/// <summary>
/// Initializes a new instance of the <see cref="T:CSF.FlexDi.Container"/> class.
/// </summary>
/// <remarks>
/// <para>
/// All of the parameters to this method are optional. Any which are not provided will be fulfilled using
/// default implementations.
/// </para>
/// <para>
/// Of the parameters which might be used, the most useful is likely to be <paramref name="options"/> and
/// <paramref name="parentContainer"/>.
/// </para>
/// </remarks>
/// <param name="registry">An optional service registry instance.</param>
/// <param name="cache">An optional service cache instance.</param>
/// <param name="resolver">An optional resolver instance.</param>
/// <param name="disposer">An optional service disposer instance.</param>
/// <param name="options">A set of container options.</param>
/// <param name="parentContainer">An optional parent container - indicating that this container is the child of another.</param>
/// <param name="resolverFactory">An optional resolver factory instance.</param>
public Container(IRegistersServices registry = null,
ICachesResolvedServiceInstances cache = null,
IFulfilsResolutionRequests resolver = null,
IDisposesOfResolvedInstances disposer = null,
ContainerOptions options = null,
IContainer parentContainer = null,
ICreatesResolvers resolverFactory = null)
{
disposedValue = false;
this.parentContainer = parentContainer;
this.options = GetContainerOptions(options, parentContainer);
constructorSelector = new ConstructorWithMostParametersSelector(this.options.UseNonPublicConstructors);
this.registry = registry ?? new Registry();
this.cache = cache ?? new ResolvedServiceCache();
this.disposer = disposer ?? new ServiceInstanceDisposer();
this.registryStack = new RegistryStackFactory().CreateRegistryStack(this);
this.resolver = resolver ?? GetResolver(resolverFactory);
this.resolver.ServiceResolved += InvokeServiceResolved;
PerformSelfRegistrations();
}
/// <summary>
/// Sets the given <paramref name="parent"/> as this instance's
/// <see cref="IServiceRegistrationProvider.ParentServiceProvider"/>.
/// Requests for types HERE will
/// first check this container itself; and if not registered
/// here, they will then check this parent. Additionally,
/// dependencies needed for services constructed HERE will first
/// check this container, and if not resolved here, WILL check
/// this <paramref name="parent"/>. Note that dependencies needed
/// for Types registered on the <paramref name="parent"/> will NOT
/// come from this or any other child containers --- and at the same
/// time, ALL parents WILL be checked up the hierarchy.
/// NOTICE that this means that the <paramref name="parent"/>
/// container MUST live at least as long as THIS container,
/// AND all parents up the hierarchy must also --- otherwise dependencies
/// resolved from a parent container could be disposed before
/// a service that is using them.
/// </summary>
/// <param name="parent">Not null.</param>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException">The <paramref name="parent"/>
/// cannot be cyclically scoped, AND THIS
/// <see cref="IServiceRegistrationProvider.ParentServiceProvider"/>
/// must be null at this time.</exception>
internal void Scope(IServiceProvider parent)
{
if (parent == null)
{
throw new ArgumentNullException(nameof(parent));
}
if (object.ReferenceEquals(this, parent))
{
throw new ArgumentException($"Requested parent container is THIS: {parent}", nameof(parent));
}
lock (registrations) {
if (parentServiceProvider != null)
{
throw new ArgumentException($"Container cannot be scoped twice: {this}", nameof(parent));
}
IServiceProvider checkParent = (parent as IServiceRegistrationProvider)?.ParentServiceProvider;
while (checkParent != null)
{
if (object.ReferenceEquals(checkParent, parent) ||
object.ReferenceEquals(checkParent, this))
{
throw new ArgumentException($"Container cannot be scoped twice: {parent}", nameof(parent));
}
checkParent = (checkParent as IServiceRegistrationProvider)?.ParentServiceProvider;
}
parentServiceProvider = parent;
parentServiceRegistrationProvider = parent as IServiceRegistrationProvider;
}
}
public void Resolve_using_request_can_get_registered_service_without_name(IServiceRegistrationProvider provider,
[Registration] IServiceRegistration registration,
ResolutionRequest request)
{
// Arrange
var sut = GetSut(provider);
var instance = new SampleServiceImplementationOne();
Mock.Get(provider)
.Setup(x => x.CanFulfilRequest(request))
.Returns(false);
Mock.Get(provider)
.Setup(x => x.Get(request))
.Returns((IServiceRegistration)null);
Mock.Get(provider)
.Setup(x => x.CanFulfilRequest(It.Is <ResolutionRequest>(r => r.ServiceType == request.ServiceType && r.Name == null)))
.Returns(true);
Mock.Get(provider)
.Setup(x => x.Get(It.Is <ResolutionRequest>(r => r.ServiceType == request.ServiceType && r.Name == null)))
.Returns(registration);
Mock.Get(registration)
.Setup(x => x.GetFactoryAdapter(request))
.Returns(new InstanceFactory(instance));
// Act
var result = sut.Resolve(request);
// Assert
Assert.That(result.ResolvedObject, Is.SameAs(instance));
}
public static bool TryInject(
IServiceRegistrationProvider serviceProvider,
object target,
Type attributeType,
ITrace logger = null,
Func <Type, object> instanceProvider = null,
bool tryConstructArguments = false,
bool?requireConstructorAttributes = null,
IReadOnlyCollection <Type> constructorAttributeTypes = null)
{
if (serviceProvider == null)
{
throw new ArgumentNullException(nameof(serviceProvider));
}
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (attributeType == null)
{
throw new ArgumentNullException(nameof(attributeType));
}
if ((constructorAttributeTypes == null) ||
(constructorAttributeTypes.Count == 0))
{
constructorAttributeTypes = new[] { typeof(ServiceProviderConstructorAttribute) }
}
;
ServiceConstructorRequest request
= new ServiceConstructorRequest(logger ?? TraceSources.For(typeof(ServiceConstructorMethods)));
request.Logger.Verbose(
"Injecting '{0}' on '{1}'.",
attributeType.GetFriendlyFullName(),
target.GetType().GetFriendlyFullName());
if (ServiceConstructorMethods.invokeMember(
ServiceConstructorMethods.findMethods(target, attributeType, request.TraceStack),
true,
target,
out _,
request,
serviceProvider,
instanceProvider,
tryConstructArguments,
requireConstructorAttributes,
constructorAttributeTypes,
false))
{
request.Logger.Verbose(
"Inject result for '{0}' on '{1}' is true.",
attributeType.GetFriendlyFullName(),
target.GetType().GetFriendlyFullName());
return(true);
}
request.Logger.Info(
"Inject result for '{0}' on '{1}' is false.",
attributeType.GetFriendlyFullName(),
target.GetType().GetFriendlyFullName());
return(false);
}
/// <summary>
/// Constructor. NOTICE that the <paramref name="serviceProvider"/>
/// MUST NOT implement <see cref="IServiceRegistrationProvider"/>.
/// </summary>
/// <param name="serviceProvider">Required; and MUST NOT implement
/// <see cref="IServiceRegistrationProvider"/>.</param>
/// <param name="parentServiceProvider">Optional parent for the
/// <see cref="IServiceRegistrationProvider.ParentServiceProvider"/>.</param>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException"></exception>
public ServiceRegistrationProviderWrapper(
IServiceProvider serviceProvider,
IServiceProvider parentServiceProvider = null)
{
if (serviceProvider is IServiceRegistrationProvider)
{
throw new ArgumentException(
$"{nameof(ServiceRegistrationProviderWrapper)} {nameof(serviceProvider)}"
+ $" must not implement {nameof(IServiceRegistrationProvider)}"
+ $": '{serviceProvider.GetType().GetFriendlyFullName()}'.");
}
this.serviceProvider = serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider));
ParentServiceProvider = parentServiceProvider;
parentServiceRegistrationProvider = parentServiceProvider as IServiceRegistrationProvider;
if (object.ReferenceEquals(serviceProvider, parentServiceProvider))
{
throw new ArgumentException(
$"Requested parent container is THIS: {parentServiceProvider}",
nameof(parentServiceProvider));
}
IServiceProvider checkParent = parentServiceRegistrationProvider?.ParentServiceProvider;
while (checkParent != null)
{
if (object.ReferenceEquals(checkParent, parentServiceProvider) ||
object.ReferenceEquals(checkParent, serviceProvider))
{
throw new ArgumentException(
$"Container cannot be scoped twice: {parentServiceProvider}",
nameof(parentServiceProvider));
}
checkParent = (checkParent as IServiceRegistrationProvider)?.ParentServiceProvider;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="T:CSF.FlexDi.Resolution.Proxies.UnregisteredServiceResolverProxy"/> class.
/// </summary>
/// <param name="proxiedResolver">Proxied resolver.</param>
/// <param name="registrationResolver">Registration resolver.</param>
/// <param name="unregisteredRegistrationProvider">Unregistered registration provider.</param>
/// <param name="cache">The service cache.</param>
/// <param name="registry">The service registry</param>
public UnregisteredServiceResolverProxy(IResolver proxiedResolver,
IResolvesRegistrations registrationResolver,
IServiceRegistrationProvider unregisteredRegistrationProvider,
ICachesResolvedServiceInstances cache,
IRegistersServices registry)
: base(proxiedResolver)
{
if (registry == null)
{
throw new ArgumentNullException(nameof(registry));
}
if (unregisteredRegistrationProvider == null)
{
throw new ArgumentNullException(nameof(unregisteredRegistrationProvider));
}
if (registrationResolver == null)
{
throw new ArgumentNullException(nameof(registrationResolver));
}
this.cache = cache;
this.registrationResolver = registrationResolver;
this.unregisteredRegistrationProvider = unregisteredRegistrationProvider;
this.registry = registry;
}
/// <summary>
/// Utility method resolves the type and logs and returns success.
/// </summary>
private static bool tryResolve(
Type targetType,
out object result,
ServiceConstructorRequest request,
IServiceRegistrationProvider serviceProvider,
Func <Type, object> instanceProvider,
bool logMustResolve)
{
bool CheckResult(object service, string sourceName, out object successResult)
{
if (targetType.IsInstanceOfType(service))
{
request.TraceStack.Add($"{sourceName} resolved '{targetType.GetFriendlyFullName()}'.");
successResult = service;
return(true);
}
successResult = null;
return(false);
}
if (instanceProvider != null)
{
if (CheckResult(instanceProvider(targetType), "InstanceProvider Func", out result))
{
return(true);
}
}
if (CheckResult(serviceProvider.GetService(targetType, request), nameof(IServiceProvider), out result))
{
return(true);
}
if (serviceProvider.ParentServiceProvider
is IServiceRegistrationProvider parentServiceRegistrationProvider)
{
if (CheckResult(
parentServiceRegistrationProvider.GetService(targetType, request),
nameof(IServiceRegistrationProvider.ParentServiceProvider),
out result))
{
return(true);
}
}
else
{
if (CheckResult(
serviceProvider.ParentServiceProvider?.GetService(targetType),
nameof(IServiceRegistrationProvider.ParentServiceProvider),
out result))
{
return(true);
}
}
if (logMustResolve)
{
request.TraceStack.Add($"Did not resolve '{targetType.GetFriendlyFullName()}'.");
}
return(false);
}
public void Resolve_can_create_dictionary_of_instances_by_enum_values([Frozen, ResolvesToFailure] IResolver proxiedResolver,
[Frozen] IDictionaryFactory dictionaryFactory,
[Frozen] IServiceRegistrationProvider registrationProvider,
NamedInstanceDictionaryResolverProxy sut,
ResolutionRequest request,
SampleEnum[] names,
ResolutionPath path)
{
// Arrange
var serviceType = request.ServiceType;
var keyType = typeof(SampleEnum);
var valueType = typeof(ISampleService);
Mock.Get(dictionaryFactory)
.Setup(x => x.IsGenericDictionaryType(serviceType))
.Returns(true);
Mock.Get(dictionaryFactory)
.Setup(x => x.GetKeyType(serviceType))
.Returns(keyType);
Mock.Get(dictionaryFactory)
.Setup(x => x.GetValueType(serviceType))
.Returns(valueType);
Mock.Get(dictionaryFactory)
.Setup(x => x.Create(keyType, valueType))
.Returns(() => new Dictionary <SampleEnum, ISampleService>());
var registrations = names
.Select(x => x.ToString())
.Select(x => Mock.Of <IServiceRegistration>(r => r.Name == x && r.ServiceType == valueType))
.ToArray();
Mock.Get(registrationProvider)
.Setup(x => x.GetAll(valueType))
.Returns(registrations);
Mock.Get(proxiedResolver)
.Setup(x => x.Resolve(It.Is <ResolutionRequest>(r => r.ServiceType == valueType)))
.Returns((ResolutionRequest r) => ResolutionResult.Success(path, new SampleServiceImplementationOne()));
// Act
var result = sut.Resolve(request);
// Assert
Mock.Get(proxiedResolver)
.Verify(x => x.Resolve(It.Is <ResolutionRequest>(r => r.ServiceType == valueType)), Times.Exactly(names.Length));
foreach (var name in names.Select(x => x.ToString()).ToArray())
{
Mock.Get(proxiedResolver)
.Verify(x => x.Resolve(It.Is <ResolutionRequest>(r => r.Name == name)), Times.Once);
}
Assert.That(result.IsSuccess, Is.True);
Assert.That(result.ResolvedObject, Is.InstanceOf <IDictionary <SampleEnum, ISampleService> >());
var resolvedObject = (IDictionary <SampleEnum, ISampleService>)result.ResolvedObject;
Assert.That(resolvedObject, Has.Count.EqualTo(names.Length));
}
/// <summary>
/// Initializes a new instance of the
/// <see cref="T:CSF.FlexDi.Resolution.Proxies.UnregisteredServiceResolverProxyFactory"/> class.
/// </summary>
/// <param name="registrationResolver">Registration resolver.</param>
/// <param name="unregisteredRegistrationProvider">Unregistered registration provider.</param>
public UnregisteredServiceResolverProxyFactory(IResolvesRegistrations registrationResolver,
IServiceRegistrationProvider unregisteredRegistrationProvider = null)
{
if (registrationResolver == null)
{
throw new ArgumentNullException(nameof(registrationResolver));
}
this.registrationResolver = registrationResolver;
this.unregisteredRegistrationProvider = unregisteredRegistrationProvider;
}
Resolver GetSut(IServiceRegistrationProvider provider, IServiceRegistrationProvider unregisteredProvider = null)
{
var instanceCreator = new Mock <ICreatesObjectInstances>();
instanceCreator
.Setup(x => x.CreateFromFactory(It.IsAny <IFactoryAdapter>(),
It.IsAny <ResolutionPath>(),
It.IsAny <IServiceRegistration>()))
.Returns((IFactoryAdapter a, ResolutionPath p, IServiceRegistration r) => CreateInstance(a, p, r));
return(new Resolver(provider, instanceCreator.Object));
}
public DefaultServiceRegister(
IServiceRegistrationProvider registrationProvider,
IServiceProvider serviceProvider,
IOptions <RpcServerOptions> options, ILogger <DefaultServiceRegister> logger)
{
this._registrationProvider = registrationProvider;
this._serviceProvider = serviceProvider;
this._logger = logger;
this._optionValues = options.Value;
this._localBindAddress = new IPEndPoint(GetBindAddress(), this._optionValues.Port);
}
/// <summary>
/// Initializes a new instance of the <see cref="T:CSF.FlexDi.Resolution.Resolver"/> class.
/// </summary>
/// <param name="registrationProvider">Registration provider.</param>
/// <param name="instanceCreator">Instance creator.</param>
public Resolver(IServiceRegistrationProvider registrationProvider,
ICreatesObjectInstances instanceCreator)
{
if (instanceCreator == null)
{
throw new ArgumentNullException(nameof(instanceCreator));
}
if (registrationProvider == null)
{
throw new ArgumentNullException(nameof(registrationProvider));
}
this.registrationProvider = registrationProvider;
this.instanceCreator = instanceCreator;
}
/// <summary>
/// Initializes a new instance of the
/// <see cref="T:CSF.FlexDi.Resolution.Proxies.NamedInstanceDictionaryResolverProxy"/> class.
/// </summary>
/// <param name="proxiedResolver">Proxied resolver.</param>
/// <param name="registrationAccessor">Registration accessor.</param>
/// <param name="dictionaryFactory">Dictionary factory.</param>
public NamedInstanceDictionaryResolverProxy(IResolver proxiedResolver,
IServiceRegistrationProvider registrationAccessor,
IDictionaryFactory dictionaryFactory) : base(proxiedResolver)
{
if (dictionaryFactory == null)
{
throw new ArgumentNullException(nameof(dictionaryFactory));
}
if (registrationAccessor == null)
{
throw new ArgumentNullException(nameof(registrationAccessor));
}
this.registrationAccessor = registrationAccessor;
this.dictionaryFactory = dictionaryFactory;
}
/// <summary>
/// Coordinates the disposal of all disposable service/component instances within the given cache.
/// </summary>
/// <param name="registrationProvider">Registration provider.</param>
/// <param name="instanceCache">A cache which provides access to the component instances.</param>
public void DisposeInstances(IServiceRegistrationProvider registrationProvider,
ICachesResolvedServiceInstances instanceCache)
{
if (registrationProvider == null)
{
throw new ArgumentNullException(nameof(registrationProvider));
}
if (instanceCache == null)
{
throw new ArgumentNullException(nameof(instanceCache));
}
var registrationsToDispose = GetRegistrationsToDispose(registrationProvider);
Dispose(registrationsToDispose, instanceCache);
}
public void DisposeInstances_does_not_dispose_non_disposable_objects(IServiceRegistrationProvider registrations,
ICachesResolvedServiceInstances cache,
ServiceInstanceDisposer sut,
IServiceRegistration registration,
object nonDisposable)
{
// Arrange
Mock.Get(registration).SetupGet(x => x.DisposeWithContainer).Returns(false);
Mock.Get(registration).SetupGet(x => x.Cacheable).Returns(true);
Mock.Get(registrations).Setup(x => x.GetAll()).Returns(new [] { registration });
object obj = nonDisposable;
Mock.Get(cache)
.Setup(x => x.TryGet(registration, out obj))
.Callback(() => obj = nonDisposable)
.Returns(true);
// Act
Assert.That(() => sut.DisposeInstances(registrations, cache), Throws.Nothing);
}
public void DisposeInstances_does_not_dispose_non_cached_instances(IServiceRegistrationProvider registrations,
ICachesResolvedServiceInstances cache,
ServiceInstanceDisposer sut,
IServiceRegistration registration,
IDisposable disposable)
{
// Arrange
Mock.Get(registration).SetupGet(x => x.DisposeWithContainer).Returns(true);
Mock.Get(registration).SetupGet(x => x.Cacheable).Returns(true);
Mock.Get(registrations).Setup(x => x.GetAll()).Returns(new [] { registration });
object obj = disposable;
Mock.Get(cache)
.Setup(x => x.TryGet(registration, out obj))
.Returns(false);
// Act
sut.DisposeInstances(registrations, cache);
// Assert
Mock.Get(disposable).Verify(x => x.Dispose(), Times.Never);
}
/// <summary>
/// Constructor. Notice that the <paramref name="factory"/> is optional:
/// <see cref="IsImplementationContainerCreated"/> is
/// set based on this argument by default.
/// </summary>
/// <param name="serviceProvider">Required.</param>
/// <param name="serviceType">Required.</param>
/// <param name="implementationType">Required.</param>
/// <param name="isSingleton">Required.</param>
/// <param name="factory">OPTIONAL: if null, the <see cref="ServiceConstructorMethods"/>
/// constructs the object. Note also that <see cref="IsImplementationContainerCreated"/>
/// is set true by default if this is null; and is set false by default
/// if this is not null.</param>
/// <param name="isImplementationContainerCreated">Specifies the value
/// for <see cref="IsImplementationContainerCreated"/>;
/// which determines the disposal policy: this class ONLY disposes singletons
/// marked as <c>IsImplementationContainerCreated</c> (and always disposes
/// such instances). This value is nullable: if null, it will be set true
/// if the <c>factory</c> is null; and otherwise false.</param>
/// <exception cref="ArgumentNullException"/>
/// <exception cref="ArgumentException">If the <paramref name="implementationType"/>
/// does not extend the <paramref name="serviceType"/></exception>
public ServiceRegistration(
IServiceRegistrationProvider serviceProvider,
Type serviceType,
Type implementationType,
bool isSingleton,
Func <IServiceProvider, object> factory = null,
bool?isImplementationContainerCreated = null)
{
this.serviceProvider = serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider));
ServiceType = serviceType ?? throw new ArgumentNullException(nameof(serviceType));
ImplementationType = implementationType ?? throw new ArgumentNullException(nameof(implementationType));
if (!serviceType.IsAssignableFrom(implementationType))
{
throw new ArgumentException(
$"Implementation type '{implementationType.GetFriendlyFullName()}'"
+ $" is not assignable to service type '{serviceType.GetFriendlyFullName()}'",
nameof(implementationType));
}
IsSingleton = isSingleton;
this.factory = factory;
IsImplementationContainerCreated = isImplementationContainerCreated ?? (factory == null);
}
public void Dispose()
{
List <ServiceRegistration> disposeRegistrations;
lock (registrations) {
disposeRegistrations = DisposeRegistrationsWithContainer
? registrations.Values.ToList()
: null;
registrations.Clear();
parentServiceRegistrationProvider = null;
parentServiceProvider = null;
}
if (disposeRegistrations == null)
{
return;
}
disposeRegistrations.Sort(DateComparer);
disposeRegistrations.Sort(DependencyComparer);
disposeRegistrations.Sort(DependantComparer);
foreach (ServiceRegistration disposeRegistration in disposeRegistrations)
{
disposeRegistration.Dispose();
}
public static bool TryConstruct(
this IServiceProvider serviceProvider,
Type targetType,
out object service,
ITrace logger = null,
Func <Type, object> instanceProvider = null,
bool tryConstructArguments = false,
bool?requireAttributes = null,
params Type[] attributeTypes)
{
IServiceRegistrationProvider serviceRegistrationProvider
= serviceProvider as IServiceRegistrationProvider
?? new ServiceRegistrationProviderWrapper(serviceProvider);
return(ServiceConstructorMethods.TryConstruct(
targetType,
out service,
new ServiceConstructorRequest(logger),
serviceRegistrationProvider,
instanceProvider,
tryConstructArguments,
requireAttributes,
attributeTypes));
}
IDictionary <ServiceRegistrationKey, IServiceRegistration> GetNonConflictingRegistrations(IEnumerable <ServiceRegistrationKey> alreadyFound,
IServiceRegistrationProvider provider,
Type serviceTypeFilter)
{
if (alreadyFound == null)
{
throw new ArgumentNullException(nameof(alreadyFound));
}
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
var candidates = (serviceTypeFilter != null)? provider.GetAll(serviceTypeFilter) : provider.GetAll();
if (candidates == null)
{
candidates = new IServiceRegistration[0];
}
return((from registration in candidates
let key = ServiceRegistrationKey.ForRegistration(registration)
where !alreadyFound.Contains(key)
select new { Registration = registration, Key = key })
.ToDictionary(k => k.Key, v => v.Registration));
}
public static bool TryConstruct(
Type targetType,
out object service,
ServiceConstructorRequest request,
IServiceRegistrationProvider serviceProvider,
Func <Type, object> instanceProvider = null,
bool tryConstructArguments = false,
bool?requireConstructorAttributes = null,
IReadOnlyCollection <Type> constructorAttributeTypes = null)
{
if (targetType == null)
{
throw new ArgumentNullException(nameof(targetType));
}
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (serviceProvider == null)
{
throw new ArgumentNullException(nameof(serviceProvider));
}
if ((constructorAttributeTypes == null) ||
(constructorAttributeTypes.Count == 0))
{
constructorAttributeTypes = new[] { typeof(ServiceProviderConstructorAttribute) }
}
;
if (request.ConstructingTypes.Contains(targetType))
{
request.TraceStack.Add(
"Found a recursive constructor dependency"
+ $": '{targetType.GetFriendlyFullName()}'"
+ " ... cannot continue.");
service = null;
return(false);
}
request.ConstructingTypes.Add(targetType);
request.Logger.Verbose("Constructing {0}.", targetType.GetFriendlyFullName());
if (ServiceConstructorMethods.invokeMember(
ServiceConstructorMethods.findConstructors(
targetType,
requireConstructorAttributes,
constructorAttributeTypes,
request.TraceStack),
false,
null,
out service,
request,
serviceProvider,
instanceProvider,
tryConstructArguments,
requireConstructorAttributes,
constructorAttributeTypes,
false))
{
request.Logger.Verbose(
"Construct result for '{0}' is true: '{1}'.",
targetType.GetFriendlyFullName(),
service.GetType().GetFriendlyFullName());
request.ConstructingTypes.Remove(targetType);
return(true);
}
request.Logger.Warning("Construct result for '{0}' is false.", targetType.GetFriendlyFullName());
request.ConstructingTypes.Remove(targetType);
return(false);
}
private static bool invokeMember(
IEnumerable <MethodBase> members,
bool isMethod,
object methodTarget,
out object newInstance,
ServiceConstructorRequest request,
IServiceRegistrationProvider serviceProvider,
Func <Type, object> instanceProvider,
bool tryConstructArguments,
bool?requireConstructorAttributes,
IReadOnlyCollection <Type> constructorAttributeTypes,
bool isRecursed)
{
newInstance = null;
bool success = false;
foreach (MethodBase methodBase in members)
{
ParameterInfo[] parameters = methodBase.GetParameters();
if (parameters.Length == 0)
{
success = isMethod
? ServiceConstructorMethods.tryInvokeMethod(
methodTarget,
(MethodInfo)methodBase,
new object[0],
request.TraceStack)
: ServiceConstructorMethods.tryInvokeConstructor(
(ConstructorInfo)methodBase,
new object[0],
out newInstance,
request.TraceStack);
break;
}
List <object> arguments = new List <object>(parameters.Length);
foreach (ParameterInfo parameterInfo in parameters)
{
if (ServiceConstructorMethods.tryResolve(
parameterInfo.ParameterType,
out object parameterResult,
request,
serviceProvider,
instanceProvider,
!tryConstructArguments))
{
arguments.Add(parameterResult);
continue;
}
if (tryConstructArguments)
{
if (request.ConstructingTypes.Contains(parameterInfo.ParameterType))
{
request.TraceStack.Add(
"Found a recursive constructor dependency"
+ $": '{parameterInfo.ParameterType.GetFriendlyFullName()}'"
+ " ... cannot continue.");
break;
}
request.ConstructingTypes.Add(parameterInfo.ParameterType);
bool argumentSuccess
= ServiceConstructorMethods.invokeMember(
ServiceConstructorMethods.findConstructors(
parameterInfo.ParameterType,
requireConstructorAttributes,
constructorAttributeTypes,
request.TraceStack),
false,
null,
out object argumentResult,
request,
serviceProvider,
instanceProvider,
true,
requireConstructorAttributes,
constructorAttributeTypes,
true);
request.ConstructingTypes.Remove(parameterInfo.ParameterType);
if (argumentSuccess)
{
arguments.Add(argumentResult);
continue;
}
}
if (parameterInfo.HasDefaultValue)
{
request.TraceStack.Add(
$"Parameter '{parameterInfo.ParameterType.GetFriendlyFullName()}' has default value.");
arguments.Add(parameterInfo.DefaultValue);
}
else
{
break;
}
}
if ((arguments.Count != parameters.Length) ||
(isMethod
? !ServiceConstructorMethods.tryInvokeMethod(
methodTarget,
(MethodInfo)methodBase,
arguments.ToArray(),
request.TraceStack)
: !ServiceConstructorMethods.tryInvokeConstructor(
(ConstructorInfo)methodBase,
arguments.ToArray(),
out newInstance,
request.TraceStack)))
{
continue;
}
request.Dependencies.TryAddRange(
methodBase.DeclaringType,
parameters.Select(parameter => parameter.ParameterType));
success = true;
break;
}
if (isRecursed)
{
return(success);
}
if (success)
{
if (request.Logger.IsVerbose())
{
request.Logger.Verbose(GetTraceMessage());
}
}
else
{
if (request.Logger.IsInfo())
{
request.Logger.Info(GetTraceMessage());
}
}
string GetTraceMessage()
{
string separator = $"{Environment.NewLine} ";
StringBuilder sb = request.TraceStack.ToConcatenatedString(null, separator);
if (sb.Length != 0)
{
sb.Insert(0, " ");
}
return(sb.ToString());
}
return(success);
}
/// <summary>
/// Gets a collection of the service/component registrations which are eligible for disposal.
/// </summary>
/// <returns>The registrations to dispose.</returns>
/// <param name="registrationProvider">Registration provider.</param>
protected virtual IReadOnlyCollection <IServiceRegistration> GetRegistrationsToDispose(IServiceRegistrationProvider registrationProvider)
{
if (registrationProvider == null)
{
throw new ArgumentNullException(nameof(registrationProvider));
}
return(registrationProvider
.GetAll()
.Where(x => x.Cacheable && x.DisposeWithContainer)
.ToArray());
}
public void Resolve_resolves_unregistered_service_when_resolution_is_unsuccesful([Frozen, ResolvesToFailure] IResolver proxiedResolver,
[Frozen] IResolvesRegistrations registrationResolver,
[Frozen] IServiceRegistrationProvider unregisteredRegistrationProvider,
UnregisteredServiceResolverProxy sut,
ResolutionPath path,
ResolutionRequest request,
ResolutionResult resolutionResult,
IServiceRegistration registration)
{
// Arrange
Mock.Get(proxiedResolver)
.Setup(x => x.Resolve(request))
.Returns(ResolutionResult.Failure(path));
Mock.Get(unregisteredRegistrationProvider)
.Setup(x => x.Get(request))
.Returns(registration);
Mock.Get(registrationResolver)
.Setup(x => x.Resolve(request, registration))
.Returns(resolutionResult);
// Act
var result = sut.Resolve(request);
// Assert
Assert.That(result, Is.SameAs(resolutionResult));
}
