public static bool TryCreate(ContainerService.Builder builder)
{
var factoryType = builder.Type.GetNestedType("Factory");
if (factoryType == null)
{
return(false);
}
var method = factoryType.GetMethod("Create", Type.EmptyTypes);
if (method == null)
{
return(false);
}
var factory = builder.Context.Container.Resolve(method.DeclaringType, InternalHelpers.emptyStrings, false);
if (factory.IsOk())
{
builder.CreateInstanceBy(CallTarget.M(method, factory.Single(), new object[0]), true);
}
return(true);
}
private void InstantiateImplementation(ContainerService.Builder builder)
{
if (builder.DontUse())
{
builder.SetComment("DontUse");
return;
}
var result = FactoryCreator.TryCreate(builder) ?? LazyCreator.TryCreate(builder);
if (result != null)
{
builder.AddInstance(result, true, false);
return;
}
if (NestedFactoryCreator.TryCreate(builder))
{
return;
}
if (CtorFactoryCreator.TryCreate(builder))
{
return;
}
if (builder.Type.IsDelegate())
{
builder.SetError(string.Format("can't create delegate [{0}]", builder.Type.FormatName()));
return;
}
var constructor = builder.Type.GetConstructor();
if (!constructor.isOk)
{
builder.SetError(constructor.errorMessage);
return;
}
var formalParameters = constructor.value.GetParameters();
var actualArguments = new object[formalParameters.Length];
var hasServiceNameParameters = false;
for (var i = 0; i < formalParameters.Length; i++)
{
var formalParameter = formalParameters[i];
if (formalParameter.ParameterType == typeof(ServiceName))
{
hasServiceNameParameters = true;
continue;
}
var dependency = InstantiateDependency(formalParameter, builder).CastTo(formalParameter.ParameterType);
builder.AddDependency(dependency, false);
if (dependency.ContainerService != null)
{
builder.UnionUsedContracts(dependency.ContainerService);
}
if (builder.Status != ServiceStatus.Ok && !builder.Context.AnalizeDependenciesOnly)
{
return;
}
actualArguments[i] = dependency.Value;
}
foreach (var d in builder.Configuration.ImplicitDependencies)
{
var dependency = ResolveCore(ServiceName.Parse(d.Type, d.Contracts), false, null, builder.Context)
.AsDependency(containerContext, null, false);
dependency.Comment = "implicit";
builder.AddDependency(dependency, false);
if (dependency.ContainerService != null)
{
builder.UnionUsedContracts(dependency.ContainerService);
}
if (builder.Status != ServiceStatus.Ok)
{
return;
}
}
builder.EndResolveDependencies();
if (builder.Context.AnalizeDependenciesOnly)
{
return;
}
var dependenciesResolvedByArguments = builder.Arguments == null ? null : builder.Arguments.GetUsed();
List <string> unusedConfigurationKeys = null;
foreach (var k in builder.Configuration.GetUnusedDependencyKeys())
{
var resolvedByArguments = dependenciesResolvedByArguments != null &&
k.name != null &&
dependenciesResolvedByArguments.Contains(k.name);
if (resolvedByArguments)
{
continue;
}
if (unusedConfigurationKeys == null)
{
unusedConfigurationKeys = new List <string>();
}
unusedConfigurationKeys.Add(k.ToString());
}
if (unusedConfigurationKeys != null)
{
builder.SetError(string.Format("unused dependency configurations [{0}]", unusedConfigurationKeys.JoinStrings(",")));
return;
}
if (hasServiceNameParameters)
{
for (var i = 0; i < formalParameters.Length; i++)
{
if (formalParameters[i].ParameterType == typeof(ServiceName))
{
actualArguments[i] = builder.GetFinalName();
}
}
}
if (builder.CreateNew || builder.DeclaredContracts.Length == builder.FinalUsedContracts.Length)
{
builder.CreateInstanceBy(CallTarget.M(constructor.value, null, actualArguments), true);
if (builder.CreateNew && builder.Arguments == null)
{
var compiledConstructor = constructor.value.Compile();
factoryCache.TryAdd(builder.GetFinalName(), () =>
{
var instance = compiledConstructor(null, actualArguments);
var component = instance as IInitializable;
if (component != null)
{
component.Initialize();
}
return(instance);
});
}
return;
}
var serviceForUsedContractsId = instanceCache.GetOrAdd(builder.GetFinalName(), createId);
var acquireResult = serviceForUsedContractsId.AcquireInstantiateLock();
if (acquireResult.acquired)
{
builder.CreateInstanceBy(CallTarget.M(constructor.value, null, actualArguments), true);
serviceForUsedContractsId.ReleaseInstantiateLock(builder.Context.AnalizeDependenciesOnly
? null
: builder.GetService());
}
else
{
builder.Reuse(acquireResult.alreadyConstructedService);
}
}
