Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/injector/KmFromGaugeNumberInjector.java @ 8349:7341bebc79d0

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Let injectors be strictly distinct from each other and give more meaningful names (they know what they do, not where they will be used. The latter is configuration).
author Tom Gottfried <tom@intevation.de>
date Wed, 01 Oct 2014 12:23:39 +0200
parents artifacts/src/main/java/org/dive4elements/river/exports/injector/HistoricalDischargeInjector.java@5ffbf97766f7
children 16dc2da05aef
rev   line source
8251
c7ca9c228314 Added context injectors for discharge curves.
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1 package org.dive4elements.river.exports.injector;
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2
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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.HistoricalDischargeAccess;
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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;
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14
8349
7341bebc79d0 Let injectors be strictly distinct from each other and give more meaningful names (they know what they do, not where they will be used. The latter is configuration).
Tom Gottfried <tom@intevation.de>
parents: 8255
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15 public class KmFromGaugeNumberInjector
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16 implements ContextInjector
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17 {
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18 private static Logger log =
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7341bebc79d0 Let injectors be strictly distinct from each other and give more meaningful names (they know what they do, not where they will be used. The latter is configuration).
Tom Gottfried <tom@intevation.de>
parents: 8255
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19 Logger.getLogger(KmFromGaugeNumberInjector.class);
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20
c7ca9c228314 Added context injectors for discharge curves.
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21 @Override
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22 public void setup(Element cfg) {
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23
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24 }
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25
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26 @Override
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27 public void injectContext(
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28 CallContext ctx,
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29 Artifact artifact,
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30 Document request
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31 ) {
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32 HistoricalDischargeAccess access =
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33 new HistoricalDischargeAccess((D4EArtifact)artifact);
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34 Long gaugeNumber = access.getOfficialGaugeNumber();
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35 if (gaugeNumber == null) {
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36 return;
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37 }
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38 Gauge gauge = Gauge.getGaugeByOfficialNumber(gaugeNumber);
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39 if (gauge == null) {
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40 return;
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41 }
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42 double km = gauge.getStation().doubleValue();
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43 ctx.putContextValue(CURRENT_KM, km);
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44 }
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45 }
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