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annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/RangeState.java @ 4867:c4973fa23674

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DatacageButton: doc.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 25 Jan 2013 16:32:21 +0100
parents 1358d0c8481c
children 53be73133104
rev   line source
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448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.artifacts.states;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import de.intevation.artifacts.Artifact;
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6
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7 import de.intevation.artifactdatabase.data.StateData;
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8
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1358d0c8481c RangeState and descendants: Use RangeAccess, resolve direct ld_* usage.
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9 import de.intevation.flys.artifacts.access.RangeAccess;
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10 import de.intevation.flys.artifacts.FLYSArtifact;
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11
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12
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13 /**
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14 * State in which km range is set.
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15 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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16 */
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17 public abstract class RangeState extends DefaultState {
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18
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022f62c75878 Cosmetics.
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19 /** The logger that is used in this class. */
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20 private Logger logger = Logger.getLogger(RangeState.class);
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21
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22
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23 public RangeState() {
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24 }
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25
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26 protected abstract double[] getMinMax(Artifact artifact);
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27
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28
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29 protected boolean validateBounds(
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30 double fromValid, double toValid,
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31 double from, double to)
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32 throws IllegalArgumentException
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33 {
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34 if (from < fromValid) {
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35 logger.error(
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36 "Invalid 'from'. " + from + " is smaller than " + fromValid);
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37 throw new IllegalArgumentException("error_feed_from_out_of_range");
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38 }
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39 else if (to > toValid) {
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40 logger.error(
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41 "Invalid 'to'. " + to + " is bigger than " + toValid);
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42 throw new IllegalArgumentException("error_feed_to_out_of_range");
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43 }
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44
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45 return true;
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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 * Validates a given range with a given valid range.
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51 *
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52 * @param fromValid Valid lower value of the range.
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53 * @param toValid Valid upper value of the range.
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54 * @param from The lower value.
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55 * @param to The upper value.
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56 * @param step The step width.
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57 *
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58 * @return true, if everything was fine, otherwise an exception is thrown.
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59 */
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60 protected boolean validateBounds(
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61 double fromValid, double toValid,
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62 double from, double to, double step)
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63 throws IllegalArgumentException
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64 {
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65 logger.debug("RangeState.validateRange");
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66
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67 // XXX The step width is not validated at the moment!
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68 return validateBounds(fromValid, toValid, from, to);
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69 }
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70
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71
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72 @Override
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73 public boolean validate(Artifact artifact)
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74 throws IllegalArgumentException
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75 {
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76 FLYSArtifact flys = (FLYSArtifact) artifact;
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77
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78 try {
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79 RangeAccess rangeAccess = new RangeAccess(flys, null);
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80 double from = rangeAccess.getFrom();
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81 double to = rangeAccess.getTo();
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82 double step = rangeAccess.getStep();
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83
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84 double[] minmax = getMinMax(flys);
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85
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86 return validateBounds(minmax[0], minmax[1], from, to, step);
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87 }
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88 catch (NumberFormatException nfe) {
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89 throw new IllegalArgumentException("error_invalid_double_value");
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90 }
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91 catch (NullPointerException npe) {
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92 throw new IllegalArgumentException("error_empty_state");
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93 }
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94 }
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95 }
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96 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org