/// <summary>
/// <para>初始化与领域对象相关的行为，由于许多行为是第一次使用对象的时候才触发，这样会导致没有使用对象却需要一些额外特性的时候缺少数据</para>
/// <para>所以我们需要在使用领域驱动的之前执行初始化操作</para>
/// </summary>
internal static void Initialize()
{
if (_initialized)
{
return;
}
_initialized = true;
//以下代码执行顺序不能变
TypeIndex = GetTypeIndex();
//指定动态类型的定义
RemoteType.Initialize();
//执行远程能力特性的初始化，收集相关数据
RemotableAttribute.Initialize();
//触发没有派生类的领域对象的静态构造
foreach (var objectType in TypeIndex)
{
if (DerivedClassAttribute.IsDerived(objectType))
{
continue; //不执行派生类的
}
DomainObject.StaticConstructor(objectType);
}
//先执行派生类的
DerivedClassAttribute.Initialize();
//再执行扩展的
ExtendedClassAttribute.Initialize();
}
public static void NotifyDeleted(RemoteType remoteType, object id)
{
var arg = CreateEventArg(remoteType, id);
var eventName = RemoteObjectDeleted.GetEventName(remoteType);
EventPortal.Publish(eventName, arg);
}
private static DTObject CreateEventArg(RemoteType remoteType, object id)
{
var arg = DTObject.CreateReusable();
arg["identity"] = AppContext.Identity;
arg["typeName"] = remoteType.FullName;
arg["id"] = id;
return(arg);
}
private static void SubscribeEvents()
{
var remoteTypes = RemoteType.GetTypes();
foreach (var remoteType in remoteTypes)
{
RemoteObjectUpdated.Subscribe(remoteType);
RemoteObjectDeleted.Subscribe(remoteType);
}
}
/// <summary>
/// 取消订阅
/// </summary>
private static void CancelEvents()
{
var remoteTypes = RemoteType.GetTypes();
foreach (var remoteType in remoteTypes)
{
//取消订阅对象被修改和删除的事件
RemoteObjectUpdated.Cancel(remoteType);
RemoteObjectDeleted.Cancel(remoteType);
}
}
protected void UseDefines(DTObject arg, Action <AggregateRootDefine, object> action)
{
var typeName = arg.GetValue <string>("typeName");
var defines = RemoteType.GetDefines(typeName);
foreach (var define in defines)
{
var idProperty = DomainProperty.GetProperty(define.MetadataType, EntityObject.IdPropertyName);
var id = DataUtil.ToValue(arg.GetValue(EntityObject.IdPropertyName), idProperty.PropertyType);
action((AggregateRootDefine)define, id);
}
}
private TypeDefine(string typeName, string metadataCode, TypeMetadata metadata, Type domainInterfaceType, Type objectType, string qualifiedName)
{
this.TypeName = typeName.FirstToUpper();
this.MetadataCode = metadataCode;
this.Metadata = metadata;
this.DomainInterfaceType = domainInterfaceType;
this.ObjectType = objectType;
this.Constructor = this.ObjectType.ResolveConstructor(typeof(TypeDefine), typeof(bool));
this.QualifiedName = qualifiedName;
InitMetadataType();
AddDefineIndex(typeName, this); //加入索引
this.RemoteType = GetRemoteType();
RemoteType.AddDefineIndex(this.RemoteType.FullName, this); //加入索引
}
private TypeDefine(string typeName, string metadataCode, TypeMetadata metadata, Type domainInterfaceType, Type objectType, string qualifiedName)
{
this.TypeName = typeName.FirstToUpper();
this.MetadataCode = metadataCode;
this.MetadataSchemaCode = DTObject.Create(metadataCode).GetSchemaCode(false, false);
this.Metadata = metadata;
this.DomainInterfaceType = domainInterfaceType;
this.ObjectType = objectType;
this.Constructor = this.ObjectType.ResolveConstructor(typeof(TypeDefine), typeof(bool));
this.QualifiedName = qualifiedName;
InitMetadataType();
this.RemoteType = GetRemoteType();
if (!IsIgnore(typeName, this))
{
AddDefineIndex(typeName, this); //加入索引
RemoteType.AddDefineIndex(this.RemoteType.FullName, this); //加入索引
}
}
public static void Cancel(RemoteType remoteType)
{
var eventName = GetEventName(remoteType);
EventPortal.Cancel(eventName);
}
public static void Subscribe(RemoteType remoteType)
{
var eventName = GetEventName(remoteType);
EventPortal.Subscribe(eventName, Handler);
}
public static string GetEventName(RemoteType remoteType)
{
return(string.Format("{0}Updated", remoteType.FullName));
}
/// <summary>
/// 通知对象已删除
/// </summary>
/// <param name="type"></param>
/// <param name="id"></param>
internal static void NotifyDeleted(RemoteType type, object id)
{
Implement.NotifyDeleted(type, id, _config.MembershipAddresses);
}
/// <summary>
/// 对象已删除
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static string ObjectDeleted(RemoteType type)
{
return(_getObjectDeleted(type));
}
public static string GetObject(RemoteType type)
{
return(_getObject(type));
}
/// <summary>
/// 通知对象已删除
/// </summary>
/// <param name="type"></param>
/// <param name="id"></param>
internal static void NotifyDeleted(RemoteType type, object id)
{
RemoteService.NotifyDeleted(type, id);
}