001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.rdf.utils;
031
032import com.hp.hpl.jena.graph.Node;
033import com.hp.hpl.jena.query.ParameterizedSparqlString;
034import com.hp.hpl.jena.rdf.model.Model;
035import com.hp.hpl.jena.rdf.model.Resource;
036
037/**
038 * Some tools for playing with {@link ParameterizedSparqlString} instances
039 * 
040 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
041 */
042public class PQUtils {
043
044        public static void setPSSLiteral(ParameterizedSparqlString pss, String[] strings, double[] geo) {
045                for (int i = 0; i < strings.length; i++) {
046                        if (geo == null) {
047                                setNull(pss, strings[i]);
048                        }
049                        else {
050                                pss.setLiteral(strings[i], geo[i]);
051                        }
052                }
053        }
054
055        public static void setNull(ParameterizedSparqlString pss, String name) {
056                pss.setLiteral(name, Node.NULL.toString());
057        }
058
059        public static void setPSSLiteral(ParameterizedSparqlString pss, String name, double d) {
060                pss.setLiteral(name, d);
061        }
062
063        public static void setPSSLiteral(ParameterizedSparqlString pss, String name, int d) {
064                pss.setLiteral(name, d);
065        }
066
067        public static void setPSSLiteral(ParameterizedSparqlString pss, String name, String lit) {
068                if (lit != null)
069                        pss.setLiteral(name, lit);
070                else
071                        setNull(pss, name);
072
073        }
074
075        public static void setPSSIri(ParameterizedSparqlString pss, String name, String iri) {
076                if (iri != null)
077                        pss.setIri(name, iri);
078                else
079                        setNull(pss, name);
080        }
081
082        public static void setPSSResource(ParameterizedSparqlString pss, String name, Resource iri) {
083                if (iri != null)
084                        pss.setParam(name, iri);
085                else
086                        setNull(pss, name);
087        }
088
089        public static ParameterizedSparqlString constructPQ(String query, Model m) {
090                final ParameterizedSparqlString pss = new ParameterizedSparqlString(query, m);
091                return pss;
092        }
093}