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package org.glassfish.admin.amxtest;
import com.sun.appserv.management.base.AMX;
import com.sun.appserv.management.base.Util;
import com.sun.appserv.management.util.jmx.JMXUtil;
import com.sun.appserv.management.util.jmx.MBeanRegistrationListener;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import java.io.IOException;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/**
A NotificationListener which tracks registration of MBeans.
*/
public final class RegistrationListener
extends MBeanRegistrationListener {
private final MBeanServerConnection mConn;
private final Set<ObjectName> mRegistered;
private final Set<ObjectName> mUnregistered;
private final Set<ObjectName> mCurrentlyRegistered;
private RegistrationListener(
final String name,
final MBeanServerConnection conn)
throws InstanceNotFoundException, java.io.IOException {
super("RegistrationListener", conn, null);
mConn = conn;
mRegistered = new HashSet<ObjectName>();
mUnregistered = new HashSet<ObjectName>();
mCurrentlyRegistered = new HashSet<ObjectName>();
queryAllAMX();
}
public static RegistrationListener
createInstance(
final String name,
final MBeanServerConnection conn)
throws InstanceNotFoundException, java.io.IOException {
final RegistrationListener listener = new RegistrationListener(name, conn);
JMXUtil.listenToMBeanServerDelegate(conn, listener, null, null);
return listener;
}
private void
queryAllAMX() {
try {
final ObjectName pat = Util.newObjectNamePattern(AMX.JMX_DOMAIN, "*");
final Set<ObjectName> all = JMXUtil.queryNames(mConn, pat, null);
mCurrentlyRegistered.addAll(all);
}
catch (IOException e) {
}
}
public void
notifsLost() {
queryAllAMX();
}
private boolean
isAMX(final ObjectName objectName) {
return objectName.getDomain().equals(AMX.JMX_DOMAIN);
}
protected synchronized void
mbeanRegistered(final ObjectName objectName) {
if (isAMX(objectName)) {
mRegistered.add(objectName);
mCurrentlyRegistered.add(objectName);
}
}
protected synchronized void
mbeanUnregistered(final ObjectName objectName) {
if (isAMX(objectName)) {
mUnregistered.add(objectName);
mCurrentlyRegistered.remove(objectName);
}
}
public Set<ObjectName>
getRegistered() {
return Collections.unmodifiableSet(mRegistered);
}
public Set<ObjectName>
getUnregistered() {
return Collections.unmodifiableSet(mUnregistered);
}
public synchronized Set<ObjectName>
getCurrentlyRegistered() {
final Set<ObjectName> all = new HashSet<ObjectName>(mCurrentlyRegistered);
return all;
}
}