Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixAnalysisPeriodsFacet.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>
parents:
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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
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8 import de.intevation.flys.artifacts.access.FixAnalysisAccess;
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9
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10 import de.intevation.flys.artifacts.model.CalculationResult;
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ae14f412ba10 SQ: finished the access stuff.
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11 import de.intevation.flys.artifacts.model.DateRange;
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12 import de.intevation.flys.artifacts.model.FacetTypes;
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13
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14 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
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15
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16 import de.intevation.flys.utils.KMIndex;
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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 * Facet to show W values for Q values at km for a date.
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22 *
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23 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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24 */
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25 public class FixAnalysisPeriodsFacet
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26 extends FixingsFacet
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27 implements FacetTypes {
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28
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29 /** House logger. */
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30 private static Logger logger = Logger.getLogger(FixAnalysisPeriodsFacet.class);
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31
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32 /** Trivial Constructor. */
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33 public FixAnalysisPeriodsFacet() {
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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 FixAnalysisPeriodsFacet(int index, String name, String description) {
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41 super(index,
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42 name,
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43 description,
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44 ComputeType.ADVANCE,
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45 null,
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46 null);
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47 }
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48
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49
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50 /**
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51 * Returns the data this facet requires.
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52 *
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53 * @param artifact the owner artifact.
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54 * @param context the CallContext (ignored).
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55 *
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56 * @return the data.
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57 */
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58 @Override
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59 public Object getData(Artifact artifact, CallContext context) {
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60 logger.debug("FixAnalysisPeriodsFacet.getData");
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61
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62 if (artifact instanceof FLYSArtifact) {
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63 FLYSArtifact flys = (FLYSArtifact)artifact;
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64 FixAnalysisAccess access = new FixAnalysisAccess(flys);
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65
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66 CalculationResult res =
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67 (CalculationResult) flys.compute(context,
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68 ComputeType.ADVANCE,
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69 false);
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70
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71 FixAnalysisResult result = (FixAnalysisResult) res.getData();
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72 double currentKm = getCurrentKm(context);
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73
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74 KMIndex<AnalysisPeriod []> kmPeriods = result.getAnalysisPeriods();
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75 KMIndex.Entry<AnalysisPeriod []> kmPeriodsEntry =
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76 kmPeriods.binarySearch(currentKm);
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77
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78 if (kmPeriodsEntry == null) {
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79 return null;
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80 }
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81
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82 AnalysisPeriod[] periods = kmPeriodsEntry.getValue();
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83
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84 if (periods == null) {
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85 return null;
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86 }
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87 DateRange[] dates = new DateRange[periods.length];
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88 for (int i = 0; i < periods.length; i++) {
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89 dates[i] = periods[i].getDateRange();
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90 }
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91 return dates;
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92 }
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93 else {
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94 logger.debug("Not an instance of FixationArtifact.");
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95 return null;
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96 }
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97 }
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98
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99
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100 /**
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101 * Create a deep copy of this Facet.
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102 * @return a deep copy.
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103 */
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104 @Override
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105 public FixAnalysisPeriodsFacet deepCopy() {
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106 FixAnalysisPeriodsFacet copy = new FixAnalysisPeriodsFacet();
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107 copy.set(this);
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108 return copy;
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109 }
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110 }
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111 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org