tapi/src/main/java/org/opendaylight/transportpce/tapi/topology/TapiPortMappingListener.java

   1 /*
   2  * Copyright © 2021 Nokia.  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 package org.opendaylight.transportpce.tapi.topology;
   9
  10 import java.util.Collection;
  11 import java.util.Map;
  12 import org.eclipse.jdt.annotation.NonNull;
  13 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
  14 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  15 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.Mapping;
  16 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.MappingKey;
  17 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.Nodes;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public class TapiPortMappingListener implements DataTreeChangeListener<Nodes> {
  22
  23     private static final Logger LOG = LoggerFactory.getLogger(TapiPortMappingListener.class);
  24
  25     private final TapiNetworkModelService tapiNetworkModelService;
  26
  27     public TapiPortMappingListener(TapiNetworkModelService tapiNetworkModelService) {
  28         this.tapiNetworkModelService = tapiNetworkModelService;
  29     }
  30
  31     @Override
  32     public void onDataTreeChanged(@NonNull Collection<DataTreeModification<Nodes>> changes) {
  33         for (DataTreeModification<Nodes> change : changes) {
  34             LOG.debug("TAPI module: Change in Node = {}", change.getRootNode());
  35             // Data before needs to be not null
  36             if (change.getRootNode().getDataAfter() != null && change.getRootNode().getDataBefore() != null) {
  37                 Nodes nodesAft = change.getRootNode().getDataAfter();
  38                 Nodes nodesBef = change.getRootNode().getDataBefore();
  39                 // TODO -> need to filter out the ones that are not after creation.
  40                 //  (Mapping before = null & Mapping after != null) is the rule for a first time connected device
  41                 String nodeId = nodesAft.getNodeId();
  42                 Map<MappingKey, Mapping> mappingAft = nodesAft.getMapping();
  43                 Map<MappingKey, Mapping> mappingBef = nodesBef.getMapping();
  44                 LOG.info("Change in node {} with OR version = {}", nodeId,
  45                     nodesAft.getNodeInfo().getOpenroadmVersion().getName());
  46                 if (mappingAft == null) {
  47                     LOG.warn("Mapping already existed in the datastore, which means that node {} already existed "
  48                         + "in TAPI topology. The action to take will be different", nodeId);
  49                     continue;
  50                 }
  51                 if (mappingBef == null) {
  52                     LOG.info("New mapping for node {} = {}", nodeId, mappingAft);
  53                     LOG.info("As the mapping is now created for the first time, "
  54                         + "we can proceed with the creation of the node {} in the TAPI topology", nodeId);
  55                     this.tapiNetworkModelService.createTapiNode(nodeId,
  56                         nodesAft.getNodeInfo().getOpenroadmVersion().getIntValue(), nodesAft);
  57                 } else {
  58                     for (Map.Entry<MappingKey, Mapping> entry : mappingAft.entrySet()) {
  59                         Mapping oldMapping = mappingBef.get(entry.getKey());
  60                         Mapping newMapping = mappingAft.get(entry.getKey());
  61                         if (!oldMapping.getPortAdminState().equals(newMapping.getPortAdminState())
  62                                 || !oldMapping.getPortOperState().equals(newMapping.getPortOperState())) {
  63                             this.tapiNetworkModelService.updateTapiTopology(nodeId, entry.getValue());
  64                         }
  65                     }
  66                 }
  67             }
  68         }
  69     }
  70 }