Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/WaterlevelExporter.java @ 707:b6f57d927905

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Removed more dead code. flys-artifacts/trunk@2159 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 18 Jun 2011 18:38:04 +0000
parents ddd8b37d5cd3
children 3b7e9ddf6bb1
rev   line source
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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.WQKms;
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18
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19 import de.intevation.flys.utils.Formatter;
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20
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21
69d05357c177 Added an exporter (OutGenerator) for waterlevels which currently supports CSV exports.
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22 /**
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23 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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24 */
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25 public class WaterlevelExporter extends AbstractExporter {
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26
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27 /** The logger used in this exporter.*/
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28 private static Logger logger = Logger.getLogger(WaterlevelExporter.class);
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29
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30
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31 public static final String FACET_WST = "wst";
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32
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33
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34 public static final String CSV_KM_HEADER =
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35 "export.waterlevel.csv.header.km";
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36
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37 public static final String CSV_W_HEADER =
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38 "export.waterlevel.csv.header.w";
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39
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40 public static final String CSV_Q_HEADER =
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41 "export.waterlevel.csv.header.q";
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42
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43 public static final String DEFAULT_CSV_KM_HEADER = "Fluss-Km";
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44 public static final String DEFAULT_CSV_W_HEADER = "W [NN + m]";
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45 public static final String DEFAULT_CSV_Q_HEADER = "Q [m\u00b3/s]";
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46
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47
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48 /** The storage that contains all WQKms objects for the different facets.*/
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49 protected List<WQKms[]> data;
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50
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51
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52 public void init(Document request, OutputStream out, CallContext context) {
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53 logger.debug("WaterlevelExporter.init");
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54
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55 super.init(request, out, context);
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56
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57 this.data = new ArrayList<WQKms[]>();
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58 }
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59
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61 @Override
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62 public void generate()
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63 throws IOException
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64 {
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65 logger.debug("WaterlevelExporter.generate");
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66
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67 if (facet != null && facet.equals(AbstractExporter.FACET_CSV)) {
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68 generateCSV();
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69 }
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70 else if (facet != null && facet.equals(FACET_WST)) {
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71 generateWST();
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72 }
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73 else {
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74 throw new IOException("invalid facet for exporter");
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75 }
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76 }
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77
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78
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79 @Override
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80 protected void addData(Object d) {
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81 if (d instanceof WQKms []) {
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82 data.add((WQKms [])d);
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83 }
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84 }
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85
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86
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87 @Override
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88 protected void writeCSVData(CSVWriter writer) {
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89 logger.info("WaterlevelExporter.writeData");
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90
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91 writeCSVHeader(writer);
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92
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93 for (WQKms[] tmp: data) {
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94 for (WQKms wqkms: tmp) {
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95 wQKms2CSV(writer, wqkms);
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96 }
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97 }
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98 }
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99
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100
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101 protected void writeCSVHeader(CSVWriter writer) {
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102 logger.info("WaterlevelExporter.writeCSVHeader");
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103
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104 writer.writeNext(new String[] {
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105 msg(CSV_KM_HEADER, DEFAULT_CSV_KM_HEADER),
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106 msg(CSV_W_HEADER, DEFAULT_CSV_W_HEADER),
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107 msg(CSV_Q_HEADER, DEFAULT_CSV_Q_HEADER)
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108 });
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109 }
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110
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111
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112 protected void wQKms2CSV(CSVWriter writer, WQKms wqkms) {
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113 logger.debug("WaterlevelExporter.wQKms2CSV");
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114
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115 NumberFormat kmf = getKmFormatter();
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116 NumberFormat wf = getWFormatter();
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117 NumberFormat qf = getQFormatter();
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118
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119 int size = wqkms.size();
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120 double[] result = new double[3];
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121
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122 for (int i = 0; i < size; i ++) {
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123 result = wqkms.get(i, result);
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124
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125 writer.writeNext(new String[] {
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126 kmf.format(result[2]),
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127 wf.format(result[0]),
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128 qf.format(result[1])
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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 /**
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135 * Generates the output in WST format.
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136 */
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137 protected void generateWST()
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138 throws IOException
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139 {
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140 logger.info("WaterlevelExporter.generateWST");
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141
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142 int cols = data.get(0).length;
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143 WstWriter writer = new WstWriter(cols);
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144
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145 writeWSTData(writer);
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146
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147 writer.write(out);
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148 }
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149
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150
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151 protected void writeWSTData(WstWriter writer) {
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152 logger.debug("WaterlevelExporter.writeWSTData");
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153
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154 double[] result = new double[3];
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155
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156 for (WQKms[] tmp: data) {
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157 for (WQKms wqkms: tmp) {
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158 int size = wqkms != null ? wqkms.size() : 0;
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159
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160 addWSTColumn(writer, wqkms);
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161
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162 for (int i = 0; i < size; i++) {
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163 result = wqkms.get(i, result);
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164
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165 writer.add(result);
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166 }
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167 }
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168 }
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169 }
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170
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171
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172 protected void addWSTColumn(WstWriter writer, WQKms wqkms) {
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173 writer.addColumn(wqkms.getName());
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174 }
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175
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176
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177 /**
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178 * Returns the number formatter for kilometer values.
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179 *
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180 * @return the number formatter for kilometer values.
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181 */
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182 protected NumberFormat getKmFormatter() {
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183 return Formatter.getWaterlevelKM(context);
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184 }
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185
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186
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187 /**
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188 * Returns the number formatter for W values.
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189 *
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190 * @return the number formatter for W values.
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191 */
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192 protected NumberFormat getWFormatter() {
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193 return Formatter.getWaterlevelW(context);
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194 }
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195
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196
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197 /**
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198 * Returns the number formatter for Q values.
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199 *
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200 * @return the number formatter for Q values.
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201 */
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202 protected NumberFormat getQFormatter() {
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203 return Formatter.getWaterlevelQ(context);
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204 }
389
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205 }
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206 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org