Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/TimeSeriesChart.java @ 514:d9d933e06875

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Fixed gnv/issue153 gnv-artifacts/trunk@608 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 22 Jan 2010 18:22:11 +0000
parents 7ff916744f40
children 4cbcc130cffc
rev   line source
298
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1 package de.intevation.gnv.chart;
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2
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3 import de.intevation.gnv.artifacts.ressource.RessourceFactory;
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4
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5 import de.intevation.gnv.geobackend.base.Result;
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6
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7 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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8
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9 import de.intevation.gnv.timeseries.gap.TimeGap;
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10
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11 import java.util.Collection;
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12 import java.util.Date;
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13 import java.util.HashMap;
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14 import java.util.Iterator;
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15 import java.util.Locale;
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16 import java.util.TimeZone;
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18 import org.apache.log4j.Logger;
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19
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20 import org.jfree.chart.ChartFactory;
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21 import org.jfree.chart.ChartTheme;
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23 import org.jfree.chart.axis.Axis;
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24 import org.jfree.chart.axis.DateAxis;
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26 import org.jfree.chart.plot.PlotOrientation;
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27 import org.jfree.chart.plot.XYPlot;
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29 import org.jfree.data.general.Series;
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30
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31 import org.jfree.data.time.Minute;
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32 import org.jfree.data.time.TimeSeries;
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33 import org.jfree.data.time.TimeSeriesCollection;
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34
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35 /**
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36 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
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37 */
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38 public class TimeSeriesChart
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39 extends AbstractXYLineChart
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40 {
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41
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42 private static final String DATE_FORMAT = "chart.timeseries.date.format";
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44 public static final String DEFAULT_DATE_FORMAT = "dd-MMM-yyyy";
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45
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46 private static final long NO_TIME_GAP = Long.MAX_VALUE - 1000;
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47
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48 private static Logger log = Logger.getLogger(TimeSeriesChart.class);
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50
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51 public TimeSeriesChart(
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52 ChartLabels labels,
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53 ChartTheme theme,
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54 Collection parameters,
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55 Collection measurements,
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56 Collection dates,
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57 Collection result,
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58 Collection timeGaps,
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59 Locale locale,
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60 boolean linesVisible,
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61 boolean shapesVisible
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62 ) {
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63 this.labels = labels;
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64 this.theme = theme;
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65 this.parameters = parameters;
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66 this.measurements = measurements;
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67 this.dates = dates;
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68 this.resultSet = result;
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69 this.timeGaps = timeGaps;
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70 this.locale = locale;
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71 this.PLOT_ORIENTATION = PlotOrientation.VERTICAL;
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72 this.linesVisible = linesVisible;
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73 this.shapesVisible = shapesVisible;
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74 this.datasets = new HashMap();
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75 this.ranges = new HashMap();
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76 }
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77
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78
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79 protected void initChart() {
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80 chart = ChartFactory.createTimeSeriesChart(
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81 labels.getTitle(),
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82 labels.getDomainAxisLabel(),
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83 null,
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84 null,
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85 true,
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86 false,
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87 false
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88 );
505
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89
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90 XYPlot plot = (XYPlot) chart.getPlot();
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91 plot.setDomainAxis(0, new DateAxis(
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92 labels.getDomainAxisLabel(), TimeZone.getDefault(), locale));
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93 }
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94
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95
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96 protected void initData() {
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97 log.debug("init data for timeseries chart");
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98
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99 String breakPoint1 = null;
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100 String breakPoint2 = null;
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101 String breakPoint3 = null;
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102
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103 Iterator iter = resultSet.iterator();
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104 Result row = null;
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105 String seriesName = null;
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106 String parameter = null;
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107 TimeSeries series = null;
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108
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109 int idx = 0;
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110 int startPos = 0;
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111 int endPos = 0;
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112 Date startDate = null;
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113 Date endDate = null;
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114
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115 Result[] results =
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116 (Result[]) resultSet.toArray(new Result[resultSet.size()]);
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117
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118 while (iter.hasNext()) {
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119 row = (Result) iter.next();
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120
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121 // add current data to plot and prepare for next one
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122 if (!row.getString("GROUP1").equals(breakPoint1) ||
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123 !row.getString("GROUP2").equals(breakPoint2) ||
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124 !row.getString("GROUP3").equals(breakPoint3)
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125 ) {
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126 log.debug("prepare data/plot for next dataset");
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127
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128 if(series != null) {
329
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129 // add gaps before adding series to chart
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130 startDate = results[startPos].getDate("XORDINATE");
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131 endDate = results[endPos-1].getDate("XORDINATE");
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132 addGaps(results,series,startDate,endDate,startPos,endPos);
364
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133 addSeries(series, parameter, idx);
329
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134
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135 startPos = endPos + 1;
298
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136 }
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137
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138 // prepare variables for next plot
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139 breakPoint1 = row.getString("GROUP1");
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140 breakPoint2 = row.getString("GROUP2");
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141 breakPoint3 = row.getString("GROUP3");
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142
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143 seriesName = createSeriesName(
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144 breakPoint1,
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145 breakPoint2,
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146 breakPoint3
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147 );
364
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148 parameter = findParameter(seriesName);
298
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149
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150 log.debug("next dataset is '" + seriesName + "'");
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151 series = new TimeSeries(seriesName, Minute.class);
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152 }
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153
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154 addValue(row, series);
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155 storeMaxRange(row.getDouble("YORDINATE"), parameter);
329
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156 endPos++;
298
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157 }
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158
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159 if (startPos < results.length && endPos-1 < results.length) {
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160 // add the last dataset if existing to plot and prepare its axis
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161 startDate = results[startPos].getDate("XORDINATE");
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162 endDate = results[endPos-1].getDate("XORDINATE");
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163 addGaps(results, series, startDate, endDate, startPos, endPos);
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164 addSeries(series, parameter, idx);
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165 }
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166
334
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167 addDatasets();
298
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168 }
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169
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170
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171 protected void addValue(Result row, Series series) {
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172 ((TimeSeries) series).addOrUpdate(
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173 new Minute(row.getDate("XORDINATE")),
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174 row.getDouble("YORDINATE")
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175 );
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176 }
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177
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178
364
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179 protected void addSeries(Series series, String parameter, int idx) {
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180 log.debug("add series (" + parameter + ")to timeseries chart");
298
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181
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182 if (series == null) {
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183 log.warn("no data to add");
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184 return;
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185 }
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186
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187 TimeSeriesCollection tsc = null;
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188
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189 if (datasets.containsKey(parameter))
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190 tsc = (TimeSeriesCollection) datasets.get(parameter);
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191 else
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192 tsc = new TimeSeriesCollection();
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193
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194 tsc.addSeries((TimeSeries) series);
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195 datasets.put(parameter, tsc);
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196 }
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197
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198
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199 protected void addDatasets() {
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200 Iterator iter = parameters.iterator();
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201 XYPlot plot = chart.getXYPlot();
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202 int idx = 0;
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203
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204 TimeSeriesCollection tsc = null;
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205 KeyValueDescibeData data = null;
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206 String key = null;
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207 while (iter.hasNext()) {
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208 data = (KeyValueDescibeData) iter.next();
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209 key = data.getValue();
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210
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211 if (datasets.containsKey(key)) {
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212 tsc = (TimeSeriesCollection)datasets.get(key);
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213 plot.setDataset(idx, tsc );
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214 log.debug("Added " + key + " parameter to plot.");
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215 prepareAxis(key, idx);
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216 adjustRenderer(
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217 idx++,
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218 tsc.getSeriesCount(),
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219 linesVisible,
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220 shapesVisible
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221 );
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222 }
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223 }
298
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224 }
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225
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226
315
63f8b3fb7d9a Localization of chart axis with locale which fits best to server and browser settings.
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227 protected void localizeDomainAxis(Axis axis, Locale locale) {
505
7ff916744f40 Solved issue152. Time intervals of timeseries axis are defined by JFreeChart automatically.
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228 // do nothing
315
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229 }
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230
63f8b3fb7d9a Localization of chart axis with locale which fits best to server and browser settings.
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231
350
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232 protected String getMessage(Locale locale, String key, String def) {
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233 return RessourceFactory.getInstance().getRessource(locale, key, def);
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234 }
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235
4e6aa2a8c4c0 Changed date representation in timeseries charts. Date format is sourced out to language ressource files.
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236
298
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237 protected String createSeriesName(
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238 String breakPoint1,
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239 String breakPoint2,
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240 String breakPoint3
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241 ) {
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242 log.debug("create seriesname of timeseries chart");
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243 return findValueTitle(parameters, breakPoint1) +
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244 " " +
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245 findValueTitle(measurements, breakPoint2) +
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246 "m";
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247 }
329
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248
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249
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250 protected void addGaps(
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251 Result[] results,
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252 Series series,
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253 Date startDate,
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254 Date endDate,
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255 int startPos,
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256 int endPos
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257 ) {
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258 int gapID = results[startPos].getInteger("GAPID");
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259 long maxDiff = calculateGapSize(
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260 startDate, endDate, startPos, endPos, gapID
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261 );
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262
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263 Date last = startDate;
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264 for (int i = startPos+1; i < endPos; i++) {
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265 Result res = results[i];
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266 Date now = res.getDate("XORDINATE");
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267
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268 if ((now.getTime() - last.getTime()) > maxDiff) {
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269 // add gap, add 1 minute to last date and add null value
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270 log.info(
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271 "Gap between " +
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272 last.toString() + " and " + now.toString()
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273 );
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274 last.setTime(last.getTime() + 60000);
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275 ((TimeSeries) series).addOrUpdate(new Minute(last), null);
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276 }
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277
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278 last = now;
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279 }
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280 }
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281
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282
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283 protected long calculateGapSize(
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284 Date start,
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285 Date end,
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286 int startPos,
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287 int endPos,
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288 int gapID
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289 ){
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290 long maxGap = (end.getTime() - start.getTime()) / 20;
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291 long interval = getTimeGapValue(start, end, startPos, endPos, gapID);
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292
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293 if (maxGap < interval)
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294 maxGap = interval + 10;
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295
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296 return maxGap;
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297 }
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298
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299
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300 protected long getTimeGapValue(
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301 Date dStart,
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302 Date dEnd,
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303 int pStart,
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304 int pEnd,
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305 int gapID
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306 ){
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307 long gap = 0;
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308
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309 if (gapID < 0 || gapID >= 99) {
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310
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311 if (gapID == -1) {
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312 // no gaps in meshes
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313 gap = NO_TIME_GAP;
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314 }
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315 else if (pEnd-pStart < 60) {
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316 gap = (3/(pEnd-pStart)) * (dEnd.getTime() - dStart.getTime());
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317 }
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318 }
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319 else{
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320 Iterator it = timeGaps.iterator();
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321
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322 while (it.hasNext()) {
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323 TimeGap tempTimeGap = (TimeGap) it.next();
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324
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325 if (tempTimeGap.getKey() == gapID){
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326 String unit = tempTimeGap.getUnit();
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327 int gapValue = tempTimeGap.getValue();
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328
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329 if (unit.equals(TimeGap.TIME_UNIT_MINUTE)) {
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330 gap = gapValue * TimeGap.MINUTE_IN_MILLIS;
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331 }
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332 else if (unit.equals(TimeGap.TIME_UNIT_HOUR)) {
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333 gap = gapValue * TimeGap.HOUR_IN_MILLIS;
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334 }
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335 else if (unit.equals(TimeGap.TIME_UNIT_DAY)) {
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336 gap = gapValue * TimeGap.DAY_IN_MILLIS;
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337 }
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338 else if (unit.equals(TimeGap.TIME_UNIT_WEEK)) {
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339 gap = gapValue * TimeGap.WEEK_IN_MILLIS;
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340 }
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341 else if (unit.equals(TimeGap.TIME_UNIT_MONTH)) {
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342 gap = gapValue * (TimeGap.DAY_IN_MILLIS *30);
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343 }
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344 else if (unit.equals(TimeGap.TIME_UNIT_YEAR)) {
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345 gap = gapValue * (TimeGap.DAY_IN_MILLIS *365);
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346 }
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347 break;
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348 }
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349 }
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350 }
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351
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352 return gap;
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353 }
298
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354 }
315
63f8b3fb7d9a Localization of chart axis with locale which fits best to server and browser settings.
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diff changeset
355 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org