List of usage examples for org.jfree.data.time TimeSeries TimeSeries
public TimeSeries(Comparable name, Class timePeriodClass)
From source file:org.jfree.chart.demo.CompassFormatDemo.java
/** * Creates a sample dataset./*w w w . ja va 2s .c o m*/ * * @param count the item count. * * @return the dataset. */ private XYDataset createDirectionDataset(final int count) { final TimeSeriesCollection dataset = new TimeSeriesCollection(); final TimeSeries s1 = new TimeSeries("Wind Direction", Minute.class); RegularTimePeriod start = new Minute(); double direction = 180.0; for (int i = 0; i < count; i++) { s1.add(start, direction); start = start.next(); direction = direction + (Math.random() - 0.5) * 15.0; if (direction < 0.0) { direction = direction + 360.0; } else if (direction > 360.0) { direction = direction - 360.0; } } dataset.addSeries(s1); return dataset; }
From source file:net.sourceforge.openforecast.examples.ExponentialSmoothingChartDemo.java
/** * Creates a dataset, consisting of two series of monthly data. * @return the dataset.//from ww w.j a va 2 s . com */ public XYDataset createDataset() { TimeSeries observations = new TimeSeries("Quarterly Sales", Quarter.class); observations.add(new Quarter(1, 1990), 362.0); observations.add(new Quarter(2, 1990), 385.0); observations.add(new Quarter(3, 1990), 432.0); observations.add(new Quarter(4, 1990), 341.0); observations.add(new Quarter(1, 1991), 382.0); observations.add(new Quarter(2, 1991), 409.0); observations.add(new Quarter(3, 1991), 498.0); observations.add(new Quarter(4, 1991), 387.0); observations.add(new Quarter(1, 1992), 473.0); observations.add(new Quarter(2, 1992), 513.0); observations.add(new Quarter(3, 1992), 582.0); observations.add(new Quarter(4, 1992), 474.0); observations.add(new Quarter(1, 1993), 544.0); observations.add(new Quarter(2, 1993), 582.0); observations.add(new Quarter(3, 1993), 681.0); observations.add(new Quarter(4, 1993), 557.0); observations.add(new Quarter(1, 1994), 628.0); observations.add(new Quarter(2, 1994), 707.0); observations.add(new Quarter(3, 1994), 773.0); observations.add(new Quarter(4, 1994), 592.0); observations.add(new Quarter(1, 1995), 627.0); observations.add(new Quarter(2, 1995), 725.0); observations.add(new Quarter(3, 1995), 854.0); observations.add(new Quarter(4, 1995), 661.0); fc = new TimeSeries("Forecast values", Quarter.class); fc.add(new Quarter(1, 1990), 0.0); fc.add(new Quarter(2, 1990), 0.0); fc.add(new Quarter(3, 1990), 0.0); fc.add(new Quarter(4, 1990), 0.0); fc.add(new Quarter(1, 1991), 0.0); fc.add(new Quarter(2, 1991), 0.0); fc.add(new Quarter(3, 1991), 0.0); fc.add(new Quarter(4, 1991), 0.0); fc.add(new Quarter(1, 1992), 0.0); fc.add(new Quarter(2, 1992), 0.0); fc.add(new Quarter(3, 1992), 0.0); fc.add(new Quarter(4, 1992), 0.0); fc.add(new Quarter(1, 1993), 0.0); fc.add(new Quarter(2, 1993), 0.0); fc.add(new Quarter(3, 1993), 0.0); fc.add(new Quarter(4, 1993), 0.0); fc.add(new Quarter(1, 1994), 0.0); fc.add(new Quarter(2, 1994), 0.0); fc.add(new Quarter(3, 1994), 0.0); fc.add(new Quarter(4, 1994), 0.0); fc.add(new Quarter(1, 1995), 0.0); fc.add(new Quarter(2, 1995), 0.0); fc.add(new Quarter(3, 1995), 0.0); fc.add(new Quarter(4, 1995), 0.0); fc.add(new Quarter(1, 1996), 0.0); fc.add(new Quarter(2, 1996), 0.0); fc.add(new Quarter(3, 1996), 0.0); fc.add(new Quarter(4, 1996), 0.0); fc.add(new Quarter(1, 1997), 0.0); fc.add(new Quarter(2, 1997), 0.0); fc.add(new Quarter(3, 1997), 0.0); fc.add(new Quarter(4, 1997), 0.0); fc.add(new Quarter(1, 1998), 0.0); fc.add(new Quarter(2, 1998), 0.0); fc.add(new Quarter(3, 1998), 0.0); fc.add(new Quarter(4, 1998), 0.0); DataSet initDataSet = getDataSet(observations, 0, 100); initDataSet.setTimeVariable("t"); initDataSet.setPeriodsPerYear(4); // Get "best fit" simple exponential smoothing model ForecastingModel sesModel = SimpleExponentialSmoothingModel.getBestFitModel(initDataSet); TimeSeries sesSeries = getForecastTimeSeries(sesModel, initDataSet, 0, 30, "Simple Exponential Smoothing"); // Get "best fit" double exponential smoothing model ForecastingModel desModel = DoubleExponentialSmoothingModel.getBestFitModel(initDataSet); TimeSeries desSeries = getForecastTimeSeries(desModel, initDataSet, 0, 30, "Double Exponential Smoothing"); // Get "best fit" triple exponential smoothing model ForecastingModel tesModel = TripleExponentialSmoothingModel.getBestFitModel(initDataSet); TimeSeries tesSeries = getForecastTimeSeries(tesModel, initDataSet, 5, 28, "Triple Exponential Smoothing"); TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(observations); dataset.addSeries(sesSeries); dataset.addSeries(desSeries); dataset.addSeries(tesSeries); return dataset; }
From source file:org.geoserver.monitor.web.ActivityChartBasePanel.java
BufferedDynamicImageResource queryAndRenderChart(Monitor monitor, Date[] range) {
Query q = new Query();
q.properties("startTime").between(range[0], range[1]);
DataGatherer gatherer = new DataGatherer();
monitor.query(q, gatherer);//from w ww . j a v a 2s . c o m
HashMap<RegularTimePeriod, Integer> data = gatherer.getData();
Class timeUnitClass = getTimePeriod(range[0]).getClass();
TimeSeries series = new TimeSeries("foo", timeUnitClass);
for (Map.Entry<RegularTimePeriod, Integer> d : data.entrySet()) {
series.add(new TimeSeriesDataItem(d.getKey(), d.getValue()));
}
TimeSeriesCollection dataset = new TimeSeriesCollection(series);
final JFreeChart chart = createTimeSeriesChart(getChartTitle(range),
"Time (" + timeUnitClass.getSimpleName() + ")", "Requests", dataset);
BufferedDynamicImageResource resource = new BufferedDynamicImageResource();
resource.setImage(chart.createBufferedImage(700, 500));
return resource;
}
From source file:org.miloss.fgsms.services.rs.impl.reports.os.CpuUsageReport.java
@Override public void generateReport(OutputStreamWriter data, List<String> urls, String path, List<String> files, TimeRange range, String currentuser, SecurityWrapper classification, WebServiceContext ctx) throws IOException { Connection con = Utility.getPerformanceDBConnection(); try {//from ww w .j a va 2 s . c o m PreparedStatement cmd = null; ResultSet rs = null; JFreeChart chart = null; data.append("<hr /><h2>").append(GetDisplayName()).append("</h2>"); data.append(GetHtmlFormattedHelp() + "<br />"); data.append("<table class=\"table table-hover\"><tr><th>URI</th><th>Average CPU Usage %</th></tr>"); TimeSeriesCollection col = new TimeSeriesCollection(); for (int i = 0; i < urls.size(); i++) { if (!isPolicyTypeOf(urls.get(i), PolicyType.MACHINE) && !isPolicyTypeOf(urls.get(i), PolicyType.PROCESS)) { continue; } //https://github.com/mil-oss/fgsms/issues/112 if (!UserIdentityUtil.hasReadAccess(currentuser, "getReport", urls.get(i), classification, ctx)) { continue; } String url = Utility.encodeHTML(BaseReportGenerator.getPolicyDisplayName(urls.get(i))); data.append("<tr><td>").append(url).append("</td>"); double average = 0; try { cmd = con.prepareStatement( "select avg(percentcpu) from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); if (rs.next()) { average = rs.getDouble(1); } } catch (Exception ex) { log.log(Level.ERROR, "Error opening or querying the database.", ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } data.append("<td>").append(average + "").append("</td></tr>"); TimeSeries ts = new TimeSeries(url, Millisecond.class); try { //ok now get the raw data.... cmd = con.prepareStatement( "select percentcpu,utcdatetime from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); while (rs.next()) { GregorianCalendar gcal = new GregorianCalendar(); gcal.setTimeInMillis(rs.getLong(2)); Millisecond m = new Millisecond(gcal.getTime()); ts.addOrUpdate(m, rs.getDouble(1)); } col.addSeries(ts); } catch (Exception ex) { log.log(Level.ERROR, "Error opening or querying the database.", ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } } data.append("</table>"); chart = org.jfree.chart.ChartFactory.createTimeSeriesChart(GetDisplayName(), "Timestamp", "Percent", col, true, false, false); try { ChartUtilities.saveChartAsPNG(new File( path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"), chart, 1500, 400); data.append("<img src=\"image_").append(this.getClass().getSimpleName()).append(".png\">"); files.add(path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"); // } } catch (IOException ex) { log.log(Level.ERROR, "Error saving chart image for request", ex); } } catch (Exception ex) { log.log(Level.ERROR, null, ex); } finally { DBUtils.safeClose(con); } }
From source file:org.miloss.fgsms.services.rs.impl.reports.os.OpenFilesByProcess.java
@Override public void generateReport(OutputStreamWriter data, List<String> urls, String path, List<String> files, TimeRange range, String currentuser, SecurityWrapper classification, WebServiceContext ctx) throws IOException { Connection con = Utility.getPerformanceDBConnection(); try {/*from w w w.j ava 2 s . c o m*/ PreparedStatement cmd = null; ResultSet rs = null; JFreeChart chart = null; data.append("<hr /><h2>").append(GetDisplayName()).append("</h2>"); data.append(GetHtmlFormattedHelp() + "<br />"); data.append( "<table class=\"table table-hover\"><tr><th>URI</th><th>Average Open File Handles Count</th></tr>"); TimeSeriesCollection col = new TimeSeriesCollection(); for (int i = 0; i < urls.size(); i++) { if (!isPolicyTypeOf(urls.get(i), PolicyType.PROCESS)) { continue; } //https://github.com/mil-oss/fgsms/issues/112 if (!UserIdentityUtil.hasReadAccess(currentuser, "getReport", urls.get(i), classification, ctx)) { continue; } String url = Utility.encodeHTML(BaseReportGenerator.getPolicyDisplayName(urls.get(i))); data.append("<tr><td>").append(url).append("</td>"); double average = 0; try { cmd = con.prepareStatement( "select avg(openfiles) from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); if (rs.next()) { average = rs.getDouble(1); } } catch (Exception ex) { log.log(Level.WARN, null, ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } data.append("<td>").append(average + "").append("</td></tr>"); TimeSeries ts = new TimeSeries(url, Millisecond.class); try { //ok now get the raw data.... cmd = con.prepareStatement( "select utcdatetime, openfiles from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); while (rs.next()) { GregorianCalendar gcal = new GregorianCalendar(); gcal.setTimeInMillis(rs.getLong(1)); Millisecond m = new Millisecond(gcal.getTime()); ts.addOrUpdate(m, rs.getLong(2)); } } catch (Exception ex) { log.log(Level.WARN, null, ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } col.addSeries(ts); } chart = org.jfree.chart.ChartFactory.createTimeSeriesChart(GetDisplayName(), "Timestamp", "Count", col, true, false, false); data.append("</table>"); try { // if (set.getRowCount() != 0) { ChartUtilities.saveChartAsPNG(new File( path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"), chart, 1500, 400); data.append("<img src=\"image_").append(this.getClass().getSimpleName()).append(".png\">"); files.add(path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"); //} } catch (IOException ex) { log.log(Level.ERROR, "Error saving chart image for request", ex); } } catch (Exception ex) { log.log(Level.ERROR, null, ex); } finally { DBUtils.safeClose(con); } }
From source file:org.miloss.fgsms.services.rs.impl.reports.os.MemoryUsageReport.java
@Override public void generateReport(OutputStreamWriter data, List<String> urls, String path, List<String> files, TimeRange range, String currentuser, SecurityWrapper classification, WebServiceContext ctx) throws IOException { Connection con = Utility.getPerformanceDBConnection(); try {//w ww . j a v a 2 s .c o m PreparedStatement cmd = null; ResultSet rs = null; JFreeChart chart = null; data.append("<hr /><h2>").append(GetDisplayName()).append("</h2>"); data.append(GetHtmlFormattedHelp() + "<br />"); data.append("<table class=\"table table-hover\"><tr><th>URI</th><th>Average Memory Usage (bytes)</tr>"); TimeSeriesCollection col = new TimeSeriesCollection(); for (int i = 0; i < urls.size(); i++) { if (!isPolicyTypeOf(urls.get(i), PolicyType.MACHINE) && !isPolicyTypeOf(urls.get(i), PolicyType.PROCESS)) { continue; } //https://github.com/mil-oss/fgsms/issues/112 if (!UserIdentityUtil.hasReadAccess(currentuser, "getReport", urls.get(i), classification, ctx)) { continue; } String url = Utility.encodeHTML(BaseReportGenerator.getPolicyDisplayName(urls.get(i))); try { data.append("<tr><td>").append(url).append("</td>"); double average = 0; try { cmd = con.prepareStatement( "select avg(memoryused) from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); if (rs.next()) { average = rs.getDouble(1); } } catch (Exception ex) { log.log(Level.WARN, null, ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } data.append("<td>").append(average + "").append("</td></tr>"); TimeSeries ts = new TimeSeries(url, Millisecond.class); try { //ok now get the raw data.... cmd = con.prepareStatement( "select memoryused,utcdatetime from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); while (rs.next()) { GregorianCalendar gcal = new GregorianCalendar(); gcal.setTimeInMillis(rs.getLong(2)); Millisecond m = new Millisecond(gcal.getTime()); ts.addOrUpdate(m, rs.getDouble(1)); } } catch (Exception ex) { log.log(Level.WARN, null, ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } col.addSeries(ts); } catch (Exception ex) { log.log(Level.ERROR, "Error opening or querying the database.", ex); } } chart = org.jfree.chart.ChartFactory.createTimeSeriesChart(GetDisplayName(), "Timestamp", "Bytes", col, true, false, false); data.append("</table>"); try { //if (set.getRowCount() != 0) { ChartUtilities.saveChartAsPNG(new File( path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"), chart, 1500, 400); data.append("<img src=\"image_").append(this.getClass().getSimpleName()).append(".png\">"); files.add(path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"); // } } catch (IOException ex) { log.log(Level.ERROR, "Error saving chart image for request", ex); } } catch (Exception ex) { log.log(Level.ERROR, null, ex); } finally { DBUtils.safeClose(con); } }
From source file:org.miloss.fgsms.services.rs.impl.reports.os.ThreadCount.java
@Override public void generateReport(OutputStreamWriter data, List<String> urls, String path, List<String> files, TimeRange range, String currentuser, SecurityWrapper classification, WebServiceContext ctx) throws IOException { Connection con = Utility.getPerformanceDBConnection(); try {/*from ww w. ja v a 2 s. c o m*/ PreparedStatement cmd = null; ResultSet rs = null; JFreeChart chart = null; data.append("<hr /><h2>").append(GetDisplayName()).append("</h2>"); data.append(GetHtmlFormattedHelp() + "<br />"); data.append("<table class=\"table table-hover\"><tr><th>URI</th><th>Average Thread Count</th></tr>"); TimeSeriesCollection col = new TimeSeriesCollection(); for (int i = 0; i < urls.size(); i++) { if (!isPolicyTypeOf(urls.get(i), PolicyType.MACHINE) && !isPolicyTypeOf(urls.get(i), PolicyType.PROCESS)) { continue; } //https://github.com/mil-oss/fgsms/issues/112 if (!UserIdentityUtil.hasReadAccess(currentuser, "getReport", urls.get(i), classification, ctx)) { continue; } String url = Utility.encodeHTML(BaseReportGenerator.getPolicyDisplayName(urls.get(i))); data.append("<tr><td>").append(url).append("</td>"); double average = 0; try { cmd = con.prepareStatement( "select avg(threads) from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); if (rs.next()) { average = rs.getDouble(1); } } catch (Exception ex) { log.log(Level.WARN, null, ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } data.append("<td>").append(average + "").append("</td></tr>"); TimeSeries ts = new TimeSeries(urls.get(i), Millisecond.class); try { //ok now get the raw data.... cmd = con.prepareStatement( "select threads,utcdatetime from rawdatamachineprocess where uri=? and utcdatetime > ? and utcdatetime < ?;"); cmd.setString(1, urls.get(i)); cmd.setLong(2, range.getStart().getTimeInMillis()); cmd.setLong(3, range.getEnd().getTimeInMillis()); rs = cmd.executeQuery(); while (rs.next()) { GregorianCalendar gcal = new GregorianCalendar(); gcal.setTimeInMillis(rs.getLong(2)); Millisecond m = new Millisecond(gcal.getTime()); ts.addOrUpdate(m, rs.getLong(1)); } } catch (Exception ex) { log.log(Level.WARN, null, ex); } finally { DBUtils.safeClose(rs); DBUtils.safeClose(cmd); } col.addSeries(ts); } data.append("</table>"); chart = org.jfree.chart.ChartFactory.createTimeSeriesChart(GetDisplayName(), "Timestamp", "Count", col, true, false, false); try { //if (set.getRowCount() != 0) { ChartUtilities.saveChartAsPNG(new File( path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"), chart, 1500, 400); data.append("<img src=\"image_").append(this.getClass().getSimpleName()).append(".png\">"); files.add(path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"); // } } catch (IOException ex) { log.log(Level.ERROR, "Error saving chart image for request", ex); } } catch (Exception ex) { log.log(Level.ERROR, null, ex); } finally { DBUtils.safeClose(con); } }
From source file:org.jfree.experimental.chart.demo.XYTitleAnnotationDemo1.java
/** * Creates a dataset, consisting of two series of monthly data. * * @return The dataset./*from w ww .j ava 2s . co m*/ */ private static XYDataset createDataset() { TimeSeries s1 = new TimeSeries("L&G European Index Trust", Month.class); s1.add(new Month(2, 2001), 181.8); s1.add(new Month(3, 2001), 167.3); s1.add(new Month(4, 2001), 153.8); s1.add(new Month(5, 2001), 167.6); s1.add(new Month(6, 2001), 158.8); s1.add(new Month(7, 2001), 148.3); s1.add(new Month(8, 2001), 153.9); s1.add(new Month(9, 2001), 142.7); s1.add(new Month(10, 2001), 123.2); s1.add(new Month(11, 2001), 131.8); s1.add(new Month(12, 2001), 139.6); s1.add(new Month(1, 2002), 142.9); s1.add(new Month(2, 2002), 138.7); s1.add(new Month(3, 2002), 137.3); s1.add(new Month(4, 2002), 143.9); s1.add(new Month(5, 2002), 139.8); s1.add(new Month(6, 2002), 137.0); s1.add(new Month(7, 2002), 132.8); TimeSeries s2 = new TimeSeries("L&G UK Index Trust", Month.class); s2.add(new Month(2, 2001), 129.6); s2.add(new Month(3, 2001), 123.2); s2.add(new Month(4, 2001), 117.2); s2.add(new Month(5, 2001), 124.1); s2.add(new Month(6, 2001), 122.6); s2.add(new Month(7, 2001), 119.2); s2.add(new Month(8, 2001), 116.5); s2.add(new Month(9, 2001), 112.7); s2.add(new Month(10, 2001), 101.5); s2.add(new Month(11, 2001), 106.1); s2.add(new Month(12, 2001), 110.3); s2.add(new Month(1, 2002), 111.7); s2.add(new Month(2, 2002), 111.0); s2.add(new Month(3, 2002), 109.6); s2.add(new Month(4, 2002), 113.2); s2.add(new Month(5, 2002), 111.6); s2.add(new Month(6, 2002), 108.8); s2.add(new Month(7, 2002), 101.6); TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(s1); dataset.addSeries(s2); return dataset; }
From source file:com.elasticgrid.examples.video.components.WatchChart.java
public StreamResponse onChart(final int width, final int height, Object... rest) throws RemoteException, InterruptedException { String serviceID = (String) rest[2]; String watchID = (String) rest[3]; System.out.println("Service ID is: " + serviceID + ". Watch ID is: " + watchID); List<WatchDataSource> watches = ServiceLocator .getWatchDataSourcesByServiceID(ConfigUtil.createServiceID(serviceID)); WatchDataSource watch = null;/*from w w w. j av a 2 s . c o m*/ for (WatchDataSource w : watches) { System.out.println("Testing with " + w.getID()); if (w.getID().equals(watchID)) watch = w; } if (watch == null) return null; TimeSeries s1 = new TimeSeries(watch.getID(), FixedMillisecond.class); for (Calculable calculable : watch.getCalculable()) s1.add(new FixedMillisecond(calculable.getWhen()), calculable.getValue()); TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(s1); final JFreeChart chart = ChartFactory.createTimeSeriesChart(watch.getID() + " Watch", // title "Date", // x-axis label "Value", // y-axis label dataset, // data true, // create legend? true, // generate tooltips? false // generate URLs? ); return new StreamResponse() { public String getContentType() { return "image/png"; } public InputStream getStream() throws IOException { BufferedImage image = chart.createBufferedImage(width, height); ByteArrayOutputStream byteArray = new ByteArrayOutputStream(); ChartUtilities.writeBufferedImageAsPNG(byteArray, image); return new ByteArrayInputStream(byteArray.toByteArray()); } public void prepareResponse(Response response) { } }; }
From source file:org.jfree.chart.demo.TimeSeriesDemo6.java
/** * Creates a dataset, consisting of two series of monthly data. * * @return the dataset.// w w w . ja v a 2s .c o m */ public XYDataset createDataset() { final double value = 0.0; final TimeSeries s1 = new TimeSeries("Series 1", Month.class); s1.add(new Month(2, 2001), value); s1.add(new Month(3, 2001), value); s1.add(new Month(4, 2001), value); s1.add(new Month(5, 2001), value); s1.add(new Month(6, 2001), value); s1.add(new Month(7, 2001), value); s1.add(new Month(8, 2001), value); s1.add(new Month(9, 2001), value); s1.add(new Month(10, 2001), value); s1.add(new Month(11, 2001), value); s1.add(new Month(12, 2001), value); s1.add(new Month(1, 2002), value); s1.add(new Month(2, 2002), value); s1.add(new Month(3, 2002), value); s1.add(new Month(4, 2002), value); s1.add(new Month(5, 2002), value); s1.add(new Month(6, 2002), value); s1.add(new Month(7, 2002), value); final TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(s1); return dataset; }