Example usage for org.jfree.data.time TimeTableXYDataset add

Introduction

In this page you can find the example usage for org.jfree.data.time TimeTableXYDataset add.

Prototype

public void add(TimePeriod period, Number y, Comparable seriesName, boolean notify) 

Source Link

Document

Adds a new data item to the dataset and, if requested, sends a DatasetChangeEvent to all registered listeners.

Usage

From source file:org.openmrs.module.usagestatistics.web.view.chart.DateRangeChartView.java

@Override
protected JFreeChart createChart(Map<String, Object> model, HttpServletRequest request) {
    UsageStatisticsService svc = Context.getService(UsageStatisticsService.class);
    List<Object[]> stats = svc.getDateRangeStats(null, null, null);

    String xAxisLabel = ContextProvider.getMessage("usagestatistics.chart.date");
    String yAxisLabel = ContextProvider.getMessage("usagestatistics.chart.records");
    String seriesUsages = ContextProvider.getMessage("usagestatistics.results.views");
    String seriesEncounters = ContextProvider.getMessage("usagestatistics.results.encounters");
    String seriesUpdates = ContextProvider.getMessage("usagestatistics.results.updates");

    // Get minimum date value in returned statistics
    Date minDate = (stats.size() > 0) ? (Date) (stats.get(0)[0]) : getFromDate();
    if (minDate.getTime() > getFromDate().getTime()) // Min date must be at least a week ago
        minDate = getFromDate();//from   w w  w  . j  a v a 2s.  c  o m
    // Maximum date defaults to today
    Date maxDate = (getUntilDate() != null) ? getUntilDate() : new Date();

    // Build a zeroized dataset of all dates in range       
    TimeTableXYDataset dataset = new TimeTableXYDataset();
    Calendar cal = new GregorianCalendar();
    cal.setTime(minDate);
    while (cal.getTime().getTime() <= maxDate.getTime()) {
        Date day = cal.getTime();
        dataset.add(new Day(day), 0, seriesUsages, false);
        dataset.add(new Day(day), 0, seriesEncounters, false);
        dataset.add(new Day(day), 0, seriesUpdates, false);
        cal.add(Calendar.DATE, 1);
    }

    // Update the dates for which we have statistics
    for (Object[] row : stats) {
        Date date = (Date) row[0];
        int usages = ((Number) row[1]).intValue();
        int encounters = ((Number) row[2]).intValue();
        int updates = ((Number) row[3]).intValue();
        dataset.add(new Day(date), usages, seriesUsages, false);
        dataset.add(new Day(date), encounters, seriesEncounters, false);
        dataset.add(new Day(date), updates, seriesUpdates, false);
    }
    dataset.setDomainIsPointsInTime(true);

    JFreeChart chart = ChartFactory.createXYLineChart(null, xAxisLabel, yAxisLabel, dataset,
            PlotOrientation.VERTICAL, true, false, false);
    DateAxis xAxis = new DateAxis(xAxisLabel);

    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setDomainAxis(xAxis);

    return chart;
}

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