private static ComponentAttribute ComponentDynamic(this Type component)
{
// The dynamic version is necessary when the component type was obtained using the type service
foreach (var attribute in component.GetCustomAttributes(true))
{
if (IsComponentMetadata(attribute.GetType()))
{
var componentAttribute = new ComponentAttribute();
foreach (var property in attribute.GetType().GetProperties(
BindingFlags.Instance |
BindingFlags.Public |
BindingFlags.GetProperty |
BindingFlags.SetProperty))
{
var componentAttributeProperty = componentAttribute.GetType().GetProperty(property.Name);
if (componentAttributeProperty != null && componentAttributeProperty.CanWrite)
{
componentAttributeProperty.SetValue(componentAttribute, property.GetValue(attribute, null), null);
}
}
return(componentAttribute);
}
}
return(null);
}
/// <summary>
/// 注册PropertySource
/// </summary>
/// <param name="component"></param>
/// <param name="configuration"></param>
private static void RegisterPropetySources(ComponentAttribute component, IConfiguration configuration, IServiceCollection services)
{
if (!typeof(PropertySourceAttribute).IsAssignableFrom(component.GetType()))
{
return;
}
var propertySource = component as PropertySourceAttribute;
var implementationType = propertySource.ImplementationType;
if (propertySource != null)
{
if (string.IsNullOrWhiteSpace(propertySource.Name))
{
propertySource.Name = propertySource.ImplementationType.Name; // 默认使用类名称作为配置节点Key.
}
var section = configuration.GetSection(propertySource.Name);
if (!section.Exists() && !propertySource.IgnoreResourceNotFound)
{
throw new ArgumentNullException($"PropertySource:{propertySource.Name}");
}
var instance = Activator.CreateInstance(implementationType);
configuration.Bind(propertySource.Name, instance);
component.Instance = instance;
}
}