Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/DischargeState.java @ 8202:e4606eae8ea5

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sed src/**/*.java 's/logger/log/g'
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 05 Sep 2014 12:58:17 +0200
parents a07521dca5b5
children f575ff573cbb 0a5239a1e46e
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.states;
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10
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11 import java.util.List;
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12 import java.util.Collections;
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13 import java.util.Comparator;
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14
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15 import org.apache.log4j.Logger;
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16
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17 import org.dive4elements.artifacts.Artifact;
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18 import org.dive4elements.artifacts.CallContext;
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19
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20 import org.dive4elements.artifacts.common.model.KVP;
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21
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22 import org.dive4elements.river.model.DischargeZone;
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23 import org.dive4elements.river.model.River;
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24
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25 import org.dive4elements.river.artifacts.D4EArtifact;
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26 import org.dive4elements.river.utils.RiverUtils;
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27
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28
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29 public class DischargeState extends MultiIntArrayState {
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30
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31 public static final String MAIN_CHANNEL = "main_channel";
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32 public static final String TOTAL_CHANNEL = "total_channel";
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33
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34
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35 private static final Logger log = Logger.getLogger(DischargeState.class);
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36
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37
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38 /** Let client display a matrix. */
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39 @Override
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40 public String getUIProvider() {
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41 return "parameter-matrix";
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42 }
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43
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44
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45 /**
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46 * This method fetches all DischargeZones for a given river (extracted from
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47 * <i>artifact</i>) and returns a KVP[] where the key is the ID of the
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48 * DischargeZone and the value is a string that consists of lower discharge
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49 * and upper discharge.
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50 *
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51 * @param artifact Needs to be a D4EArtifact that provides river
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52 * information.
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53 * @param parameterName The name of a parameter.
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54 *
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55 * @return a KVP[].
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56 */
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57 @Override
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58 protected KVP<Integer, String>[] getOptions(
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59 Artifact artifact,
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60 String parameterName
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61 )
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62 throws IllegalArgumentException
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63 {
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64 if (!testParameterName(parameterName)) {
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65 throw new IllegalArgumentException(
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66 "Invalid parameter for state: '" + parameterName + "'");
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67 }
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68
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69 List<DischargeZone> zones = getDischargeZones(artifact);
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70
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71 KVP[] kvp = new KVP[zones.size()];
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72
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73 Collections.sort(zones, new Comparator<DischargeZone>() {
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74 @Override
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75 public int compare(DischargeZone a, DischargeZone b) {
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76 return a.getValue().compareTo(b.getValue());
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77 }
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78 });
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79
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80 int i = 0;
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81
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82 for (DischargeZone zone: zones) {
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83 String lower = zone.getLowerDischarge();
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84 String upper = zone.getUpperDischarge();
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85
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86 if (lower.equals(upper)) {
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87 kvp[i] = new KVP(zone.getId(), lower);
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88 }
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89 else {
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90 kvp[i] = new KVP(zone.getId(), lower + " - " + upper);
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91 }
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92 i++;
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93 }
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94
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95 return kvp;
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96 }
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97
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98
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99 @Override
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100 protected String getLabelFor(
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101 CallContext cc,
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102 String parameterName,
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103 int value
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104 ) throws IllegalArgumentException
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105 {
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106 if (!testParameterName(parameterName)) {
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107 throw new IllegalArgumentException(
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108 "Invalid parameter for state: '" + parameterName + "'");
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109 }
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110
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111 DischargeZone zone = DischargeZone.getDischargeZoneById(value);
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112
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113 if (zone == null) {
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114 throw new IllegalArgumentException(
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115 "Invalid id for DischargeZone: '" + value + "'");
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116 }
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117
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118 String lo = zone.getLowerDischarge();
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119 String hi = zone.getUpperDischarge();
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120
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121 return hi != null && !lo.equals(hi)
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122 ? lo + " - " + hi
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123 : lo;
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124 }
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125
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126
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127 /**
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128 * This method might be used to test, if a parameter name is handled by this
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129 * state.
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130 *
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131 * @param parameterName The name of a parameter.
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132 *
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133 * @return true, if parameterName is one of <i>MAIN_CHANNEL</i> or
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134 * <i>TOTAL_CHANNEL</i>. Otherwise false.
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135 */
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136 protected boolean testParameterName(String parameterName) {
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137 if (parameterName == null || parameterName.length() == 0) {
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138 return false;
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139 }
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140 else if (parameterName.equals(MAIN_CHANNEL)) {
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141 return true;
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142 }
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143 else if (parameterName.equals(TOTAL_CHANNEL)) {
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144 return true;
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145 }
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146 else {
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147 return false;
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148 }
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149 }
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150
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151
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152 /**
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153 * Returns all discharge zones for a given river. The river information is
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154 * extracted from <i>artifact</i> using RiverUtils.getRiver().
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155 *
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156 * @param artifact Needs to be a D4EArtifact that stores a rivername.
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157 *
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158 * @return a list of DischargeZones.
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159 *
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160 * @throws IllegalArgumentException if no river information is provided by
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161 * <i>artifact</i>.
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162 */
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163 protected List<DischargeZone> getDischargeZones(Artifact artifact)
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164 throws IllegalArgumentException
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165 {
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166 River river = RiverUtils.getRiver((D4EArtifact) artifact);
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167
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168 if (river == null) {
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169 throw new IllegalArgumentException("No river found");
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170 }
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171
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172 List<DischargeZone> zones = DischargeZone.getDischargeZones(river);
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173
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e4606eae8ea5 sed src/**/*.java 's/logger/log/g'
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174 log.debug("Found " + zones.size() + " DischargeZones.");
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175
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176 return zones;
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177 }
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178 }
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179 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org