您好,最近我开始研究 JMX bean 实现。
然后我发布下面的 bean,运行 JConsole,连接到 bean,注册通知。但是,当发送通知时,我收到以下错误:
2012 年 4 月 13 日下午 5:31:26 ClientNotifForwarder NotifFetcher.fetchOneNotif 警告:无法反序列化通知:java.io.NotSerializableException:com。* .jmx.TaskMergeMBean
任何帮助都将受到欢迎,我花了一天的大部分时间试图解决这个问题。
谢谢,乔纳森
public class TaskMBean extends NotificationBroadcasterSupport implements DynamicMBean {
private final TaskStateChangedEventListener taskChangedListener;
public TaskMBean (DriverIf driver) {
taskChangedListener= new TaskStateChangedEventListener (this);
driver.registerMergeTaskStateChangedListener(mergeTaskChangedListener);
}
@Override
public MBeanNotificationInfo[] getNotificationInfo() {
String[] types = new String[] { AttributeChangeNotification.ATTRIBUTE_CHANGE };
String name = AttributeChangeNotification.class.getName();
String description = "An attribute of this MBean has changed";
MBeanNotificationInfo info = new MBeanNotificationInfo(types, name,description);
return new MBeanNotificationInfo[] { info };
}
@Override
public Object getAttribute(String attribute) throws AttributeNotFoundException, MBeanException,
ReflectionException {
// TODO Auto-generated method stub
return null;
}
@Override
public void setAttribute(Attribute attribute) throws AttributeNotFoundException,
InvalidAttributeValueException, MBeanException, ReflectionException {
// TODO Auto-generated method stub
}
@Override
public AttributeList getAttributes(String[] attributes) {
// TODO Auto-generated method stub
return null;
}
@Override
public AttributeList setAttributes(AttributeList attributes) {
// TODO Auto-generated method stub
return null;
}
@Override
public Object invoke(String actionName, Object[] params, String[] signature)
throws MBeanException, ReflectionException {
// TODO Auto-generated method stub
return null;
}
@Override
public MBeanInfo getMBeanInfo() {
MBeanNotificationInfo haltInfo =
new MBeanNotificationInfo(
new String[] { "NOTIFICATION_TYPE_MERGE_STATE_CHANGE" },
Notification.class.getName(), "server halt on fatal error");
MBeanNotificationInfo[] notifications = new MBeanNotificationInfo[] { haltInfo };
return new OpenMBeanInfoSupport(XhiveMergeMBean.class.getName(), "", null, null, null,
notifications);
}
}
public class TaskStateChangedEventListener implements Serializable {
static final String NOTIFICATION_TYPE_MERGE_STATE_CHANGE = "com.xhive.lucene.merge";
private final NotificationBroadcasterSupport broadcaster;
private int notificationSequence = 1;
public TaskStateChangedEventListener (NotificationBroadcasterSupport broadcaster) {
this.broadcaster = broadcaster;
}
@Override
public void notify(Object source) {
Notification n =
new AttributeChangeNotification(this, notificationSequence++, System.currentTimeMillis(), "", "", "int", 1, 2);
broadcaster.sendNotification(n);
}
}