Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationSelect.java @ 658:ed7c901ee712

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If Artifact.feed() fails do not store invalid values in database. flys-artifacts/trunk@2062 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 07 Jun 2011 11:43:30 +0000
parents 929137ee8154
children 9a035ef7b595
rev   line source
383
dcc3cd962c0e Enhanced the transition model to reach a state that creates duration curves.
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1 package de.intevation.flys.artifacts.states;
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2
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3 import gnu.trove.TDoubleArrayList;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import de.intevation.artifacts.Artifact;
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8 import de.intevation.artifacts.CallContext;
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9
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10 import de.intevation.artifactdatabase.data.StateData;
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11
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12 import de.intevation.flys.artifacts.FLYSArtifact;
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13
383
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14
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15 /**
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16 * This state is used to realize the input of multiple locations as string. The
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17 * string should be a whitespace separated list of double values where each
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18 * double value represents a location.
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19 *
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20 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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21 */
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22 public class LocationSelect extends LocationDistanceSelect {
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23
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24 /** The logger used in this class.*/
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25 private static Logger logger = Logger.getLogger(LocationSelect.class);
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26
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27
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28 /** The name of the StateData object that stores the location string.*/
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29 public static final String FIELD_LOCATIONS = "ld_locations";
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30
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31
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32 public LocationSelect() {
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33 }
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34
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35
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36 @Override
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37 protected String getUIProvider() {
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38 return "location_panel";
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39 }
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40
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41
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42 @Override
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43 public boolean validate(Artifact artifact, CallContext context)
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44 throws IllegalArgumentException
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45 {
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46 logger.debug("LocationSelect.validate");
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47
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48 FLYSArtifact flys = (FLYSArtifact) artifact;
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49 StateData data = getData(flys, FIELD_LOCATIONS);
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50
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51 String locationStr = data != null ? (String) data.getValue() : null;
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52
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53 if (locationStr == null || locationStr.length() == 0) {
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54 logger.error("No locations given.");
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55 throw new IllegalArgumentException("error_empty_state");
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56 }
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57
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58 double[] minmax = getMinMaxDistance(artifact);
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59 double[] mm = extractLocations(locationStr);
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60
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61 logger.debug("Inserted min location: " + mm[0]);
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62 logger.debug("Inserted max location: " + mm[mm.length-1]);
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63
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64 return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length-1], 0d);
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65 }
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66
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67
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68 /**
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69 * This method takes a string that consist of whitespace separated double
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70 * values and returns the double values as array.
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71 *
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72 * @param locationStr The locations inserted in this state.
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73 *
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74 * @return the locations as array.
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75 */
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76 protected double[] extractLocations(String locationStr) {
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77 String[] tmp = locationStr.split(" ");
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78 TDoubleArrayList locations = new TDoubleArrayList();
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79
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80 for (String l: tmp) {
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81 try {
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82 locations.add(Double.parseDouble(l));
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83 }
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84 catch (NumberFormatException nfe) {
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85 logger.warn(nfe, nfe);
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86 }
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87 }
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88
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89 locations.sort();
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90
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91 return locations.toNativeArray();
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92 }
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93 }
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94 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org