/// <summary>
/// 是否相容的周期
/// </summary>
/// <param name="current">当前周期</param>
/// <param name="target">目标周期</param>
/// <returns></returns>
public static string Compatible(this RegisterRule target, RegisterRule current)
{
switch (current.LifeStyle)
{
/*单例可以注入到任何实例中，其构造只能是单例对象*/
case ComponentLifeStyle.Singleton:
{
return(string.Empty);
}
/*短暂只能注入到短暂，其构造可接受任何实例对象*/
case ComponentLifeStyle.Transient:
{
if (target.LifeStyle != ComponentLifeStyle.Transient)
{
return(string.Format("构建当前对象{0}为{1}，期望对象{2}为短暂，不能相容",
target.ServiceType.FullName,
target.LifeStyle == ComponentLifeStyle.Scoped ? "作用域" : "单例",
current.ServiceType.FullName));
}
return(string.Empty);
}
/*作用域其构造不能接受短暂，可接受有作用域和单例*/
case ComponentLifeStyle.Scoped:
{
if (target.LifeStyle == ComponentLifeStyle.Singleton)
{
return(string.Format("构建当前对象{0}为单例，期望对象{1}为作用域，不能相容",
target.ServiceType.FullName,
current.ServiceType.FullName));
}
return(string.Empty);
}
}
return(string.Empty);
}
/// <summary>
/// 最优匹配
/// </summary>
/// <param name="topRule"></param>
/// <param name="collection"></param>
/// <returns></returns>
internal static RegisterRule LastCompatible(this RegisterRule topRule, IEnumerable <RegisterRule> collection)
{
if (collection == null)
{
return(null);
}
for (var i = collection.Count() - 1; i >= 0; i--)
{
var rule = collection.ElementAt(i);
if (rule.Builded || rule.OptionalBuilded)
{
return(rule);
}
if ((rule.ImplementationType.IsInterface || rule.ImplementationType.IsAbstract))
{
continue;
}
}
return(collection.LastOrDefault());
}
private void RegisterRule(RegisterRule <TWorkspace, TData> obj)
{
var rule = obj.Rule;
rule.Init(Context, _workspace);
}
/// <summary>
/// 最优匹配
/// </summary>
/// <param name="topRule"></param>
/// <param name="collection"></param>
/// <returns></returns>
internal static RegisterRule OptionalCompatible(this RegisterRule topRule, IEnumerable <RegisterRule> collection)
{
if (collection == null)
{
return(null);
}
switch (topRule.LifeStyle)
{
case ComponentLifeStyle.Singleton:
{
var first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.LifeStyle == ComponentLifeStyle.Singleton && o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.LifeStyle == ComponentLifeStyle.Singleton);
if (first != null)
{
return(first);
}
first = first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.LifeStyle == ComponentLifeStyle.Scoped);
if (first != null)
{
return(first);
}
}
break;
case ComponentLifeStyle.Scoped:
{
var first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.LifeStyle == ComponentLifeStyle.Singleton && o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.LifeStyle == ComponentLifeStyle.Scoped && o.Builded);
if (first != null)
{
return(first);
}
first = first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.LifeStyle != ComponentLifeStyle.Transient);
if (first != null)
{
return(first);
}
}
break;
case ComponentLifeStyle.Transient:
{
var first = collection.FirstOrDefault(o => o.Key.IsNullOrEmpty() && o.Builded);
if (first != null)
{
return(first);
}
}
break;
}
switch (topRule.LifeStyle)
{
case ComponentLifeStyle.Singleton:
{
var first = collection.FirstOrDefault(o => o.LifeStyle == ComponentLifeStyle.Singleton && o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.LifeStyle == ComponentLifeStyle.Singleton);
if (first != null)
{
return(first);
}
first = first = collection.FirstOrDefault(o => o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.LifeStyle == ComponentLifeStyle.Scoped);
if (first != null)
{
return(first);
}
return(collection.FirstOrDefault());
}
case ComponentLifeStyle.Scoped:
{
var first = collection.FirstOrDefault(o => o.LifeStyle == ComponentLifeStyle.Singleton && o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.LifeStyle == ComponentLifeStyle.Scoped && o.Builded);
if (first != null)
{
return(first);
}
first = first = collection.FirstOrDefault(o => o.Builded);
if (first != null)
{
return(first);
}
first = collection.FirstOrDefault(o => o.LifeStyle != ComponentLifeStyle.Transient);
if (first != null)
{
return(first);
}
return(collection.FirstOrDefault());
}
case ComponentLifeStyle.Transient:
{
var first = collection.FirstOrDefault(o => o.Builded);
if (first != null)
{
return(first);
}
return(collection.FirstOrDefault());
}
}
return(null);
}
