Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/exports/injector/FixWQInjector.java @ 8251:c7ca9c228314
Added context injectors for discharge curves.
| author | Raimund Renkert <rrenkert@intevation.de> |
|---|---|
| date | Wed, 10 Sep 2014 10:01:11 +0200 |
| parents | |
| children | 10917ec29625 |
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| 8240:61fd22f65bd4 | 8251:c7ca9c228314 |
|---|---|
| 1 package org.dive4elements.river.exports.injector; | |
| 2 | |
| 3 import org.apache.log4j.Logger; | |
| 4 import org.dive4elements.artifacts.Artifact; | |
| 5 import org.dive4elements.artifacts.ArtifactNamespaceContext; | |
| 6 import org.dive4elements.artifacts.CallContext; | |
| 7 import org.dive4elements.artifacts.ContextInjector; | |
| 8 import org.dive4elements.artifacts.common.utils.XMLUtils; | |
| 9 import org.dive4elements.river.artifacts.D4EArtifact; | |
| 10 import org.dive4elements.river.artifacts.access.RangeAccess; | |
| 11 import org.w3c.dom.Document; | |
| 12 import org.w3c.dom.Element; | |
| 13 | |
| 14 import static org.dive4elements.river.exports.injector.InjectorConstants.CURRENT_KM; | |
| 15 | |
| 16 | |
| 17 public class FixWQInjector | |
| 18 implements ContextInjector | |
| 19 { | |
| 20 private static final Logger log = Logger.getLogger(FixWQInjector.class); | |
| 21 | |
| 22 public static final Double INVALID_KM = Double.valueOf(-1d); | |
| 23 public static final String XPATH_CHART_CURRENTKM = | |
| 24 "/art:action/art:attributes/art:currentKm/@art:km"; | |
| 25 @Override | |
| 26 public void setup(Element cfg) { | |
| 27 | |
| 28 } | |
| 29 | |
| 30 @Override | |
| 31 public void injectContext( | |
| 32 CallContext ctx, | |
| 33 Artifact artifact, | |
| 34 Document request) { | |
| 35 Double km = getCurrentKmFromRequest(request); | |
| 36 if (km == Double.NaN) { | |
| 37 RangeAccess access = new RangeAccess((D4EArtifact)artifact); | |
| 38 km = access.getFrom(); | |
| 39 log.debug("from access"); | |
| 40 } | |
| 41 log.debug("current km: " + km); | |
| 42 ctx.putContextValue(CURRENT_KM, km); | |
| 43 } | |
| 44 | |
| 45 private Double getCurrentKmFromRequest(Document request) { | |
| 46 | |
| 47 String km = XMLUtils.xpathString( | |
| 48 request, | |
| 49 XPATH_CHART_CURRENTKM, | |
| 50 ArtifactNamespaceContext.INSTANCE); | |
| 51 | |
| 52 if (km == null) { | |
| 53 return Double.NaN; | |
| 54 } | |
| 55 | |
| 56 try { | |
| 57 return Double.valueOf(km); | |
| 58 } | |
| 59 catch (NumberFormatException nfe) { | |
| 60 return Double.NaN; | |
| 61 } | |
| 62 } | |
| 63 } |