/// <summary>
/// init方法和Release方法
/// </summary>
/// <typeparam name="TReflectionActivatorData"></typeparam>
/// <typeparam name="TSingleRegistrationStyle"></typeparam>
/// <param name="component"></param>
/// <param name="registrar"></param>
protected virtual void RegisterMethods <TReflectionActivatorData, TSingleRegistrationStyle>(ComponentModel component,
IRegistrationBuilder <object, TReflectionActivatorData, TSingleRegistrationStyle> registrar)
where TReflectionActivatorData : ReflectionActivatorData
where TSingleRegistrationStyle : SingleRegistrationStyle
{
MethodInfo AssertMethod(Type type, string methodName)
{
var emethodName = methodName.Contains(".") ? methodName.Split('.').LastOrDefault() : methodName;
MethodInfo method = null;
try
{
BindingFlags flags = BindingFlags.Public |
BindingFlags.NonPublic |
BindingFlags.Static |
BindingFlags.Instance |
BindingFlags.DeclaredOnly;
method = type.GetMethod(emethodName, flags);
}
catch (Exception)
{
//如果有多个就抛出异常
throw new DependencyResolutionException($"find method: {methodName} in type:{type.FullName} have more then one");
}
if (method == null)
{
throw new DependencyResolutionException($"find method: {methodName} in type:{type.FullName} error");
}
return(method);
}
if (component == null)
{
throw new ArgumentNullException(nameof(component));
}
if (registrar == null)
{
throw new ArgumentNullException(nameof(registrar));
}
if (!string.IsNullOrEmpty(component.InitMethod))
{
var method = AssertMethod(component.CurrentType, component.InitMethod);
registrar.OnActivated(e => { AutoConfigurationHelper.InvokeInstanceMethod(e.Instance, method, e.Context); });
}
if (!string.IsNullOrEmpty(component.DestroyMethod))
{
var method = AssertMethod(component.CurrentType, component.DestroyMethod);
if (method.GetParameters().Any())
{
throw new DependencyResolutionException($"class `{component.CurrentType.FullName}` DestroyMethod `{component.DestroyMethod}` must be no parameters");
}
registrar.OnRelease(e => { method.Invoke(e, null); });
}
}
private static void RegisterConfiguration(ContainerBuilder builder, AutoConfigurationDetail autoConfigurationDetail)
{
//注册为工厂
foreach (var beanMethod in autoConfigurationDetail.BeanMethodInfoList)
{
if (!beanMethod.Item2.IsVirtual)
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` must be virtual!");
}
if (!ProxyUtil.IsAccessible(beanMethod.Item2.ReturnType))
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` returnType is not accessible!");
}
if (beanMethod.Item2.ReturnType.IsValueType || beanMethod.Item2.ReturnType.IsEnum)
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` returnType is invalid!");
}
//包装这个方法成功工厂
//先拿到AutoConfiguration class的实例
//注册一个方法到容器 拿到并传入IComponentContext
builder.RegisterCallback(cr =>
{
var instanceType = beanMethod.Item3;//返回类型
var rb = RegistrationBuilder.ForDelegate(instanceType, ((context, parameters) =>
{
var autoConfigurationInstance = context.Resolve(autoConfigurationDetail.AutoConfigurationClassType);
var instance = AutoConfigurationHelper.InvokeInstanceMethod(context, autoConfigurationDetail, autoConfigurationInstance, beanMethod.Item2);
if (typeof(Task).IsAssignableFrom(instance.GetType()))
{
return(typeof(Task <>).MakeGenericType(instanceType).GetProperty("Result").GetValue(instance));
}
return(instance);
}));
if (!string.IsNullOrEmpty(beanMethod.Item1.Key))
{
rb.Keyed(beanMethod.Item1.Key, instanceType).Named("`1System.Collections.Generic.IEnumerable`1" + instanceType.FullName, instanceType);
}
else
{
rb.As(instanceType).Named("`1System.Collections.Generic.IEnumerable`1" + instanceType.FullName, instanceType);
}
rb.SingleInstance();
RegistrationBuilder.RegisterSingleComponent(cr, rb);
});
}
}
/// <summary>
/// 执行自动注册
/// </summary>
/// <param name="context"></param>
public void Start(IComponentContext context)
{
lock (this)
{
context.TryResolve <AutoConfigurationList>(out var autoConfigurationList);
if (autoConfigurationList == null || autoConfigurationList.AutoConfigurationDetailList == null || !autoConfigurationList.AutoConfigurationDetailList.Any())
{
return;
}
foreach (var autoConfigurationDetail in autoConfigurationList.AutoConfigurationDetailList)
{
context.TryResolve(autoConfigurationDetail.AutoConfigurationClassType, out var autoConfigurationInstance);
if (autoConfigurationInstance == null)
{
continue;
}
foreach (var beanMethod in autoConfigurationDetail.BeanMethodInfoList)
{
if (beanMethod.Item2.IsVirtual)
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` can not be virtual!");
}
if (beanMethod.Item2.GetParameters().Length != 0)
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` can only none parameters!");
}
if (!ProxyUtil.IsAccessible(beanMethod.Item2.ReturnType))
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` returnType is not accessible!");
}
if (beanMethod.Item2.ReturnType.IsValueType || beanMethod.Item2.ReturnType.IsEnum)
{
throw new InvalidOperationException(
$"The Configuration class `{autoConfigurationDetail.AutoConfigurationClassType.FullName}` method `{beanMethod.Item2.Name}` returnType is invalid!");
}
var result = beanMethod.Item2.Invoke(autoConfigurationInstance, null);
if (result == null)
{
continue;
}
context.ComponentRegistry.Register(AutoConfigurationHelper.RegisterInstance(context.ComponentRegistry, beanMethod.Item2.ReturnType, result, beanMethod.Item1.Key).CreateRegistration());
}
}
}
}
