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.DataTreeIdentifier;
  14 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.Forwarding;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.ForwardingByTenant;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20
  21 import com.google.common.annotations.VisibleForTesting;
  22 import com.google.common.base.Preconditions;
  23
  24 public class ForwardingResolver extends DataTreeChangeHandler<ForwardingByTenant> {
  25
  26     public ForwardingResolver(DataBroker dataProvider) {
  27         super(dataProvider);
  28         registerDataTreeChangeListener(new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
  29                 InstanceIdentifier.builder(Forwarding.class).child(ForwardingByTenant.class).build()));
  30     }
  31
  32     @Override
  33     protected void onWrite(DataObjectModification<ForwardingByTenant> rootNode,
  34             InstanceIdentifier<ForwardingByTenant> rootIdentifier) {
  35         ForwardingByTenant forwardingByTenant = rootNode.getDataAfter();
  36         updateForwarding(rootIdentifier, forwardingByTenant);
  37     }
  38
  39     @Override
  40     protected void onDelete(DataObjectModification<ForwardingByTenant> rootNode,
  41             InstanceIdentifier<ForwardingByTenant> rootIdentifier) {
  42         WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  43         wTx.delete(LogicalDatastoreType.OPERATIONAL, rootIdentifier);
  44         wTx.submit();
  45     }
  46
  47     @Override
  48     protected void onSubtreeModified(DataObjectModification<ForwardingByTenant> rootNode,
  49             InstanceIdentifier<ForwardingByTenant> rootIdentifier) {
  50         ForwardingByTenant forwardingByTenant = rootNode.getDataAfter();
  51         updateForwarding(rootIdentifier, forwardingByTenant);
  52     }
  53
  54     @VisibleForTesting
  55     void updateForwarding(InstanceIdentifier<ForwardingByTenant> rootIdentifier,
  56             ForwardingByTenant forwardingByTenant) {
  57         Preconditions.checkNotNull(rootIdentifier);
  58         Preconditions.checkNotNull(forwardingByTenant);
  59         // TODO add validation of forwarding
  60         WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
  61         wTx.put(LogicalDatastoreType.OPERATIONAL, rootIdentifier, forwardingByTenant);
  62         wTx.submit();
  63     }
  64
  65 }