/*******************************************************************************
 * Copyright (c) 2004-2008 Akos Horvath, Gergely Varro and Daniel Varro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Akos Horvath, Gergely Varro - initial API and implementation
 *******************************************************************************/

 package org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.operation;

import org.eclipse.viatra2.core.IModelManager;
import org.eclipse.viatra2.gtasm.patternmatcher.exceptions.PatternMatcherRuntimeException;
import org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.MatchingFrame;
import org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.PatternMatcherErrorStrings;
import org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.searchgraph.SearchGraphEdge;


/**
 * @author Akos Horvath
 *
 */
public class AllEntitiesOperation extends ExtendOperation {
	private IModelManager manager;
	
	/**
	 * @param unbound
	 * @param edge
	 */
	public AllEntitiesOperation(Integer unbound, SearchGraphEdge edge, IModelManager m) {
		super(unbound, edge);
		manager = m;
	}
	
	public void preprocess(MatchingFrame frame) throws PatternMatcherRuntimeException {
		if(edge.isSource())
			iterator = manager.getEntities().iterator();
		else
		{
			String[] context = {frame.getPattern().getSearchGraph().getSearchNode(unbound).getName()};
			throw new PatternMatcherRuntimeException(PatternMatcherErrorStrings.INTERNAL_ALLENTITIES
					,context
					,frame.getPattern().getSearchGraph().getSearchNode(unbound).getTraceabilityElement().getRepresentativeEMFElement());	
		}
	}

	public String toString(){
		return getClass().getSimpleName() + " : " + 
        "ENTITY -- " + edge.getVPMEdgeType().name() + " -> " + unbound;
	}
}