Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DischargeState.java @ 2696:1bc35de0b786

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Improved the states for MINFO flow velocity calculation. flys-artifacts/trunk@4406 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 15 May 2012 07:15:36 +0000
parents
children 71f072d8b3d8
rev   line source
2696
1bc35de0b786 Improved the states for MINFO flow velocity calculation.
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1 package de.intevation.flys.artifacts.states;
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2
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3 import java.util.List;
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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
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9 import de.intevation.artifacts.common.model.KVP;
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10
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11 import de.intevation.flys.model.DischargeZone;
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12 import de.intevation.flys.model.River;
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13
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14 import de.intevation.flys.artifacts.FLYSArtifact;
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15 import de.intevation.flys.utils.FLYSUtils;
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16
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17
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18 public class DischargeState extends MultiIntArrayState {
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19
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20 public static final String MAIN_CHANNEL = "main.channel";
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21 public static final String TOTAL_CHANNEL = "total.channel";
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22
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23
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24 private static final Logger logger = Logger.getLogger(DischargeState.class);
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25
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26
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27 @Override
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28 public String getUIProvider() {
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29 return "parameter-matrix";
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30 }
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31
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32
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33 /**
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34 * This method fetches all DischargeZones for a given river (extracted from
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35 * <i>artifact</i>) and returns a KVP[] where the key is the ID of the
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36 * DischargeZone and the value is a string that consists of lower discharge
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37 * and upper discharge.
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38 *
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39 * @param artifact Needs to be a FLYSArtifact that provides river
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40 * information.
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41 * @param parameterName The name of a parameter.
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42 *
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43 * @return a KVP[].
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44 */
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45 @Override
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46 protected KVP<Integer, String>[] getOptions(
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47 Artifact artifact,
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48 String parameterName
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49 )
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50 throws IllegalArgumentException
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51 {
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52 if (!testParameterName(parameterName)) {
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53 throw new IllegalArgumentException(
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54 "Invalid parameter for state: '" + parameterName + "'");
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55 }
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56
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57 List<DischargeZone> zones = getDischargeZones(artifact);
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58
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59 KVP[] kvp = new KVP[zones.size()];
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60
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61 for (int i = 0; i < zones.size(); i++) {
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62 DischargeZone zone = zones.get(i);
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63
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64 String lower = zone.getLowerDischarge();
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65 String upper = zone.getUpperDischarge();
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66
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67 if (lower.equals(upper)) {
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68 kvp[i] = new KVP(zone.getId(), lower);
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69 }
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70 else {
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71 kvp[i] = new KVP(zone.getId(), lower + " - " + upper);
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72 }
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73 }
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74
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75 return kvp;
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76 }
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77
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78
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79 /**
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80 * This method might be used to test, if a parameter name is handled by this
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81 * state.
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82 *
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83 * @param parameterName The name of a parameter.
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84 *
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85 * @return true, if parameterName is one of <i>MAIN_CHANNEL</i> or
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86 * <i>TOTAL_CHANNEL</i>. Otherwise false.
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87 */
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88 protected boolean testParameterName(String parameterName) {
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89 if (parameterName == null || parameterName.length() == 0) {
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90 return false;
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91 }
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92 else if (parameterName.equals(MAIN_CHANNEL)) {
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93 return true;
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94 }
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95 else if (parameterName.equals(TOTAL_CHANNEL)) {
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96 return true;
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97 }
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98 else {
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99 return false;
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100 }
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101 }
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102
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103
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104 /**
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105 * Returns all discharge zones for a given river. The river information is
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106 * extracted from <i>artifact</i> using FLYSUtils.getRiver().
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107 *
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108 * @param artifact Needs to be a FLYSArtifact that stores a rivername.
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109 *
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110 * @return a list of DischargeZones.
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111 *
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112 * @throws IllegalArgumentException if no river information is provided by
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113 * <i>artifact</i>.
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114 */
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115 protected List<DischargeZone> getDischargeZones(Artifact artifact)
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116 throws IllegalArgumentException
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117 {
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118 River river = FLYSUtils.getRiver((FLYSArtifact) artifact);
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119
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120 if (river == null) {
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121 throw new IllegalArgumentException("No river found");
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122 }
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123
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124 List<DischargeZone> zones = DischargeZone.getDischargeZones(river);
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125
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126 logger.debug("Found " + zones.size() + " DischargeZones.");
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127
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128 return zones;
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129 }
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130 }
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131 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org