Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DischargeState.java @ 3068:2fc9d0c65dc9
Removed superfluous import.
flys-artifacts/trunk@4652 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Wed, 13 Jun 2012 13:00:34 +0000 |
parents | 71f072d8b3d8 |
children | 4a76da133144 |
rev | line source |
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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 import de.intevation.artifacts.CallContext; |
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9 |
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10 import de.intevation.artifacts.common.model.KVP; |
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11 |
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12 import de.intevation.flys.model.DischargeZone; |
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13 import de.intevation.flys.model.River; |
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14 |
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15 import de.intevation.flys.artifacts.FLYSArtifact; |
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16 import de.intevation.flys.utils.FLYSUtils; |
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17 |
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18 |
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19 public class DischargeState extends MultiIntArrayState { |
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20 |
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21 public static final String MAIN_CHANNEL = "main.channel"; |
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22 public static final String TOTAL_CHANNEL = "total.channel"; |
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23 |
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24 |
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25 private static final Logger logger = Logger.getLogger(DischargeState.class); |
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26 |
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27 |
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28 @Override |
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29 public String getUIProvider() { |
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30 return "parameter-matrix"; |
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31 } |
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32 |
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33 |
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34 /** |
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35 * This method fetches all DischargeZones for a given river (extracted from |
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36 * <i>artifact</i>) and returns a KVP[] where the key is the ID of the |
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37 * DischargeZone and the value is a string that consists of lower discharge |
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38 * and upper discharge. |
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39 * |
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40 * @param artifact Needs to be a FLYSArtifact that provides river |
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41 * information. |
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42 * @param parameterName The name of a parameter. |
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43 * |
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44 * @return a KVP[]. |
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45 */ |
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46 @Override |
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47 protected KVP<Integer, String>[] getOptions( |
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48 Artifact artifact, |
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49 String parameterName |
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50 ) |
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51 throws IllegalArgumentException |
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52 { |
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53 if (!testParameterName(parameterName)) { |
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54 throw new IllegalArgumentException( |
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55 "Invalid parameter for state: '" + parameterName + "'"); |
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56 } |
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57 |
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58 List<DischargeZone> zones = getDischargeZones(artifact); |
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59 |
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60 KVP[] kvp = new KVP[zones.size()]; |
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61 |
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62 for (int i = 0; i < zones.size(); i++) { |
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63 DischargeZone zone = zones.get(i); |
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64 |
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65 String lower = zone.getLowerDischarge(); |
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66 String upper = zone.getUpperDischarge(); |
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67 |
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68 if (lower.equals(upper)) { |
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69 kvp[i] = new KVP(zone.getId(), lower); |
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70 } |
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71 else { |
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72 kvp[i] = new KVP(zone.getId(), lower + " - " + upper); |
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73 } |
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74 } |
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75 |
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76 return kvp; |
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77 } |
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78 |
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79 |
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80 @Override |
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81 protected String getLabelFor( |
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82 CallContext cc, |
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83 String parameterName, |
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84 int value |
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85 ) throws IllegalArgumentException |
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86 { |
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87 if (!testParameterName(parameterName)) { |
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88 throw new IllegalArgumentException( |
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89 "Invalid parameter for state: '" + parameterName + "'"); |
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90 } |
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91 |
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92 DischargeZone zone = DischargeZone.getDischargeZoneById(value); |
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93 |
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94 if (zone == null) { |
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95 throw new IllegalArgumentException( |
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96 "Invalid id for DischargeZone: '" + value + "'"); |
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97 } |
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98 |
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99 String lo = zone.getLowerDischarge(); |
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100 String hi = zone.getUpperDischarge(); |
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101 |
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102 return hi != null && lo.equals(hi) |
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103 ? lo + " - " + hi |
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104 : lo; |
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105 } |
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106 |
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107 |
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108 /** |
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109 * This method might be used to test, if a parameter name is handled by this |
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110 * state. |
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111 * |
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112 * @param parameterName The name of a parameter. |
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113 * |
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114 * @return true, if parameterName is one of <i>MAIN_CHANNEL</i> or |
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115 * <i>TOTAL_CHANNEL</i>. Otherwise false. |
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116 */ |
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117 protected boolean testParameterName(String parameterName) { |
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118 if (parameterName == null || parameterName.length() == 0) { |
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119 return false; |
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120 } |
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121 else if (parameterName.equals(MAIN_CHANNEL)) { |
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122 return true; |
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123 } |
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124 else if (parameterName.equals(TOTAL_CHANNEL)) { |
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125 return true; |
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126 } |
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127 else { |
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128 return false; |
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129 } |
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130 } |
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131 |
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132 |
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133 /** |
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134 * Returns all discharge zones for a given river. The river information is |
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135 * extracted from <i>artifact</i> using FLYSUtils.getRiver(). |
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136 * |
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137 * @param artifact Needs to be a FLYSArtifact that stores a rivername. |
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138 * |
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139 * @return a list of DischargeZones. |
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140 * |
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141 * @throws IllegalArgumentException if no river information is provided by |
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142 * <i>artifact</i>. |
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143 */ |
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144 protected List<DischargeZone> getDischargeZones(Artifact artifact) |
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145 throws IllegalArgumentException |
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146 { |
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147 River river = FLYSUtils.getRiver((FLYSArtifact) artifact); |
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148 |
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149 if (river == null) { |
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150 throw new IllegalArgumentException("No river found"); |
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151 } |
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152 |
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153 List<DischargeZone> zones = DischargeZone.getDischargeZones(river); |
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154 |
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155 logger.debug("Found " + zones.size() + " DischargeZones."); |
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156 |
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157 return zones; |
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158 } |
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159 } |
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160 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |