Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/math/QueriedXYDepth.java @ 455:363236fc462d
Added Rasterdatasupport to VerticalCrossSections
gnv-artifacts/trunk@505 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Tim Englich <tim.englich@intevation.de> |
|---|---|
| date | Mon, 04 Jan 2010 15:27:33 +0000 |
| parents | |
| children | 47ad9721e692 |
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| 454:04cfb4e3da4f | 455:363236fc462d |
|---|---|
| 1 /** | |
| 2 * | |
| 3 */ | |
| 4 package de.intevation.gnv.math; | |
| 5 | |
| 6 import java.util.Collection; | |
| 7 | |
| 8 import org.apache.log4j.Logger; | |
| 9 | |
| 10 import com.vividsolutions.jts.geom.Coordinate; | |
| 11 | |
| 12 import de.intevation.gnv.geobackend.base.Result; | |
| 13 import de.intevation.gnv.geobackend.base.query.QueryExecutor; | |
| 14 import de.intevation.gnv.geobackend.base.query.QueryExecutorFactory; | |
| 15 import de.intevation.gnv.geobackend.base.query.exception.QueryException; | |
| 16 | |
| 17 | |
| 18 /** | |
| 19 * @author Tim Englich <tim.englich@intevation.de> | |
| 20 * | |
| 21 */ | |
| 22 public class QueriedXYDepth implements XYDepth { | |
| 23 | |
| 24 /** | |
| 25 * the logger, used to log exceptions and additonaly information | |
| 26 */ | |
| 27 private static Logger log = Logger.getLogger(QueriedXYDepth.class); | |
| 28 | |
| 29 private String queryID = "rasterQuery"; | |
| 30 | |
| 31 private QueryExecutor queryExecutor = null; | |
| 32 | |
| 33 /** | |
| 34 * Constructor | |
| 35 */ | |
| 36 public QueriedXYDepth() { | |
| 37 this.queryExecutor = QueryExecutorFactory.getInstance().getQueryExecutor(); | |
| 38 } | |
| 39 | |
| 40 /** | |
| 41 * @see de.intevation.gnv.math.XYDepth#depth(com.vividsolutions.jts.geom.Coordinate) | |
| 42 */ | |
| 43 public double depth(Coordinate coordinate) { | |
| 44 log.debug("QueriedXYDepth.depth for " + coordinate.x+" "+ coordinate.y); | |
| 45 double resultValue = 0; | |
| 46 Collection<Result> result = null; | |
| 47 try { | |
| 48 String[] filterValues = new String[]{"Point ("+coordinate.x+" "+coordinate.y+")"}; | |
| 49 result = this.queryExecutor.executeQuery(this.queryID,filterValues); | |
| 50 } catch (QueryException e) { | |
| 51 log.error(e,e); | |
| 52 } | |
| 53 | |
| 54 if (result != null){ | |
| 55 if (!result.isEmpty()){ | |
| 56 Result row = result.iterator().next(); | |
| 57 resultValue = row.getDouble(0); | |
| 58 }else{ | |
| 59 resultValue = Double.NaN; | |
| 60 } | |
| 61 }else{ | |
| 62 resultValue = Double.NaN; | |
| 63 } | |
| 64 return resultValue; | |
| 65 } | |
| 66 | |
| 67 } |