/// <summary>
/// Retrieve a service instance from the context.
/// </summary>
/// <param name="serviceData">
/// Data object containing information about how to resolve the service
/// implementation instance.
/// </param>
/// <returns>The service instance.</returns>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="serviceData" /> is <see langword="null" />.
/// </exception>
public object Resolve(ServiceImplementationData serviceData)
{
if (serviceData == null)
{
throw new ArgumentNullException("serviceData");
}
return(serviceData.ImplementationResolver(this.OperationLifetime));
}
public void ReleaseInstance_NullInstanceContext()
{
var data = new ServiceImplementationData();
var container = new ContainerBuilder().Build();
var provider = new AutofacInstanceProvider(container, data);
object instance = new object();
Assert.Throws<ArgumentNullException>(() => provider.ReleaseInstance(null, instance));
}
public void GetInstance_NullInstanceContext()
{
var data = new ServiceImplementationData();
var container = new ContainerBuilder().Build();
var provider = new AutofacInstanceProvider(container, data);
var message = new TestMessage();
Assert.Throws<ArgumentNullException>(() => provider.GetInstance(null, message));
}
/// <summary>
/// Gets data about a service implementation.
/// </summary>
/// <param name="value">
/// The constructor string passed in to the service host factory
/// that is used to determine which type to host/use as a service
/// implementation.
/// </param>
/// <returns>
/// A <see cref="Autofac.Integration.Wcf.ServiceImplementationData"/>
/// object containing information about which type to use in
/// the service host and which type to use to resolve the implementation.
/// </returns>
/// <remarks>
/// <para>
/// This resolver takes the constructor string stored in the .svc file
/// and resolves a matching keyed or typed service from the root
/// application container. That resolved type is used both for the
/// service host as well as the implementation type.
/// </para>
/// </remarks>
/// <exception cref="System.InvalidOperationException">
/// Thrown if the <see cref="Autofac.Integration.Wcf.AutofacHostFactory.Container"/>
/// is <see langword="null" />;
/// if the service indicated by <paramref name="value" />
/// is not registered with the <see cref="Autofac.Integration.Wcf.AutofacHostFactory.Container"/>;
/// or if the service is a singleton that isn't registered as a singleton.
/// </exception>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="value" /> is <see langword="null" />.
/// </exception>
/// <exception cref="System.ArgumentException">
/// Thrown if <paramref name="value" /> is empty.
/// </exception>
public virtual ServiceImplementationData GetServiceImplementationData(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
if (value.Length == 0)
{
throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Properties.Resources.ArgumentException_StringEmpty, "value"));
}
if (AutofacHostFactory.Container == null)
{
throw new InvalidOperationException(AutofacHostFactoryResources.ContainerIsNull);
}
IComponentRegistration registration = null;
if (!AutofacHostFactory.Container.ComponentRegistry.TryGetRegistration(new KeyedService(value, typeof(object)), out registration))
{
Type serviceType = Type.GetType(value, false);
if (serviceType != null)
{
AutofacHostFactory.Container.ComponentRegistry.TryGetRegistration(new TypedService(serviceType), out registration);
}
}
if (registration == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, AutofacHostFactoryResources.ServiceNotRegistered, value));
}
var data = new ServiceImplementationData
{
ConstructorString = value,
ServiceTypeToHost = registration.Activator.LimitType,
ImplementationResolver = l => l.ResolveComponent(registration, Enumerable.Empty <Parameter>())
};
var implementationType = registration.Activator.LimitType;
if (IsSingletonWcfService(implementationType))
{
if (!IsRegistrationSingleInstance(registration))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, AutofacHostFactoryResources.ServiceMustBeSingleInstance, implementationType.FullName));
}
data.HostAsSingleton = true;
}
else
{
if (IsRegistrationSingleInstance(registration))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, AutofacHostFactoryResources.ServiceMustNotBeSingleInstance, implementationType.FullName));
}
}
return(data);
}
/// <summary>
/// Gets data about a service implementation.
/// </summary>
/// <param name="value">
/// The constructor string passed in to the service host factory
/// that is used to determine which type to host/use as a service
/// implementation.
/// </param>
/// <returns>
/// A <see cref="Autofac.Integration.Wcf.ServiceImplementationData"/>
/// object containing information about which type to use in
/// the service host and which type to use to resolve the implementation.
/// </returns>
/// <remarks>
/// <para>
/// This resolver takes the constructor string stored in the .svc file
/// and resolves a matching keyed or typed service from the root
/// application container. That resolved type is used both for the
/// service host as well as the implementation type.
/// </para>
/// </remarks>
/// <exception cref="System.InvalidOperationException">
/// Thrown if the <see cref="Autofac.Integration.Wcf.AutofacHostFactory.Container"/>
/// is <see langword="null" />;
/// if the service indicated by <paramref name="value" />
/// is not registered with the <see cref="Autofac.Integration.Wcf.AutofacHostFactory.Container"/>;
/// or if the service is a singleton that isn't registered as a singleton.
/// </exception>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="value" /> is <see langword="null" />.
/// </exception>
/// <exception cref="System.ArgumentException">
/// Thrown if <paramref name="value" /> is empty.
/// </exception>
public virtual ServiceImplementationData GetServiceImplementationData(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
if (value.Length == 0)
{
throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Properties.Resources.ArgumentException_StringEmpty, "value"));
}
if (AutofacHostFactory.Container == null)
{
throw new InvalidOperationException(AutofacHostFactoryResources.ContainerIsNull);
}
IComponentRegistration registration = null;
if (!AutofacHostFactory.Container.ComponentRegistry.TryGetRegistration(new KeyedService(value, typeof(object)), out registration))
{
Type serviceType = Type.GetType(value, false);
if (serviceType != null)
{
AutofacHostFactory.Container.ComponentRegistry.TryGetRegistration(new TypedService(serviceType), out registration);
}
}
if (registration == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, AutofacHostFactoryResources.ServiceNotRegistered, value));
}
var data = new ServiceImplementationData
{
ConstructorString = value,
ServiceTypeToHost = registration.Activator.LimitType,
ImplementationResolver = l => l.ResolveComponent(registration, Enumerable.Empty<Parameter>())
};
var implementationType = registration.Activator.LimitType;
if (IsSingletonWcfService(implementationType))
{
if (!IsRegistrationSingleInstance(registration))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, AutofacHostFactoryResources.ServiceMustBeSingleInstance, implementationType.FullName));
}
data.HostAsSingleton = true;
}
else
{
if (IsRegistrationSingleInstance(registration))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, AutofacHostFactoryResources.ServiceMustNotBeSingleInstance, implementationType.FullName));
}
}
return data;
}
/// <summary>
/// Initializes a new instance of the <see cref="AutofacDependencyInjectionServiceBehavior"/> class.
/// </summary>
/// <param name="rootLifetimeScope">
/// The container from which service implementations should be resolved.
/// </param>
/// <param name="serviceData">
/// Data about which service type should be hosted and how to resolve
/// the type to use for the service implementation.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="rootLifetimeScope" /> or <paramref name="serviceData" /> is <see langword="null" />.
/// </exception>
public AutofacDependencyInjectionServiceBehavior(ILifetimeScope rootLifetimeScope, ServiceImplementationData serviceData)
{
if (rootLifetimeScope == null)
{
throw new ArgumentNullException("rootLifetimeScope");
}
if (serviceData == null)
{
throw new ArgumentNullException("serviceData");
}
_rootLifetimeScope = rootLifetimeScope;
_serviceData = serviceData;
}
/// <summary>
/// Initializes a new instance of the <see cref="AutofacDependencyInjectionServiceBehavior"/> class.
/// </summary>
/// <param name="rootLifetimeScope">
/// The container from which service implementations should be resolved.
/// </param>
/// <param name="serviceData">
/// Data about which service type should be hosted and how to resolve
/// the type to use for the service implementation.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="rootLifetimeScope" /> or <paramref name="serviceData" /> is <see langword="null" />.
/// </exception>
public AutofacDependencyInjectionServiceBehavior(ILifetimeScope rootLifetimeScope, ServiceImplementationData serviceData)
{
if (rootLifetimeScope == null)
{
throw new ArgumentNullException("rootLifetimeScope");
}
if (serviceData == null)
{
throw new ArgumentNullException("serviceData");
}
_rootLifetimeScope = rootLifetimeScope;
_serviceData = serviceData;
}
/// <summary>
/// Initializes a new instance of the <see cref="AutofacInstanceProvider"/> class.
/// </summary>
/// <param name="rootLifetimeScope">
/// The lifetime scope from which service instances should be resolved.
/// </param>
/// <param name="serviceData">
/// Data object containing information about how to resolve the service
/// implementation instance.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="rootLifetimeScope" /> or <paramref name="serviceData" /> is <see langword="null" />.
/// </exception>
public AutofacInstanceProvider(ILifetimeScope rootLifetimeScope, ServiceImplementationData serviceData)
{
if (rootLifetimeScope == null)
{
throw new ArgumentNullException("rootLifetimeScope");
}
if (serviceData == null)
{
throw new ArgumentNullException("serviceData");
}
_rootLifetimeScope = rootLifetimeScope;
_serviceData = serviceData;
}
/// <summary>
/// Initializes a new instance of the <see cref="AutofacInstanceProvider"/> class.
/// </summary>
/// <param name="rootLifetimeScope">
/// The lifetime scope from which service instances should be resolved.
/// </param>
/// <param name="serviceData">
/// Data object containing information about how to resolve the service
/// implementation instance.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="rootLifetimeScope" /> or <paramref name="serviceData" /> is <see langword="null" />.
/// </exception>
public AutofacInstanceProvider(ILifetimeScope rootLifetimeScope, ServiceImplementationData serviceData)
{
if (rootLifetimeScope == null)
{
throw new ArgumentNullException("rootLifetimeScope");
}
if (serviceData == null)
{
throw new ArgumentNullException("serviceData");
}
_rootLifetimeScope = rootLifetimeScope;
_serviceData = serviceData;
}
/// <summary>
/// Adds the custom service behavior required for dependency injection.
/// </summary>
/// <param name="serviceHost">The service host.</param>
/// <param name="contractType">The web service contract type.</param>
/// <param name="container">The container.</param>
/// <param name="parameters">Parameters for the instance.</param>
public static void AddDependencyInjectionBehavior(this ServiceHostBase serviceHost, Type contractType, ILifetimeScope container, IEnumerable <Parameter> parameters)
{
if (serviceHost == null)
{
throw new ArgumentNullException("serviceHost");
}
if (contractType == null)
{
throw new ArgumentNullException("contractType");
}
if (container == null)
{
throw new ArgumentNullException("container");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
var serviceBehavior = serviceHost.Description.Behaviors.Find <ServiceBehaviorAttribute>();
if (serviceBehavior != null && serviceBehavior.InstanceContextMode == InstanceContextMode.Single)
{
return;
}
IComponentRegistration registration;
var serviceToResolve = new TypedService(contractType);
if (!container.ComponentRegistry.TryGetRegistration(serviceToResolve, out registration))
{
var message = string.Format(CultureInfo.CurrentCulture, ServiceHostExtensionsResources.ContractTypeNotRegistered, contractType.FullName);
throw new ArgumentException(message, "contractType");
}
var data = new ServiceImplementationData
{
ConstructorString = contractType.AssemblyQualifiedName,
ServiceTypeToHost = contractType,
ImplementationResolver = l => l.ResolveComponent(new ResolveRequest(serviceToResolve, registration, parameters))
};
var behavior = new AutofacDependencyInjectionServiceBehavior(container, data);
serviceHost.Description.Behaviors.Add(behavior);
}
public void Dispose_InstancesDisposed()
{
var builder = new ContainerBuilder();
builder.RegisterType<DisposeTracker>();
var container = builder.Build();
var impData = new ServiceImplementationData()
{
ConstructorString = "TestService",
ServiceTypeToHost = typeof(DisposeTracker),
ImplementationResolver = l => l.Resolve<DisposeTracker>()
};
var context = new AutofacInstanceContext(container);
var disposable = (DisposeTracker)context.Resolve(impData);
Assert.IsFalse(disposable.IsDisposedPublic);
context.Dispose();
Assert.IsTrue(disposable.IsDisposedPublic);
}
public void Ctor_RequiresContainer()
{
var data = new ServiceImplementationData();
Assert.Throws<ArgumentNullException>(() => new AutofacInstanceProvider(null, data));
}
public void Ctor_RequiresContainer()
{
var data = new ServiceImplementationData();
Assert.Throws<ArgumentNullException>(() => new AutofacDependencyInjectionServiceBehavior(null, data));
}