[2] | 1 | package org.biohackathon.SPARQLBuilder.OWL;
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| 2 |
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| 3 | import java.util.ArrayList;
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| 4 | import java.util.Collection;
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| 5 | import java.util.HashMap;
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| 6 | import java.util.HashSet;
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| 7 | import java.util.Set;
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| 8 |
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| 9 | import com.hp.hpl.jena.query.Query;
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| 10 | import com.hp.hpl.jena.query.QueryExecution;
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| 11 | import com.hp.hpl.jena.query.QueryExecutionFactory;
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| 12 | import com.hp.hpl.jena.query.QueryFactory;
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| 13 | import com.hp.hpl.jena.query.QuerySolution;
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| 14 | import com.hp.hpl.jena.query.ResultSet;
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[10] | 15 | import com.hp.hpl.jena.rdf.model.Literal;
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[2] | 16 | import com.hp.hpl.jena.rdf.model.Resource;
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[5] | 17 |
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[2] | 18 | /**
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| 19 | * 繧ッ繧ィ繝ェ繧堤函謌舌☆繧九◆繧√�讖溯�繧呈署萓帙☆繧区ク繧ッ繝ゥ繧ケ
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[22] | 20 | *
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[2] | 21 | * @author Norio KOBAYASHI
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| 22 | * @since 28.01.2014
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| 23 | * @version 29.01.2014
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| 24 | */
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| 25 | public class OWLQueryBuilderImpl implements OWLQueryBuilder {
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| 26 |
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| 27 | // private Model model = null;
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| 28 | private String endpointURI = null;
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| 29 |
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| 30 | /**
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| 31 | * 繧「繧ッ繧サ繧ケ縺吶kSPARQL endpoint縺ョURI繧呈欠螳壹☆繧区ァ区�蟄� |
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| 32 | *
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[22] | 33 | * @param endpointURI
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| 34 | * 縲繧「繧ッ繧サ繧ケ縺吶kSPARQL endpoint縺ョURI
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[2] | 35 | * @throws Exception
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| 36 | * @since 28.01.2014
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| 37 | */
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| 38 | public OWLQueryBuilderImpl(String endpointURI) {
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| 39 | this.endpointURI = endpointURI;
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| 40 | }
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| 41 |
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| 42 | /**
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| 43 | * 繝�せ繝医↓菴ソ逕ィ縺吶kmain繝。繧ス繝�ラ
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| 44 | * <p>
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| 45 | * 繧ッ繧ィ繝ェ繝薙Ν繝繝シ縺ョ譛ャ逡ェ繝励Ο繧ー繝ゥ繝縺ァ縺ッ縺薙�繝。繧ス繝�ラ縺ッ菴ソ逕ィ縺励↑縺� |
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| 46 | * </p>
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[22] | 47 | *
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| 48 | * @param args
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| 49 | * 菴ソ逕ィ縺励↑縺� |
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[2] | 50 | * @throws Exception
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| 51 | * @since 28.01.2014
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| 52 | */
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| 53 | public static void main(String[] args) throws Exception {
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[36] | 54 | // String sparqlEndpoint = "http://dbpedia.org/sparql";
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| 55 | String sparqlEndpoint = "http://lsd.dbcls.jp/sparql";
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| 56 | // String keyword = "artiste";
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| 57 | String keyword = "EnglishCode";
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[2] | 58 | String[] graphURIs = new String[0];
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| 59 |
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[36] | 60 | keyword = null;
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| 61 |
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[2] | 62 | OWLQueryBuilder builder = new OWLQueryBuilderImpl(sparqlEndpoint);
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[42] | 63 |
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| 64 | /*
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[28] | 65 | SClass[] clz = builder.getOWLClasses(graphURIs, keyword, false);
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[22] | 66 | for (SClass cls : clz) {
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[2] | 67 | System.out.println(cls);
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| 68 | }
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[31] | 69 | clz = builder.countInstances(null, clz);
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| 70 | for (SClass cls : clz) {
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| 71 | System.out.println(cls);
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| 72 | }
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[42] | 73 | */
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[36] | 74 | System.out.println("CLS");
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| 75 |
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[42] | 76 | String uri = "http://purl.jp/bio/10/lsd/ontology/201209#EnglishEntry";
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| 77 |
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| 78 | ClassLink[] cls = builder.getNextClass(null, uri, 100, false);
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| 79 |
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[26] | 80 | if (cls != null) {
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| 81 | for (ClassLink cl : cls) {
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| 82 | System.out.println(cl.toString());
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| 83 | }
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[42] | 84 | cls = builder.countLinks(null, uri, cls);
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[26] | 85 | for (ClassLink cl : cls) {
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| 86 | System.out.println(cl.toString());
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| 87 | }
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| 88 | }
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[42] | 89 | /*
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[36] | 90 | System.out.println("CLS-INS");
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| 91 | cls = builder.getNextClassViaInstanceLink(null, clz[0].getClassURI(),
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| 92 | 100);
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| 93 | if (cls != null) {
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| 94 | for (ClassLink cl : cls) {
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| 95 | System.out.println(cl.toString());
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| 96 | }
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| 97 | }
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| 98 |
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| 99 | System.out.println("Instances");
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| 100 | Instance[] ins = builder.getInstances(null, "\"A.C. Reed\"@en");
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| 101 | if (ins != null) {
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| 102 | for (Instance in : ins) {
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| 103 | System.out.println(in.toString());
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| 104 | }
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| 105 | }
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[42] | 106 | */
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[22] | 107 | /*
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| 108 | * System.out.println("INS-INS"); ins = builder.getInstances(null,
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| 109 | * "\"A.C. Reed\"@en"); InstanceLink[] iLinks =
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| 110 | * builder.getNextInstancesViaInstanceLink(null,
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| 111 | * ins[0].getInstanceURI(), 100);
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| 112 | *
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[36] | 113 | * if (iLinks != null) { for (InstanceLink in : iLinks) {
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[22] | 114 | * System.out.println(in.toString()); } }
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| 115 | */
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[2] | 116 | }
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| 117 |
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[42] | 118 |
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| 119 |
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| 120 |
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[2] | 121 | /**
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| 122 | * 譏守、コ逧�↓RDF縺ァ譖ク縺九l縺ヲ縺�k繧ッ繝ゥ繧ケ繧貞叙蠕励☆繧� |
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| 123 | * <p>
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[22] | 124 | * 謖�ョ壹&繧後◆graphURIs縺ョ荳ュ縺九i縲√く繝シ繝ッ繝シ繝峨↓繝偵ャ繝医☆繧九Λ繝吶Ν繧呈戟縺、繧ッ繝ゥ繧ケ��dfs:Class�峨r縺吶∋縺ヲ霑斐☆ <br>
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[2] | 125 | * </p>
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| 126 | *
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[22] | 127 | * @param graphURIs
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| 128 | * 縲讀懃エ「蟇セ雎。縺ョgraph縺ョURI驟榊� (null繧�聞縺�縺ョ驟榊�繧ょ庄)
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| 129 | * @param keyword
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| 130 | * ��ull繧�ゥコ譁�ュ励�荳榊庄�� |
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[2] | 131 | * @return 繧ッ繝ゥ繧ケURI縺ョ驟榊�
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| 132 | * @throws Exception
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| 133 | * @since 28.01.2014
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| 134 | */
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[28] | 135 | public SClass[] getOWLClasses(String[] graphURIs, String keyword,
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| 136 | boolean countInstances) throws Exception {
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[2] | 137 | StringBuffer queryStr = new StringBuffer();
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| 138 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
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| 139 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
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| 140 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
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[28] | 141 | if (countInstances) {
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| 142 | queryStr.append("SELECT DISTINCT ?c ?pLabel (COUNT(?i) AS ?numOfInstances)\n");
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| 143 | } else {
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| 144 | queryStr.append("SELECT DISTINCT ?c ?pLabel \n");
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| 145 | }
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[2] | 146 | if (graphURIs != null) {
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| 147 | for (String graphURI : graphURIs) {
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| 148 | queryStr.append("FROM <");
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| 149 | queryStr.append(graphURI);
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| 150 | queryStr.append(">\n");
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| 151 | }
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| 152 | }
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| 153 | queryStr.append("WHERE{\n");
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[22] | 154 |
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[42] | 155 | //
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[2] | 156 | queryStr.append(" {?c rdf:type rdfs:Class} UNION {?c rdf:type owl:Class}\n");
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[36] | 157 | // queryStr.append(" ?i rdf:type ?c.\n");
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[2] | 158 |
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[36] | 159 |
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| 160 |
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[28] | 161 | if (countInstances) {
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[36] | 162 | queryStr.append(" ?c rdfs:label ?label.\n");
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| 163 | }
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| 164 | queryStr.append(" ?c rdfs:label ?pLabel.\n");
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| 165 | if (countInstances) {
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[28] | 166 | queryStr.append(" ?i rdf:type ?c.\n");
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| 167 | }
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[22] | 168 | // queryStr.append(" ?c rdfs:label ");
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| 169 | // queryStr.append(keyword);
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| 170 | // queryStr.append(".");
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[28] | 171 | if (keyword != null && keyword.length() != 0) {
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| 172 | queryStr.append(" FILTER (\n");
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| 173 | queryStr.append(" REGEX( ?label , \"");
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| 174 | queryStr.append(keyword);
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| 175 | queryStr.append("\" , \"i\" )\n");
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[36] | 176 | queryStr.append(" )\n");
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[28] | 177 | }
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| 178 | if (countInstances) {
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[36] | 179 | queryStr.append("} GROUP BY ?c ?pLabel");
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[28] | 180 | } else {
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[36] | 181 | queryStr.append("}");
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[28] | 182 | }
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[22] | 183 | System.out.println(queryStr.toString());
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| 184 |
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[2] | 185 | Query query = QueryFactory.create(queryStr.toString());
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| 186 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
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| 187 | query);
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| 188 |
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| 189 | ResultSet results = qexec.execSelect();
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[22] | 190 | HashMap<String, SClass> classMap = new HashMap<String, SClass>();
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[2] | 191 | for (; results.hasNext();) {
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| 192 | QuerySolution sol = results.next();
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| 193 | Resource res = sol.getResource("c");
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[22] | 194 | if (res != null) {
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| 195 | String uri = res.getURI();
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[31] | 196 | int numOfInstances = 0;
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[36] | 197 | if (countInstances) {
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[31] | 198 | numOfInstances = sol.getLiteral("numOfInstances").getInt();
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| 199 | }
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[22] | 200 | // System.out.println(numOfInstances);
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| 201 | Literal labelLiteral = sol.getLiteral("pLabel");
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| 202 | SClass sClass = null;
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| 203 | if (classMap.containsKey(uri)) {
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| 204 | sClass = classMap.get(uri);
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| 205 | } else {
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[10] | 206 | sClass = new SClass(uri, null, numOfInstances);
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| 207 | classMap.put(uri, sClass);
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[22] | 208 | }
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| 209 | if (labelLiteral != null) {
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[10] | 210 | String label = labelLiteral.getString();
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| 211 | String lang = labelLiteral.getLanguage();
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| 212 | sClass.addLabel(new Label(label, lang));
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| 213 | }
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[22] | 214 | }
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[2] | 215 | }
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| 216 | qexec.close();
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[10] | 217 | return classMap.values().toArray(new SClass[0]);
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[2] | 218 | }
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| 219 |
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| 220 | /**
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[22] | 221 | * 縲繧、繝ウ繧ケ繧ソ繝ウ繧ケ繧貞叙蠕励☆繧� |
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[2] | 222 | * <p>
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[22] | 223 | * 謖�ョ壹&繧後◆graphURIs縺ョ荳ュ縺九i縲√く繝シ繝ッ繝シ繝峨↓繝偵ャ繝医☆繧九Λ繝吶Ν繧呈戟縺、繧、繝ウ繧ケ繧ソ繝ウ繧ケ繧偵☆縺ケ縺ヲ霑斐☆ <br>
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| 224 | * 縺薙%縺ァ繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ィ縺ッ縲〉df:type縺ョ荳サ隱槭→縺励※險倩ソー縺輔l縺ヲ縺�k繧ゅ�繧偵>縺�<br>
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[2] | 225 | * </p>
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| 226 | *
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[22] | 227 | * @param graphURIs
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| 228 | * 縲讀懃エ「蟇セ雎。縺ョgraph縺ョURI驟榊� (null繧�聞縺�縺ョ驟榊�繧ょ庄)
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| 229 | * @param keyword
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| 230 | * ��ull繧�ゥコ譁�ュ励�荳榊庄�� |
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[2] | 231 | * @return 繧ッ繝ゥ繧ケURI縺ョ驟榊�
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| 232 | * @throws Exception
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| 233 | * @since 28.01.2014
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| 234 | */
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| 235 | public Instance[] getInstances(String[] graphURIs, String keyword)
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| 236 | throws Exception {
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| 237 | StringBuffer queryStr = new StringBuffer();
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| 238 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
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| 239 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
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| 240 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
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| 241 | queryStr.append("SELECT DISTINCT ?ins ?c \n");
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| 242 | if (graphURIs != null) {
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| 243 | for (String graphURI : graphURIs) {
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| 244 | queryStr.append("FROM <");
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| 245 | queryStr.append(graphURI);
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| 246 | queryStr.append(">\n");
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| 247 | }
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| 248 | }
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| 249 | queryStr.append("WHERE{\n");
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[22] | 250 | // queryStr.append(" {?c rdf:type rdfs:Class} UNION {?c rdf:type owl:Class}\n");
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[2] | 251 |
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| 252 | queryStr.append(" ?ins rdf:type ?c.\n");
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| 253 | queryStr.append(" ?ins rdfs:label ");
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| 254 | queryStr.append(keyword);
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| 255 | queryStr.append(".\n");
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| 256 | queryStr.append(" FILTER (?c != rdf:Property)");
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| 257 | queryStr.append("}");
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[22] | 258 |
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| 259 | // System.out.println(queryStr.toString());
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| 260 |
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[2] | 261 | Query query = QueryFactory.create(queryStr.toString());
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| 262 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
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| 263 | query);
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| 264 |
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| 265 | ResultSet results = qexec.execSelect();
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| 266 | HashMap<String, HashSet<String>> instanceMap = new HashMap<String, HashSet<String>>();
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| 267 | for (; results.hasNext();) {
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| 268 | QuerySolution sol = results.next();
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| 269 | Resource cls = sol.getResource("c");
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| 270 | Resource ins = sol.getResource("ins");
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| 271 | String clsURI = cls.getURI();
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| 272 | String insURI = ins.getURI();
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[22] | 273 | if (instanceMap.containsKey(insURI)) {
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[2] | 274 | HashSet<String> classes = instanceMap.get(insURI);
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| 275 | classes.add(clsURI);
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[22] | 276 | } else {
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[2] | 277 | HashSet<String> classes = new HashSet<String>();
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| 278 | instanceMap.put(insURI, classes);
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| 279 | classes.add(clsURI);
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| 280 | }
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| 281 | }
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| 282 | qexec.close();
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| 283 | Set<String> keySet = instanceMap.keySet();
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| 284 | ArrayList<Instance> instanceList = new ArrayList<Instance>();
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[22] | 285 | for (String key : keySet) {
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| 286 | Instance ins = new Instance(key, instanceMap.get(key).toArray(
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| 287 | new String[0]));
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[2] | 288 | instanceList.add(ins);
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| 289 | }
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| 290 | return instanceList.toArray(new Instance[0]);
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| 291 | }
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| 292 |
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| 293 | /**
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[22] | 294 | * 縲謖�ョ壹&繧後◆繧ッ繝ゥ繧ケ繧定オキ轤ケ縺ィ縺励∵�遉コ逧�↓險倩ソー縺輔l縺ヲ縺�kOWL縺ョproperty蛻カ邏�r隱ソ縺ケ縲√◎縺ョproperty蛻カ邏�〒
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[2] | 295 | * 髢「騾」縺・縺代i繧後※縺�k繧ッ繝ゥ繧ケ繧堤カイ鄒�噪縺ォ蜿門セ励☆繧� |
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| 296 | * <p>
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[22] | 297 | * 蜃ヲ逅�ッセ雎。繝��繧ソ繧暖raphURIs縺ァ謖�ョ壹☆繧九%縺ィ縺後〒縺阪k <br>
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[2] | 298 | * <br>
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| 299 | * </p>
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| 300 | *
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[22] | 301 | * @param graphURIs
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| 302 | * 縲讀懃エ「蟇セ雎。縺ョgraph縺ョURI驟榊� 縲(null繧�聞縺�縺ョ驟榊�繧ょ庄)
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| 303 | * @param originClass
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| 304 | * 襍キ轤ケ縺ィ縺ェ繧九け繝ゥ繧ケ縺ョURI縲��ull荳榊庄�� |
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| 305 | * @param limit
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| 306 | * 隗」縺ィ縺励※霑斐&繧後kClassLink驟榊�縺ョ髟キ縺輔�荳企剞蛟、繧呈欠螳壹☆繧九�荳企剞蛟、繧定ィュ螳壹@縺ェ縺�エ蜷医�0莉・荳九�蛟、繧呈欠螳壹☆繧�
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[2] | 307 | * @return ClassLink縺ョ驟榊�縲ゅ%縺薙↓縺ッ縲∝叙蠕励&繧後◆繧ッ繝ゥ繧ケ縺ィ髢「菫ゅ▼縺代i繧後※縺�k繝励Ο繝代ユ繧」縲�未菫ゅ�蜷代″縺悟性縺セ繧後k縲� |
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| 308 | * @throws Exception
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| 309 | * @since 28.01.2014
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| 310 | */
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| 311 | public ClassLink[] getNextClass(String[] graphURIs, String originClass,
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[20] | 312 | int limit, boolean countLinks) throws Exception {
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[42] | 313 | ClassLink[] cLinks = getNextClassSub(graphURIs, originClass, limit, false);
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| 314 | if( countLinks ){
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| 315 | cLinks = countLinks(graphURIs, originClass, cLinks);
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| 316 | }
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| 317 | return cLinks;
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| 318 | }
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| 319 |
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| 320 | private ClassLink[] getNextClassSub(String[] graphURIs, String originClass,
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| 321 | int limit, boolean countLinks) throws Exception {
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| 322 | StringBuffer queryStr = new StringBuffer();
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[2] | 323 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
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| 324 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
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| 325 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
|
---|
[20] | 326 |
|
---|
| 327 | // SELECT
|
---|
[22] | 328 | if (countLinks) {
|
---|
| 329 | queryStr.append("SELECT DISTINCT ?p ?pDirection ?c (COUNT(?s) AS ?numOfLinks) \n");
|
---|
| 330 | } else {
|
---|
[20] | 331 | queryStr.append("SELECT DISTINCT ?p ?pDirection ?c \n");
|
---|
| 332 | }
|
---|
[22] | 333 |
|
---|
[2] | 334 | if (graphURIs != null) {
|
---|
| 335 | for (String graphURI : graphURIs) {
|
---|
| 336 | queryStr.append("FROM <");
|
---|
| 337 | queryStr.append(graphURI);
|
---|
| 338 | queryStr.append(">\n");
|
---|
| 339 | }
|
---|
| 340 | }
|
---|
| 341 | queryStr.append("WHERE{\n");
|
---|
[28] | 342 | // queryStr.append(" { ?c rdf:type rdfs:Class. }\n UNION\n { ?c rdf:type owl:Class. }\n");
|
---|
[2] | 343 | queryStr.append(" { ?p rdfs:domain <");
|
---|
| 344 | queryStr.append(originClass);
|
---|
[19] | 345 | queryStr.append(">.\n ?p rdfs:range ?c.\n");
|
---|
[27] | 346 |
|
---|
[22] | 347 | if (countLinks) {
|
---|
| 348 | queryStr.append(" ?o ?p ?s.");
|
---|
[28] | 349 | } else {
|
---|
[27] | 350 | queryStr.append("filter(exists{\n");
|
---|
| 351 | queryStr.append(" ?o rdf:type ?c.\n");
|
---|
| 352 | queryStr.append(" ?s rdf:type <");
|
---|
| 353 | queryStr.append(originClass);
|
---|
| 354 | queryStr.append(">.\n");
|
---|
| 355 | queryStr.append(" ?s ?p ?o.})\n");
|
---|
[20] | 356 | }
|
---|
[22] | 357 |
|
---|
[19] | 358 | queryStr.append("}\n UNION\n");
|
---|
[2] | 359 | queryStr.append(" { ?p rdfs:range <");
|
---|
| 360 | queryStr.append(originClass);
|
---|
[5] | 361 | queryStr.append(">.\n");
|
---|
| 362 | queryStr.append(" ?p rdfs:domain ?c.\n");
|
---|
[20] | 363 |
|
---|
[22] | 364 | if (countLinks) {
|
---|
| 365 | queryStr.append(" ?s ?p ?o.");
|
---|
[28] | 366 | } else {
|
---|
[27] | 367 | queryStr.append("filter(exists{\n");
|
---|
| 368 | queryStr.append(" ?s rdf:type ?c.\n");
|
---|
| 369 | queryStr.append(" ?o rdf:type <");
|
---|
| 370 | queryStr.append(originClass);
|
---|
| 371 | queryStr.append(">.\n");
|
---|
| 372 | queryStr.append(" ?s ?p ?o.})\n");
|
---|
[20] | 373 | }
|
---|
[22] | 374 |
|
---|
[19] | 375 | queryStr.append("}\n");
|
---|
[5] | 376 |
|
---|
| 377 | queryStr.append(" ?p ?pDirection ?c.\n");
|
---|
| 378 |
|
---|
| 379 | queryStr.append(" ?s rdf:type ?c.\n");
|
---|
[20] | 380 |
|
---|
[22] | 381 | if (countLinks) {
|
---|
[20] | 382 | queryStr.append("}\nGROUP BY ?p ?pDirection ?c\n");
|
---|
[22] | 383 | } else {
|
---|
[20] | 384 | queryStr.append("}\n");
|
---|
| 385 | }
|
---|
[2] | 386 | if (limit > 0) {
|
---|
| 387 | queryStr.append("limit ");
|
---|
| 388 | queryStr.append(limit);
|
---|
| 389 | queryStr.append("\n");
|
---|
| 390 | }
|
---|
[22] | 391 |
|
---|
| 392 | System.out.println(queryStr.toString());
|
---|
| 393 |
|
---|
[2] | 394 | Query query = QueryFactory.create(queryStr.toString());
|
---|
| 395 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
|
---|
| 396 | query);
|
---|
| 397 |
|
---|
| 398 | ResultSet results = qexec.execSelect();
|
---|
| 399 | ArrayList<ClassLink> solCLs = new ArrayList<ClassLink>();
|
---|
| 400 | for (; results.hasNext();) {
|
---|
| 401 | QuerySolution sol = results.next();
|
---|
| 402 | Resource pro = sol.getResource("p");
|
---|
[22] | 403 | if (pro != null) {
|
---|
| 404 | Resource cls = sol.getResource("c");
|
---|
| 405 | Resource dir = sol.getResource("pDirection");
|
---|
| 406 | String proURI = pro.getURI();
|
---|
| 407 | String clsURI = cls.getURI();
|
---|
| 408 | String dirURI = dir.getURI();
|
---|
[2] | 409 |
|
---|
[22] | 410 | // System.out.println(pro.getURI() + " " + cls.getURI() + " " +
|
---|
| 411 | // dir.getURI());
|
---|
| 412 |
|
---|
| 413 | Direction direction = null;
|
---|
| 414 | if (dirURI
|
---|
| 415 | .equals("http://www.w3.org/2000/01/rdf-schema#domain")
|
---|
| 416 | || dirURI.equals("rdfs:domain")) {
|
---|
| 417 | direction = Direction.reverse;
|
---|
[2] | 418 | }
|
---|
[22] | 419 | if (dirURI.equals("http://www.w3.org/2000/01/rdf-schema#range")
|
---|
| 420 | || dirURI.equals("rdfs:range")) {
|
---|
| 421 | if (direction != null) {
|
---|
| 422 | direction = Direction.both;
|
---|
| 423 | } else {
|
---|
| 424 | direction = Direction.forward;
|
---|
| 425 | }
|
---|
| 426 | }
|
---|
| 427 | // System.out.println(direction);
|
---|
[23] | 428 | int numOfLinks = 0;
|
---|
[26] | 429 | if (countLinks) {
|
---|
| 430 | numOfLinks = sol.getLiteral("numOfLinks").getInt();
|
---|
[23] | 431 | }
|
---|
[22] | 432 | ClassLink cl = new ClassLink(proURI, clsURI, direction,
|
---|
| 433 | numOfLinks);
|
---|
| 434 | solCLs.add(cl);
|
---|
[2] | 435 | }
|
---|
| 436 | }
|
---|
| 437 | qexec.close();
|
---|
| 438 | return solCLs.toArray(new ClassLink[0]);
|
---|
| 439 | }
|
---|
[22] | 440 |
|
---|
[2] | 441 | /**
|
---|
[22] | 442 | * 縲謖�ョ壹&繧後◆繧ッ繝ゥ繧ケ繧定オキ轤ケ縺ィ縺励√◎縺ョ繧ッ繝ゥ繧ケ縺ォ螻槭@縺ヲ縺�k繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ィ繝ェ繝ウ繧ッ縺悟シオ繧峨l縺ヲ縺�k繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ョ髮�粋繧貞叙蠕励@縲� |
---|
| 443 | * 蜿門セ励@縺溘う繝ウ繧ケ繧ソ繝ウ繧ケ縺ョ繧ッ繝ゥ繧ケ繧堤カイ鄒�噪縺ォ蜿門セ励☆繧� |
---|
[2] | 444 | * <p>
|
---|
[22] | 445 | * 縺薙%縺ァ繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ィ縺ッ縲〉df:type縺ョ荳サ隱槭→縺励※險倩ソー縺輔l縺ヲ縺�k繧ゅ�繧偵>縺�<br>
|
---|
| 446 | * 蜃ヲ逅�ッセ雎。繝��繧ソ繧暖raphURIs縺ァ謖�ョ壹☆繧九%縺ィ縺後〒縺阪k <br>
|
---|
[2] | 447 | * </p>
|
---|
| 448 | *
|
---|
[22] | 449 | * @param graphURIs
|
---|
| 450 | * 縲讀懃エ「蟇セ雎。縺ョgraph縺ョURI驟榊� 縲(null繧�聞縺�縺ョ驟榊�繧ょ庄)
|
---|
| 451 | * @param originClass
|
---|
| 452 | * 襍キ轤ケ縺ィ縺ェ繧九け繝ゥ繧ケ縺ョURI縲��ull荳榊庄�� |
---|
| 453 | * @param limit
|
---|
| 454 | * 隗」縺ィ縺励※霑斐&繧後kClassLink驟榊�縺ョ髟キ縺輔�荳企剞蛟、繧呈欠螳壹☆繧九�荳企剞蛟、繧定ィュ螳壹@縺ェ縺�エ蜷医�0莉・荳九�蛟、繧呈欠螳壹☆繧�
|
---|
[2] | 455 | * @return ClassLink縺ョ驟榊�縲ゅ%縺薙↓縺ッ縲∝叙蠕励&繧後◆繧ッ繝ゥ繧ケ縺ィ髢「菫ゅ▼縺代i繧後※縺�k繝励Ο繝代ユ繧」縲�未菫ゅ�蜷代″縺悟性縺セ繧後k縲� |
---|
| 456 | * @throws Exception
|
---|
| 457 | * @since 28.01.2014
|
---|
| 458 | */
|
---|
[22] | 459 | public ClassLink[] getNextClassViaInstanceLink(String[] graphURIs,
|
---|
| 460 | String originClass, int limit) throws Exception {
|
---|
[2] | 461 | StringBuffer queryStr = new StringBuffer();
|
---|
| 462 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
|
---|
| 463 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
|
---|
| 464 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
|
---|
| 465 | queryStr.append("SELECT DISTINCT ?pf ?pr ?c \n");
|
---|
| 466 | if (graphURIs != null) {
|
---|
| 467 | for (String graphURI : graphURIs) {
|
---|
| 468 | queryStr.append("FROM <");
|
---|
| 469 | queryStr.append(graphURI);
|
---|
| 470 | queryStr.append(">\n");
|
---|
| 471 | }
|
---|
| 472 | }
|
---|
| 473 | queryStr.append("WHERE{\n");
|
---|
| 474 | queryStr.append(" ?ins rdf:type ?c.\n");
|
---|
| 475 | queryStr.append(" ?insOrg rdf:type <");
|
---|
| 476 | queryStr.append(originClass);
|
---|
| 477 | queryStr.append(">.\n");
|
---|
| 478 | queryStr.append(" { ?ins ?pr ?insOrg. }\n UNION { ?insOrg ?pf ?ins. }\n");
|
---|
| 479 | queryStr.append("}\n");
|
---|
| 480 | if (limit > 0) {
|
---|
| 481 | queryStr.append("limit ");
|
---|
| 482 | queryStr.append(limit);
|
---|
| 483 | queryStr.append("\n");
|
---|
| 484 | }
|
---|
[22] | 485 |
|
---|
| 486 | // System.out.println(queryStr.toString());
|
---|
| 487 |
|
---|
[2] | 488 | Query query = QueryFactory.create(queryStr.toString());
|
---|
| 489 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
|
---|
| 490 | query);
|
---|
| 491 |
|
---|
| 492 | ResultSet results = qexec.execSelect();
|
---|
| 493 | ArrayList<ClassLink> solCLs = new ArrayList<ClassLink>();
|
---|
| 494 | for (; results.hasNext();) {
|
---|
| 495 | QuerySolution sol = results.next();
|
---|
| 496 | Resource proForward = sol.getResource("pf");
|
---|
| 497 | Resource proReverse = sol.getResource("pr");
|
---|
| 498 | Resource cls = sol.getResource("c");
|
---|
| 499 | Direction direction = null;
|
---|
| 500 | String propURI = null;
|
---|
[22] | 501 | if (proForward != null) {
|
---|
| 502 | if (proReverse != null) {
|
---|
[2] | 503 | direction = Direction.both;
|
---|
[22] | 504 | } else {
|
---|
[2] | 505 | direction = Direction.forward;
|
---|
| 506 | }
|
---|
| 507 | propURI = proForward.getURI();
|
---|
[22] | 508 | } else {
|
---|
[2] | 509 | direction = Direction.reverse;
|
---|
| 510 | propURI = proReverse.getURI();
|
---|
| 511 | }
|
---|
| 512 | String clsURI = cls.getURI();
|
---|
[22] | 513 | // System.out.println(propURI + " " + clsURI + " " + direction);
|
---|
| 514 |
|
---|
[2] | 515 | ClassLink cl = new ClassLink(propURI, clsURI, direction, 0);
|
---|
| 516 | solCLs.add(cl);
|
---|
| 517 | }
|
---|
| 518 | qexec.close();
|
---|
| 519 | return solCLs.toArray(new ClassLink[0]);
|
---|
| 520 | }
|
---|
| 521 |
|
---|
[36] | 522 | public Path[] getPaths(String startClass, String endClass, int mode,
|
---|
| 523 | boolean countLinks) throws Exception {
|
---|
[2] | 524 | OWLClassGraph graph = new OWLClassGraph(startClass, endClass);
|
---|
[32] | 525 | return graph.getPaths(this, mode, countLinks);
|
---|
[2] | 526 | }
|
---|
| 527 |
|
---|
| 528 | public String createSPARQL(Path path) throws Exception {
|
---|
| 529 | return null;
|
---|
| 530 | }
|
---|
| 531 |
|
---|
[22] | 532 | /*
|
---|
| 533 | * private String executeSelect(String sparqlQuery) throws Exception {
|
---|
| 534 | * HttpClient client = HttpClientBuilder.create().build(); HttpPost httppost
|
---|
| 535 | * = new HttpPost(endpointURI); httppost.setHeader("Content-Type",
|
---|
| 536 | * "application/x-www-form-urlencoded"); httppost.setHeader("Accept",
|
---|
| 537 | * "application/sparql-results+xml"); List<NameValuePair> nvpList = new
|
---|
| 538 | * ArrayList<NameValuePair>(); nvpList.add(new BasicNameValuePair("query",
|
---|
| 539 | * sparqlQuery)); // nvpList.add(new BasicNameValuePair("format", //
|
---|
| 540 | * outputFormat.getMime())); httppost.setEntity(new
|
---|
| 541 | * UrlEncodedFormEntity(nvpList, Charset .forName("UTF-8"))); HttpResponse
|
---|
| 542 | * response = client.execute(httppost); //
|
---|
| 543 | * System.out.println("[StatusLine] " + response.getStatusLine());
|
---|
| 544 | * HttpEntity entity = response.getEntity(); String entityString =
|
---|
| 545 | * EntityUtils.toString(entity, "UTF-8"); return entityString; }
|
---|
| 546 | */
|
---|
[2] | 547 |
|
---|
| 548 | /**
|
---|
[22] | 549 | * 縲謖�ョ壹&繧後◆繧、繝ウ繧ケ繧ソ繝ウ繧ケ繧定オキ轤ケ縺ィ縺励√◎縺ョ繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ォ繝ェ繝ウ繧ッ縺悟シオ繧峨l縺ヲ縺�k繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ョ髮�粋繧貞叙蠕励☆繧九� |
---|
| 550 | * 縲蜿門セ励&繧後◆蜷�う繝ウ繧ケ繧ソ繝ウ繧ケ縺ョ繧ッ繝ゥ繧ケ繧らカイ鄒�噪縺ォ蜿門セ励☆繧� |
---|
[2] | 551 | * <p>
|
---|
[22] | 552 | * 縺薙%縺ァ繧、繝ウ繧ケ繧ソ繝ウ繧ケ縺ィ縺ッ縲〉df:type縺ョ荳サ隱槭→縺励※險倩ソー縺輔l縺ヲ縺�k繧ゅ�繧偵>縺�<br>
|
---|
| 553 | * 蜃ヲ逅�ッセ雎。繝��繧ソ繧暖raphURIs縺ァ謖�ョ壹☆繧九%縺ィ縺後〒縺阪k <br>
|
---|
[2] | 554 | * </p>
|
---|
| 555 | *
|
---|
[22] | 556 | * @param graphURIs
|
---|
| 557 | * 縲讀懃エ「蟇セ雎。縺ョgraph縺ョURI驟榊� 縲(null繧�聞縺�縺ョ驟榊�繧ょ庄)
|
---|
| 558 | * @param originInstance
|
---|
| 559 | * 襍キ轤ケ縺ィ縺ェ繧九う繝ウ繧ケ繧ソ繝ウ繧ケ縺ョURI縲��ull荳榊庄�� |
---|
| 560 | * @param limit
|
---|
| 561 | * 隗」縺ィ縺励※霑斐&繧後kInstanceLink驟榊�縺ョ髟キ縺輔�荳企剞蛟、繧呈欠螳壹☆繧九�荳企剞蛟、繧定ィュ螳壹@縺ェ縺�エ蜷医�0莉・荳九�蛟、繧呈欠螳壹☆繧�
|
---|
[2] | 562 | * @return InstanceLink縺ョ驟榊�縲ゅ%縺薙↓縺ッ縲∝叙蠕励&繧後◆繧ッ繝ゥ繧ケ縺ィ髢「菫ゅ▼縺代i繧後※縺�k繝励Ο繝代ユ繧」縲�未菫ゅ�蜷代″縺悟性縺セ繧後k縲� |
---|
| 563 | * @throws Exception
|
---|
| 564 | * @since 28.01.2014
|
---|
| 565 | */
|
---|
[22] | 566 | public InstanceLink[] getNextInstancesViaInstanceLink(String[] graphURIs,
|
---|
| 567 | String originInstance, int limit) throws Exception {
|
---|
[2] | 568 | StringBuffer queryStr = new StringBuffer();
|
---|
| 569 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
|
---|
| 570 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
|
---|
| 571 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
|
---|
| 572 | queryStr.append("SELECT DISTINCT ?pf ?pr ?ins ?c \n");
|
---|
| 573 | if (graphURIs != null) {
|
---|
| 574 | for (String graphURI : graphURIs) {
|
---|
| 575 | queryStr.append("FROM <");
|
---|
| 576 | queryStr.append(graphURI);
|
---|
| 577 | queryStr.append(">\n");
|
---|
| 578 | }
|
---|
| 579 | }
|
---|
| 580 | queryStr.append("WHERE{\n");
|
---|
[22] | 581 | // queryStr.append(" { ?c rdf:type rdfs:Class. }\n UNION\n { ?c rdf:type owl:Class. }\n");
|
---|
[2] | 582 | queryStr.append(" ?ins rdf:type ?c.\n");
|
---|
| 583 | queryStr.append(" { ?ins ?pr <");
|
---|
| 584 | queryStr.append(originInstance);
|
---|
| 585 | queryStr.append(">. }\n UNION { <");
|
---|
| 586 | queryStr.append(originInstance);
|
---|
| 587 | queryStr.append("> ?pf ?ins. }\n");
|
---|
| 588 |
|
---|
| 589 | queryStr.append(" FILTER (?c != rdf:Property)");
|
---|
| 590 |
|
---|
| 591 | queryStr.append("}\n");
|
---|
| 592 | if (limit > 0) {
|
---|
| 593 | queryStr.append("limit ");
|
---|
| 594 | queryStr.append(limit);
|
---|
| 595 | queryStr.append("\n");
|
---|
| 596 | }
|
---|
[22] | 597 |
|
---|
| 598 | // System.out.println(queryStr.toString());
|
---|
| 599 |
|
---|
[2] | 600 | Query query = QueryFactory.create(queryStr.toString());
|
---|
| 601 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
|
---|
| 602 | query);
|
---|
| 603 |
|
---|
| 604 | ResultSet results = qexec.execSelect();
|
---|
| 605 | HashMap<String, InstanceLink> insLinkMap = new HashMap<String, InstanceLink>();
|
---|
| 606 | for (; results.hasNext();) {
|
---|
| 607 | QuerySolution sol = results.next();
|
---|
| 608 | Resource proForward = sol.getResource("pf");
|
---|
| 609 | Resource proReverse = sol.getResource("pr");
|
---|
| 610 | Resource ins = sol.getResource("ins");
|
---|
| 611 | Resource cls = sol.getResource("c");
|
---|
| 612 | Direction direction = null;
|
---|
| 613 | String propURI = null;
|
---|
[22] | 614 | if (proForward != null) {
|
---|
| 615 | if (proReverse != null) {
|
---|
[2] | 616 | direction = Direction.both;
|
---|
[22] | 617 | } else {
|
---|
[2] | 618 | direction = Direction.forward;
|
---|
| 619 | }
|
---|
| 620 | propURI = proForward.getURI();
|
---|
[22] | 621 | } else {
|
---|
[2] | 622 | direction = Direction.reverse;
|
---|
| 623 | propURI = proReverse.getURI();
|
---|
| 624 | }
|
---|
| 625 | String clsURI = cls.getURI();
|
---|
| 626 | String insURI = ins.getURI();
|
---|
| 627 | String key = propURI + "\t" + insURI + "\t" + direction;
|
---|
[22] | 628 | if (insLinkMap.containsKey(key)) {
|
---|
[2] | 629 | InstanceLink insLink = insLinkMap.get(key);
|
---|
| 630 | insLink.addLinkedClassURI(clsURI);
|
---|
[22] | 631 | } else {
|
---|
| 632 | InstanceLink insLink = new InstanceLink(propURI, insURI,
|
---|
| 633 | new String[] { clsURI }, direction);
|
---|
[2] | 634 | insLinkMap.put(key, insLink);
|
---|
| 635 | }
|
---|
| 636 | }
|
---|
| 637 | qexec.close();
|
---|
| 638 | Collection<InstanceLink> values = insLinkMap.values();
|
---|
| 639 | return values.toArray(new InstanceLink[0]);
|
---|
| 640 | }
|
---|
| 641 |
|
---|
[22] | 642 | public LabelMap[] getLabels(String[] graphURIs, String[] resourceURIs,
|
---|
| 643 | String language) throws Exception {
|
---|
| 644 | if (resourceURIs == null || resourceURIs.length == 0) {
|
---|
[19] | 645 | return new LabelMap[0];
|
---|
| 646 | }
|
---|
| 647 | StringBuffer queryStr = new StringBuffer();
|
---|
| 648 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
|
---|
| 649 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
|
---|
| 650 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
|
---|
| 651 | queryStr.append("SELECT DISTINCT ?res ?label \n");
|
---|
| 652 | if (graphURIs != null) {
|
---|
| 653 | for (String graphURI : graphURIs) {
|
---|
| 654 | queryStr.append("FROM <");
|
---|
| 655 | queryStr.append(graphURI);
|
---|
| 656 | queryStr.append(">\n");
|
---|
| 657 | }
|
---|
| 658 | }
|
---|
| 659 | queryStr.append("WHERE{\n");
|
---|
| 660 | queryStr.append(" ?res rdfs:label ?label.\n");
|
---|
| 661 | queryStr.append(" FILTER(?res IN (");
|
---|
| 662 | boolean f = false;
|
---|
[22] | 663 | for (String resourceURI : resourceURIs) {
|
---|
| 664 | if (f) {
|
---|
[19] | 665 | queryStr.append(", ");
|
---|
| 666 | }
|
---|
| 667 | f = true;
|
---|
| 668 | queryStr.append("<");
|
---|
| 669 | queryStr.append(resourceURI);
|
---|
| 670 | queryStr.append(">");
|
---|
| 671 | }
|
---|
| 672 | queryStr.append("))\n");
|
---|
| 673 | queryStr.append("}");
|
---|
[22] | 674 |
|
---|
| 675 | System.out.println(queryStr.toString());
|
---|
| 676 |
|
---|
[19] | 677 | Query query = QueryFactory.create(queryStr.toString());
|
---|
| 678 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
|
---|
| 679 | query);
|
---|
| 680 |
|
---|
| 681 | ResultSet results = qexec.execSelect();
|
---|
| 682 | HashMap<String, LabelMap> lMap = new HashMap<String, LabelMap>();
|
---|
| 683 | for (; results.hasNext();) {
|
---|
| 684 | QuerySolution sol = results.next();
|
---|
| 685 | String uri = sol.getResource("res").getURI();
|
---|
| 686 | Literal literal = sol.getLiteral("label");
|
---|
[22] | 687 | if (literal != null) {
|
---|
[19] | 688 | String label = literal.getString();
|
---|
| 689 | String lang = literal.getLanguage();
|
---|
[22] | 690 | if (language != null && language.equals(lang)) {
|
---|
[19] | 691 | Label lbl = new Label(label, lang);
|
---|
[22] | 692 | if (lMap.containsKey(uri)) {
|
---|
[19] | 693 | LabelMap lm = lMap.get(uri);
|
---|
| 694 | lm.addLabel(lbl);
|
---|
[22] | 695 | } else {
|
---|
| 696 | LabelMap lm = new LabelMap(uri, new Label[] { lbl });
|
---|
[19] | 697 | lMap.put(uri, lm);
|
---|
| 698 | }
|
---|
| 699 | }
|
---|
| 700 | }
|
---|
| 701 | }
|
---|
| 702 | return lMap.values().toArray(new LabelMap[0]);
|
---|
| 703 | }
|
---|
[22] | 704 |
|
---|
[26] | 705 | public ClassLink[] countLinks(String[] graphURIs, String startClassURI,
|
---|
| 706 | ClassLink[] classLinks) throws Exception {
|
---|
| 707 | if (classLinks == null || classLinks.length == 0) {
|
---|
| 708 | return new ClassLink[0];
|
---|
| 709 | }
|
---|
| 710 | for (ClassLink classLink : classLinks) {
|
---|
| 711 | StringBuffer queryStr = new StringBuffer();
|
---|
| 712 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
|
---|
| 713 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
|
---|
| 714 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
|
---|
| 715 |
|
---|
| 716 | queryStr.append("SELECT (COUNT(?os) AS ?numOfLinks) \n");
|
---|
| 717 | if (graphURIs != null) {
|
---|
| 718 | for (String graphURI : graphURIs) {
|
---|
| 719 | queryStr.append("FROM <");
|
---|
| 720 | queryStr.append(graphURI);
|
---|
| 721 | queryStr.append(">\n");
|
---|
| 722 | }
|
---|
| 723 | }
|
---|
| 724 |
|
---|
| 725 | queryStr.append("WHERE{\n");
|
---|
| 726 | if (classLink.getDirection() == Direction.forward) {
|
---|
| 727 | queryStr.append("?is rdf:type <");
|
---|
| 728 | queryStr.append(startClassURI);
|
---|
| 729 | queryStr.append(">.\n");
|
---|
| 730 | queryStr.append("?os rdf:type <");
|
---|
| 731 | queryStr.append(classLink.getLinkedClassURI());
|
---|
| 732 | queryStr.append(">.\n");
|
---|
[42] | 733 | queryStr.append("?is <");
|
---|
| 734 | queryStr.append(classLink.getPropertyURI());
|
---|
| 735 | queryStr.append("> ?os.\n");
|
---|
[26] | 736 | queryStr.append("}");
|
---|
| 737 | } else {
|
---|
| 738 | if (classLink.getDirection() == Direction.forward) {
|
---|
| 739 | queryStr.append("?os rdf:type <");
|
---|
| 740 | queryStr.append(startClassURI);
|
---|
| 741 | queryStr.append(">.\n");
|
---|
| 742 | queryStr.append("?is rdf:type <");
|
---|
| 743 | queryStr.append(classLink.getLinkedClassURI());
|
---|
| 744 | queryStr.append(">.\n");
|
---|
[42] | 745 | queryStr.append("?is <");
|
---|
| 746 | queryStr.append(classLink.getPropertyURI());
|
---|
| 747 | queryStr.append("> ?os.\n");
|
---|
[26] | 748 | queryStr.append("}");
|
---|
| 749 | } else {
|
---|
| 750 | queryStr.append("?os rdf:type <");
|
---|
| 751 | queryStr.append(startClassURI);
|
---|
| 752 | queryStr.append(">.\n");
|
---|
| 753 | queryStr.append("?is rdf:type <");
|
---|
| 754 | queryStr.append(classLink.getLinkedClassURI());
|
---|
| 755 | queryStr.append(">.\n");
|
---|
[42] | 756 | queryStr.append("{?is <");
|
---|
| 757 | queryStr.append(classLink.getPropertyURI());
|
---|
| 758 | queryStr.append("> ?os.}\n");
|
---|
[26] | 759 | queryStr.append("UNION\n");
|
---|
[42] | 760 | queryStr.append("{?os <");
|
---|
| 761 | queryStr.append(classLink.getPropertyURI());
|
---|
| 762 | queryStr.append("> ?is.}\n");
|
---|
[26] | 763 | queryStr.append("}");
|
---|
| 764 | }
|
---|
| 765 | }
|
---|
| 766 | System.out.println(queryStr.toString());
|
---|
| 767 |
|
---|
| 768 | Query query = QueryFactory.create(queryStr.toString());
|
---|
| 769 | QueryExecution qexec = QueryExecutionFactory.sparqlService(
|
---|
| 770 | endpointURI, query);
|
---|
| 771 |
|
---|
| 772 | ResultSet results = qexec.execSelect();
|
---|
| 773 | if (results.hasNext()) {
|
---|
| 774 | QuerySolution sol = results.next();
|
---|
| 775 | Literal lit = sol.getLiteral("numOfLinks");
|
---|
| 776 | if (lit != null) {
|
---|
| 777 | int numOfLinks = lit.getInt();
|
---|
| 778 | classLink.setNumOfLinks(numOfLinks);
|
---|
| 779 | }
|
---|
| 780 | }
|
---|
| 781 | qexec.close();
|
---|
| 782 | }
|
---|
| 783 | return classLinks;
|
---|
| 784 | }
|
---|
| 785 |
|
---|
[36] | 786 | public SClass[] countInstances(String[] graphURIs, SClass[] classes)
|
---|
| 787 | throws Exception {
|
---|
| 788 | if (classes == null || classes.length == 0) {
|
---|
[31] | 789 | return new SClass[0];
|
---|
| 790 | }
|
---|
| 791 | HashMap<String, SClass> classMap = new HashMap<String, SClass>();
|
---|
[36] | 792 | for (SClass sc : classes) {
|
---|
[31] | 793 | classMap.put(sc.getClassURI(), sc);
|
---|
| 794 | }
|
---|
| 795 | StringBuffer queryStr = new StringBuffer();
|
---|
| 796 | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
|
---|
| 797 | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
|
---|
| 798 | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
|
---|
| 799 | queryStr.append("SELECT DISTINCT ?cls (COUNT(?is) AS ?numOfInstances)\n");
|
---|
| 800 | if (graphURIs != null) {
|
---|
| 801 | for (String graphURI : graphURIs) {
|
---|
| 802 | queryStr.append("FROM <");
|
---|
| 803 | queryStr.append(graphURI);
|
---|
| 804 | queryStr.append(">\n");
|
---|
| 805 | }
|
---|
| 806 | }
|
---|
| 807 | queryStr.append("WHERE{\n");
|
---|
| 808 | queryStr.append(" ?is rdf:type ?cls.\n");
|
---|
| 809 | queryStr.append(" FILTER(?cls IN (");
|
---|
| 810 | boolean f = false;
|
---|
| 811 | Set<String> clsSet = classMap.keySet();
|
---|
| 812 | for (String clsURI : clsSet) {
|
---|
| 813 | if (f) {
|
---|
| 814 | queryStr.append(", ");
|
---|
| 815 | }
|
---|
| 816 | f = true;
|
---|
| 817 | queryStr.append("<");
|
---|
| 818 | queryStr.append(clsURI);
|
---|
| 819 | queryStr.append(">");
|
---|
| 820 | }
|
---|
| 821 | queryStr.append("))\n");
|
---|
| 822 | queryStr.append("} GROUP BY ?cls");
|
---|
| 823 |
|
---|
| 824 | System.out.println(queryStr.toString());
|
---|
| 825 |
|
---|
| 826 | Query query = QueryFactory.create(queryStr.toString());
|
---|
| 827 | QueryExecution qexec = QueryExecutionFactory.sparqlService(endpointURI,
|
---|
| 828 | query);
|
---|
| 829 |
|
---|
| 830 | ResultSet results = qexec.execSelect();
|
---|
| 831 | for (; results.hasNext();) {
|
---|
| 832 | QuerySolution sol = results.next();
|
---|
| 833 | String uri = sol.getResource("cls").getURI();
|
---|
| 834 | SClass sc = classMap.get(uri);
|
---|
| 835 | Literal lit = sol.getLiteral("numOfInstances");
|
---|
| 836 | if (lit != null) {
|
---|
| 837 | int numOfInstances = lit.getInt();
|
---|
| 838 | sc.setNumOfInstances(numOfInstances);
|
---|
| 839 | }
|
---|
| 840 | }
|
---|
| 841 | qexec.close();
|
---|
[36] | 842 |
|
---|
[31] | 843 | return classes;
|
---|
| 844 | }
|
---|
| 845 |
|
---|
[2] | 846 | }
|
---|