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package be.unamur.transitionsystem.fts;

/*
 * #%L vibes-core %% Copyright (C) 2014 PReCISE, University of Namur %%
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE. #L%
 */

import java.util.Iterator;

import be.unamur.fts.fexpression.Constant;
import be.unamur.fts.fexpression.FExpression;
import be.unamur.transitionsystem.AbstractTransitionSystem;
import be.unamur.transitionsystem.Action;
import be.unamur.transitionsystem.State;
import be.unamur.transitionsystem.Transition;
import be.unamur.transitionsystem.TransitionSystem;

public class FeaturedTransitionSystem extends
		AbstractTransitionSystem {

	public FeaturedTransitionSystem() {
		super(new FeaturedTransitionSystemElementFactory());
	}

	public FeaturedTransitionSystem(FeaturedTransitionSystem original) {
		super(original);
	}

	@SuppressWarnings("unchecked")
	public FeaturedTransitionSystem(TransitionSystem original) {
		this();
		importActions((Iterator) original.actions());
		importStates((Iterator) original.states());
		importTransitions((Iterator) original.states());
		this.setInitialState(getState(original.getInitialState().getName()));
	}

	/*
	 * @SuppressWarnings("unchecked") public
	 * FeaturedTransitionSystem(TransitionSystem original, FExpression
	 * defaultFExpr){ this();
	 * importActions((Iterator)original.actions());
	 * importStates((Iterator)original.states());
	 * importTransitions((Iterator)original.states(), defaultFExpr);
	 * this.setInitialState(getState(original.getInitialState().getName())); }
	 */
	
	@Override
	protected void importTransitions(Iterator states) {
		importTransitions(states, Constant.TRUE);
	}

	protected void importTransitions(Iterator states, FExpression defaultFExpr) {
		State state;
		Iterator itTrans;
		Transition trans;
		while (states.hasNext()) {
			state = states.next();
			itTrans = state.outgoingTransitions();
			while (itTrans.hasNext()) {
				trans = itTrans.next();
				if (trans instanceof FeaturedTransition) {
					addTransition(getState(trans.getFrom().getName()), getState(trans
							.getTo().getName()), getAction(trans.getAction().getName()),
							((FeaturedTransition) trans).getFeatureExpression());
				} else {
					addTransition(getState(trans.getFrom().getName()), getState(trans
							.getTo().getName()), getAction(trans.getAction().getName()),
							defaultFExpr);
				}
			}
		}

	}

	public FeaturedTransition addTransition(State from, State to, Action action,
			FExpression fexpression) {
		FeaturedTransition tr = (FeaturedTransition) ((FeaturedTransitionSystemElementFactory) this.factory)
				.buildTransition(from, to, action);
		tr.setFeatureExpression(fexpression);
		from.addOutgoing(tr);
		to.addIncoming(tr);
		return tr;
	}

	@Override
	public FeaturedTransition addTransition(State from, State to, Action action) {
		return addTransition(from, to, action, Constant.TRUE);
	}

	@Override
	public TransitionSystem copy() {
		return new FeaturedTransitionSystem(this);
	}

}