applications/notification-supplier/src/main/java/org/opendaylight/openflowplugin/applications/notification/supplier/impl/item/stat/FlowStatNotificationSupplierImpl.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 package org.opendaylight.openflowplugin.applications.notification.supplier.impl.item.stat;
   9
  10 import com.google.common.base.Preconditions;
  11 import java.util.Collections;
  12 import org.opendaylight.mdsal.binding.api.DataBroker;
  13 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowId;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowStatisticsData;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdateBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapListBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.statistics.FlowStatistics;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25
  26 /**
  27  * Implementation define a contract between {@link FlowStatistics} data object
  28  * and {@link FlowsStatisticsUpdate} notification.
  29  */
  30 public class FlowStatNotificationSupplierImpl extends AbstractNotificationSupplierForItemStat<FlowStatistics,
  31         FlowsStatisticsUpdate> {
  32
  33     private static final InstanceIdentifier<FlowStatistics> FLOW_STATISTICS_INSTANCE_IDENTIFIER = getNodeWildII()
  34             .augmentation(FlowCapableNode.class).child(Table.class).child(Flow.class)
  35             .augmentation(FlowStatisticsData.class).child(FlowStatistics.class);
  36
  37     /**
  38      * Constructor register supplier as DataTreeChangeListener and create wildCarded InstanceIdentifier.
  39      *
  40      * @param notifProviderService - {@link NotificationPublishService}
  41      * @param db                   - {@link DataBroker}
  42      */
  43     public FlowStatNotificationSupplierImpl(final NotificationPublishService notifProviderService,
  44                                             final DataBroker db) {
  45         super(notifProviderService, db, FlowStatistics.class);
  46     }
  47
  48     @Override
  49     public InstanceIdentifier<FlowStatistics> getWildCardPath() {
  50         return FLOW_STATISTICS_INSTANCE_IDENTIFIER;
  51     }
  52
  53     @Override
  54     public FlowsStatisticsUpdate createNotification(final FlowStatistics flowStatistics,
  55                                                     final InstanceIdentifier<FlowStatistics> path) {
  56         Preconditions.checkArgument(flowStatistics != null);
  57         Preconditions.checkArgument(path != null);
  58
  59         final FlowAndStatisticsMapListBuilder fsmlBuilder = new FlowAndStatisticsMapListBuilder(flowStatistics);
  60         fsmlBuilder.setFlowId(new FlowId(path.firstKeyOf(Flow.class).getId().getValue()));
  61
  62         final FlowsStatisticsUpdateBuilder builder = new FlowsStatisticsUpdateBuilder();
  63         builder.setId(getNodeId(path));
  64         builder.setMoreReplies(Boolean.FALSE);
  65         // NOTE : fix if it needs, but we have to ask DataStore for the NodeConnector list
  66         builder.setNodeConnector(Collections.<NodeConnector>emptyList());
  67         builder.setFlowAndStatisticsMapList(Collections.singletonList(fsmlBuilder.build()));
  68         return builder.build();
  69     }
  70 }
  71