2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.openflowplugin.applications.notification.supplier.impl;
11 import com.google.common.base.Preconditions;
13 import java.util.Collection;
14 import java.util.Map.Entry;
15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
16 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
17 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
19 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
20 import org.opendaylight.openflowplugin.applications.notification.supplier.NotificationSupplierForItemRoot;
21 import org.opendaylight.yangtools.yang.binding.DataObject;
22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
23 import org.opendaylight.yangtools.yang.binding.Notification;
26 * Class is package protected abstract implementation for all Root Items
27 * Notification Suppliers
29 * @param <O> - data tree item Object
30 * @param <C> - Create notification
31 * @param <D> - Delete notification
33 abstract class AbstractNotificationSupplierForItemRoot<O extends DataObject,
34 C extends Notification,
35 D extends Notification>
36 extends AbstractNotificationSupplierBase<O>
37 implements NotificationSupplierForItemRoot<O, C, D> {
39 private final NotificationProviderService notificationProviderService;
42 * Default constructor for all Root Item Notification Supplier implementation
44 * @param notificationProviderService - notification publisher
45 * @param db - DataBroker for DataChangeEvent registration
46 * @param clazz - Statistics Notification Class
48 public AbstractNotificationSupplierForItemRoot(final NotificationProviderService notificationProviderService, final DataBroker db,
49 final Class<O> clazz) {
51 this.notificationProviderService = Preconditions.checkNotNull(notificationProviderService);
55 public void onDataTreeChanged(Collection<DataTreeModification<O>> changes) {
57 Preconditions.checkNotNull(changes, "Changes may not be null!");
59 for (DataTreeModification<O> change : changes) {
60 final InstanceIdentifier<O> key = change.getRootPath().getRootIdentifier();
61 final DataObjectModification<O> mod = change.getRootNode();
62 switch (mod.getModificationType()) {
64 remove(key, mod.getDataBefore());
66 case SUBTREE_MODIFIED:
67 update(key, mod.getDataBefore(), mod.getDataAfter());
70 if (mod.getDataBefore() == null) {
71 add(key, mod.getDataAfter());
73 update(key, mod.getDataBefore(), mod.getDataAfter());
77 throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
83 public void add(InstanceIdentifier<O> identifier , O add ){
85 final C notif = createNotification(add, identifier);
87 notificationProviderService.publish(notif);
91 public void remove(InstanceIdentifier<O> identifier , O del){
92 final D notif = deleteNotification(identifier.firstIdentifierOf(clazz));
94 notificationProviderService.publish(notif);
98 public void update(InstanceIdentifier<O> identifier , O before, O after){