applications/old-notification-supplier/src/main/java/org/opendaylight/openflowplugin/applications/old/notification/supplier/impl/item/AbstractNotifSupplierForItem.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8
   9 package org.opendaylight.openflowplugin.applications.old.notification.supplier.impl.item;
  10
  11 import com.google.common.base.Preconditions;
  12 import java.util.Map.Entry;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  15 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  16 import org.opendaylight.openflowplugin.applications.old.notification.supplier.OldNotifSupplierForItem;
  17 import org.opendaylight.openflowplugin.applications.old.notification.supplier.impl.AbstractNotifSupplierBase;
  18 import org.opendaylight.yangtools.yang.binding.DataObject;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.binding.Notification;
  21
  22 /**
  23  * Class is package protected abstract implementation for all Old Root Items
  24  * Notification Suppliers
  25  *
  26  * @param <O> - data tree item Object
  27  * @param <C> - Create notification
  28  * @param <U> - Update notification
  29  * @param <D> - Delete notification
  30  */
  31 abstract class AbstractNotifSupplierForItem<O extends DataObject,
  32                                             C extends Notification,
  33                                             U extends Notification,
  34                                             D extends Notification>
  35                     extends AbstractNotifSupplierBase<O>
  36                     implements OldNotifSupplierForItem<O, C, U, D> {
  37
  38     private final NotificationProviderService notifProviderService;
  39
  40     /**
  41      * Default constructor for all item Notification Supplier implementation
  42      *
  43      * @param notifProviderService - notification publisher
  44      * @param db - DataBroker for DataChangeEvent registration
  45      * @param clazz - Statistics Notification Class
  46      */
  47     public AbstractNotifSupplierForItem(final NotificationProviderService notifProviderService, final DataBroker db,
  48             final Class<O> clazz) {
  49         super(db, clazz);
  50         this.notifProviderService = Preconditions.checkNotNull(notifProviderService);
  51     }
  52
  53     @Override
  54     public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  55         Preconditions.checkArgument(change != null, "ChangeEvent can not be null!");
  56         if (change.getCreatedData() != null && !(change.getCreatedData().isEmpty())) {
  57             for (final Entry<InstanceIdentifier<?>, DataObject> createDataObj : change.getCreatedData().entrySet()) {
  58                 if (clazz.isAssignableFrom(createDataObj.getKey().getTargetType())) {
  59                     final InstanceIdentifier<O> ii = createDataObj.getKey().firstIdentifierOf(clazz);
  60                     final C notif = createNotification((O) createDataObj.getValue(), ii);
  61                     if (notif != null) {
  62                         notifProviderService.publish(notif);
  63                     }
  64                 }
  65             }
  66         }
  67
  68         if (change.getUpdatedData() != null && !(change.getUpdatedData().isEmpty())) {
  69             for (final Entry<InstanceIdentifier<?>, DataObject> updateDataObj : change.getUpdatedData().entrySet()) {
  70                 if (clazz.isAssignableFrom(updateDataObj.getKey().getTargetType())) {
  71                     final InstanceIdentifier<O> ii = updateDataObj.getKey().firstIdentifierOf(clazz);
  72                     final U notif = updateNotification((O) updateDataObj.getValue(), ii);
  73                     if (notif != null) {
  74                         notifProviderService.publish(notif);
  75                     }
  76                 }
  77             }
  78         }
  79
  80         if (change.getRemovedPaths() != null && !(change.getRemovedPaths().isEmpty())) {
  81             for (final InstanceIdentifier<?> deleteDataPath : change.getRemovedPaths()) {
  82                 if (clazz.isAssignableFrom(deleteDataPath.getTargetType())) {
  83                     final D notif = deleteNotification(deleteDataPath.firstIdentifierOf(clazz));
  84                     if (notif != null) {
  85                         notifProviderService.publish(notif);
  86                     }
  87                 }
  88             }
  89         }
  90     }
  91 }