Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/exports/injector/FixWQInjector.java @ 8326:10917ec29625
Inject current km and pnp into the context used to calculate W in cm at gauge.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Thu, 25 Sep 2014 17:23:12 +0200 |
parents | c7ca9c228314 |
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rev | line source |
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8251
c7ca9c228314
Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
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1 package org.dive4elements.river.exports.injector; |
c7ca9c228314
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2 |
c7ca9c228314
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3 import org.apache.log4j.Logger; |
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4 import org.dive4elements.artifacts.Artifact; |
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5 import org.dive4elements.artifacts.ArtifactNamespaceContext; |
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6 import org.dive4elements.artifacts.CallContext; |
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7 import org.dive4elements.artifacts.ContextInjector; |
c7ca9c228314
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8 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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9 import org.dive4elements.river.artifacts.D4EArtifact; |
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10 import org.dive4elements.river.artifacts.access.RangeAccess; |
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11 import org.w3c.dom.Document; |
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12 import org.w3c.dom.Element; |
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13 |
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14 import static org.dive4elements.river.exports.injector.InjectorConstants.CURRENT_KM; |
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15 |
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16 |
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17 public class FixWQInjector |
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18 implements ContextInjector |
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19 { |
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20 private static final Logger log = Logger.getLogger(FixWQInjector.class); |
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21 |
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22 public static final Double INVALID_KM = Double.valueOf(-1d); |
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23 public static final String XPATH_CHART_CURRENTKM = |
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24 "/art:action/art:attributes/art:currentKm/@art:km"; |
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25 @Override |
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26 public void setup(Element cfg) { |
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27 |
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28 } |
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29 |
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30 @Override |
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31 public void injectContext( |
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32 CallContext ctx, |
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33 Artifact artifact, |
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34 Document request) { |
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35 Double km = getCurrentKmFromRequest(request); |
8326
10917ec29625
Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
parents:
8251
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36 if (Double.isNaN(km)) { |
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c7ca9c228314
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37 RangeAccess access = new RangeAccess((D4EArtifact)artifact); |
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38 km = access.getFrom(); |
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39 log.debug("from access"); |
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40 } |
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41 log.debug("current km: " + km); |
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42 ctx.putContextValue(CURRENT_KM, km); |
c7ca9c228314
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43 } |
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44 |
c7ca9c228314
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45 private Double getCurrentKmFromRequest(Document request) { |
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46 |
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47 String km = XMLUtils.xpathString( |
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48 request, |
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49 XPATH_CHART_CURRENTKM, |
c7ca9c228314
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parents:
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50 ArtifactNamespaceContext.INSTANCE); |
c7ca9c228314
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51 |
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52 if (km == null) { |
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53 return Double.NaN; |
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54 } |
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55 |
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56 try { |
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57 return Double.valueOf(km); |
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58 } |
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59 catch (NumberFormatException nfe) { |
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60 return Double.NaN; |
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61 } |
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62 } |
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63 } |