Model GUI Logic using MVP, Pub-Sub/State Pattern and XML

using System;
using System.Xml.Serialization;
using System.IO;

using GUIStateMVP.Model;

namespace GUIStateMVP
{
	/// <summary>
	/// Loads logic definition file (xml), and responds to presenter for form logic
	/// </summary>
	public class LogicController : ILogicController
	{
		private FormLogic fl  = null;
		private IView _view;

		public LogicController(IView view)
		{
			Init();
			_view = view;
		}

		/// <summary>
		/// Loads xml file into object model
		/// </summary>
		private void Init()
		{
			FileStream fs = new FileStream("FormStateEvent.xml", FileMode.Open);
			try
			{
				XmlSerializer se = new XmlSerializer(typeof(FormLogic));
				object x = se.Deserialize(fs);
				fl = x as FormLogic;
			}
			catch(Exception ex)
			{
				Console.Out.WriteLine(ex.Message);
			}

		}
		//Set View's inttial state
		public void InitView()
		{
			//Hard code view initial state here, it can be moved to xml as well
			IState initState = FindState("BooleanTrue", false);
			_view.UpdateFieldState("Simpsons", initState);

			initState = FindState("MembersOptionSimpsons", false);
			_view.UpdateFieldState("Members", initState);
		}

		#region ILogicController Members

		/// <summary>
		/// Controller will parse through the logic table, trigger all the subscriber of current publish if
		/// state is match. 
		/// Todo: subscriber can also become publisher to start a chain of events. So this method 
		/// could be called recursively.  But the original publisher cannot become a subscriber, which is to
		/// prevent circulor event.
		/// </summary>
		/// <param name="subject"></param>
		public void RaiseEvent(string subject)
		{
			//Create an empty state type base on xml file definition

			foreach(Event e in fl.Events.Event)
			{
				if(e.pubs[0].Sub == subject)
				{
					string stateName = e.pubs[0].State;
					IState curState = FindState(stateName, true);
					//Get publisher's current state
					_view.GetFieldState(subject, curState);

					//If publisher's state statisfy the condition
					if(FindState(stateName, false).Equals(curState))
					{
						//Set state for each subscriber
						foreach(Subscriber subscriber in e.subs)
						{
							IState state = FindState(subscriber.State, false);
							if(state != null)
							{
								//Update state in subscriber
								_view.UpdateFieldState(subscriber.Obj, state);
							}
						}
					}
				}
			}
		}
		#endregion
		/// <summary>
		/// Return IState object based on searching
		/// </summary>
		/// <param name="name"></param>
		/// <returns></returns>
		protected IState FindState(string name, bool empty)
		{
			foreach(State state in fl.States.State)
			{
				if(state.Name == name)
				{
					if(empty)
					{
						return state.GetEmptyState();
					}
					else
					{
						return state.InnerState;
					}
				}
			}
			return null;
		}


	}
}