001/*
002 *  Copyright 2017 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.plugins.odfweb.restrictions.rules;
017
018import java.util.Collection;
019import java.util.Collections;
020import java.util.Objects;
021
022import org.apache.commons.lang3.ArrayUtils;
023
024import org.ametys.odf.program.Program;
025import org.ametys.plugins.repository.query.expression.Expression;
026import org.ametys.plugins.repository.query.expression.OrExpression;
027
028/**
029 * Or restriction rule
030 */
031public class OdfOrRestrictionRule implements OdfRestrictionRule
032{
033    private final Collection<OdfRestrictionRule> _rules;
034    
035    /**
036     * Or restriction rule constructor
037     * @param rules The list of rules on which a "or" operator must be applied
038     */
039    public OdfOrRestrictionRule(Collection<OdfRestrictionRule> rules)
040    {
041        _rules = rules;
042        _rules.removeAll(Collections.<OdfRestrictionRule>singleton(null));
043    }
044    
045    @Override
046    public boolean contains(Program program)
047    {
048        return _rules.stream().anyMatch(r -> r.contains(program));
049    }
050    
051    @Override
052    public Expression getExpression()
053    {
054        Expression[] exprs = _rules.stream()
055            .map(OdfRestrictionRule::getExpression)
056            .filter(Objects::nonNull)
057            .toArray(Expression[]::new);
058        
059        if (ArrayUtils.isEmpty(exprs))
060        {
061            return null;
062        }
063        
064        if (exprs.length == 1)
065        {
066            return exprs[0];
067        }
068        
069        return new OrExpression(exprs);
070    }
071    
072    @Override
073    public boolean hasOrgunitRestrictions()
074    {
075        return _rules.stream().anyMatch(OdfRestrictionRule::hasOrgunitRestrictions);
076    }
077}