001/**
002 * Copyright (C) 2007 - 2016, Jens Lehmann
003 *
004 * This file is part of DL-Learner.
005 *
006 * DL-Learner is free software; you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation; either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * DL-Learner is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
018 */
019package org.dllearner.algorithms.qtl.util.filters;
020
021import org.apache.jena.rdf.model.Statement;
022
023import java.util.Set;
024import java.util.function.Predicate;
025
026/**
027 * A filter that drops statements whose predicate is in given blacklist.
028 * @author Lorenz Buehmann
029 *
030 */
031public class PredicateDropStatementFilter implements Predicate<Statement> {
032        
033        
034        private Set<String> predicateIriBlackList;
035
036        public PredicateDropStatementFilter(Set<String> predicateIriBlackList) {
037                this.predicateIriBlackList = predicateIriBlackList;
038        }
039
040        /* (non-Javadoc)
041         * @see org.apache.jena.util.iterator.Filter#accept(java.lang.Object)
042         */
043        @Override
044        public boolean test(Statement st) {
045                return !predicateIriBlackList.contains(st.getPredicate().toString());
046        }
047        
048        /* (non-Javadoc)
049         * @see java.lang.Object#toString()
050         */
051        @Override
052        public String toString() {
053                return "!?p in " + predicateIriBlackList;
054        }
055
056}