Mercurial > dive4elements > gnv-client
view 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> |
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date | Mon, 04 Jan 2010 15:27:33 +0000 |
parents | |
children | 47ad9721e692 |
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/** * */ package de.intevation.gnv.math; import java.util.Collection; import org.apache.log4j.Logger; import com.vividsolutions.jts.geom.Coordinate; import de.intevation.gnv.geobackend.base.Result; import de.intevation.gnv.geobackend.base.query.QueryExecutor; import de.intevation.gnv.geobackend.base.query.QueryExecutorFactory; import de.intevation.gnv.geobackend.base.query.exception.QueryException; /** * @author Tim Englich <tim.englich@intevation.de> * */ public class QueriedXYDepth implements XYDepth { /** * the logger, used to log exceptions and additonaly information */ private static Logger log = Logger.getLogger(QueriedXYDepth.class); private String queryID = "rasterQuery"; private QueryExecutor queryExecutor = null; /** * Constructor */ public QueriedXYDepth() { this.queryExecutor = QueryExecutorFactory.getInstance().getQueryExecutor(); } /** * @see de.intevation.gnv.math.XYDepth#depth(com.vividsolutions.jts.geom.Coordinate) */ public double depth(Coordinate coordinate) { log.debug("QueriedXYDepth.depth for " + coordinate.x+" "+ coordinate.y); double resultValue = 0; Collection<Result> result = null; try { String[] filterValues = new String[]{"Point ("+coordinate.x+" "+coordinate.y+")"}; result = this.queryExecutor.executeQuery(this.queryID,filterValues); } catch (QueryException e) { log.error(e,e); } if (result != null){ if (!result.isEmpty()){ Result row = result.iterator().next(); resultValue = row.getDouble(0); }else{ resultValue = Double.NaN; } }else{ resultValue = Double.NaN; } return resultValue; } }