType().GetTypeInfo().IsAssignableFrom(attributeType.GetTypeInfo()))
{
return true;
}
}
}
return false;
}
/// <summary>
/// Called to determine if the export strategy meets the condition to be activated
/// </summary>
/// <param name="scope">injection scope that this export exists in</param>
/// <param name="injectionContext">injection context for this request</param>
/// <param name="exportStrategy">export strategy being tested</param>
/// <returns>true if the export meets the condition</returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
if (answer.HasValue)
{
return answer.Value;
}
bool returnValue = ConfigurationManager.AppSettings[settingName] == null;
if (cacheAnswer)
{
answer = returnValue;
}
return returnValue;
}
/// <summary>
/// Inject instance with dependencies
/// </summary>
/// <param name="scope">export locator scope</param>
/// <param name="instance">instance to inject</param>
/// <param name="extraData">extra data, can be null</param>
public static void Inject(this IExportLocatorScope scope, object instance, object extraData = null)
{
if (scope == null)
{
throw new ArgumentNullException(nameof(scope));
}
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
var parentScope = scope;
while (parentScope.Parent != null)
{
parentScope = parentScope.Parent;
}
var injectionScope = (IInjectionScope)parentScope;
var value = parentScope.GetExtraDataOrDefaultValue <InjectionHashTreeHolder>(typeof(InjectionHashTreeHolder)) ??
(InjectionHashTreeHolder)parentScope.SetExtraData(typeof(InjectionHashTreeHolder), new InjectionHashTreeHolder(), false);
var instanceType = instance.GetType();
var injectionDelegate = value.Delegates.GetValueOrDefault(instanceType);
if (injectionDelegate == null)
{
injectionDelegate =
injectionScope.StrategyCompiler.CreateInjectionDelegate(injectionScope, instanceType);
injectionDelegate =
ImmutableHashTree.ThreadSafeAdd(ref value.Delegates, instanceType, injectionDelegate);
}
var disposalScope = injectionScope.ScopeConfiguration.DisposalScopeProvider?.ProvideDisposalScope(scope) ?? scope;
IInjectionContext context = null;
if (extraData != null)
{
context = injectionScope.CreateContext(extraData);
}
injectionDelegate(scope, disposalScope, context, instance);
}
/// <summary>
/// Called to determine if the export strategy meets the condition to be activated
/// </summary>
/// <param name="scope">injection scope that this export exists in</param>
/// <param name="injectionContext">injection context for this request</param>
/// <param name="exportStrategy">export strategy being tested</param>
/// <returns>true if the export meets the condition</returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
IInjectionTargetInfo targetInfo = injectionContext.TargetInfo;
if (targetInfo != null && injectedType != null)
{
foreach (Type type in injectedType)
{
if (targetInfo.InjectionType.GetTypeInfo().IsAssignableFrom(type.GetTypeInfo()))
{
return true;
}
}
}
return false;
}
public object Create(IInjectionContext context, object[] args)
{
try
{
context.BeginConstruct(constructedType);
return(creatorFunc(context.InternalContainer, context, args));
}
catch (Exception)
{
context.Crash();
throw;
}
finally
{
context.EndConstruct(constructedType);
}
}
/// <summary>
/// returns true when the app.config setting is equal to the provided value
/// </summary>
/// <param name="scope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
if (answer.HasValue)
{
return answer.Value;
}
string appSetting = ConfigurationManager.AppSettings[settingName];
bool returnValue = false;
if (appSetting != null)
{
if (settingValue == null)
{
return false;
}
if (appSetting.GetType() == settingValue.GetType())
{
returnValue = Equals(settingValue, appSetting);
}
try
{
returnValue = Equals(settingValue, Convert.ChangeType(appSetting, settingValue.GetType()));
}
catch (Exception exp)
{
Logger.Error(
string.Format("Exception thrown while converting {0} to {1}", appSetting, settingValue.GetType().FullName),
supplemental,
exp);
}
}
else if (settingValue == null)
{
returnValue = true;
}
if (cacheAnswer)
{
answer = returnValue;
}
return returnValue;
}
public object[] GetAll(Type type, IInjectionContext context)
{
try
{
context.BeginGetAll(type);
return(GetInstances <object>(context, type));
}
catch (Exception)
{
context.Crash();
throw;
}
finally
{
context.EndGetAll(type);
}
}
/// <summary>
/// This method is called by the export strategy when attempting to locate an export
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="exportStrategyScope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope exportStrategyScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
object returnValue = null;
if (intanceRef != null)
{
returnValue = intanceRef.Target;
}
if (returnValue == null)
{
lock (lockObject)
{
if (intanceRef != null)
{
returnValue = intanceRef.Target;
}
if (returnValue == null)
{
IDisposalScope disposalScope = injectionContext.DisposalScope;
IInjectionScope requeInjectionScope = injectionContext.RequestingScope;
// null scope because weak exports can't have
injectionContext.DisposalScope = null;
injectionContext.RequestingScope = exportStrategyScope;
returnValue = creationDelegate(exportStrategyScope, injectionContext);
injectionContext.DisposalScope = disposalScope;
injectionContext.RequestingScope = requeInjectionScope;
if (returnValue != null)
{
intanceRef = new WeakReference(returnValue);
}
}
}
}
return returnValue;
}
/// <summary>
/// This method is called by the export strategy when attempting to locate an export
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="exportStrategyScope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope exportStrategyScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
object returnValue = injectionContext.RequestingScope.GetExtraData(uniqueId);
if (returnValue == null)
{
IInjectionScope requestScope = injectionContext.RequestingScope;
returnValue = creationDelegate(exportStrategyScope, injectionContext);
requestScope.SetExtraData(uniqueId, returnValue);
}
return returnValue;
}
/// <summary>
/// Called to determine if the export strategy meets the condition to be activated
/// </summary>
/// <param name="scope">injection scope that this export exists in</param>
/// <param name="injectionContext">injection context for this request</param>
/// <param name="exportStrategy">export strategy being tested</param>
/// <returns>true if the export meets the condition</returns>
public bool ConditionMeet(IInjectionScope scope, IInjectionContext injectionContext, IExportStrategy exportStrategy)
{
if (answer.HasValue)
{
return answer.Value;
}
string appSetting = ConfigurationManager.AppSettings[settingName];
bool returnValue = string.IsNullOrEmpty(appSetting) ||
string.Compare("false", appSetting, StringComparison.CurrentCultureIgnoreCase) == 0;
if (cacheAnswer)
{
answer = returnValue;
}
return returnValue;
}
/// <summary>
/// This method is called by the export strategy when attempting to locate an export
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="injectionScope"></param>
/// <param name="injectionContext"></param>
/// <param name="exportStrategy"></param>
/// <returns></returns>
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope injectionScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
object returnValue = injectionContext.GetExtraData(key);
if (returnValue == null)
{
returnValue = creationDelegate(injectionScope, injectionContext);
if (returnValue != null)
{
injectionContext.SetExtraData(key, returnValue);
}
}
return returnValue;
}
/// <summary>
/// Creates an instance in a singleton scope
/// </summary>
/// <param name="creationDelegate"></param>
/// <param name="exportStrategyScope"></param>
/// <param name="injectionContext"></param>
/// <returns></returns>
public static object CreateInSingletonScope(ExportActivationDelegate creationDelegate,
IInjectionScope exportStrategyScope,
IInjectionContext injectionContext)
{
object returnValue = null;
IDisposalScope disposalScope = injectionContext.DisposalScope;
IInjectionScope requestingScope = injectionContext.RequestingScope;
injectionContext.DisposalScope = exportStrategyScope;
injectionContext.RequestingScope = exportStrategyScope;
returnValue = creationDelegate(exportStrategyScope, injectionContext);
injectionContext.DisposalScope = disposalScope;
injectionContext.RequestingScope = requestingScope;
return returnValue;
}
public object Locate(ExportActivationDelegate creationDelegate,
IInjectionScope injectionScope,
IInjectionContext injectionContext,
IExportStrategy exportStrategy)
{
object returnValue = null;
IInjectionScope locateScope = FindNamedScope(injectionContext.RequestingScope);
if (locateScope == null)
{
throw new InjectionScopeCouldNotBeFoundException(_namedScope);
}
returnValue = locateScope.GetExtraData(_uniqueId);
if (returnValue != null)
{
return returnValue;
}
lock (_lockObject)
{
returnValue = locateScope.GetExtraData(_uniqueId) ??
SingletonLifestyle.CreateInSingletonScope(creationDelegate,
locateScope,
injectionContext);
if (returnValue != null)
{
locateScope.SetExtraData(_uniqueId, returnValue);
IDisposable disposable = returnValue as IDisposable;
if (disposable != null)
{
locateScope.AddDisposable(disposable);
}
}
}
return returnValue;
}
/// <summary>
/// ResolveAll will be called every time a collection is resolved
/// </summary>
/// <param name="owningScope"></param>
/// <param name="context"></param>
/// <param name="resolveName"></param>
/// <param name="resolveType"></param>
/// <param name="collectionEmpty"></param>
/// <param name="consider"></param>
/// <param name="locateKey"></param>
/// <returns></returns>
public IEnumerable<object> LocateAll(IInjectionScope owningScope, IInjectionContext context, string resolveName, Type resolveType, bool collectionEmpty, ExportStrategyFilter consider, object locateKey)
{
if (resolveType != null && resolveType.IsInterface && collectionEmpty)
{
Type createType = typeof(NSubstituteExportStrategy<>).MakeGenericType(resolveType);
ICompiledExportStrategy newStrategy = Activator.CreateInstance(createType) as ICompiledExportStrategy;
if (newStrategy != null)
{
newStrategy.SetLifestyleContainer(new SingletonLifestyle());
newStrategy.AddExportType(resolveType);
owningScope.AddStrategy(newStrategy);
yield return newStrategy.Activate(owningScope, context, null, locateKey);
}
}
}
/// <summary>
/// Activate the export
/// </summary>
/// <param name="exportInjectionScope"></param>
/// <param name="context"></param>
/// <param name="consider"></param>
/// <param name="locateKey"></param>
/// <returns></returns>
public override object Activate(IInjectionScope exportInjectionScope, IInjectionContext context, ExportStrategyFilter consider, object locateKey)
{
if (Log.IsDebugEnabled)
{
if (Lifestyle != null)
{
Log.DebugFormat("Activating export type {0} with life cycle container {1} ",
ActivationType.FullName,
Lifestyle.GetType().FullName);
}
else
{
Log.DebugFormat("Activating export type {0} with no life cycle container ",
ActivationType.FullName);
}
}
try
{
if (_lifestyle != null)
{
return _lifestyle.Locate(activationDelegate, exportInjectionScope, context, this);
}
return activationDelegate(exportInjectionScope, context);
}
catch (LocateException locateException)
{
locateException.AddLocationInformationEntry(new StrategyBeingActivated(this));
throw;
}
catch (Exception exp)
{
GeneralLocateException locateException = new GeneralLocateException(null, (Type)null, context, exp);
locateException.AddLocationInformationEntry(new StrategyBeingActivated(this));
throw locateException;
}
}
/// <summary>
/// Locates an ILifestyle
/// </summary>
/// <param name="injectionScope"></param>
/// <param name="injectionContext"></param>
/// <returns></returns>
private static ILifestyle LocateContainer(IInjectionScope injectionScope, IInjectionContext injectionContext)
{
ILifestyle returnValue = null;
try
{
IPerRequestLifestyleProvider provider =
injectionScope.Locate<IPerRequestLifestyleProvider>(injectionContext);
if (provider != null)
{
returnValue = provider.ProvideContainer();
}
}
catch (Exception exp)
{
Logger.Error("Exception throw while trying to locate IPerRequestLifestyleProvider", "SingletonPerRequest", exp);
}
return returnValue ?? new SingletonPerInjectionContextLifestyle();
}
/// <summary>
/// Method used to invoke an activation delegate
/// </summary>
/// <param name="exportStrategyScope"></param>
/// <param name="activationDelegate"></param>
/// <param name="injectionContext"></param>
/// <returns></returns>
public static object InvokeActivationDelegate(ExportActivationDelegate activationDelegate,
IInjectionScope exportStrategyScope,
IInjectionContext injectionContext)
{
return activationDelegate(exportStrategyScope, injectionContext);
}
public void InjectionContextActivation(IInjectionContext context)
{
Assert.NotNull(context);
ContextActivationCalled = true;
}