Example usage for org.jfree.data.time TimeSeries addOrUpdate

Introduction

In this page you can find the example usage for org.jfree.data.time TimeSeries addOrUpdate.

Prototype

public TimeSeriesDataItem addOrUpdate(TimeSeriesDataItem item) 

Source Link

Document

Adds or updates an item in the times series and sends a SeriesChangeEvent to all registered listeners.

Usage

From source file:org.miloss.fgsms.services.rs.impl.reports.AvailabilityByService.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 v  a 2s .  c  o m

        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>Number of status changes</th><th>Percent Uptime</th><th>Percent Downtime</th></tr>");
        DecimalFormat percentFormat = new DecimalFormat("###.#####");
        TimeSeriesCollection col = new TimeSeriesCollection();
        for (int i = 0; i < urls.size(); i++) {
            //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)));
            TimeSeries s1 = new TimeSeries(url, org.jfree.data.time.Millisecond.class);
            try {
                data.append("<tr><td>").append(url).append("</td>");
                List<StatusRecordsExt> records = getStatusRecords(urls.get(i), range, con);
                //special case, no status records available
                if (records == null || records.isEmpty()) {
                    data.append("<td>-</td><td>-</td></tr>");
                    continue;
                }
                double uptime = getUptimePercentage(records, range);
                data.append("<td>").append(records.size() + "").append("</td><td>")
                        .append(percentFormat.format(uptime)).append("</td><td>")
                        .append(percentFormat.format(100 - uptime)).append("</td></tr>");
                TimeSeriesDataItem t = null;
                for (int k = 0; k < records.size(); k++) {
                    if (records.get(k).status) {
                        try {
                            t = new TimeSeriesDataItem(new Millisecond(records.get(k).gcal.getTime()), 1);
                            s1.addOrUpdate(t);
                        } catch (Exception ex) {
                            log.log(Level.WARN, null, ex);
                        }
                    } else {
                        try {
                            t = new TimeSeriesDataItem(new Millisecond(records.get(k).gcal.getTime()), 0);
                            s1.addOrUpdate(t);
                        } catch (Exception ex) {
                            log.log(Level.WARN, null, ex);
                        }
                    }
                    col.addSeries(s1);
                }

            } catch (Exception ex) {
                log.log(Level.ERROR, "Error opening or querying the database.", ex);
            }

        }
        chart = org.jfree.chart.ChartFactory.createTimeSeriesChart(GetDisplayName(), "Timestamp", "Status", col,
                true, false, false);

        data.append("</table>");
        try {
            ChartUtilities.saveChartAsPNG(new File(
                    path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"), chart,
                    1500, 800);
            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);
    }
}

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