private static IEnumerable<StateWrapper> GetStateWrappers(List<Dialog> dialogs, State state)
{
return from d in dialogs
from s in d.States
where s.State == state
select s;
}
private IEnumerable<State> GetPredecessors(State state, bool includeSelf)
{
foreach (State predecessor in state.Predecessors)
{
if (!RemovedTransitions.Contains(Transition.GetLink(predecessor, state)))
{
if (includeSelf || predecessor != state)
yield return predecessor;
}
}
}
private IEnumerable<State> GetPredecessors(State state)
{
return GetPredecessors(state, false);
}
private IEnumerable<StateWrapper> GetStateWrappers(State state)
{
return (
from d in Dialogs
from s in d.States
where s.State == state
select s
);
}
private void CreateTransitions(IEnumerable<State> predecessors, State state)
{
Transition transition;
foreach (State predecessor in predecessors)
{
transition = Transition.GetLink(predecessor, state);
foreach (StateWrapper sw in GetStateWrappers(predecessor).ToList())
TransitionCreated = sw.AddTransition(transition.Key, state, transition.Order) || TransitionCreated;
}
}
private void CreateDialog(State state)
{
if (Dialogs.Where(d => d.Initial == state).FirstOrDefault() == null)
Dialogs.Add(new Dialog(state));
}
public Dialog(State initial)
{
Initial = initial;
AddState(new StateWrapper(initial, this));
}
private static void WriteChildElements(DslModeling::SerializationContext serializationContext, State element, global::System.Xml.XmlWriter writer)
{
// Transition
global::System.Collections.ObjectModel.ReadOnlyCollection<Transition> allTransitionInstances = Transition.GetLinksToSuccessors(element);
if (!serializationContext.Result.Failed && allTransitionInstances.Count > 0)
{
writer.WriteStartElement("successors");
foreach (Transition eachTransitionInstance in allTransitionInstances)
{
if (serializationContext.Result.Failed)
break;
DslModeling::DomainClassXmlSerializer relSerializer = serializationContext.Directory.GetSerializer(eachTransitionInstance.GetDomainClass().Id);
global::System.Diagnostics.Debug.Assert(relSerializer != null, "Cannot find serializer for " + eachTransitionInstance.GetDomainClass().Name + "!");
relSerializer.Write(serializationContext, eachTransitionInstance, writer);
}
writer.WriteEndElement();
}
}
private static IEnumerable<StateWrapper> GetStateWrappersCanNavigateTo(List<Dialog> dialogs, State state, State successor)
{
return from sw in GetStateWrappers(dialogs, state)
where sw.CanNavigateTo(successor, Transition.GetLink(state, successor).Key)
select sw;
}
private static void ReadTransitionInstances(DslModeling::SerializationContext serializationContext, State element, global::System.Xml.XmlReader reader)
{
while (!serializationContext.Result.Failed && !reader.EOF && reader.NodeType == global::System.Xml.XmlNodeType.Element)
{
DslModeling::DomainClassXmlSerializer newTransitionSerializer = serializationContext.Directory.GetSerializer(Transition.DomainClassId);
global::System.Diagnostics.Debug.Assert(newTransitionSerializer != null, "Cannot find serializer for Transition!");
Transition newTransition = newTransitionSerializer.TryCreateInstance (serializationContext, reader, element.Partition) as Transition;
if (newTransition != null)
{
DslModeling::DomainRoleInfo.SetRolePlayer (newTransition, Transition.PredecessorDomainRoleId, element);
DslModeling::DomainClassXmlSerializer targetSerializer = serializationContext.Directory.GetSerializer (newTransition.GetDomainClass().Id);
global::System.Diagnostics.Debug.Assert (targetSerializer != null, "Cannot find serializer for " + newTransition.GetDomainClass().Name + "!");
targetSerializer.Read(serializationContext, newTransition, reader);
}
else
{ // Maybe the relationship is serialized in short-form by mistake.
DslModeling::DomainClassXmlSerializer newStateMonikerOfTransitionSerializer = serializationContext.Directory.GetSerializer(State.DomainClassId);
global::System.Diagnostics.Debug.Assert(newStateMonikerOfTransitionSerializer != null, "Cannot find serializer for State!");
DslModeling::Moniker newStateMonikerOfTransition = newStateMonikerOfTransitionSerializer.TryCreateMonikerInstance(serializationContext, reader, element, Transition.DomainClassId, element.Partition);
if (newStateMonikerOfTransition != null)
{
NavigationLanguageSerializationBehaviorSerializationMessages.ExpectingFullFormRelationship(serializationContext, reader, typeof(Transition));
new Transition(element.Partition, new DslModeling::RoleAssignment(Transition.PredecessorDomainRoleId, element), new DslModeling::RoleAssignment(Transition.SuccessorDomainRoleId, newStateMonikerOfTransition));
DslModeling::SerializationUtilities.Skip(reader); // Moniker contains no child XML elements, so just skip.
}
else
{ // Unknown element, skip.
DslModeling::SerializationUtilities.Skip(reader);
}
}
}
}
/// <summary>
/// This method deserializes all child model elements.
/// </summary>
/// <remarks>
/// The caller will position the reader at the open tag of the first child XML element to deserialized.
/// This method will read as many child elements as it can. It returns under three circumstances:
/// 1) When an unknown child XML element is encountered. In this case, this method will position the reader at the
/// open tag of the unknown element. This implies that if the first child XML element is unknown, this method
/// should return immediately and do nothing.
/// 2) When all child XML elemnets are read. In this case, the reader will be positioned at the end tag of the parent element.
/// 3) EOF.
/// </remarks>
/// <param name="serializationContext">Serialization context.</param>
/// <param name="reader">XmlReader to read serialized data from.</param>
/// <param name="element">In-memory State instance that will get the deserialized data.</param>
private static void ReadChildElements(DslModeling::SerializationContext serializationContext, State element, global::System.Xml.XmlReader reader)
{
if (!serializationContext.Result.Failed && !reader.EOF && reader.NodeType == global::System.Xml.XmlNodeType.Element)
{
if (string.Compare(reader.LocalName, "successors", global::System.StringComparison.CurrentCulture) == 0)
{
if (reader.IsEmptyElement)
{ // No instance of this relationship, just skip
DslModeling::SerializationUtilities.Skip(reader);
}
else
{
DslModeling::SerializationUtilities.SkipToFirstChild(reader); // Skip the open tag of <successors>
ReadTransitionInstances(serializationContext, element, reader);
DslModeling::SerializationUtilities.Skip(reader); // Skip the close tag of </successors>
}
}
}
}
public bool CanNavigateTo(State state, string key)
{
return Transitions.Where(t => t.To.State == state && (key != null ? t.Key == key : true)).FirstOrDefault() != null;
}
public bool AddTransition(string key, State to, int order)
{
if (!CanNavigateTo(to, null))
{
Transitions.Add(new TransitionWrapper(key, Parent.AddState(new StateWrapper(to, Parent)), this, order));
return true;
}
return false;
}
public StateWrapper(State state, Dialog parent)
{
State = state;
Parent = parent;
Route = state.Route;
}
