renderers/ofoverlay/src/main/java/org/opendaylight/groupbasedpolicy/renderer/ofoverlay/endpoint/EndpointManagerListener.java

   1 /*
   2  * Copyright (c) 2014 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.renderer.ofoverlay.endpoint;
  10
  11 import static com.google.common.base.Preconditions.checkNotNull;
  12
  13 import java.util.ArrayList;
  14 import java.util.Collection;
  15 import java.util.List;
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  18 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  19 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointL3;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25
  26 public class EndpointManagerListener implements AutoCloseable {
  27
  28     private final List<ListenerRegistration<?>> listenerRegistrations = new ArrayList<>();
  29     private final EndpointManager endpointManager;
  30
  31     public EndpointManagerListener(DataBroker dataProvider, EndpointManager endpointManager) {
  32         this.endpointManager = checkNotNull(endpointManager);
  33         checkNotNull(dataProvider);
  34
  35         listenerRegistrations.add(dataProvider.registerDataTreeChangeListener(new DataTreeIdentifier<>(
  36             LogicalDatastoreType.OPERATIONAL, IidFactory.endpointsIidWildcard().child(Endpoint.class)),
  37             changes -> onEndpointChanged(changes)));
  38
  39         listenerRegistrations.add(dataProvider.registerDataTreeChangeListener(new DataTreeIdentifier<>(
  40             LogicalDatastoreType.OPERATIONAL, IidFactory.endpointsIidWildcard().child(EndpointL3.class)),
  41             changes -> onEndpointL3Changed(changes)));
  42     }
  43
  44     private void onEndpointChanged(Collection<DataTreeModification<Endpoint>> changes) {
  45         for (DataTreeModification<Endpoint> change: changes) {
  46             DataObjectModification<Endpoint> rootNode = change.getRootNode();
  47             switch (rootNode.getModificationType()) {
  48                 case SUBTREE_MODIFIED:
  49                 case WRITE:
  50                     endpointManager.processEndpoint(rootNode.getDataBefore(), rootNode.getDataAfter());
  51                     break;
  52                 case DELETE:
  53                     endpointManager.processEndpoint(rootNode.getDataBefore(), null);
  54                     break;
  55                 default:
  56                     break;
  57             }
  58         }
  59     }
  60
  61     private void onEndpointL3Changed(Collection<DataTreeModification<EndpointL3>> changes) {
  62         for (DataTreeModification<EndpointL3> change: changes) {
  63             DataObjectModification<EndpointL3> rootNode = change.getRootNode();
  64             switch (rootNode.getModificationType()) {
  65                 case SUBTREE_MODIFIED:
  66                 case WRITE:
  67                     endpointManager.processL3Endpoint(rootNode.getDataBefore(), rootNode.getDataAfter());
  68                     break;
  69                 case DELETE:
  70                     endpointManager.processL3Endpoint(rootNode.getDataBefore(), null);
  71                     break;
  72                 default:
  73                     break;
  74             }
  75         }
  76     }
  77
  78     @Override
  79     public void close() {
  80         for (ListenerRegistration<?> reg: listenerRegistrations) {
  81             reg.close();
  82         }
  83     }
  84 }