Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/fixings/FixChartGenerator.java @ 3088:960307cf2adc
Moved current km to context and added an abstract generator for fix analysis
charts.
flys-artifacts/trunk@4686 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Raimund Renkert <raimund.renkert@intevation.de> |
|---|---|
| date | Mon, 18 Jun 2012 11:21:30 +0000 |
| parents | |
| children | 06ae0258269b |
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| 3087:4a76da133144 | 3088:960307cf2adc |
|---|---|
| 1 package de.intevation.flys.exports.fixings; | |
| 2 | |
| 3 import org.w3c.dom.Element; | |
| 4 import org.w3c.dom.Document; | |
| 5 | |
| 6 import org.apache.log4j.Logger; | |
| 7 | |
| 8 import java.io.OutputStream; | |
| 9 | |
| 10 import javax.xml.xpath.XPathConstants; | |
| 11 | |
| 12 import de.intevation.artifacts.ArtifactNamespaceContext; | |
| 13 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 14 import de.intevation.artifacts.CallContext; | |
| 15 | |
| 16 import de.intevation.flys.exports.XYChartGenerator; | |
| 17 | |
| 18 public abstract class FixChartGenerator | |
| 19 extends XYChartGenerator | |
| 20 { | |
| 21 private static Logger logger = Logger.getLogger(FixChartGenerator.class); | |
| 22 | |
| 23 public static final String XPATH_CHART_CURRENTKM = | |
| 24 "/art:action/art:attributes/art:currentKm"; | |
| 25 | |
| 26 | |
| 27 @Override | |
| 28 public void init(Document request, OutputStream out, CallContext context) { | |
| 29 super.init(request, out, context); | |
| 30 | |
| 31 logger.debug("currentKm = " + new Double(getCurrentKmFromRequest())); | |
| 32 context.putContextValue("currentKm", new Double(getCurrentKmFromRequest())); | |
| 33 } | |
| 34 | |
| 35 public double getCurrentKmFromRequest() { | |
| 36 Element km = (Element)XMLUtils.xpath( | |
| 37 request, | |
| 38 XPATH_CHART_CURRENTKM, | |
| 39 XPathConstants.NODE, | |
| 40 ArtifactNamespaceContext.INSTANCE); | |
| 41 | |
| 42 if (km == null) { | |
| 43 return -1d; | |
| 44 } | |
| 45 | |
| 46 String uri = ArtifactNamespaceContext.NAMESPACE_URI; | |
| 47 | |
| 48 String currentKm = km.getAttributeNS(uri, "km"); | |
| 49 try { | |
| 50 double d = Double.valueOf(currentKm).doubleValue(); | |
| 51 return d; | |
| 52 } | |
| 53 catch(NumberFormatException nfe) { | |
| 54 return -1d; | |
| 55 } | |
| 56 } | |
| 57 } | |
| 58 |