applications/notification-supplier/src/main/java/org/opendaylight/openflowplugin/applications/notification/supplier/impl/item/stat/GroupStatNotificationSupplierImpl.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.notification.supplier.impl.item.stat;
  10
  11 import com.google.common.base.Preconditions;
  12 import java.util.Collections;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupStatisticsUpdated;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupStatisticsUpdatedBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.NodeGroupStatistics;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.group.statistics.GroupStatistics;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStatsBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24
  25 /**
  26  * Implementation define a contract between {@link GroupStatistics} data object
  27  * and {@link GroupStatisticsUpdated} notification.
  28  */
  29 public class GroupStatNotificationSupplierImpl extends AbstractNotificationSupplierForItemStat<GroupStatistics,
  30         GroupStatisticsUpdated> {
  31
  32     private static final InstanceIdentifier<GroupStatistics> GROUP_STATISTICS_INSTANCE_IDENTIFIER = getNodeWildII()
  33             .augmentation(FlowCapableNode.class).child(Group.class).augmentation(NodeGroupStatistics.class)
  34             .child(GroupStatistics.class);
  35
  36     /**
  37      * Constructor register supplier as DataTreeChangeListener and create wildCarded InstanceIdentifier.
  38      *
  39      * @param notifProviderService - {@link NotificationProviderService}
  40      * @param db                   - {@link DataBroker}
  41      */
  42     public GroupStatNotificationSupplierImpl(final NotificationProviderService notifProviderService,
  43                                              final DataBroker db) {
  44         super(notifProviderService, db, GroupStatistics.class);
  45     }
  46
  47     @Override
  48     public InstanceIdentifier<GroupStatistics> getWildCardPath() {
  49         return GROUP_STATISTICS_INSTANCE_IDENTIFIER;
  50     }
  51
  52     @Override
  53     public GroupStatisticsUpdated createNotification(final GroupStatistics groupStatistics,
  54                                                      final InstanceIdentifier<GroupStatistics> path) {
  55         Preconditions.checkArgument(groupStatistics != null);
  56         Preconditions.checkArgument(path != null);
  57
  58         final GroupStatisticsUpdatedBuilder builder = new GroupStatisticsUpdatedBuilder();
  59         builder.setId(getNodeId(path));
  60         builder.setMoreReplies(Boolean.FALSE);
  61         // TODO : fix if it needs, but we have to ask DataStore for the NodeConnector list
  62         builder.setNodeConnector(Collections.<NodeConnector>emptyList());
  63         builder.setGroupStats(Collections.singletonList(new GroupStatsBuilder(groupStatistics).build()));
  64         return builder.build();
  65     }
  66 }
  67