public ServiceProviderEngine(IEnumerable <ServiceDefintion> services, IDelegateServiceDefintionHandler defintionHandler)
{
SingletonCache = new ConcurrentDictionary <DelegateServiceDefintion, object>();
scopedCache = new ConcurrentDictionary <DelegateServiceDefintion, object>();
Defintions = new ServiceDefintionFactory(services, defintionHandler);
Root = this;
}
public ServiceProviderEngine(IServiceProviderEngine root)
{
SingletonCache = root.SingletonCache;
scopedCache = new ConcurrentDictionary <DelegateServiceDefintion, object>();
Defintions = root.Defintions;
Root = root;
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback); //实例化 DynamicServiceProviderEngine
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
#if IL_EMIT
case ServiceProviderMode.ILEmit:
_engine = new ILEmitServiceProviderEngine(serviceDescriptors, callback);
break;
#endif
case ServiceProviderMode.Expressions:
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new NotSupportedException(nameof(options.Mode));
}
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, IServiceProviderEngine engine, ServiceProviderOptions options)
{
_engine = engine;
if (options.ValidateScopes)
{
_engine.InitializeCallback(this);
_callSiteValidator = new CallSiteValidator();
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (ServiceDescriptor serviceDescriptor in serviceDescriptors)
{
try
{
_engine.ValidateService(serviceDescriptor);
}
catch (Exception e)
{
exceptions = exceptions ?? new List <Exception>();
exceptions.Add(e);
}
}
if (exceptions != null)
{
throw new AggregateException("Some services are not able to be constructed", exceptions.ToArray());
}
}
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Compiled:
_engine = new CompiledServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new ArgumentOutOfRangeException(nameof(options.Mode));
}
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
#if IL_EMIT
case ServiceProviderMode.ILEmit:
_engine = new ILEmitServiceProviderEngine(serviceDescriptors, callback);
break;
#endif
case ServiceProviderMode.Expressions:
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new NotSupportedException(nameof(options.Mode));
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (var serviceDescriptor in serviceDescriptors)
{
try
{
_engine.ValidateService(serviceDescriptor);
}
catch (Exception e)
{
exceptions = exceptions ?? new List <Exception>();
exceptions.Add(e);
}
}
if (exceptions != null)
{
throw new AggregateException("Some services are not able to be constructed", exceptions.ToArray());
}
}
}
internal InterceptableServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options, IInterceptingProxyFactory interceptingProxyFactory)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback, interceptingProxyFactory);
}
public static ServiceProvider BuildServiceProvider(this IServiceCollection services, ServiceProviderMode mode)
{
if (mode == ServiceProviderMode.Default)
{
return(services.BuildServiceProvider());
}
IServiceProviderEngine engine = mode switch
{
ServiceProviderMode.Dynamic => new DynamicServiceProviderEngine(services),
ServiceProviderMode.Runtime => new RuntimeServiceProviderEngine(services),
ServiceProviderMode.Expressions => new ExpressionsServiceProviderEngine(services),
ServiceProviderMode.ILEmit => new ILEmitServiceProviderEngine(services),
_ => throw new NotSupportedException()
};
return(new ServiceProvider(services, engine, ServiceProviderOptions.Default));
}
}
public ServiceScopeFactory(INamedServiceProvider provider)
{
engine = provider as IServiceProviderEngine;
}
public ServiceProvider(IServiceDefintions services)
{
engine = new ServiceProviderEngine(services, new DelegateServiceDefintionHandler(services));
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Default:
#if !NETCOREAPP
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
#else
if (RuntimeFeature.IsSupported("IsDynamicCodeCompiled"))
{
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
}
else
{
// Don't try to compile Expressions/IL if they are going to get interpreted
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
}
#endif
break;
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
#if IL_EMIT
case ServiceProviderMode.ILEmit:
_engine = new ILEmitServiceProviderEngine(serviceDescriptors, callback);
break;
#endif
case ServiceProviderMode.Expressions:
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new NotSupportedException(nameof(options.Mode));
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (ServiceDescriptor serviceDescriptor in serviceDescriptors)
{
try
{
_engine.ValidateService(serviceDescriptor);
}
catch (Exception e)
{
exceptions = exceptions ?? new List <Exception>();
exceptions.Add(e);
}
}
if (exceptions != null)
{
throw new AggregateException("Some services are not able to be constructed", exceptions.ToArray());
}
}
}
