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1
18
19
20 import org.objectweb.util.monolog.Monolog;
21 import org.objectweb.util.monolog.api.BasicLevel;
22 import org.objectweb.util.monolog.api.Handler;
23 import org.objectweb.util.monolog.api.Logger;
24 import org.objectweb.util.monolog.api.LoggerFactory;
25 import org.objectweb.util.monolog.api.MonologFactory;
26
27 import java.util.Date  ;
28
29 import javax.management.ListenerNotFoundException ;
30 import javax.management.Notification ;
31 import javax.management.NotificationEmitter ;
32 import javax.management.NotificationListener ;
33
34
35
40 public class JMX implements NotificationListener {
41 public static void main(String [] args) {
42 LoggerFactory lf;
43 switch(args.length) {
44 case 0:
45 lf = Monolog.initialize();
48 break;
49 case 1:
50 lf = Monolog.getMonologFactory(args[0]);
52 break;
53 default:
54 System.out.println("Syntax error!\nUsage: java Simple [<monolog file name>]");
55 return;
56 }
57 JMX s = new JMX(lf);
58 s.activateNodification();
59 s.foo();
60 s.desactivateNodification();
61 }
62
63 private static final boolean DEBUG = false;
64
65 protected Logger logger = null;
66
67 public JMX(LoggerFactory lf) {
68 logger = lf.getLogger("monolog.examples.jmx");
69 }
70
71 private void activateNodification() {
72 Handler handler = Monolog.getMonologFactory().getHandler("jmxHandler");
73 if (handler == null || !(handler instanceof NotificationEmitter )) {
74 logger.log(BasicLevel.WARN, "No JMX handler in the configuration");
75 } else {
76 ((NotificationEmitter ) handler).addNotificationListener(this, null, null);
77 }
78 }
79 private void desactivateNodification() {
80 Handler handler = Monolog.getMonologFactory().getHandler("jmxHandler");
81 if (handler == null || !(handler instanceof NotificationEmitter )) {
82 logger.log(BasicLevel.WARN, "No JMX handler in the configuration");
83 } else {
84 try {
85 logger.log(BasicLevel.DEBUG, "remove notification");
86 ((NotificationEmitter ) handler).removeNotificationListener(this, null, null);
87 } catch (ListenerNotFoundException lnfe){
88 logger.log(BasicLevel.ERROR,
89 "Error when desactivate the notification:", lnfe);
90 }
91 }
92 }
93
94 public void foo() {
95 logger.log(BasicLevel.INFO, "foo : hello my favourite logger in info");
96 logger.log(BasicLevel.WARN, "bar : warning !");
97 logger.log(BasicLevel.ERROR, "This is a thrown exception", new Exception ());
98 }
99
100 public void handleNotification(
101 Notification notification,
102 java.lang.Object handback) {
103 StringBuffer msg = new StringBuffer (250);
104 msg.append("Notification ("
105 + new Date (notification.getTimeStamp()) + ")");
106 msg.append("\n\t-Type: " + notification.getType());
107 msg.append("\n\t-Src: " + notification.getSource());
108 msg.append("\n\t-TimeStamp: " + notification.getTimeStamp());
109 msg.append("\n\t-SequenceNumber: " + notification.getSequenceNumber());
110 msg.append("\n\t-Message: " + notification.getMessage());
111 msg.append("\n\t-UserData: " + notification.getUserData());
112 msg.append("\n");
113 System.out.println(msg);
114 }
115 }
116
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Java API By Example, From Geeks To Geeks.