Mercurial > hg > TripleStoreManager

annotate src/de/mpiwg/itgroup/triplestoremanager/tools/GenerateLandingPage.java @ 3:6c8dac2c5214

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New tools export graph and generate landing page of an echo ressource
author dwinter
date Thu, 21 Jun 2012 12:24:29 +0200
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6c8dac2c5214 New tools export graph and generate landing page of an echo ressource
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1 package de.mpiwg.itgroup.triplestoremanager.tools;
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3 import java.io.FileWriter;
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4 import java.io.IOException;
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5
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6 import org.openrdf.model.Resource;
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7 import org.openrdf.model.Statement;
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8 import org.openrdf.model.Value;
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9 import org.openrdf.model.impl.ContextStatementImpl;
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10 import org.openrdf.model.impl.URIImpl;
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11 import org.openrdf.query.Binding;
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12 import org.openrdf.query.BindingSet;
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13 import org.openrdf.query.MalformedQueryException;
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14 import org.openrdf.query.QueryEvaluationException;
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15 import org.openrdf.query.TupleQueryResult;
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16 import org.openrdf.rio.RDFHandlerException;
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17 import org.openrdf.rio.trig.TriGWriter;
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19 import de.mpiwg.itgroup.triplestoremanager.exceptions.TripleStoreHandlerException;
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20 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler;
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21
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22 public class GenerateLandingPage {
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23
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24 /**
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25 * @param args
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26 */
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28 public static void main(String args[]) throws TripleStoreHandlerException, MalformedQueryException, QueryEvaluationException, RDFHandlerException, IOException {
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29 //TripleStoreHandler th = new TripleStoreHandler(
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30 // "jdbc:virtuoso://virtuoso.mpiwg-berlin.mpg.de:1112", args[0], args[1]);
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33 FileWriter fw = new FileWriter("/tmp/lp.ttl");
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34 TriGWriter turtleWriter = new TriGWriter(fw);
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35 turtleWriter.startRDF();
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36 if (args.length<3){
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37 System.out.println("Usage: connection String user password");
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38 System.out.println("eg: jdbc:virtuoso://virtuoso.mpiwg-berlin.mpg.de:1111 user password");
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39 System.exit(1);
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40 }
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41 TripleStoreHandler th = new TripleStoreHandler(
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42 args[0], args[1], args[2]);
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43
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44 String qs = String.format("select ?entity where {?entity a <http://ontologies.mpiwg-berlin.mpg.de/general/IndexMeta>}");
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46 TupleQueryResult res = th.querySPARQL(qs);
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48
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49 while(res.hasNext()){
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50 BindingSet bs = res.next();
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51 Binding entity = bs.getBinding("entity");
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52
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53 URIImpl y = new URIImpl("http://ontologies.mpiwg-berlin.mpg.de/general/hasLandingPage");
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54 URIImpl z =(URIImpl)entity.getValue();
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55 URIImpl z2= new URIImpl(z.toString().replace("/indexMeta", ""));
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57 URIImpl g = new URIImpl("http://indexMeta_ECHOE_landingPages");
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59 Statement stm = new ContextStatementImpl((Resource)entity.getValue(), y, z2,g);
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61 turtleWriter.handleStatement(stm);
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62 }
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63 turtleWriter.endRDF();
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64 fw.close();
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65 }
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66 }
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