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annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/access/FixAnalysisAccess.java @ 4059:c63f0b4ac1b4

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Documentation.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Mon, 08 Oct 2012 12:11:45 +0200
parents 8160e62bbb3a
children acfd48384835
rev   line source
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50d61a2494cb FixA: Renamed FixationArtifactAccess to FixAnalysisAccess
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1 package de.intevation.flys.artifacts.access;
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2
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3 import de.intevation.artifactdatabase.data.StateData;
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4
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5 import de.intevation.flys.artifacts.FLYSArtifact;
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6
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7 import de.intevation.flys.artifacts.model.DateRange;
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8
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9 import java.util.Arrays;
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10 import java.util.Date;
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11
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12 import org.apache.log4j.Logger;
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13
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14 public class FixAnalysisAccess
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15 extends FixAccess
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16 {
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17 private static Logger log = Logger.getLogger(FixAnalysisAccess.class);
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18
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19 protected DateRange referencePeriod;
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20 protected DateRange [] analysisPeriods;
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21
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22 protected double [] qs;
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23
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24 public FixAnalysisAccess() {
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25 }
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26
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27 public FixAnalysisAccess(FLYSArtifact artifact) {
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28 super(artifact);
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29 }
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30
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31 public DateRange getReferencePeriod() {
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32 if (referencePeriod == null) {
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33 StateData refStart = artifact.getData("ref_start");
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34 StateData refEnd = artifact.getData("ref_end");
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35
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36 if (refStart == null || refEnd == null) {
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37 log.warn("missing 'ref_start' or 'ref_start' value");
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38 return null;
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39 }
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40
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41 try {
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42 long rs = Long.parseLong((String)refStart.getValue());
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43 long re = Long.parseLong((String)refEnd .getValue());
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44
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45 if (rs > re) { long t = rs; rs = re; re = t; }
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46
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47 Date from = new Date(rs);
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48 Date to = new Date(re);
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49 referencePeriod = new DateRange(from, to);
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50 }
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51 catch (NumberFormatException nfe) {
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52 log.warn("ref_start or ref_end is not an integer.");
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53 }
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54 }
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55
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56 return referencePeriod;
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57 }
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58
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59 public DateRange [] getAnalysisPeriods() {
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60 if (analysisPeriods == null) {
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61 analysisPeriods = getDateRange("ana_data");
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62 }
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63
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64 return analysisPeriods;
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65 }
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66
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67 /**
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68 * @return DateRange object ranging from eldest to youngest date
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69 * of analysis and reference periods.
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70 */
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71 public DateRange getDateRange() {
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72 DateRange refP = getReferencePeriod();
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73
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74 if (refP == null) {
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75 return null;
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76 }
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77
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78 Date from = refP.getFrom();
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79 Date to = refP.getTo();
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80
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81 DateRange[] rs = getAnalysisPeriods();
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82 for (DateRange r: rs) {
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83 if (r.getFrom().before(from)) {
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84 from = r.getFrom();
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85 }
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86 if (r.getTo().after(to)) {
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87 to = r.getTo();
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88 }
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89 }
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90
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91 return new DateRange(from, to);
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92 }
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94 public double [] getQs() {
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95 if (qs == null) {
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96 qs = getDoubleArray("qs");
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97 }
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98
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99 if (log.isDebugEnabled() && qs != null) {
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100 log.debug("qs: " + Arrays.toString(qs));
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101 }
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102 return qs;
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103 }
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104 }
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105 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org