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.inventory.rev130819.tables.table.FlowKey;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowStatisticsData;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdateBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapListBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.statistics.FlowStatistics;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27
  28 /**
  29  * Implementation define a contract between {@link FlowStatistics} data object
  30  * and {@link FlowsStatisticsUpdate} notification.
  31  */
  32 public class FlowStatNotificationSupplierImpl extends AbstractNotificationSupplierForItemStat<FlowStatistics,
  33         FlowsStatisticsUpdate> {
  34
  35     private static final InstanceIdentifier<FlowStatistics> FLOW_STATISTICS_INSTANCE_IDENTIFIER = getNodeWildII()
  36             .augmentation(FlowCapableNode.class).child(Table.class).child(Flow.class)
  37             .augmentation(FlowStatisticsData.class).child(FlowStatistics.class);
  38
  39     /**
  40      * Constructor register supplier as DataTreeChangeListener and create wildCarded InstanceIdentifier.
  41      *
  42      * @param notifProviderService - {@link NotificationProviderService}
  43      * @param db                   - {@link DataBroker}
  44      */
  45     public FlowStatNotificationSupplierImpl(final NotificationProviderService notifProviderService,
  46                                             final DataBroker db) {
  47         super(notifProviderService, db, FlowStatistics.class);
  48     }
  49
  50     @Override
  51     public InstanceIdentifier<FlowStatistics> getWildCardPath() {
  52         return FLOW_STATISTICS_INSTANCE_IDENTIFIER;
  53     }
  54
  55     @Override
  56     public FlowsStatisticsUpdate createNotification(final FlowStatistics flowStatistics,
  57                                                     final InstanceIdentifier<FlowStatistics> path) {
  58         Preconditions.checkArgument(flowStatistics != null);
  59         Preconditions.checkArgument(path != null);
  60
  61         final FlowAndStatisticsMapListBuilder fsmlBuilder = new FlowAndStatisticsMapListBuilder(flowStatistics);
  62         fsmlBuilder.setFlowId(new FlowId(path.firstKeyOf(Flow.class, FlowKey.class).getId().getValue()));
  63
  64         final FlowsStatisticsUpdateBuilder builder = new FlowsStatisticsUpdateBuilder();
  65         builder.setId(getNodeId(path));
  66         builder.setMoreReplies(Boolean.FALSE);
  67         // NOTE : fix if it needs, but we have to ask DataStore for the NodeConnector list
  68         builder.setNodeConnector(Collections.<NodeConnector>emptyList());
  69         builder.setFlowAndStatisticsMapList(Collections.singletonList(fsmlBuilder.build()));
  70         return builder.build();
  71     }
  72 }
  73