private void InitConfigurations()
{
if (_extendConfigurations == null)
{
/*********************** 代码块解释 *********************************
* 查找所有 EntityConfig 类型，并根据是否为扩展视图的配置类，
* 分别加入到两个不同的列表中。
**********************************************************************/
var defaultRepo = new Dictionary <Type, List <TViewConfig> >(100);
var extendRepo = new Dictionary <ExtendTypeKey, List <TViewConfig> >(100);
var entityType = typeof(TViewConfig);
//视图配置可以放在所有插件中。
for (int index = 0, c = RafyEnvironment.AllPlugins.Count; index < c; index++)
{
var plugin = RafyEnvironment.AllPlugins[index];
foreach (var type in plugin.Assembly.GetTypes())
{
if (!type.IsGenericTypeDefinition && !type.IsAbstract && entityType.IsAssignableFrom(type))
{
var config = Activator.CreateInstance(type) as TViewConfig;
config.PluginIndex = index;
config.InheritanceCount = TypeHelper.GetHierarchy(type, typeof(ManagedPropertyObject)).Count();
List <TViewConfig> typeList = null;
if (config.ExtendView == null)
{
if (!defaultRepo.TryGetValue(config.EntityType, out typeList))
{
typeList = new List <TViewConfig>(2);
defaultRepo.Add(config.EntityType, typeList);
}
}
else
{
var key = new ExtendTypeKey {
EntityType = config.EntityType, ExtendView = config.ExtendView
};
if (!extendRepo.TryGetValue(key, out typeList))
{
typeList = new List <TViewConfig>(2);
extendRepo.Add(key, typeList);
}
}
typeList.Add(config);
}
}
}
_configurations = defaultRepo;
_extendConfigurations = extendRepo;
}
}
/// <summary>
/// 获取某个实体视图的所有配置类实例
/// </summary>
/// <param name="entityType"></param>
/// <param name="extendView">如果想获取扩展视图列表，则需要传入指定的扩展视图列表</param>
/// <returns></returns>
internal IEnumerable <TViewConfig> FindViewConfigurations(Type entityType, string extendView = null)
{
InitConfigurations();
var hierachy = TypeHelper.GetHierarchy(entityType, typeof(ManagedPropertyObject)).Reverse();
if (extendView == null)
{
foreach (var type in hierachy)
{
List <TViewConfig> configList = null;
if (_configurations.TryGetValue(type, out configList))
{
var orderedList = configList.OrderBy(o => o.PluginIndex).ThenBy(o => o.InheritanceCount);
foreach (var config in orderedList)
{
yield return(config);
}
}
}
}
else
{
foreach (var type in hierachy)
{
var key = new ExtendTypeKey {
EntityType = type, ExtendView = extendView
};
List <TViewConfig> configList = null;
if (_extendConfigurations.TryGetValue(key, out configList))
{
var orderedList = configList.OrderBy(o => o.PluginIndex).ThenBy(o => o.InheritanceCount);
foreach (var config in orderedList)
{
yield return(config);
}
}
}
}
}
