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/* Display some basic rsyslogd counter variables.
*
* Please note that this program requires imdiag to be loaded inside rsyslogd.
*
* Copyright 2009 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Rsyslog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rsyslog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Rsyslog. If not, see <http://www.gnu.org/licenses/>.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
package com.rsyslog.gui.diaggui;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import com.rsyslog.lib.DiagSess;
public class Counters extends Frame {
private TextField MainQItems;
private TextField RefreshInterval;
private Checkbox AutoRefresh;
private DiagSess diagSess;
private Timer timer;
private void createDiagSess() {
try {
diagSess = new DiagSess("127.0.0.1", 13500); // TODO: values from GUI
diagSess.connect();
}
catch(IOException e) {
System.out.println("Exception trying to open diag session:\n" + e.toString());
}
}
private void createGUI() {
MainQItems = new TextField();
MainQItems.setColumns(8);
Panel pCenter = new Panel();
pCenter.setLayout(new FlowLayout());
pCenter.add(new Label("MainQ Items:"));
pCenter.add(MainQItems);
RefreshInterval = new TextField();
RefreshInterval.setColumns(5);
RefreshInterval.setText("100");
AutoRefresh = new Checkbox("Auto Refresh", false);
AutoRefresh.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
setAutoRefresh();
}
});
Button b = new Button("Refresh now");
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
refreshCounters();
}
});
Panel pSouth = new Panel();
pSouth.setLayout(new FlowLayout());
pSouth.add(AutoRefresh);
pSouth.add(new Label("Interval (ms):"));
pSouth.add(RefreshInterval);
pSouth.add(b);
pack();
setTitle("rsyslogd Counters");
setLayout(new BorderLayout());
add(pCenter, BorderLayout.CENTER);
add(pSouth, BorderLayout.SOUTH);
setSize(400,500);
}
public Counters() {
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e){
Counters.this.dispose();
}
});
createGUI();
createDiagSess();
setAutoRefresh();
setVisible(true);
}
private void startTimer() {
timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
public void run() {
refreshCounters();
}
}, 0, 100);
}
private void stopTimer() {
if(timer != null) {
timer.cancel();
timer = null;
}
}
/** set auto-refresh mode. It is either turned on or off, depending on the
* status of the relevant check box. */
private void setAutoRefresh() {
if(AutoRefresh.getState() == true) {
startTimer();
} else {
stopTimer();
}
}
/** refresh counter display from rsyslogd data. Does a network round-trip. */
private void refreshCounters() {
try {
String res = diagSess.request("getmainmsgqueuesize");
MainQItems.setText(res);
}
catch(IOException e) {
System.out.println("Exception during request:\n" + e.toString());
}
}
}
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