Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/GaugeDischargeCurveFacet.java @ 4030:4bc58d6ee9db

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Add template for the gauge discharge curve description
author Björn Ricks <bjoern.ricks@intevation.de>
date Thu, 04 Oct 2012 14:12:03 +0200
parents b7bdef1831ac
children a5e1ca620f15
rev   line source
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4e1b3b4ef132 Add new Artifacts and State for displaying discharge curves at a gauge
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1 package de.intevation.flys.artifacts.model;
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2
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3 import java.util.Arrays;
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4 import java.util.Map;
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5
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6 import de.intevation.artifacts.Artifact;
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7 import de.intevation.artifacts.CallContext;
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8
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9 import de.intevation.artifactdatabase.state.DefaultFacet;
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10 import de.intevation.artifactdatabase.state.Facet;
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11
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12 import de.intevation.flys.artifacts.FLYSArtifact;
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13
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14 import de.intevation.flys.model.Gauge;
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16 import de.intevation.flys.utils.FLYSUtils;
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17
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18 import org.apache.log4j.Logger;
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19
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20 /**
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21 * A Facet that returns discharge curve data at a gauge
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22 *
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23 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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24 */
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25 public class GaugeDischargeCurveFacet
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26 extends DefaultFacet
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27 {
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28 private static final Logger log =
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29 Logger.getLogger(GaugeDischargeCurveFacet.class);
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30
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31 public GaugeDischargeCurveFacet() {
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32 super(0, "facet.gauge.discharge_curve", "facet.gauge.discharge_curve");
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33 }
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34
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35 @Override
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36 public Object getData(Artifact art, CallContext context) {
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37
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38 if (!(art instanceof FLYSArtifact)) {
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39 log.warn("Invalid artifact type");
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40 return null;
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41 }
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42
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43 FLYSArtifact flys = (FLYSArtifact)art;
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44
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45 String river = flys.getDataAsString("river");
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46
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47 Gauge gauge = FLYSUtils.getReferenceGauge(flys);
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48
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49 if (river == null || gauge == null) {
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50 log.warn("Unknown river or gauge");
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51 return null;
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52 }
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53
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54 String name = gauge.getName();
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55
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56 DischargeTables dt = new DischargeTables(river, name);
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57
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58 Map<String, double [][]> map = dt.getValues(100d);
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59
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60 double [][] values = map.get(name);
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61 if (values == null) {
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62 return null;
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63 }
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64 double [] kms = new double[values[0].length];
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65 Arrays.fill(kms, gauge.getStation().doubleValue());
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66 return new WQKms(kms, values[0], values[1], name);
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67 }
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68
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69 @Override
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70 public Facet deepCopy() {
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71 GaugeDischargeCurveFacet copy = new GaugeDischargeCurveFacet();
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72 copy.set(this);
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73 return copy;
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74 }
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75 }
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