import java.io.ByteArrayOutputStream; import java.io.IOException; import java.net.MalformedURLException; import net.yacy.cora.lod.JenaTripleStore; import net.yacy.cora.protocol.RequestHeader; import net.yacy.kelondro.data.meta.DigestURI; import net.yacy.kelondro.logging.Log; import com.hp.hpl.jena.query.QueryExecution; import com.hp.hpl.jena.query.QueryExecutionFactory; import com.hp.hpl.jena.query.QueryFactory; import com.hp.hpl.jena.query.QuerySolution; import com.hp.hpl.jena.query.ResultSet; import com.hp.hpl.jena.query.ResultSetFormatter; import de.anomic.http.server.HTTPDemon; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; public class Triple_p { public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, @SuppressWarnings("unused") final serverSwitch env) { final serverObjects prop = new serverObjects(); prop.put("display", 1); // Fixed to 1 prop.putHTML("mode_output", "no query performed"); String q = "PREFIX lln: \n"+ "PREFIX rdf: \n"+ "PREFIX xsd: \n"+ "SELECT ?resource ?pa\n"+ "WHERE {\n"+ "?resource lln:hasvalue ?pa .\n"+ "FILTER (xsd:float (?pa) > 21.000)\n"+ "}"; if (post != null) { if (post.containsKey("submit")) { // System.out.println (post.get("submit")); } if (post.containsKey("rdffileslist")) { String list = post.get("rdffileslist"); for (String s: list.split("\n")) { String newurl = s; try { DigestURI d = new DigestURI (s); if (d.getHost().endsWith(".yacy")) { newurl = d.getProtocol()+"://"+HTTPDemon.getAlternativeResolver().resolve(d.getHost())+d.getPath(); System.out.println (newurl); } JenaTripleStore.load(newurl); } catch (MalformedURLException e) { Log.logException(e); } catch (IOException e) { Log.logException(e); } } } if (post.containsKey("rdffile")) { JenaTripleStore.addFile(post.get("rdffile$file")); } if (post.containsKey("query")) { // Create a new query String queryString = post.get("query"); q = queryString; int count = 0; try { com.hp.hpl.jena.query.Query query = QueryFactory.create(queryString); // Execute the query and obtain results QueryExecution qe = QueryExecutionFactory.create(query, JenaTripleStore.model); ResultSet resultSet = qe.execSelect(); ByteArrayOutputStream sos = new ByteArrayOutputStream(); ResultSetFormatter.outputAsRDF(sos, "", resultSet); prop.putHTML("mode_rdfdump", sos.toString()); int scount = 0; while (resultSet.hasNext()) { QuerySolution s = resultSet.next(); prop.put("entries_"+scount+"_s", s.getResource(null).getURI()); prop.put("entries_"+scount+"_p", s.getResource(null).getURI()); prop.put("entries_"+scount+"_o", s.getResource(null).getURI()); scount ++; } prop.putHTML("entries", ""+scount); for (String s: resultSet.getResultVars()) { prop.putHTML("mode_output_"+count+"_caption", s); count ++; } } catch (Exception e) { prop.putHTML("mode_rdfdump", "error"); } prop.putHTML("mode_output", ""+count); } } prop.putHTML("mode_query", q); // return rewrite properties return prop; } }