Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/injector/PNPInjector.java @ 8326:10917ec29625

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Inject current km and pnp into the context used to calculate W in cm at gauge.
author Raimund Renkert <rrenkert@intevation.de>
date Thu, 25 Sep 2014 17:23:12 +0200
parents c4bd57172aa7
children f5461750e5c7
rev   line source
8304
c4bd57172aa7 Added injector for PNP.
Raimund Renkert <rrenkert@intevation.de>
parents:
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1 package org.dive4elements.river.exports.injector;
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2
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10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
parents: 8304
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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.CallContext;
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6 import org.dive4elements.artifacts.ContextInjector;
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7 import org.dive4elements.river.artifacts.D4EArtifact;
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8 import org.dive4elements.river.artifacts.access.RiverAccess;
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9 import org.dive4elements.river.model.Gauge;
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10 import org.w3c.dom.Document;
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11 import org.w3c.dom.Element;
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12
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13 import static org.dive4elements.river.exports.injector.InjectorConstants.CURRENT_KM;
c4bd57172aa7 Added injector for PNP.
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14 import static org.dive4elements.river.exports.injector.InjectorConstants.PNP;
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15 import static org.dive4elements.river.exports.injector.InjectorConstants.GAUGE_EPSILON;
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16
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17 public class PNPInjector
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18 implements ContextInjector
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19 {
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20
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10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
parents: 8304
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21 private Logger log = Logger.getLogger(PNPInjector.class);
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22 @Override
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Raimund Renkert <rrenkert@intevation.de>
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23 public void setup(Element cfg) {
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24 // TODO Auto-generated method stub
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25
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26 }
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27
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28 @Override
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Raimund Renkert <rrenkert@intevation.de>
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29 public void injectContext(
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Raimund Renkert <rrenkert@intevation.de>
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30 CallContext ctx,
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Raimund Renkert <rrenkert@intevation.de>
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31 Artifact artifact,
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Raimund Renkert <rrenkert@intevation.de>
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32 Document request
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Raimund Renkert <rrenkert@intevation.de>
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33 ) {
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34 Object currentKm = ctx.getContextValue(CURRENT_KM);
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Raimund Renkert <rrenkert@intevation.de>
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35 if (currentKm == null) {
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Raimund Renkert <rrenkert@intevation.de>
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36 log.debug("no current km. not injecting pnp");
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37 return;
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38 }
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39
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Raimund Renkert <rrenkert@intevation.de>
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40 RiverAccess access = new RiverAccess((D4EArtifact)artifact);
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Raimund Renkert <rrenkert@intevation.de>
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41 Double km = Double.valueOf(currentKm.toString());
10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
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42 if (Double.isNaN(km) || Double.isInfinite(km)) {
10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
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43 log.debug("current km is NAN or infinte. not injecting pnp.");
10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
parents: 8304
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44 return;
10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
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45 }
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46 Gauge gauge =
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Raimund Renkert <rrenkert@intevation.de>
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47 access.getRiver().determineGaugeByStation(
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Raimund Renkert <rrenkert@intevation.de>
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48 km - GAUGE_EPSILON,
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49 km + GAUGE_EPSILON);
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50
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Raimund Renkert <rrenkert@intevation.de>
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51 if (gauge == null) {
8326
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Raimund Renkert <rrenkert@intevation.de>
parents: 8304
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52 log.debug("no gauge found at current km. not injecting pnp");
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Raimund Renkert <rrenkert@intevation.de>
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53 return;
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Raimund Renkert <rrenkert@intevation.de>
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54 }
8326
10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
parents: 8304
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55 log.debug("injecting pnp: " + gauge.getDatum());
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Raimund Renkert <rrenkert@intevation.de>
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56 ctx.putContextValue(PNP, gauge.getDatum());
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57 }
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58
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59 }
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