groupbasedpolicy/src/main/java/org/opendaylight/groupbasedpolicy/resolver/ForwardingResolver.java

   1 /*
   2  * Copyright (c) 2016 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.groupbasedpolicy.resolver;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  13 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.ForwardingByTenant;
  17 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  18
  19 import com.google.common.annotations.VisibleForTesting;
  20 import com.google.common.base.Preconditions;
  21
  22 public class ForwardingResolver extends DataTreeChangeHandler<ForwardingByTenant> {
  23
  24     public ForwardingResolver(DataBroker dataProvider) {
  25         super(dataProvider);
  26     }
  27
  28     @Override
  29     protected void onWrite(DataObjectModification<ForwardingByTenant> rootNode,
  30             InstanceIdentifier<ForwardingByTenant> rootIdentifier) {
  31         ForwardingByTenant forwardingByTenant = rootNode.getDataAfter();
  32         updateForwarding(rootIdentifier, forwardingByTenant);
  33     }
  34
  35     @Override
  36     protected void onDelete(DataObjectModification<ForwardingByTenant> rootNode,
  37             InstanceIdentifier<ForwardingByTenant> rootIdentifier) {
  38         WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  39         wTx.delete(LogicalDatastoreType.OPERATIONAL, rootIdentifier);
  40         wTx.submit();
  41     }
  42
  43     @Override
  44     protected void onSubtreeModified(DataObjectModification<ForwardingByTenant> rootNode,
  45             InstanceIdentifier<ForwardingByTenant> rootIdentifier) {
  46         ForwardingByTenant forwardingByTenant = rootNode.getDataAfter();
  47         updateForwarding(rootIdentifier, forwardingByTenant);
  48     }
  49
  50     @VisibleForTesting
  51     void updateForwarding(InstanceIdentifier<ForwardingByTenant> rootIdentifier,
  52             ForwardingByTenant forwardingByTenant) {
  53         Preconditions.checkNotNull(rootIdentifier);
  54         Preconditions.checkNotNull(forwardingByTenant);
  55         // TODO add validation of forwarding
  56         WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  57         wTx.put(LogicalDatastoreType.OPERATIONAL, rootIdentifier, forwardingByTenant);
  58         wTx.submit();
  59     }
  60
  61 }