Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java @ 117:ef157bd2fa92

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LanguageSupport integrated gnv-artifacts/trunk@178 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Fri, 02 Oct 2009 14:24:47 +0000
parents bb45c5097cb6
children 4841808819d9
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.transition.timeseries;
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5
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6 import java.awt.Color;
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7 import java.awt.Dimension;
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8 import java.io.IOException;
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9 import java.io.OutputStream;
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10 import java.io.OutputStreamWriter;
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11 import java.util.Collection;
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12 import java.util.Iterator;
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13
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14 import javax.xml.transform.Transformer;
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15 import javax.xml.transform.TransformerConfigurationException;
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16 import javax.xml.transform.TransformerException;
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17 import javax.xml.transform.TransformerFactory;
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18 import javax.xml.transform.TransformerFactoryConfigurationError;
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19 import javax.xml.transform.dom.DOMSource;
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20 import javax.xml.transform.stream.StreamResult;
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21
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22 import org.apache.log4j.Logger;
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23 import org.w3c.dom.Document;
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24 import org.w3c.dom.Element;
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25 import org.w3c.dom.Node;
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26
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27 import au.com.bytecode.opencsv.CSVWriter;
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28 import de.intevation.artifactdatabase.XMLUtils;
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29 import de.intevation.artifacts.CallMeta;
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30 import de.intevation.gnv.chart.ChartFactory;
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31 import de.intevation.gnv.chart.ChartLabels;
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32 import de.intevation.gnv.chart.ChartStyle;
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33 import de.intevation.gnv.chart.exception.TechnicalChartException;
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34 import de.intevation.gnv.geobackend.base.Result;
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35 import de.intevation.gnv.statistics.Statistic;
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36 import de.intevation.gnv.statistics.Statistics;
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37 import de.intevation.gnv.statistics.TimeseriesStatistics;
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38 import de.intevation.gnv.statistics.exception.StatisticsException;
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39 import de.intevation.gnv.transition.InputData;
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40 import de.intevation.gnv.transition.OutputTransitionBase;
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41 import de.intevation.gnv.transition.describedata.KeyValueDescibeData;
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42 import de.intevation.gnv.transition.describedata.NamedCollection;
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43 import de.intevation.gnv.transition.exception.TransitionException;
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44 import de.intevation.gnv.utils.ArtifactXMLUtilities;
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45
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46 /**
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47 * @author Tim Englich <tim.englich@intevation.de>
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48 *
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49 */
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50 public class TimeSeriesOutputTransition extends OutputTransitionBase {
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51
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52 /**
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53 * The UID of this Class
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54 */
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55 private static final long serialVersionUID = 4178407570503098858L;
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56
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57 /**
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58 * the logger, used to log exceptions and additonaly information
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59 */
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60 private static Logger log = Logger
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61 .getLogger(TimeSeriesOutputTransition.class);
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62
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63 protected String domainLable = "Zeit [UTC]";
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64
64
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65 /**
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66 * Constructor
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67 */
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68 public TimeSeriesOutputTransition() {
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69 super();
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70 }
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71
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72 /**
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73 * @see de.intevation.gnv.transition.Transition#validate()
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74 */
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75 public boolean validate() {
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76 return true;
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77 }
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78
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79 /**
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80 * @see de.intevation.gnv.transition.OutputTransition#out(java.lang.String,
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81 * java.util.Collection, java.io.OutputStream, java.lang.String,
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82 * de.intevation.artifacts.CallMeta)
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83 */
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84 public void out(String outputMode, Collection<InputData> inputData,
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85 OutputStream outputStream, String uuid, CallMeta callMeta)
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86 throws TransitionException {
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87 log.debug("TimeSeriesOutputTransition.out");
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88 try {
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89
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90 this.advance(uuid, callMeta);
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91 Collection<Result> chartResult = this.getChartResult(uuid);
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92 if (outputMode.equalsIgnoreCase("chart")) {
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93 log.debug("Chart will be generated.");
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94 int chartWidth = 600;
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95 int chartHeight = 400;
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96 try {
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97 if (inputData != null) {
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98 Iterator<InputData> it = inputData.iterator();
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99 while (it.hasNext()) {
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100 InputData ip = it.next();
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101 if (ip.getName().equalsIgnoreCase("width")) {
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102 chartWidth = Integer.parseInt(ip.getValue());
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103 } else if (ip.getName().equalsIgnoreCase("height")) {
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104 chartHeight = Integer.parseInt(ip.getValue());
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105 }
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106 }
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107 }
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108 } catch (NumberFormatException e) {
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109 log.error(e, e);
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110 throw new TransitionException(e);
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111 }
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112 Collection<KeyValueDescibeData> parameters = this
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113 .getParameters();
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114 Collection<KeyValueDescibeData> measurements = this
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115 .getMeasurements();
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116 ChartStyle chartStyle = this
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117 .creatStyle(chartWidth, chartHeight);
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118 ChartLabels chartLables = new ChartLabels(this
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119 .getSelectedFeatureName(), this.domainLable);
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120 this.createChart(outputStream, parameters, measurements,
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121 chartStyle, chartLables, uuid);
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122 } else if (outputMode.equalsIgnoreCase("csv")) {
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123 log.debug("CSV-File will be generated.");
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124 if (chartResult != null) {
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125 CSVWriter writer = new CSVWriter(new OutputStreamWriter(
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126 outputStream, "ISO-8859-1"), ','); // USE THIS
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127 // ENCODING
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128 // BECAUSE OF
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129 // PROBLEMS WITH
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130 // EXCEL AND
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131 // UTF-8
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132 Iterator<Result> it = chartResult.iterator();
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133 while (it.hasNext()) {
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134 Result result = it.next();
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135 int i = 0;
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136 String[] entries = new String[5];
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137 entries[i++] = result.getString("XORDINATE");
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138 entries[i++] = result.getString("YORDINATE");
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139 entries[i++] = result.getString("GROUP1");
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140 entries[i++] = result.getString("GROUP2");
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141 entries[i++] = result.getString("GROUP3");
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142 writer.writeNext(entries);
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143 }
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144 writer.close();
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145 } else {
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146 log.error("No Data given for generation an CSV-File.");
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147 throw new TransitionException(
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148 "No Data given for generation an CSV-File.");
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149 }
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150 } else if (outputMode.equalsIgnoreCase("statistics")) {
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151 log.debug("Statistics will be generated.");
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152 Statistics s = getStatisticsGenerator();
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153 Collection<Statistic> statistics = s
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154 .calculateStatistics(chartResult);
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155 Document doc = this.writeStatistics2XML(statistics);
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156 this.writeDocument2OutputStream(doc, outputStream);
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157 }
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158 } catch (IOException e) {
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159 log.error(e, e);
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160 throw new TransitionException(e);
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161 } catch (TechnicalChartException e) {
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162 log.error(e, e);
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163 throw new TransitionException(e);
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164 } catch (StatisticsException e) {
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165 log.error(e, e);
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166 throw new TransitionException(e);
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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 * @return
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172 */
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173 protected Statistics getStatisticsGenerator() {
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174 Statistics s = new TimeseriesStatistics();
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175 return s;
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176 }
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177
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178 protected void writeDocument2OutputStream(Document document, OutputStream os) {
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179
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180 try {
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181 TransformerFactory transformerFactory = TransformerFactory
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182 .newInstance();
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183 Transformer transformer = transformerFactory.newTransformer();
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184 DOMSource source = new DOMSource(document);
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185 StreamResult result = new StreamResult(os);
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186 transformer.transform(source, result);
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187 } catch (TransformerConfigurationException e) {
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188 log.error(e, e);
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189 } catch (TransformerFactoryConfigurationError e) {
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190 log.error(e, e);
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191 } catch (TransformerException e) {
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192 log.error(e, e);
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193 }
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194 }
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195
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196 protected Document writeStatistics2XML(Collection<Statistic> statistic) {
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197 ArtifactXMLUtilities xmlUtilities = new ArtifactXMLUtilities();
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198 Document doc = XMLUtils.newDocument();
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199 if (statistic != null) {
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200 Node statisticResults = xmlUtilities.createArtifactElement(doc,
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201 "statistic-values");
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202 doc.appendChild(statisticResults);
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203 Iterator<Statistic> it = statistic.iterator();
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204 while (it.hasNext()) {
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205 Statistic s = it.next();
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206 Element result = xmlUtilities.createArtifactElement(doc,
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207 "statistic");
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208 result.setAttribute("name", s.getKey());
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209 result.setAttribute("value", s.getStringValue());
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210 statisticResults.appendChild(result);
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211 }
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212
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213 }
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214 return doc;
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215 }
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216
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217 protected String getSelectedFeatureName() {
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218 String collectionName = "featureid"; // TODO: Konfigurierbar machen
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219 Collection<KeyValueDescibeData> values = this
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220 .getCollection(collectionName);
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221 if (values != null) {
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222 Iterator<KeyValueDescibeData> it = values.iterator();
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223 while (it.hasNext()) {
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224 KeyValueDescibeData data = it.next();
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225 if (data.isSelected()) {
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226 return data.getValue();
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227 }
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228 }
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229 }
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230 return null;
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231 }
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232
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233 /**
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234 * @param outputStream
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235 * @param parameters
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236 * @param measurements
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237 * @param timeSeriesName
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238 * @param chartStyle
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239 * @param chartLables
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240 * @throws IOException
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241 * @throws TechnicalChartException
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242 */
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243 protected void createChart(OutputStream outputStream,
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244 Collection<KeyValueDescibeData> parameters,
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245 Collection<KeyValueDescibeData> measurements,
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246 ChartStyle chartStyle, ChartLabels chartLables,
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247 String uuid) throws IOException,
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248 TechnicalChartException {
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249 ChartFactory chartFactory = new ChartFactory();
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250 chartFactory.createSimpleTimeSeriesChart(chartLables, chartStyle,
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251 parameters, measurements, outputStream, this
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252 .getChartResult(uuid));
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253 }
117
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254
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255 protected ChartStyle creatStyle(int witdh, int height) {
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256 // TODO Konfigurierbar machen
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257 de.intevation.gnv.chart.Insets lInsets = new de.intevation.gnv.chart.Insets(
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258 5d, 5d, 5d, 5d);
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259 Dimension lChartSize = new Dimension(witdh, height);
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260 return new ChartStyle(Color.white, new Color(230, 230, 230),
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261 Color.white, Color.white, true, true, lInsets, lChartSize);
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262 }
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263
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264 protected Collection<KeyValueDescibeData> getParameters() {
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265 String collectionName = "parameterid"; // TODO: Konfigurierbar machen
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266 return this.getCollection(collectionName);
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267 }
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268
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269 protected Collection<KeyValueDescibeData> getMeasurements() {
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270 String collectionName = "measurementid"; // TODO: Konfigurierbar machen
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271 return this.getCollection(collectionName);
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272 }
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273
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274 /**
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275 * @param collectionName
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276 * @return
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277 */
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278 protected Collection<KeyValueDescibeData> getCollection(
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279 String collectionName) {
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280 Iterator<Object> it = this.descibeData.iterator();
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281 while (it.hasNext()) {
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282
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283 Object o = it.next();
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284
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285 if (o instanceof NamedCollection<?>) {
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286 NamedCollection<KeyValueDescibeData> nc = (NamedCollection<KeyValueDescibeData>) o;
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287 if (nc.getName().equals(collectionName)) {
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288 return nc;
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289 }
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290 }
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291 }
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292 return null;
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293 }
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294 }
http://dive4elements.wald.intevation.org