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.impl;
020
021import org.apache.jena.rdf.model.Model;
022import org.apache.jena.rdf.model.Resource;
023import org.apache.jena.rdf.model.Statement;
024import org.dllearner.algorithms.qtl.datastructures.impl.RDFResourceTree;
025
026import java.util.function.Predicate;
027
028/**
029 * 
030 * @author Lorenz Bühmann
031 *
032 */
033public class QueryTreeFactoryCache implements QueryTreeFactory {
034        
035//      private static final long size = 0;
036//
037//      LoadingCache<String, RDFResourceTree> cache = CacheBuilder.newBuilder().
038//                      maximumSize(size)
039//                      .build(
040//                      new CacheLoader<String, RDFResourceTree>() {
041//                              @Override
042//                              public RDFResourceTree load(String resource) throws Exception {
043//                                      return delegatee.getQueryTree(resource, model);
044//                              }
045//      });
046
047        private QueryTreeFactory delegatee;
048
049        public QueryTreeFactoryCache(QueryTreeFactory delegatee) {
050                this.delegatee = delegatee;
051        }
052
053        /* (non-Javadoc)
054         * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#setMaxDepth(int)
055         */
056        @Override
057        public void setMaxDepth(int maxDepth) {
058                delegatee.setMaxDepth(maxDepth);
059        }
060        
061        /* (non-Javadoc)
062         * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#getQueryTree(java.lang.String, org.apache.jena.rdf.model.Model, int)
063         */
064        @Override
065        public RDFResourceTree getQueryTree(String example, Model model, int maxDepth) {
066                return delegatee.getQueryTree(model.getResource(example), model, maxDepth);
067        }
068
069        /* (non-Javadoc)
070         * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#getQueryTree(org.apache.jena.rdf.model.Resource, org.apache.jena.rdf.model.Model, int)
071         */
072        @Override
073        public RDFResourceTree getQueryTree(Resource resource, Model model, int maxDepth) {
074                return delegatee.getQueryTree(resource, model, maxDepth);
075        }
076        
077        /* (non-Javadoc)
078         * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#addDropFilters(org.apache.jena.util.iterator.Filter)
079         */
080        @SafeVarargs
081        @Override
082        public final void addDropFilters(Predicate<Statement>... dropFilters) {
083                delegatee.addDropFilters(dropFilters);
084        }
085}