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annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixDeviationFacet.java @ 4442:26774405c884

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Introduce a new FixingsFacet to add save access to the current Km Values which are accessed by a String like a map must be checked for null. The new FixingsFacet adds a getCurrentKm method that abstracts the direct access to the CallContext and always returns a valid double value.
author Björn Ricks <bjoern.ricks@intevation.de>
date Wed, 07 Nov 2012 14:06:03 +0100
parents e3c7a3228bc2
children acfd48384835
rev   line source
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Raimund Renkert <raimund.renkert@intevation.de>
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1 package de.intevation.flys.artifacts.model.fixings;
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2
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3 import de.intevation.artifacts.Artifact;
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4 import de.intevation.artifacts.CallContext;
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5
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6 import de.intevation.flys.artifacts.FLYSArtifact;
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7 import de.intevation.flys.artifacts.access.FixAnalysisAccess;
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8
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9 import de.intevation.flys.artifacts.model.CalculationResult;
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10 import de.intevation.flys.artifacts.model.FacetTypes;
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11 import de.intevation.flys.artifacts.model.Parameters;
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12
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13 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
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14
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15 import org.apache.log4j.Logger;
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16
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17
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18 /**
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19 * Facet to show the W|Q values.
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20 *
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21 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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22 */
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23 public class FixDeviationFacet
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24 extends FixingsFacet
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25 implements FacetTypes {
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26
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27 /** House logger. */
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28 private static Logger logger = Logger.getLogger(FixDeviationFacet.class);
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29
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30 public static final String [] STD_DEV_COLUMN = { "std-dev" };
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31
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32 /** Trivial Constructor. */
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33 public FixDeviationFacet() {
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34 }
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35
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36
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37 /**
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38 * @param name
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39 */
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40 public FixDeviationFacet(String name, String description) {
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41 super(0, name, description, ComputeType.ADVANCE, null, null);
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42 }
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43
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44 public FixDeviationFacet(int index, String name, String description) {
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45 super(index, name, description, ComputeType.ADVANCE, null, null);
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46 }
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47
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48
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49 /**
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50 * Returns the data this facet requires.
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51 *
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52 * @param artifact the owner artifact.
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53 * @param context the CallContext (ignored).
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54 *
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55 * @return the data.
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56 */
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57 @Override
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58 public Object getData(Artifact artifact, CallContext context) {
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59 logger.debug("FixDeviationFacet.getData");
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60 if (artifact instanceof FLYSArtifact) {
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61 FLYSArtifact flys = (FLYSArtifact)artifact;
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62 FixAnalysisAccess access = new FixAnalysisAccess(flys);
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63
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64 CalculationResult res =
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65 (CalculationResult) flys.compute(context,
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66 ComputeType.ADVANCE,
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67 false);
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68
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69 FixAnalysisResult result = (FixAnalysisResult) res.getData();
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70 double currentKm = getCurrentKm(context);
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71
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72 Parameters params = result.getParameters();
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73
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74 double[] stdDev =
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75 params.interpolate("km", currentKm, STD_DEV_COLUMN);
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76
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77 if (stdDev == null) {
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78 logger.warn("getData: stdDev == null at km " + currentKm);
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79 return null;
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80 }
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81
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82 return stdDev;
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83 }
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84 else {
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85 logger.debug("Not an instance of FixationArtifact.");
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86 return null;
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87 }
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88 }
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89
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90
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91 /**
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92 * Create a deep copy of this Facet.
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93 * @return a deep copy.
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94 */
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95 @Override
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96 public FixDerivateFacet deepCopy() {
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97 FixDerivateFacet copy = new FixDerivateFacet();
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98 copy.set(this);
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99 return copy;
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100 }
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101 }
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102 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org