[17] | 1 | package hozo.sparql;
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[9] | 2 |
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| 3 | import java.io.BufferedReader;
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| 4 | import java.io.InputStreamReader;
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| 5 | import java.net.HttpURLConnection;
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| 6 | import java.net.URL;
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| 7 | import java.net.URLEncoder;
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| 8 | import java.util.ArrayList;
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| 9 | import java.util.HashMap;
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| 10 | import java.util.List;
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| 11 | import java.util.Map;
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| 12 |
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| 13 | import com.hp.hpl.jena.query.Query;
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| 14 | import com.hp.hpl.jena.query.QueryExecution;
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| 15 | import com.hp.hpl.jena.query.QueryExecutionFactory;
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| 16 | import com.hp.hpl.jena.query.QueryFactory;
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| 17 | import com.hp.hpl.jena.query.QuerySolution;
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| 18 | import com.hp.hpl.jena.query.ResultSet;
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| 19 | import com.hp.hpl.jena.query.ResultSetFactory;
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| 20 | import com.hp.hpl.jena.rdf.model.RDFNode;
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| 21 | import com.hp.hpl.jena.rdf.model.impl.ResourceImpl;
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| 22 | /**
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| 23 | * Sparql縺ィ縺ョ繝��繧ソ
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| 24 | * @author kato
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| 25 | *
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| 26 | */
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| 27 | public class PlainSparqlAccessor implements ThreadedSparqlAccessor {
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| 28 |
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| 29 | private EndpointSettings setting;
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| 30 |
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| 31 | private SparqlQueryListener queryListener;
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| 32 |
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| 33 | public PlainSparqlAccessor(EndpointSettings endpoint, SparqlQueryListener queryListener){
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| 34 | this.queryListener = queryListener;
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| 35 |
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| 36 | this.setting = endpoint;
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| 37 | }
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| 38 |
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| 39 | public PlainSparqlAccessor(EndpointSettings endpoint){
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| 40 | this(endpoint, null);
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| 41 | }
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| 42 |
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| 43 |
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| 44 | public EndpointSettings getSetting(){
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| 45 | return this.setting;
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| 46 | }
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| 47 | /**
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| 48 | * query繧貞娼縺�※邨先棡繧定ソ斐☆
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| 49 | * @param query
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| 50 | * @return
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| 51 | */
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| 52 | protected QueryExecution makeQuery(String queryString){
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| 53 | System.out.println("query:["+queryString+"]");
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| 54 | Query query = QueryFactory.create(queryString);
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| 55 | QueryExecution qe = QueryExecutionFactory.sparqlService(getSetting().getEndpoint(), query);
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| 56 |
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| 57 | return qe;
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| 58 | }
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| 59 |
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| 60 | /**
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| 61 | * Thread繧定オキ蜍輔@縺ヲquery螳溯。後r陦後≧縲らオ先棡縺ッlistener縺ォ霑斐k縲� |
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| 62 | * @param queryString query
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| 63 | * @param resultListener 邨先棡繧貞女縺大叙繧詰istener
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| 64 | */
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| 65 | public boolean executeQuery(String queryString, SparqlResultListener resultListener){
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| 66 |
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| 67 | Thread thread = new QueryThread(queryString, resultListener){
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| 68 | public void run(){
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| 69 | try {
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| 70 | getSparqlResultListener().resultReceived(new SparqlResultSet(executeQuery(getQueryString())));
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| 71 | } catch (Exception e) {
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| 72 | throw new RuntimeException(e);
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| 73 | }
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| 74 | }
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| 75 | };
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| 76 | thread.setUncaughtExceptionHandler(resultListener);
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| 77 | thread.start();
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| 78 | return true;
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| 79 | }
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| 80 |
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| 81 |
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| 82 | /**
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| 83 | * query螳溯。後r陦後≧縲らオ先棡縺ッ謌サ繧雁、縺ィ縺励※霑斐k縲� |
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| 84 | * @param queryString
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| 85 | * @return
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| 86 | * @throws Exception
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| 87 | */
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| 88 | public List<Map<String, RDFNode>> executeQuery(String queryString) throws Exception{
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| 89 |
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| 90 | List<Map<String, RDFNode>> ret = new ArrayList<Map<String, RDFNode>>();
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| 91 | QueryExecution qe = makeQuery(queryString);
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| 92 |
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| 93 | if (qe == null){
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| 94 | throw new Exception("Can't connect to endpoint");
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| 95 | }
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| 96 |
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| 97 | try {
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| 98 | // System.out.println("query:"+queryString);
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| 99 | if (this.queryListener != null){
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| 100 | queryListener.sparqlExecuted(queryString);
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| 101 | }
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| 102 | ResultSet results = null;
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| 103 | try {
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| 104 | if (!setting.isUseCustomParam()){
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| 105 | results = qe.execSelect();
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| 106 | } else {
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| 107 | results = customQuery(queryString);
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| 108 | }
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| 109 | List<String> keys = results.getResultVars();
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| 110 | while(results.hasNext()){
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| 111 | QuerySolution result = results.next();
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| 112 | HashMap<String, RDFNode> map = new HashMap<String, RDFNode>();
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| 113 | for (String key : keys){
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| 114 | RDFNode node = result.get(key);
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| 115 | map.put(key, node);
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| 116 | }
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| 117 | ret.add(map);
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| 118 | }
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| 119 | } catch(Exception e){
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| 120 | e.printStackTrace();
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| 121 | // results = customQuery(queryString);
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| 122 | }
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| 123 | } catch(Exception e){
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| 124 | e.printStackTrace();
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| 125 | throw e;
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| 126 | } finally {
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| 127 | qe.close();
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| 128 | }
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| 129 |
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| 130 | return ret;
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| 131 | }
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| 132 |
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| 133 | private ResultSet customQuery(String query) throws Exception {
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| 134 |
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| 135 | URL url = new URL(this.setting.getEndpoint() + "?" +setting.getQueryKey() + "=" + URLEncoder.encode(query, setting.getEncoding()) + "&" + setting.getOption());//POST縺吶k繝��繧ソ
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| 136 | HttpURLConnection conn = (HttpURLConnection)url.openConnection();
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| 137 | conn.setRequestProperty("Accept-Language", "ja");// 繝倥ャ繝繧定ィュ螳� |
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| 138 | conn.setRequestProperty("Referer", setting.getEndpoint());// 繝倥ャ繝繧定ィュ螳� |
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| 139 |
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| 140 | int resultType = setting.getResultType();
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| 141 | ResultSet ret = null;
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| 142 |
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| 143 | if (resultType == EndpointSettings.RESULT_TYPE_JSON){
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| 144 | ret = ResultSetFactory.fromJSON(conn.getInputStream());
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| 145 | } else if (resultType == EndpointSettings.RESULT_TYPE_XML){
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| 146 | ret = ResultSetFactory.fromXML(conn.getInputStream());
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| 147 | } else if (resultType == EndpointSettings.RESULT_TYPE_SSE){
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| 148 | ret = ResultSetFactory.fromSSE(conn.getInputStream());
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| 149 | } else if (resultType == EndpointSettings.RESULT_TYPE_TSV){
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| 150 | ret = ResultSetFactory.fromTSV(conn.getInputStream());
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| 151 | }
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| 152 | conn.disconnect();
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| 153 |
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| 154 | return ret;
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| 155 | }
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| 156 |
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| 157 |
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| 158 | /**
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| 159 | * word譁�ュ怜�繧貞性繧subject繧貞叙蠕励@縺ヲ霑斐☆
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| 160 | * @param word
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| 161 | * @param fullMatch 螳悟�荳閾エ讀懃エ「縺� |
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| 162 | * @param limit 讀懃エ「譛螟ァ謨ー
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| 163 | * @param offset 讀懃エ「繧ェ繝輔そ繝�ヨ
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| 164 | * @param type 讀懃エ「蟇セ雎。遞ョ蛻・
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| 165 | * @return
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| 166 | * @throws Exception
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| 167 | */
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| 168 | public SparqlResultSet findSubject(String word, boolean fullMatch, Integer limit, Integer offset, int type, String[] propList) throws Exception{
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| 169 | String query;
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| 170 | word = word.replace(" ", "%20");
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| 171 |
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| 172 | if (!fullMatch){
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| 173 | if (type == PlainSparqlAccessor.FIND_TARGET_SUBJECT){
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| 174 | query =
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| 175 | "select distinct ?s where {\n" +
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| 176 | "?s <http://www.w3.org/2000/01/rdf-schema#label> ?o \n" +
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| 177 | "FILTER(regex(str(?s), \""+word+"\", \"m\"))\n" +
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| 178 | "}";
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| 179 | } else if (type == PlainSparqlAccessor.FIND_TARGET_OBJECT){
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| 180 | query =
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| 181 | "select distinct ?s where {\n" +
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| 182 | "?s ?p ?o \n" +
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| 183 | "FILTER(regex(str(?o), \""+word+"\", \"m\"))\n" +
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| 184 | "}";
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| 185 | } else if (type == PlainSparqlAccessor.FIND_TARGET_SPECIFIC_OBJECT){
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| 186 | query =
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| 187 | "select distinct ?s where {\n";
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| 188 | query += getPropertySparql(propList);
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| 189 | query += "FILTER(regex(str(?o), \""+word+"\", \"m\"))\n" +
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| 190 | "}";
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| 191 | } else {
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| 192 | // TODO
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| 193 | query =
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| 194 | "select distinct ?s where {\n";
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| 195 | query += getPropertySparql(propList);
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| 196 | query += "FILTER(regex(str(?o), \""+word+"\", \"m\"))\n" +
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| 197 | "}";
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| 198 | }
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| 199 | } else {
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| 200 | if (type == PlainSparqlAccessor.FIND_TARGET_OBJECT){
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| 201 | query =
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| 202 | "select distinct ?s where \n{" +
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| 203 | "{?s ?p \""+word+"\"} UNION \n" +
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| 204 | "{?s ?p \""+word+"\"@en} UNION \n" +
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| 205 | "{?s ?p \""+word+"\"@ja} ";
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| 206 | String[] namespaces = setting.getNamespaceList();
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| 207 | if (namespaces != null && namespaces.length > 0){
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| 208 | query += "UNION \n";
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| 209 | }
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| 210 | for (int i=0; i<namespaces.length; i++){
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| 211 | String ns = namespaces[i];
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| 212 | query += "{?s ?p <"+ns+"/"+word+">} ";
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| 213 | if (i != namespaces.length-1){
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| 214 | query += "UNION \n";
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| 215 | } else {
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| 216 | query += "\n";
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| 217 | }
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| 218 | }
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| 219 |
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| 220 | query += "}";
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| 221 | } else if (type == PlainSparqlAccessor.FIND_TARGET_SPECIFIC_OBJECT){
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| 222 | query = // TODO
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| 223 | "select distinct ?s where \n{";
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| 224 | query += getPropertySparql(propList, word);
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| 225 | query += "}";
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| 226 | } else if (type == PlainSparqlAccessor.FIND_TARGET_SUBJECT){
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| 227 | String[] namespaces = setting.getNamespaceList();
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| 228 |
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| 229 | List<Map<String, RDFNode>> ret = new ArrayList<Map<String,RDFNode>>();
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| 230 | for (int i=0; i<namespaces.length; i++){
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| 231 | String ns = namespaces[i];
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| 232 | query = "select ?o where {\n"+
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| 233 | "<"+ns+"/"+word+"> ?p ?o \n";
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| 234 | query += "}";
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| 235 | List<Map<String, RDFNode>> temp = executeQuery(query);
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| 236 | if (temp != null && temp.size() > 0){
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| 237 | HashMap<String, RDFNode> node = new HashMap<String, RDFNode>();
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| 238 | node.put("s", new ResourceImpl(ns+"/"+word));
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| 239 | ret.add(node);
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| 240 | }
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| 241 |
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| 242 | }
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| 243 | // TODO 邨先棡縺ョ譛螟ァ謨ー縺ッnamespaces.size縺ェ縺ョ縺ァ蜴ウ蟇�↓縺ッLIMIT, OFFSET繧ょョ夂セゥ縺ァ縺阪k繧医≧縺ォ縺励※縺翫>縺滓婿縺瑚憶縺� |
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| 244 | return new SparqlResultSet(ret, false);
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| 245 | } else {
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| 246 | // TODO
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| 247 | query =
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| 248 | "select distinct ?s where {\n";
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| 249 | query += getPropertySparql(propList, word);
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| 250 | query += "}";
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| 251 | }
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| 252 | }
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| 253 | if (limit != null && limit > 0){
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| 254 | query +="\n LIMIT " + String.valueOf(limit+1);
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| 255 | }
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| 256 | if (offset != null && offset > 0){
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| 257 | query += "\n OFFSET " + String.valueOf(offset);
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| 258 | }
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| 259 |
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| 260 | List<Map<String, RDFNode>> result = executeQuery(query);
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| 261 | SparqlResultSet ret = new SparqlResultSet(result);
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| 262 | if (limit != null){
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| 263 | if (result != null && result.size() > limit){
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| 264 | result = result.subList(0, limit);
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| 265 | ret.setDefaultResult(result);
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| 266 | ret.setHasNext(true);
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| 267 | }
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| 268 | }
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| 269 |
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| 270 | return ret;
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| 271 | }
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| 272 |
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| 273 | private String getPropertySparql(String[] propList){
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| 274 | StringBuilder sb = new StringBuilder();
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| 275 | if (propList == null){
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| 276 | // 蠢オ縺ョ縺溘a
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| 277 | propList = new String[]{"http://www.w3.org/2000/01/rdf-schema#label"};
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| 278 | }
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| 279 |
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| 280 | if (propList.length == 1){
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| 281 | sb.append("?s <");
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| 282 | sb.append(propList[0]);
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| 283 | sb.append("> ?o \n");
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| 284 | } else {
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| 285 | sb.append("{\n");
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| 286 | for (int i=0; i<propList.length; i++){
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| 287 | sb.append("{?s <");
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| 288 | sb.append(propList[i]);
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| 289 | sb.append("> ?o ");
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| 290 | if (i == propList.length-1){
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| 291 | sb.append("}\n");
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| 292 | } else {
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| 293 | sb.append("} UNION \n");
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| 294 | }
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| 295 | }
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| 296 |
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| 297 | sb.append("}");
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| 298 | }
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| 299 | return sb.toString();
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| 300 | }
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| 301 |
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| 302 | private String getPropertySparql(String[] propList, String word){
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| 303 | StringBuilder sb = new StringBuilder();
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| 304 | if (propList == null){
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| 305 | // 蠢オ縺ョ縺溘a
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| 306 | propList = new String[]{"http://www.w3.org/2000/01/rdf-schema#label"};
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| 307 | }
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| 308 |
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| 309 | sb.append("{\n");
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| 310 | for (int i=0; i<propList.length; i++){
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| 311 |
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| 312 | sb.append("{?s <" +propList[i] + "> \""+word+"\"} UNION \n");
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| 313 | sb.append("{?s <" +propList[i] + "> \""+word+"\"@en} UNION \n");
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| 314 | sb.append("{?s <" +propList[i] + "> \""+word+"\"@ja");
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| 315 | if (i == propList.length-1){
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| 316 | sb.append("}\n");
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| 317 | } else {
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| 318 | sb.append("} UNION \n");
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| 319 | }
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| 320 | }
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| 321 |
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| 322 | sb.append("}");
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| 323 | return sb.toString();
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| 324 |
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| 325 | }
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| 326 |
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| 327 |
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| 328 | /**
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| 329 | * Thread繧定オキ蜍輔@縺ヲword譁�ュ怜�繧貞性繧subject繧貞叙蠕励@縺ヲ霑斐☆縲らオ先棡縺ッlistener縺ォ霑斐k縲� |
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| 330 | * @param word 讀懃エ「譁�ュ怜�
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| 331 | * @param resultListener 邨先棡繧貞女縺大叙繧詰istener
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| 332 | */
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| 333 | public boolean findSubject(String word, boolean fullMatch, Integer limit, Integer offset, int type, String[] propList, SparqlResultListener resultListener){
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| 334 |
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| 335 | Thread thread = new QueryThread(word, new Object[]{new Boolean(fullMatch), limit, offset, new Integer(type), propList}, resultListener){
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| 336 | public void run(){
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| 337 | try {
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| 338 | Boolean fullMatch = (Boolean)((Object[])getOption())[0];
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| 339 | Integer limit = (Integer)((Object[])getOption())[1];
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| 340 | Integer offset = (Integer)((Object[])getOption())[2];
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| 341 | Integer type = (Integer)((Object[])getOption())[3];
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| 342 | String[] propList = (String[])((Object[])getOption())[4];
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| 343 | getSparqlResultListener().resultReceived(findSubject(getQueryString(), fullMatch, limit, offset, type, propList));
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| 344 | } catch(Exception e){
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| 345 | throw new RuntimeException(e);
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| 346 | }
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| 347 | }
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| 348 | };
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| 349 | thread.setUncaughtExceptionHandler(resultListener);
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| 350 | thread.start();
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| 351 | return true;
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| 352 |
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| 353 | }
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| 354 |
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| 355 | /**
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| 356 | * 謖�ョ壹&繧後◆subject繧呈戟縺、triple��ubject縺ッ遒コ螳壹@縺ヲ縺�k縺ョ縺ァproperty縺ィobject縺ョ縺ソ�峨r霑斐☆
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| 357 | * @param triple
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| 358 | * @return
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| 359 | * @throws Exception
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| 360 | */
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| 361 | public List<Map<String, RDFNode>> findTripleFromSubject(String subject) throws Exception{
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| 362 | subject = subject.replace(" ", "%20");
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| 363 | String query =
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| 364 | "select ?p ?o where {\n" +
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| 365 | "<" + subject + "> ?p ?o\n"+
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| 366 | "}";
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| 367 |
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| 368 | return executeQuery(query);
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| 369 | }
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| 370 |
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| 371 | public boolean findTripleFromSubject(String subject, SparqlResultListener listener){
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| 372 |
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| 373 | Thread thread = new QueryThread(subject, listener){
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| 374 | public void run(){
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| 375 | try {
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| 376 | getSparqlResultListener().resultReceived(new SparqlResultSet(findTripleFromSubject(getQueryString())));
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| 377 | } catch(Exception e){
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| 378 | throw new RuntimeException(e);
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| 379 | }
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| 380 | }
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| 381 | };
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| 382 | thread.setUncaughtExceptionHandler(listener);
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| 383 | thread.start();
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| 384 | return true;
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| 385 |
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| 386 | }
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| 387 |
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| 388 |
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| 389 | @Override
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| 390 | public List<Map<String, RDFNode>> findPropertyList() throws Exception {
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| 391 | // TODO 譛ャ譚・縺ッdistinct縺ォ縺励◆縺�′縺昴l縺縺ィ驥阪>endpoint縺後≠繧� |
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| 392 | List<Map<String, RDFNode>> ret = new ArrayList<Map<String,RDFNode>>();
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| 393 | Map<String, RDFNode> result = new HashMap<String, RDFNode>();
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| 394 | ret.add(result);
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| 395 | String query =
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| 396 | "select ?s {\n" +
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| 397 | "?s ?p ?o\n"+
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| 398 | "} LIMIT 10";
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| 399 | List<Map<String, RDFNode>> subjects = executeQuery(query);
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| 400 | for (Map<String, RDFNode> subjectMap : subjects){
|
---|
| 401 | RDFNode subject = subjectMap.get("s");
|
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| 402 | query =
|
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| 403 | "select distinct ?p where {\n" +
|
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| 404 | "<" + subject + "> ?p ?o\n"+
|
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| 405 | "}";
|
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| 406 | List<Map<String, RDFNode>> properties = executeQuery(query);
|
---|
| 407 | for (Map<String, RDFNode> propertyMap : properties){
|
---|
| 408 | RDFNode property = propertyMap.get("p");
|
---|
| 409 | // property縺ョ蝣エ蜷医�縲∵綾繧翫�Map縺ョ蠖「蠑上r螟峨∴繧� |
---|
| 410 | // key:隕∫エ遞ョ蛻・縲�value:隕∫エ縲縺ァ縺ッ縺ェ縺上� |
---|
| 411 | // key:隕∫エ縺ョ譁�ュ怜�陦ィ迴セ縲�value:隕∫エ縲縺ィ縺吶k縲� |
---|
| 412 | // �郁ヲ∫エ遞ョ蛻・縺檎「コ螳壹@縺ヲ縺�k縺ョ縺ィ縲∬ヲ∫エ縺ョ驥崎、�r蜑企勁縺吶k縺溘a�� |
---|
| 413 | result.put(property.toString(), property);
|
---|
| 414 | System.out.println("p["+property.toString()+"]");
|
---|
| 415 | }
|
---|
| 416 | }
|
---|
| 417 |
|
---|
| 418 | return ret;
|
---|
| 419 | }
|
---|
| 420 |
|
---|
| 421 | @Override
|
---|
| 422 | public boolean findPropertyList(SparqlResultListener listener) {
|
---|
| 423 | Thread thread = new QueryThread(null, listener){
|
---|
| 424 | public void run(){
|
---|
| 425 | try {
|
---|
| 426 | getSparqlResultListener().resultReceived(new SparqlResultSet(findPropertyList()));
|
---|
| 427 | } catch(Exception e){
|
---|
| 428 | throw new RuntimeException(e);
|
---|
| 429 | }
|
---|
| 430 | }
|
---|
| 431 | };
|
---|
| 432 | thread.setUncaughtExceptionHandler(listener);
|
---|
| 433 | thread.start();
|
---|
| 434 | return true;
|
---|
| 435 | }
|
---|
| 436 |
|
---|
| 437 |
|
---|
| 438 | public static void main(String[] args){
|
---|
| 439 |
|
---|
| 440 | try {
|
---|
| 441 | URL url = new URL("http://www.wikipediaontology.org/query/?q=" + URLEncoder.encode("select * {?s ?p ?o}", "UTF-8") + "&type=xml&LIMIT=100");//POST縺吶k繝��繧ソ
|
---|
| 442 | HttpURLConnection conn = (HttpURLConnection)url.openConnection();
|
---|
| 443 | conn.setRequestProperty("User-Agent", "test");// 繝倥ャ繝繧定ィュ螳� |
---|
| 444 | conn.setRequestProperty("Accept-Language", "ja");// 繝倥ャ繝繧定ィュ螳� |
---|
| 445 | conn.setRequestProperty("Referer", "http://www.wikipediaontology.org/query/");// 繝倥ャ繝繧定ィュ螳� |
---|
| 446 | InputStreamReader isr = new java.io.InputStreamReader(conn.getInputStream(), "UTF-8");
|
---|
| 447 | BufferedReader br = new java.io.BufferedReader(isr);
|
---|
| 448 |
|
---|
| 449 | // 蜿嶺ソ。縺励◆繧ケ繝医Μ繝シ繝繧定。ィ遉コ
|
---|
| 450 | String line = null;
|
---|
| 451 | while (null != (line = br.readLine())) {
|
---|
| 452 | System.out.println(line);
|
---|
| 453 | }
|
---|
| 454 |
|
---|
| 455 | // 繧ケ繝医Μ繝シ繝縺ェ繧峨�縺ォ謗・邯壹r繧ッ繝ュ繝シ繧コ
|
---|
| 456 | br.close();
|
---|
| 457 | conn.disconnect();
|
---|
| 458 | } catch(Exception e){
|
---|
| 459 | e.printStackTrace();
|
---|
| 460 | }
|
---|
| 461 |
|
---|
| 462 | }
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | class QueryThread extends Thread {
|
---|
| 466 |
|
---|
| 467 | private String queryString;
|
---|
| 468 | private Object option;
|
---|
| 469 | private SparqlResultListener listener;
|
---|
| 470 |
|
---|
| 471 | public QueryThread(String queryString, Object option, SparqlResultListener listener){
|
---|
| 472 | this.queryString = queryString;
|
---|
| 473 | this.option = option;
|
---|
| 474 | this.listener = listener;
|
---|
| 475 | }
|
---|
| 476 |
|
---|
| 477 | public QueryThread(String queryString, SparqlResultListener listener){
|
---|
| 478 | this(queryString, null, listener);
|
---|
| 479 | }
|
---|
| 480 |
|
---|
| 481 | protected String getQueryString(){
|
---|
| 482 | return this.queryString;
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | protected Object getOption(){
|
---|
| 486 | return this.option;
|
---|
| 487 | }
|
---|
| 488 |
|
---|
| 489 | protected SparqlResultListener getSparqlResultListener(){
|
---|
| 490 | return this.listener;
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 | }
|
---|
| 494 |
|
---|