Example usage for org.jfree.data DefaultTableXYDataset addSeries

Introduction

In this page you can find the example usage for org.jfree.data DefaultTableXYDataset addSeries.

Prototype

public void addSeries(final XYSeries series)

Source Link

Document

Adds a series to the collection and sends a DatasetChangeEvent to all registered listeners.

Usage

From source file:org.jboss.console.plugins.monitor.ManageSnapshotServlet.java

protected void doit(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String action = req.getParameter("action");
    if (action == null) {
        error("unknown action: ", req, resp);
        return;//ww w  . jav a 2 s  .c o m
    }
    action = action.trim();
    MBeanServer mbeanServer = MBeanServerLocator.locateJBoss();
    ObjectName monitorObjectName;
    String attribute = null;
    try {
        monitorObjectName = new ObjectName(req.getParameter("monitorObjectName"));
        attribute = (String) mbeanServer.getAttribute(monitorObjectName, "ObservedAttribute");
    } catch (Exception ex) {
        error("Malformed Monitor ObjectName: " + req.getParameter("monitorObjectName"), req, resp);
        return;
    }
    if (action.equals("Start Snapshot")) {
        Object[] nullArgs = {};
        String[] nullSig = {};
        try {
            mbeanServer.invoke(monitorObjectName, "startSnapshot", nullArgs, nullSig);
        } catch (Exception ex) {
            error("Problem invoking startSnapshot: " + ex.toString(), req, resp);
            return;
        }
        req.getRequestDispatcher("/manageSnapshot.jsp").forward(req, resp);
        return;
    } else if (action.equals("Stop Snapshot")) {
        Object[] nullArgs = {};
        String[] nullSig = {};
        try {
            mbeanServer.invoke(monitorObjectName, "endSnapshot", nullArgs, nullSig);
        } catch (Exception ex) {
            error("Problem invoking endSnapshot: " + ex.toString(), req, resp);
            return;
        }
        req.getRequestDispatcher("/manageSnapshot.jsp").forward(req, resp);
        return;
    } else if (action.equals("Clear Dataset")) {
        Object[] nullArgs = {};
        String[] nullSig = {};
        try {
            mbeanServer.invoke(monitorObjectName, "clearData", nullArgs, nullSig);
        } catch (Exception ex) {
            error("Problem invoking clearData: " + ex.toString(), req, resp);
            return;
        }
        req.setAttribute("error", "Dataset Cleared!");
        req.getRequestDispatcher("/manageSnapshot.jsp").forward(req, resp);
        return;
    } else if (action.equals("Remove Snapshot")) {
        try {
            log.debug("removing snapshot: " + monitorObjectName.toString());
            mbeanServer.unregisterMBean(monitorObjectName);
            req.getRequestDispatcher("/ServerInfo.jsp").forward(req, resp);
        } catch (Exception ex) {
            error("Failed to Remove Monitor: " + ex.toString(), req, resp);
        }
        return;
    } else if (action.equals("Show Dataset")) {
        ArrayList data = null;
        long start, end = 0;
        try {
            data = (ArrayList) mbeanServer.getAttribute(monitorObjectName, "Data");
            start = ((Long) mbeanServer.getAttribute(monitorObjectName, "StartTime")).longValue();
            end = ((Long) mbeanServer.getAttribute(monitorObjectName, "EndTime")).longValue();
        } catch (Exception ex) {
            error("Problem invoking getData: " + ex.toString(), req, resp);
            return;
        }
        resp.setContentType("text/html");
        PrintWriter writer = resp.getWriter();
        writer.println("<html>");
        writer.println("<body>");
        writer.println("<b>Start Time:</b> " + start + "ms<br>");
        writer.println("<b>End Time:</b> " + end + "ms<br>");
        writer.println("<b>Total Time:</b> " + (end - start) + "ms<br>");
        writer.println("<br><table border=\"0\">");
        for (int i = 0; i < data.size(); i++) {
            writer.println("<tr><td>" + data.get(i) + "</td></tr");
        }
        writer.println("</table></body></html>");
        return;
    } else if (action.equals("Graph Dataset")) {
        ArrayList data = null;
        long start, end = 0;
        try {
            data = (ArrayList) mbeanServer.getAttribute(monitorObjectName, "Data");
            start = ((Long) mbeanServer.getAttribute(monitorObjectName, "StartTime")).longValue();
            end = ((Long) mbeanServer.getAttribute(monitorObjectName, "EndTime")).longValue();
        } catch (Exception ex) {
            error("Problem invoking getData: " + ex.toString(), req, resp);
            return;
        }
        XYSeries set = new XYSeries(attribute, false, false);
        for (int i = 0; i < data.size(); i++) {
            set.add(new Integer(i), (Number) data.get(i));
        }
        DefaultTableXYDataset dataset = new DefaultTableXYDataset(false);
        dataset.addSeries(set);
        JFreeChart chart = ChartFactory.createXYLineChart("JMX Attribute: " + attribute, "count", attribute,
                dataset, PlotOrientation.VERTICAL, true, true, false);
        resp.setContentType("image/png");
        OutputStream out = resp.getOutputStream();
        ChartUtilities.writeChartAsPNG(out, chart, 400, 300);
        out.close();
        return;
    }
    error("Unknown Action", req, resp);
    return;
}