Examples with MBeanServerNotification javax.management.MBeanServerNotification used on opensource projects

Example 6 with MBeanServerNotification

use of javax.management.MBeanServerNotification in project jdk8u_jdk by JetBrains.

the class RelationService method purgeRelations.

/**
     * Purges the relations.
     *
     * <P>Depending on the purgeFlag value, this method is either called
     * automatically when a notification is received for the unregistration of
     * an MBean referenced in a relation (if the flag is set to true), or not
     * (if the flag is set to false).
     * <P>In that case it is up to the user to call it to maintain the
     * consistency of the relations. To be kept in mind that if an MBean is
     * unregistered and the purge not done immediately, if the ObjectName is
     * reused and assigned to another MBean referenced in a relation, calling
     * manually this purgeRelations() method will cause trouble, as will
     * consider the ObjectName as corresponding to the unregistered MBean, not
     * seeing the new one.
     *
     * <P>The behavior depends on the cardinality of the role where the
     * unregistered MBean is referenced:
     * <P>- if removing one MBean reference in the role makes its number of
     * references less than the minimum degree, the relation has to be removed.
     * <P>- if the remaining number of references after removing the MBean
     * reference is still in the cardinality range, keep the relation and
     * update it calling its handleMBeanUnregistration() callback.
     *
     * @exception RelationServiceNotRegisteredException  if the Relation
     * Service is not registered in the MBean Server.
     */
public void purgeRelations() throws RelationServiceNotRegisteredException {
    RELATION_LOGGER.entering(RelationService.class.getName(), "purgeRelations");
    // Can throw RelationServiceNotRegisteredException
    isActive();
    // Revisit [cebro] Handle the CIM "Delete" and "IfDeleted" qualifier:
    //    if the unregistered MBean has the "IfDeleted" qualifier,
    //    possible that the relation itself or other referenced MBeans
    //    have to be removed (then a notification would have to be sent
    //    to inform that they should be unregistered.
    // Clones the list of notifications to be able to still receive new
    // notifications while proceeding those ones
    List<MBeanServerNotification> localUnregNtfList;
    synchronized (myRefedMBeanObjName2RelIdsMap) {
        localUnregNtfList = new ArrayList<MBeanServerNotification>(myUnregNtfList);
        // Resets list
        myUnregNtfList = new ArrayList<MBeanServerNotification>();
    }
    // Updates the listener filter to avoid receiving notifications for
    // those MBeans again
    // Makes also a local "myRefedMBeanObjName2RelIdsMap" map, mapping
    // ObjectName -> relId -> roles, to remove the MBean from the global
    // map
    // List of references to be removed from the listener filter
    List<ObjectName> obsRefList = new ArrayList<ObjectName>();
    // Map including ObjectNames for unregistered MBeans, with
    // referencing relation ids and roles
    Map<ObjectName, Map<String, List<String>>> localMBean2RelIdMap = new HashMap<ObjectName, Map<String, List<String>>>();
    synchronized (myRefedMBeanObjName2RelIdsMap) {
        for (MBeanServerNotification currNtf : localUnregNtfList) {
            ObjectName unregMBeanName = currNtf.getMBeanName();
            // Adds the unregsitered MBean in the list of references to
            // remove from the listener filter
            obsRefList.add(unregMBeanName);
            // Retrieves the associated map of relation ids and roles
            Map<String, List<String>> relIdMap = myRefedMBeanObjName2RelIdsMap.get(unregMBeanName);
            localMBean2RelIdMap.put(unregMBeanName, relIdMap);
            myRefedMBeanObjName2RelIdsMap.remove(unregMBeanName);
        }
    }
    // Updates the listener
    // Can throw RelationServiceNotRegisteredException
    updateUnregistrationListener(null, obsRefList);
    for (MBeanServerNotification currNtf : localUnregNtfList) {
        ObjectName unregMBeanName = currNtf.getMBeanName();
        // Retrieves the relations where the MBean is referenced
        Map<String, List<String>> localRelIdMap = localMBean2RelIdMap.get(unregMBeanName);
        // referenced
        for (Map.Entry<String, List<String>> currRel : localRelIdMap.entrySet()) {
            final String currRelId = currRel.getKey();
            // List of roles of the relation where the MBean is
            // referenced
            List<String> localRoleNameList = currRel.getValue();
            // RoleNotFoundException, MBeanException
            try {
                handleReferenceUnregistration(currRelId, unregMBeanName, localRoleNameList);
            } catch (RelationNotFoundException exc1) {
                throw new RuntimeException(exc1.getMessage());
            } catch (RoleNotFoundException exc2) {
                throw new RuntimeException(exc2.getMessage());
            }
        }
    }
    RELATION_LOGGER.exiting(RelationService.class.getName(), "purgeRelations");
    return;
}

Example 7 with MBeanServerNotification

use of javax.management.MBeanServerNotification in project jdk8u_jdk by JetBrains.

the class DefaultMBeanServerInterceptor method sendNotification.

/**
     * Sends an MBeanServerNotifications with the specified type for the
     * MBean with the specified ObjectName
     */
private void sendNotification(String NotifType, ObjectName name) {
    // ------------------------------
    // ------------------------------
    // ---------------------
    // Create notification
    // ---------------------
    MBeanServerNotification notif = new MBeanServerNotification(NotifType, MBeanServerDelegate.DELEGATE_NAME, 0, name);
    if (MBEANSERVER_LOGGER.isLoggable(Level.FINER)) {
        MBEANSERVER_LOGGER.logp(Level.FINER, DefaultMBeanServerInterceptor.class.getName(), "sendNotification", NotifType + " " + name);
    }
    delegate.sendNotification(notif);
}

Example 8 with MBeanServerNotification

use of javax.management.MBeanServerNotification in project jdk8u_jdk by JetBrains.

the class MBeanServerNotificationFilter method isNotificationEnabled.

//
// NotificationFilter interface
//
/**
     * Invoked before sending the specified notification to the listener.
     * <P>If:
     * <P>- the ObjectName of the concerned MBean is selected (explicitly OR
     * (implicitly and not explicitly deselected))
     * <P>AND
     * <P>- the type of the operation (registration or unregistration) is
     * selected
     * <P>then the notification is sent to the listener.
     *
     * @param notif  The notification to be sent.
     *
     * @return true if the notification has to be sent to the listener, false
     * otherwise.
     *
     * @exception IllegalArgumentException  if null parameter
     */
public synchronized boolean isNotificationEnabled(Notification notif) throws IllegalArgumentException {
    if (notif == null) {
        String excMsg = "Invalid parameter.";
        throw new IllegalArgumentException(excMsg);
    }
    RELATION_LOGGER.entering(MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", notif);
    // Checks the type first
    String ntfType = notif.getType();
    Vector<String> enabledTypes = getEnabledTypes();
    if (!(enabledTypes.contains(ntfType))) {
        RELATION_LOGGER.logp(Level.FINER, MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", "Type not selected, exiting");
        return false;
    }
    // We have a MBeanServerNotification: downcasts it
    MBeanServerNotification mbsNtf = (MBeanServerNotification) notif;
    // Checks the ObjectName
    ObjectName objName = mbsNtf.getMBeanName();
    // Is it selected?
    boolean isSelectedFlg = false;
    if (selectedNames != null) {
        // checks for explicit selection
        if (selectedNames.size() == 0) {
            // All are explicitly not selected
            RELATION_LOGGER.logp(Level.FINER, MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", "No ObjectNames selected, exiting");
            return false;
        }
        isSelectedFlg = selectedNames.contains(objName);
        if (!isSelectedFlg) {
            // Not in the explicit selected list
            RELATION_LOGGER.logp(Level.FINER, MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", "ObjectName not in selected list, exiting");
            return false;
        }
    }
    if (!isSelectedFlg) {
        if (deselectedNames == null) {
            // All are implicitly deselected and it is not explicitly
            // selected
            RELATION_LOGGER.logp(Level.FINER, MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", "ObjectName not selected, and all " + "names deselected, exiting");
            return false;
        } else if (deselectedNames.contains(objName)) {
            // Explicitly deselected
            RELATION_LOGGER.logp(Level.FINER, MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", "ObjectName explicitly not selected, exiting");
            return false;
        }
    }
    RELATION_LOGGER.logp(Level.FINER, MBeanServerNotificationFilter.class.getName(), "isNotificationEnabled", "ObjectName selected, exiting");
    return true;
}

Example 9 with MBeanServerNotification

use of javax.management.MBeanServerNotification in project geode by apache.

the class MBeanUtil method registerServerNotificationListener.

static void registerServerNotificationListener() {
    if (mbeanServer == null) {
        return;
    }
    try {
        // the MBeanServerDelegate name is spec'ed as the following...
        ObjectName delegate = ObjectName.getInstance("JMImplementation:type=MBeanServerDelegate");
        mbeanServer.addNotificationListener(delegate, new NotificationListener() {

            public void handleNotification(Notification notification, Object handback) {
                MBeanServerNotification serverNotification = (MBeanServerNotification) notification;
                if (MBeanServerNotification.UNREGISTRATION_NOTIFICATION.equals(serverNotification.getType())) {
                    ObjectName objectName = serverNotification.getMBeanName();
                    synchronized (MBeanUtil.managedResources) {
                        Object entry = MBeanUtil.managedResources.get(objectName);
                        if (entry == null)
                            return;
                        if (!(entry instanceof ManagedResource)) {
                            throw new ClassCastException(LocalizedStrings.MBeanUtil_0_IS_NOT_A_MANAGEDRESOURCE.toLocalizedString(new Object[] { entry.getClass().getName() }));
                        }
                        ManagedResource resource = (ManagedResource) entry;
                        {
                            // call cleanup on managedResource
                            cleanupResource(resource);
                        }
                    }
                }
            }
        }, null, null);
    } catch (JMException e) {
        logStackTrace(Level.WARN, e, LocalizedStrings.MBeanUtil_FAILED_TO_REGISTER_SERVERNOTIFICATIONLISTENER.toLocalizedString());
    } catch (JMRuntimeException e) {
        logStackTrace(Level.WARN, e, LocalizedStrings.MBeanUtil_FAILED_TO_REGISTER_SERVERNOTIFICATIONLISTENER.toLocalizedString());
    }
}

Example 10 with MBeanServerNotification

use of javax.management.MBeanServerNotification in project logging-log4j2 by apache.

the class ClientGui method handleNotificationInAwtEventThread.

private void handleNotificationInAwtEventThread(final Notification notif, final Object paramObject) {
    if (StatusLoggerAdminMBean.NOTIF_TYPE_MESSAGE.equals(notif.getType())) {
        if (!(paramObject instanceof ObjectName)) {
            handle("Invalid notification object type", new ClassCastException(paramObject.getClass().getName()));
            return;
        }
        final ObjectName param = (ObjectName) paramObject;
        final JTextArea text = statusLogTextAreaMap.get(param);
        if (text != null) {
            text.append(notif.getMessage() + '\n');
        }
        return;
    }
    if (notif instanceof MBeanServerNotification) {
        final MBeanServerNotification mbsn = (MBeanServerNotification) notif;
        final ObjectName mbeanName = mbsn.getMBeanName();
        if (MBeanServerNotification.REGISTRATION_NOTIFICATION.equals(notif.getType())) {
            onMBeanRegistered(mbeanName);
        } else if (MBeanServerNotification.UNREGISTRATION_NOTIFICATION.equals(notif.getType())) {
            onMBeanUnregistered(mbeanName);
        }
    }
}