Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/RangeState.java @ 940:f4439e015278

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Append artifact recommendations to the artifact's describe document. flys-artifacts/trunk@2334 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 14 Jul 2011 15:30:55 +0000
parents 610d0e0f4f85
children eccf966fb677
rev   line source
322
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
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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 import de.intevation.artifacts.CallContext;
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7
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8 import de.intevation.artifactdatabase.data.StateData;
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9
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10 import de.intevation.flys.artifacts.FLYSArtifact;
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11
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12
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
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13 /**
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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
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26 protected abstract String getLowerField();
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27 protected abstract String getUpperField();
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28 protected abstract String getStepField();
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29 protected abstract double[] getMinMax(Artifact artifact);
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30
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31
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32 /**
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33 * Validates a given range with a given valid range.
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34 *
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35 * @param fromValid Valid lower value of the range.
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36 * @param toValid Valid upper value of the range.
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37 * @param from The lower value.
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38 * @param to The upper value.
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39 * @param step The step width.
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40 *
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41 * @return true, if everything was fine, otherwise an exception is thrown.
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42 */
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c21fb8de54f8 Enabled the FLYSArtifact to handle an array of inserted WQ values (without given ranges).
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43 protected boolean validateBounds(
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44 double fromValid, double toValid,
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45 double from, double to, double step)
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46 throws IllegalArgumentException
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47 {
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48 logger.debug("RangeState.validateRange");
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49
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50 if (from < fromValid) {
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51 logger.error(
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52 "Invalid 'from'. " + from + " is smaller than " + fromValid);
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53 throw new IllegalArgumentException("error_feed_from_out_of_range");
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54 }
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55 else if (to > toValid) {
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56 logger.error(
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57 "Invalid 'to'. " + to + " is bigger than " + toValid);
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58 throw new IllegalArgumentException("error_feed_to_out_of_range");
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59 }
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60
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61 return true;
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62 }
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63
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64
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65 @Override
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66 public boolean validate(Artifact artifact, CallContext context)
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67 throws IllegalArgumentException
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68 {
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69 FLYSArtifact flys = (FLYSArtifact) artifact;
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70
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71 StateData dFrom = getData(flys, getLowerField());
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72 StateData dTo = getData(flys, getUpperField());
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73 StateData dStep = getData(flys, getStepField());
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74
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75 String fromStr = dFrom != null ? (String) dFrom.getValue() : null;
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76 String toStr = dTo != null ? (String) dTo.getValue() : null;
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77 String stepStr = dStep != null ? (String) dStep.getValue() : null;
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78
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79 if (fromStr == null || toStr == null || stepStr == null) {
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80 throw new IllegalArgumentException("error_empty_state");
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81 }
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82
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83 try {
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84 double from = Double.parseDouble(fromStr);
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85 double to = Double.parseDouble(toStr);
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86 double step = Double.parseDouble(stepStr);
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87
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88 double[] minmax = getMinMax(flys);
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89
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90 return validateBounds(minmax[0], minmax[1], from, to, step);
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91 }
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92 catch (NumberFormatException nfe) {
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93 throw new IllegalArgumentException("error_invalid_double_value");
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94 }
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95 }
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96 }
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97 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org