Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/RangeState.java @ 5838:5aa05a7a34b7

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Rename modules to more fitting names.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 15:23:37 +0200
parents flys-artifacts/src/main/java/org/dive4elements/river/artifacts/states/RangeState.java@bd047b71ab37
children 4897a58c8746
rev   line source
5831
bd047b71ab37 Repaired internal references
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4949
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1 package org.dive4elements.river.artifacts.states;
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2
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3 import org.dive4elements.artifacts.Artifact;
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4
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5 import org.dive4elements.river.artifacts.FLYSArtifact;
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6
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7 import org.dive4elements.river.artifacts.access.RangeAccess;
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8
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9 import org.apache.log4j.Logger;
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10
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11
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12 /**
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13 * State in which km range is set.
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14 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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15 */
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16 public abstract class RangeState extends DefaultState {
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17
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18 /** The logger that is used in this class. */
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19 private Logger logger = Logger.getLogger(RangeState.class);
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20
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21
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22 public RangeState() {
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23 }
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24
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25 protected abstract double[] getMinMax(Artifact artifact);
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26
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27
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28 protected boolean validateBounds(
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29 double fromValid, double toValid,
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30 double from, double to)
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31 throws IllegalArgumentException
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32 {
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33 if (from < fromValid) {
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34 logger.error(
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35 "Invalid 'from'. " + from + " is smaller than " + fromValid);
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36 throw new IllegalArgumentException("error_feed_from_out_of_range");
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37 }
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38 else if (to > toValid) {
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39 logger.error(
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40 "Invalid 'to'. " + to + " is bigger than " + toValid);
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41 throw new IllegalArgumentException("error_feed_to_out_of_range");
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42 }
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43
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44 return true;
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45 }
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46
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47
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48 /**
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49 * Validates a given range with a given valid range.
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50 *
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51 * @param fromValid Valid lower value of the range.
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52 * @param toValid Valid upper value of the range.
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53 * @param from The lower value.
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54 * @param to The upper value.
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55 * @param step The step width.
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56 *
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57 * @return true, if everything was fine, otherwise an exception is thrown.
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58 */
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59 protected boolean validateBounds(
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60 double fromValid, double toValid,
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61 double from, double to, double step)
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62 throws IllegalArgumentException
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63 {
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64 logger.debug("RangeState.validateRange");
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65
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66 // XXX The step width is not validated at the moment!
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67 return validateBounds(fromValid, toValid, from, to);
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68 }
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69
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70
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71 @Override
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72 public boolean validate(Artifact artifact)
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73 throws IllegalArgumentException
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74 {
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75 FLYSArtifact flys = (FLYSArtifact) artifact;
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76
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77 try {
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78 RangeAccess rangeAccess = new RangeAccess(flys, null);
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79 double from = rangeAccess.getFrom();
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80 double to = rangeAccess.getTo();
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81 double step = rangeAccess.getStep();
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82
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83 double[] minmax = getMinMax(flys);
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84
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85 return validateBounds(minmax[0], minmax[1], from, to, step);
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86 }
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87 catch (NumberFormatException nfe) {
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88 throw new IllegalArgumentException("error_invalid_double_value");
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89 }
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90 catch (NullPointerException npe) {
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91 throw new IllegalArgumentException("error_empty_state");
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92 }
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93 }
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94 }
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95 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org