ResultCombining.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.openspcoop2.utils.xacml;

import java.util.List;

import org.herasaf.xacml.core.context.impl.DecisionType;
import org.herasaf.xacml.core.context.impl.ResultType;


/**
 * ResultCombining
 *
 * @author Bussu Giovanni (bussu@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class ResultCombining {

    public static DecisionType combinePermitOverrides(List<ResultType> resultType) {
        boolean isDeny = false;
        for(ResultType result : resultType) {
            if(result.getDecision().equals(DecisionType.PERMIT)) {
                return DecisionType.PERMIT;
            } else if(result.getDecision().equals(DecisionType.DENY)) {
                isDeny = true;
            } else if(result.getDecision().equals(DecisionType.INDETERMINATE)) {
                return DecisionType.INDETERMINATE;
            }
        }
        
        if(isDeny) {
            return DecisionType.DENY;
        }
        
        return DecisionType.NOT_APPLICABLE;
    }

    public static DecisionType combineDenyOverrides(List<ResultType> resultType) {
        boolean isPermit = false;
        for(ResultType result : resultType) {
            if(result.getDecision().equals(DecisionType.DENY)) {
                return DecisionType.DENY;
            } else if(result.getDecision().equals(DecisionType.INDETERMINATE)) {
                return DecisionType.INDETERMINATE;
            } else if(result.getDecision().equals(DecisionType.PERMIT)) {
                isPermit = true;
            }
        }
        
        if(isPermit) {
            return DecisionType.PERMIT;
        }
        
        return DecisionType.NOT_APPLICABLE;

    }
}