public virtual T Instance <T>() where T : class, IPlugin
{
var scope = AutofacDependencyResolver.Current.RequestLifetimeScope;
if (!scope.TryResolve(PluginType, out var instance))
{
//not resolved
var constructors = PluginType.GetConstructors();
foreach (var constructor in constructors)
{
try
{
var parameters = constructor.GetParameters();
var parameterInstances = new List <object>();
foreach (var parameter in parameters)
{
var service = scope.Resolve(parameter.ParameterType);
if (service == null)
{
throw new Exception($"Plugin Unknown Dependency ({FriendlyName})");
}
parameterInstances.Add(service);
}
instance = Activator.CreateInstance(PluginType, parameterInstances.ToArray());
break;
}
catch
{}
}
}
if (instance == null)
{
throw new Exception($"No constructor was found that had all the dependencies satisfied ({FriendlyName})");
}
var typedInstance = instance as T;
if (typedInstance != null)
{
typedInstance.PluginDescriptor = this;
}
return(typedInstance);
}
