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
   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.flow.inventory.rev130819.tables.Table;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowId;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowStatisticsData;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdateBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapListBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.statistics.FlowStatistics;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26
  27 /**
  28  * Implementation define a contract between {@link FlowStatistics} data object
  29  * and {@link FlowsStatisticsUpdate} notification.
  30  */
  31 public class FlowStatNotificationSupplierImpl extends AbstractNotificationSupplierForItemStat<FlowStatistics,
  32         FlowsStatisticsUpdate> {
  33
  34     private static final InstanceIdentifier<FlowStatistics> FLOW_STATISTICS_INSTANCE_IDENTIFIER = getNodeWildII()
  35             .augmentation(FlowCapableNode.class).child(Table.class).child(Flow.class)
  36             .augmentation(FlowStatisticsData.class).child(FlowStatistics.class);
  37
  38     /**
  39      * Constructor register supplier as DataTreeChangeListener and create wildCarded InstanceIdentifier.
  40      *
  41      * @param notifProviderService - {@link NotificationProviderService}
  42      * @param db                   - {@link DataBroker}
  43      */
  44     public FlowStatNotificationSupplierImpl(final NotificationProviderService notifProviderService,
  45                                             final DataBroker db) {
  46         super(notifProviderService, db, FlowStatistics.class);
  47     }
  48
  49     @Override
  50     public InstanceIdentifier<FlowStatistics> getWildCardPath() {
  51         return FLOW_STATISTICS_INSTANCE_IDENTIFIER;
  52     }
  53
  54     @Override
  55     public FlowsStatisticsUpdate createNotification(final FlowStatistics flowStatistics,
  56                                                     final InstanceIdentifier<FlowStatistics> path) {
  57         Preconditions.checkArgument(flowStatistics != null);
  58         Preconditions.checkArgument(path != null);
  59
  60         final FlowAndStatisticsMapListBuilder fsmlBuilder = new FlowAndStatisticsMapListBuilder(flowStatistics);
  61         fsmlBuilder.setFlowId(new FlowId(path.firstKeyOf(Flow.class).getId().getValue()));
  62
  63         final FlowsStatisticsUpdateBuilder builder = new FlowsStatisticsUpdateBuilder();
  64         builder.setId(getNodeId(path));
  65         builder.setMoreReplies(Boolean.FALSE);
  66         // NOTE : fix if it needs, but we have to ask DataStore for the NodeConnector list
  67         builder.setNodeConnector(Collections.<NodeConnector>emptyList());
  68         builder.setFlowAndStatisticsMapList(Collections.singletonList(fsmlBuilder.build()));
  69         return builder.build();
  70     }
  71 }
  72