Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/WDifferencesExporter.java @ 2180:65b32220f197

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Issue 138. PDF output for differences calculations. flys-artifacts/trunk@3784 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 27 Jan 2012 09:49:11 +0000
parents 65dac9cf6ff5
children a9a8df1473fd
rev   line source
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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 import java.util.Map;
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9 import java.util.HashMap;
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10 import java.util.Date;
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11 import java.text.DateFormat;
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12 import java.util.Locale;
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13
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14 import org.w3c.dom.Document;
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15
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16 import org.apache.log4j.Logger;
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17
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18 import au.com.bytecode.opencsv.CSVWriter;
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19
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20 import net.sf.jasperreports.engine.JasperExportManager;
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21 import net.sf.jasperreports.engine.JasperFillManager;
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22 import net.sf.jasperreports.engine.JasperPrint;
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23 import net.sf.jasperreports.engine.JRException;
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24
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25 import de.intevation.artifacts.CallContext;
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26 import de.intevation.artifacts.CallMeta;
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27
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28 import de.intevation.flys.artifacts.WINFOArtifact;
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29
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30 import de.intevation.flys.artifacts.model.CalculationResult;
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31 import de.intevation.flys.artifacts.model.WKms;
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32 import de.intevation.flys.artifacts.model.WKmsJRDataSource;
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33 import de.intevation.flys.artifacts.resources.Resources;
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34
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35 import de.intevation.flys.utils.FLYSUtils;
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36 import de.intevation.flys.utils.Formatter;
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37
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38 /**
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39 * (CSV)Exporter for WDifferences.
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40 */
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41 public class WDifferencesExporter extends AbstractExporter {
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42
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43 /** The logger used in this exporter. */
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44 private static Logger logger = Logger.getLogger(WDifferencesExporter.class);
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45
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46
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47 public static final String WDIFF_CSV_KM_HEADER =
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48 "export.w_differences.csv.header.km";
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49
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50 public static final String WDIFF_CSV_W_HEADER =
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51 "export.w_differences.csv.header.w";
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52
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53 public static final String WDIFF_DEFAULT_CSV_KM_HEADER = "Fluss-Km";
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54 public static final String WDIFF_DEFAULT_CSV_W_HEADER = "m";
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55
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56 public static final String PDF_HEADER_MODE = "export.wdifferences.pdf.mode";
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57
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58 /** The storage that contains all WKms objects for the different facets. */
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59 protected List<WKms[]> data;
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60
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61
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62 public void init(Document request, OutputStream out, CallContext context) {
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63 logger.debug("WDifferencesExporter.init");
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64
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65 super.init(request, out, context);
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66
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67 this.data = new ArrayList<WKms[]>();
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68 }
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69
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70
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71 /**
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72 * Genereate data in csv format.
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73 */
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74 @Override
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75 public void generate()
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76 throws IOException
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77 {
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78 logger.debug("WDifferencesExporter.generate");
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79
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80 if (facet == null) {
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81 throw new IOException("invalid (null) facet for exporter");
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82 }
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83 else if (facet.equals(AbstractExporter.FACET_CSV)) {
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84 generateCSV();
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85 }
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86 else if (facet.equals(AbstractExporter.FACET_PDF)) {
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87 generatePDF();
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88 }
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89 else {
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90 throw new IOException("invalid facet (" + facet + ") for exporter");
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91 }
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92 }
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93
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94
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95 /**
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96 * Adds given data.
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97 * @param d either a WKms or a CalculationResult to add to data.
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98 */
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99 @Override
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100 protected void addData(Object d) {
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101 if (d instanceof CalculationResult) {
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102 d = ((CalculationResult)d).getData();
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103 if (d instanceof WKms []) {
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104 data.add((WKms [])d);
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105 }
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106 }
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107 else if (d instanceof WKms) {
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108 data.add(new WKms[] { (WKms) d });
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109 }
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110 }
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111
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112
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113 /**
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114 * Lets writer write all data (including header).
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115 * @param writer Writer to write data with.
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116 */
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117 @Override
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118 protected void writeCSVData(CSVWriter writer) {
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119 logger.info("WDifferencesExporter.writeData");
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120
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121 writeCSVHeader(writer);
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122
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123 for (WKms[] tmp: data) {
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124 for (WKms wkms: tmp) {
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125 wKms2CSV(writer, wkms);
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126 }
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127 }
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128 }
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129
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130
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131 /**
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132 * Lets csvwriter write the header (first line in file).
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133 * @param write Writer to write header with.
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134 */
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135 protected void writeCSVHeader(CSVWriter writer) {
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136 logger.info("WDifferencesExporter.writeCSVHeader");
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137
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138 writer.writeNext(new String[] {
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139 msg(WDIFF_CSV_KM_HEADER, WDIFF_DEFAULT_CSV_KM_HEADER),
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140 msg(WDIFF_CSV_W_HEADER, WDIFF_DEFAULT_CSV_W_HEADER)
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141 });
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142 }
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143
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144
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145 protected void wKms2CSV(CSVWriter writer, WKms wkms) {
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146 logger.debug("WDifferencesExporter.wQKms2CSV");
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147
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148 NumberFormat kmf = getKmFormatter();
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149 NumberFormat wf = getWFormatter();
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150 int size = wkms.size();
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151
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152 for (int i = 0; i < size; i ++) {
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153
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154 writer.writeNext(new String[] {
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155 kmf.format(wkms.getKm(i)),
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156 wf.format(wkms.getW(i))
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157 });
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158 }
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159 }
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160
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161
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162 /**
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163 * Returns the number formatter for kilometer values.
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164 *
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165 * @return the number formatter for kilometer values.
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166 */
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167 protected NumberFormat getKmFormatter() {
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168 return Formatter.getWaterlevelKM(context);
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169 }
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170
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171
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172 /**
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173 * Returns the number formatter for W values.
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174 *
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175 * @return the number formatter for W values.
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176 */
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177 protected NumberFormat getWFormatter() {
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178 return Formatter.getWaterlevelW(context);
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179 }
2176
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180
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181
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182 @Override
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183 protected void writePDF(OutputStream out) {
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184 WKmsJRDataSource source = createJRData();
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185 Map parameters = new HashMap();
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186 parameters.put("ReportTitle", "Exported Data");
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187 try {
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188 JasperPrint print = JasperFillManager.fillReport(
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189 "conf/jasper/wdifferences.jasper",
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190 parameters,
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191 source);
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192 JasperExportManager.exportReportToPdfStream(print, out);
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193 }
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194 catch(JRException je) {
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195 logger.warn("Error generating PDF Report!");
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196 je.printStackTrace();
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197 }
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198 }
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199
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200 protected WKmsJRDataSource createJRData() {
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201 WKmsJRDataSource source = new WKmsJRDataSource();
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202
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203 addMetaData(source);
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204 for (WKms[] tmp: data) {
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205 for (WKms wkms: tmp) {
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206 addWKmsData(source, wkms);
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207 }
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208 }
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209 return source;
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210 }
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211
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212
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213 protected void addMetaData(WKmsJRDataSource source) {
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214 CallMeta meta = context.getMeta();
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215
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216 WINFOArtifact flys = (WINFOArtifact) master;
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217
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218 source.addMetaData ("river", FLYSUtils.getRivername(flys));
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219
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220 Locale locale = Resources.getLocale(meta);
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221 DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale);
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222
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223 source.addMetaData("date", df.format(new Date()));
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224
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225 String differences = FLYSUtils.getWDifferences(flys, context);
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226 source.addMetaData("differences", differences);
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227
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228 source.addMetaData("calculation", Resources.getMsg(
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229 locale,
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230 PDF_HEADER_MODE,
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231 "W Differences"));
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232 }
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233
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234 protected void addWKmsData(WKmsJRDataSource source, WKms wkms) {
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235 NumberFormat kmf = getKmFormatter();
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236 NumberFormat wf = getWFormatter();
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237 int size = wkms.size();
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238
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239 for (int i = 0; i < size; i ++) {
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240
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241 source.addData(new String[] {
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242 kmf.format(wkms.getKm(i)),
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243 wf.format(wkms.getW(i))
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244 });
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245 }
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246 }
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247
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248 }
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249 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org