applications/notification-supplier/src/main/java/org/opendaylight/openflowplugin/applications/notification/supplier/impl/item/FlowNotificationSupplierImpl.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;
  10
  11 import com.google.common.base.Preconditions;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  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.service.rev130819.FlowAdded;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAddedBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemovedBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdatedBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowRef;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25
  26 /**
  27  * Implementation define a contract between {@link Flow} data object
  28  * and {@link FlowAdded}, {@link FlowUpdated} and {@link FlowRemoved} notifications.
  29  */
  30 public class FlowNotificationSupplierImpl extends AbstractNotificationSupplierForItem<Flow, FlowAdded, FlowUpdated,
  31         FlowRemoved> {
  32
  33     private static final InstanceIdentifier<Flow> FLOW_INSTANCE_IDENTIFIER = getNodeWildII()
  34             .augmentation(FlowCapableNode.class).child(Table.class).child(Flow.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 FlowNotificationSupplierImpl(final NotificationProviderService notifProviderService, final DataBroker db) {
  43         super(notifProviderService, db, Flow.class);
  44     }
  45
  46     @Override
  47     public InstanceIdentifier<Flow> getWildCardPath() {
  48         return FLOW_INSTANCE_IDENTIFIER;
  49     }
  50
  51     @Override
  52     public FlowAdded createNotification(final Flow dataTreeItemObject, final InstanceIdentifier<Flow> path) {
  53         Preconditions.checkArgument(dataTreeItemObject != null);
  54         Preconditions.checkArgument(path != null);
  55         final FlowAddedBuilder builder = new FlowAddedBuilder(dataTreeItemObject);
  56         builder.setFlowRef(new FlowRef(path));
  57         builder.setNode(createNodeRef(path));
  58         return builder.build();
  59     }
  60
  61     @Override
  62     public FlowUpdated updateNotification(final Flow flow, final InstanceIdentifier<Flow> path) {
  63         Preconditions.checkArgument(flow != null);
  64         Preconditions.checkArgument(path != null);
  65         final FlowUpdatedBuilder builder = new FlowUpdatedBuilder(flow);
  66         builder.setFlowRef(new FlowRef(path));
  67         builder.setNode(createNodeRef(path));
  68         return builder.build();
  69     }
  70
  71     @Override
  72     public FlowRemoved deleteNotification(final InstanceIdentifier<Flow> path) {
  73         Preconditions.checkArgument(path != null);
  74         final FlowRemovedBuilder builder = new FlowRemovedBuilder();
  75         builder.setFlowRef(new FlowRef(path));
  76         builder.setNode(createNodeRef(path));
  77         return builder.build();
  78     }
  79 }
  80