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/*
 *  This file is part of "Tweety", a collection of Java libraries for
 *  logical aspects of artificial intelligence and knowledge representation.
 *
 *  Tweety is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License version 3 as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program. If not, see .
 *
 *  Copyright 2016 The Tweety Project Team 
 */
package net.sf.tweety.logics.commons.analysis;

import java.util.Collection;

import net.sf.tweety.commons.Formula;

/**
 * This class models the MI inconsistency measure.
 * 
 * @author Matthias Thimm
 */
public class MiInconsistencyMeasure extends BeliefSetInconsistencyMeasure {

	/** The MUs enumerator. */
	private MusEnumerator enumerator;
	
	/**
	 * Creates a new inconsistency measure.
	 * @param enumerator some MUs enumerator
	 */
	public MiInconsistencyMeasure(MusEnumerator enumerator){
		this.enumerator = enumerator;
	}

	/* (non-Javadoc)
	 * @see net.sf.tweety.logics.commons.analysis.BeliefSetInconsistencyMeasure#inconsistencyMeasure(java.util.Collection)
	 */
	@Override
	public Double inconsistencyMeasure(Collection formulas) {
		return new Double(this.enumerator.minimalInconsistentSubsets(formulas).size());
	}

	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	public String toString(){
		return "mi";
	}
}