Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/injector/PNPInjector.java @ 8337:f5461750e5c7

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Avoid NPE if river is not accessible.
author "Tom Gottfried <tom@intevation.de>"
date Fri, 26 Sep 2014 17:22:51 +0200
parents 10917ec29625
children 47199406994a
rev   line source
8304
c4bd57172aa7 Added injector for PNP.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
1 package org.dive4elements.river.exports.injector;
c4bd57172aa7 Added injector for PNP.
Raimund Renkert <rrenkert@intevation.de>
parents:
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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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Raimund Renkert <rrenkert@intevation.de>
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4 import org.dive4elements.artifacts.Artifact;
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Raimund Renkert <rrenkert@intevation.de>
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5 import org.dive4elements.artifacts.CallContext;
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Raimund Renkert <rrenkert@intevation.de>
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6 import org.dive4elements.artifacts.ContextInjector;
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Raimund Renkert <rrenkert@intevation.de>
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7 import org.dive4elements.river.artifacts.D4EArtifact;
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Raimund Renkert <rrenkert@intevation.de>
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8 import org.dive4elements.river.artifacts.access.RiverAccess;
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f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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9 import org.dive4elements.river.model.River;
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Raimund Renkert <rrenkert@intevation.de>
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10 import org.dive4elements.river.model.Gauge;
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Raimund Renkert <rrenkert@intevation.de>
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11 import org.w3c.dom.Document;
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Raimund Renkert <rrenkert@intevation.de>
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12 import org.w3c.dom.Element;
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Raimund Renkert <rrenkert@intevation.de>
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13
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Raimund Renkert <rrenkert@intevation.de>
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14 import static org.dive4elements.river.exports.injector.InjectorConstants.CURRENT_KM;
c4bd57172aa7 Added injector for PNP.
Raimund Renkert <rrenkert@intevation.de>
parents:
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15 import static org.dive4elements.river.exports.injector.InjectorConstants.PNP;
c4bd57172aa7 Added injector for PNP.
Raimund Renkert <rrenkert@intevation.de>
parents:
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16 import static org.dive4elements.river.exports.injector.InjectorConstants.GAUGE_EPSILON;
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Raimund Renkert <rrenkert@intevation.de>
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17
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Raimund Renkert <rrenkert@intevation.de>
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18 public class PNPInjector
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Raimund Renkert <rrenkert@intevation.de>
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19 implements ContextInjector
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Raimund Renkert <rrenkert@intevation.de>
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20 {
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21
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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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22 private Logger log = Logger.getLogger(PNPInjector.class);
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Raimund Renkert <rrenkert@intevation.de>
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23 @Override
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Raimund Renkert <rrenkert@intevation.de>
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24 public void setup(Element cfg) {
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Raimund Renkert <rrenkert@intevation.de>
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25 // TODO Auto-generated method stub
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26
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Raimund Renkert <rrenkert@intevation.de>
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27 }
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Raimund Renkert <rrenkert@intevation.de>
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28
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Raimund Renkert <rrenkert@intevation.de>
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29 @Override
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Raimund Renkert <rrenkert@intevation.de>
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30 public void injectContext(
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Raimund Renkert <rrenkert@intevation.de>
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31 CallContext ctx,
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Raimund Renkert <rrenkert@intevation.de>
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32 Artifact artifact,
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Raimund Renkert <rrenkert@intevation.de>
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33 Document request
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Raimund Renkert <rrenkert@intevation.de>
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34 ) {
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Raimund Renkert <rrenkert@intevation.de>
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35 Object currentKm = ctx.getContextValue(CURRENT_KM);
c4bd57172aa7 Added injector for PNP.
Raimund Renkert <rrenkert@intevation.de>
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36 if (currentKm == null) {
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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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37 log.debug("no current km. not injecting pnp");
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Raimund Renkert <rrenkert@intevation.de>
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38 return;
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Raimund Renkert <rrenkert@intevation.de>
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39 }
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Raimund Renkert <rrenkert@intevation.de>
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40
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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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>
parents: 8304
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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>
parents: 8304
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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>
parents: 8304
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45 }
8337
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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46
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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47 River river = new RiverAccess((D4EArtifact)artifact).getRiver();
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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48 if (river == null) {
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
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49 log.error("River not accessible from artifact. Not injecting PNP");
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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50 return;
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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51 }
f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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52
8304
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Raimund Renkert <rrenkert@intevation.de>
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53 Gauge gauge =
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f5461750e5c7 Avoid NPE if river is not accessible.
"Tom Gottfried <tom@intevation.de>"
parents: 8326
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54 river.determineGaugeByStation(
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Raimund Renkert <rrenkert@intevation.de>
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55 km - GAUGE_EPSILON,
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Raimund Renkert <rrenkert@intevation.de>
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56 km + GAUGE_EPSILON);
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Raimund Renkert <rrenkert@intevation.de>
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57
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Raimund Renkert <rrenkert@intevation.de>
parents:
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58 if (gauge == null) {
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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59 log.debug("no gauge found at current km. not injecting pnp");
8304
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Raimund Renkert <rrenkert@intevation.de>
parents:
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60 return;
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Raimund Renkert <rrenkert@intevation.de>
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61 }
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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62 log.debug("injecting pnp: " + gauge.getDatum());
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Raimund Renkert <rrenkert@intevation.de>
parents:
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63 ctx.putContextValue(PNP, gauge.getDatum());
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Raimund Renkert <rrenkert@intevation.de>
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64 }
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65
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66 }
http://dive4elements.wald.intevation.org