private bool Modify(KnowledgeBase knowledgeBase)
{
if (systemIdentifier == Identifier.Unique)
{
SystemIdentifier = knowledgeBase.Commands.GenerateUniqueSysIdentifier(Address, prefix);
}
return(knowledgeBase.Commands.SetSysIdentifier(Address, SystemIdentifier));
}
internal static Node Load(KnowledgeBase knowledgeBase, ScAddress scAddress)
{
var node = new Node(ElementType.Unknown, Identifier.Invalid);
if (knowledgeBase.Commands.IsElementExist(scAddress))
{
node.Address = scAddress;
node.SystemIdentifier = knowledgeBase.Commands.GetNodeSysIdentifier(scAddress);
node.Type = knowledgeBase.Commands.GetElementType(scAddress);
node.State = ElementState.Synchronized;
}
return(node);
}
internal static Link Load(KnowledgeBase knowledgeBase, ScAddress scAddress)
{
var link = new Link(LinkContent.Invalid);
if (knowledgeBase.Commands.IsElementExist(scAddress))
{
ElementType type = knowledgeBase.Commands.GetElementType(scAddress);
if (type.IsType(ElementType.Link_a))
{
link.Address = scAddress;
link.LinkContent = knowledgeBase.Commands.GetLinkContent(scAddress);
link.Type = ElementType.Link_a;
link.State = ElementState.Synchronized;
}
}
return(link);
}
internal static Type GetElementType(KnowledgeBase knowledgeBase, ScAddress scAddress)
{
ElementType type = knowledgeBase.Commands.GetElementType(scAddress);
if (type.HasAnyType(ElementType.ArcMask_c))
{
return(typeof(Arc));
}
if (type.IsType(ElementType.Link_a))
{
return(typeof(Link));
}
else
{
return(typeof(Node));
}
}
internal static ElementBase LoadElement(KnowledgeBase knowledgeBase, ScAddress scAddress)
{
ElementBase loadedElement = null;
if (GetElementType(knowledgeBase, scAddress) == typeof(Node))
{
loadedElement = Node.Load(knowledgeBase, scAddress);
}
if (GetElementType(knowledgeBase, scAddress) == typeof(Link))
{
loadedElement = Link.Load(knowledgeBase, scAddress);
}
if (GetElementType(knowledgeBase, scAddress) == typeof(Arc))
{
loadedElement = Arc.Load(knowledgeBase, scAddress);
}
return(loadedElement);
}
internal override bool Save(KnowledgeBase knowledgeBase)
{
#warning Непрозрачная логика метода. Можно одновременно создать, отредактировать и удалить. Confusing зело.
#warning Вынести в родительский класс, так как дублирование кода.
bool isSaved = false;
if (State.HasAnyState(ElementState.New))
{
CreateNew(knowledgeBase);
State = State.RemoveState(ElementState.New);
}
if (State.HasAnyState(ElementState.Edited))
{
Modify(knowledgeBase);
State = State.RemoveState(ElementState.Edited);
}
if (State.HasAnyState(ElementState.Deleted))
{
Delete(knowledgeBase);
State = State.RemoveState(ElementState.Deleted);
}
State = State.AddState(ElementState.Synchronized);
return(isSaved);
}
internal static Arc Load(KnowledgeBase knowledgeBase, ScAddress scAddress)
{
Arc arc = null;
if (knowledgeBase.Commands.IsElementExist(scAddress))
{
ElementType type = knowledgeBase.Commands.GetElementType(scAddress);
if (type.HasAnyType(ElementType.ArcMask_c))
{
#warning здесь возможна бесконечная цикла если элементы дуги тоже дуги бесконечно
var command = new GetArcElementsCommand(scAddress);
var response = (GetArcElementsResponse)knowledgeBase.ExecuteCommand(command);
var beginElement = LoadElement(knowledgeBase, response.BeginElementAddress);
var endElement = LoadElement(knowledgeBase, response.EndElementAddress);
arc = new Arc(type, beginElement, endElement)
{
Address = scAddress,
State = ElementState.Synchronized
};
}
}
return(arc);
}
private void CreateNew(KnowledgeBase knowledgeBase)
{
Address = knowledgeBase.Commands.CreateLink();
knowledgeBase.Commands.SetLinkContent(Address, linkContent);
}
/// <summary>
/// ctor.
/// </summary>
/// <param name="knowledgeBase">база знаний</param>
public Commands(KnowledgeBase knowledgeBase)
{
this.knowledgeBase = knowledgeBase;
}
private void CreateNew(KnowledgeBase knowledgeBase)
{
Address = knowledgeBase.Commands.CreateNode(Type);
}
private void CreateNew(KnowledgeBase knowledgeBase)
{
#warning См. комментарий.
//добавлять в соответствующие коллекции элементов перед использованием в виде вершин дуг
Address = knowledgeBase.Commands.CreateArc(Type, beginElement.Address, endElement.Address);
}
private static Node loadNode(KnowledgeBase knowledgeBase, ScAddress address)
{
return(Node.Load(knowledgeBase, address));
}
private static Link loadLink(KnowledgeBase knowledgeBase, ScAddress address)
{
return(Link.Load(knowledgeBase, address));
}
private static Arc loadArc(KnowledgeBase knowledgeBase, ScAddress address)
{
return(Arc.Load(knowledgeBase, address));
}
/// <summary>
/// ctor,
/// </summary>
/// <param name="knowledgeBase">база знаний</param>
internal ElementCollection(KnowledgeBase knowledgeBase)
{
this.knowledgeBase = knowledgeBase;
objectsCache = new Dictionary <ScAddress, T>();
}
private bool Modify(KnowledgeBase knowledgeBase)
{
return(knowledgeBase.Commands.SetLinkContent(Address, linkContent));
}
private bool Delete(KnowledgeBase knowledgeBase)
{
return(knowledgeBase.Commands.DeleteElement(Address));
}
/// <summary> /// Сохранение. /// </summary> /// <param name="knowledgeBase">база знаний</param> /// <returns><b>true</b>, если сохранено успешно, иначе - <b>false</b></returns> internal abstract bool Save(KnowledgeBase knowledgeBase);