QueryTreeFactoryCache.java

/**
 * Copyright (C) 2007 - 2016, Jens Lehmann
 *
 * This file is part of DL-Learner.
 *
 * DL-Learner is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * DL-Learner 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.dllearner.algorithms.qtl.impl;

import org.apache.jena.rdf.model.Model;
import org.apache.jena.rdf.model.Resource;
import org.apache.jena.rdf.model.Statement;
import org.dllearner.algorithms.qtl.datastructures.impl.RDFResourceTree;

import java.util.function.Predicate;

/**
 * 
 * @author Lorenz Bühmann
 *
 */
public class QueryTreeFactoryCache implements QueryTreeFactory {
	
//	private static final long size = 0;
//
//	LoadingCache<String, RDFResourceTree> cache = CacheBuilder.newBuilder().
//			maximumSize(size)
//			.build(
//			new CacheLoader<String, RDFResourceTree>() {
//				@Override
//				public RDFResourceTree load(String resource) throws Exception {
//					return delegatee.getQueryTree(resource, model);
//				}
//	});

	private QueryTreeFactory delegatee;

	public QueryTreeFactoryCache(QueryTreeFactory delegatee) {
		this.delegatee = delegatee;
	}

	/* (non-Javadoc)
	 * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#setMaxDepth(int)
	 */
	@Override
	public void setMaxDepth(int maxDepth) {
		delegatee.setMaxDepth(maxDepth);
	}
	
	/* (non-Javadoc)
	 * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#getQueryTree(java.lang.String, org.apache.jena.rdf.model.Model, int)
	 */
	@Override
	public RDFResourceTree getQueryTree(String example, Model model, int maxDepth) {
		return delegatee.getQueryTree(model.getResource(example), model, maxDepth);
	}

	/* (non-Javadoc)
	 * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#getQueryTree(org.apache.jena.rdf.model.Resource, org.apache.jena.rdf.model.Model, int)
	 */
	@Override
	public RDFResourceTree getQueryTree(Resource resource, Model model, int maxDepth) {
		return delegatee.getQueryTree(resource, model, maxDepth);
	}
	
	/* (non-Javadoc)
	 * @see org.dllearner.algorithms.qtl.impl.QueryTreeFactory#addDropFilters(org.apache.jena.util.iterator.Filter)
	 */
	@SafeVarargs
	@Override
	public final void addDropFilters(Predicate<Statement>... dropFilters) {
		delegatee.addDropFilters(dropFilters);
	}
}