Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/WaterlevelExporter.java @ 709:3b7e9ddf6bb1

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New model to transport data and error reports of calculations. flys-artifacts/trunk@2165 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 20 Jun 2011 12:32:32 +0000
parents b6f57d927905
children 72bcbc308501
rev   line source
389
69d05357c177 Added an exporter (OutGenerator) for waterlevels which currently supports CSV exports.
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1 package de.intevation.flys.exports;
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2
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3 import java.io.IOException;
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4 import java.io.OutputStream;
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5 import java.text.NumberFormat;
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6 import java.util.ArrayList;
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7 import java.util.List;
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8
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9 import org.w3c.dom.Document;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import au.com.bytecode.opencsv.CSVWriter;
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14
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15 import de.intevation.artifacts.CallContext;
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16
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17 import de.intevation.flys.artifacts.model.CalculationResult;
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18 import de.intevation.flys.artifacts.model.WQKms;
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19
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20 import de.intevation.flys.utils.Formatter;
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21
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22
69d05357c177 Added an exporter (OutGenerator) for waterlevels which currently supports CSV exports.
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23 /**
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24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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25 */
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26 public class WaterlevelExporter extends AbstractExporter {
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27
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28 /** The logger used in this exporter.*/
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29 private static Logger logger = Logger.getLogger(WaterlevelExporter.class);
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30
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31
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32 public static final String FACET_WST = "wst";
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33
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34
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35 public static final String CSV_KM_HEADER =
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36 "export.waterlevel.csv.header.km";
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37
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38 public static final String CSV_W_HEADER =
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39 "export.waterlevel.csv.header.w";
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40
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41 public static final String CSV_Q_HEADER =
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42 "export.waterlevel.csv.header.q";
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43
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44 public static final String DEFAULT_CSV_KM_HEADER = "Fluss-Km";
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45 public static final String DEFAULT_CSV_W_HEADER = "W [NN + m]";
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e006da5679d2 s@m³/s@m\u00b3/s@
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46 public static final String DEFAULT_CSV_Q_HEADER = "Q [m\u00b3/s]";
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48
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49 /** The storage that contains all WQKms objects for the different facets.*/
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50 protected List<WQKms[]> data;
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51
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52
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53 public void init(Document request, OutputStream out, CallContext context) {
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54 logger.debug("WaterlevelExporter.init");
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55
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56 super.init(request, out, context);
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57
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58 this.data = new ArrayList<WQKms[]>();
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59 }
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60
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62 @Override
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63 public void generate()
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64 throws IOException
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65 {
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66 logger.debug("WaterlevelExporter.generate");
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67
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68 if (facet != null && facet.equals(AbstractExporter.FACET_CSV)) {
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69 generateCSV();
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70 }
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71 else if (facet != null && facet.equals(FACET_WST)) {
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72 generateWST();
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73 }
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74 else {
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75 throw new IOException("invalid facet for exporter");
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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 @Override
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81 protected void addData(Object d) {
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82 if (d instanceof CalculationResult) {
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83 d = ((CalculationResult)d).getData();
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84 if (d instanceof WQKms []) {
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85 data.add((WQKms [])d);
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86 }
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87 }
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88 }
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89
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90
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91 @Override
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92 protected void writeCSVData(CSVWriter writer) {
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93 logger.info("WaterlevelExporter.writeData");
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94
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95 writeCSVHeader(writer);
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96
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97 for (WQKms[] tmp: data) {
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98 for (WQKms wqkms: tmp) {
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99 wQKms2CSV(writer, wqkms);
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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 protected void writeCSVHeader(CSVWriter writer) {
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106 logger.info("WaterlevelExporter.writeCSVHeader");
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107
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108 writer.writeNext(new String[] {
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109 msg(CSV_KM_HEADER, DEFAULT_CSV_KM_HEADER),
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110 msg(CSV_W_HEADER, DEFAULT_CSV_W_HEADER),
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111 msg(CSV_Q_HEADER, DEFAULT_CSV_Q_HEADER)
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112 });
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113 }
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114
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115
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116 protected void wQKms2CSV(CSVWriter writer, WQKms wqkms) {
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117 logger.debug("WaterlevelExporter.wQKms2CSV");
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118
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119 NumberFormat kmf = getKmFormatter();
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120 NumberFormat wf = getWFormatter();
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121 NumberFormat qf = getQFormatter();
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122
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123 int size = wqkms.size();
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124 double[] result = new double[3];
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125
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126 for (int i = 0; i < size; i ++) {
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127 result = wqkms.get(i, result);
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128
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129 writer.writeNext(new String[] {
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130 kmf.format(result[2]),
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131 wf.format(result[0]),
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132 qf.format(result[1])
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133 });
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134 }
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135 }
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136
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137
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138 /**
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139 * Generates the output in WST format.
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140 */
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141 protected void generateWST()
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142 throws IOException
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143 {
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144 logger.info("WaterlevelExporter.generateWST");
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145
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146 int cols = data.get(0).length;
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147 WstWriter writer = new WstWriter(cols);
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148
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149 writeWSTData(writer);
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150
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151 writer.write(out);
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152 }
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153
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154
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155 protected void writeWSTData(WstWriter writer) {
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156 logger.debug("WaterlevelExporter.writeWSTData");
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157
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158 double[] result = new double[3];
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159
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160 for (WQKms[] tmp: data) {
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161 for (WQKms wqkms: tmp) {
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162 int size = wqkms != null ? wqkms.size() : 0;
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163
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164 addWSTColumn(writer, wqkms);
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165
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166 for (int i = 0; i < size; i++) {
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167 result = wqkms.get(i, result);
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168
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169 writer.add(result);
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170 }
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171 }
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172 }
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173 }
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174
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175
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176 protected void addWSTColumn(WstWriter writer, WQKms wqkms) {
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177 writer.addColumn(wqkms.getName());
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178 }
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179
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180
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181 /**
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182 * Returns the number formatter for kilometer values.
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183 *
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184 * @return the number formatter for kilometer values.
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185 */
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186 protected NumberFormat getKmFormatter() {
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187 return Formatter.getWaterlevelKM(context);
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188 }
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189
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190
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191 /**
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192 * Returns the number formatter for W values.
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193 *
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194 * @return the number formatter for W values.
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195 */
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196 protected NumberFormat getWFormatter() {
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197 return Formatter.getWaterlevelW(context);
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198 }
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199
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200
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201 /**
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202 * Returns the number formatter for Q values.
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203 *
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204 * @return the number formatter for Q values.
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205 */
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206 protected NumberFormat getQFormatter() {
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207 return Formatter.getWaterlevelQ(context);
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208 }
389
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209 }
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210 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org