mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/mdsal/MappingDataListener.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc.  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.lispflowmapping.implementation.mdsal;
   9
  10 import java.util.Map;
  11 import java.util.Set;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  15 import org.opendaylight.lispflowmapping.implementation.LispMappingService;
  16 import org.opendaylight.lispflowmapping.implementation.util.MapServerMapResolverUtil;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.control.plane.rev150314.MapRegister;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.MappingDatabase;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.db.instance.Mapping;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.mapping.database.InstanceId;
  21 import org.opendaylight.yangtools.yang.binding.DataObject;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 /**
  27  * DataListener for all Mapping modification events.
  28  *
  29  * @author Lorand Jakab
  30  *
  31  */
  32 public class MappingDataListener extends AbstractDataListener {
  33     private static final Logger LOG = LoggerFactory.getLogger(MappingDataListener.class);
  34     private LispMappingService msmr;
  35
  36     public MappingDataListener(DataBroker broker, LispMappingService msmr) {
  37         setBroker(broker);
  38         setMsmr(msmr);
  39         setPath(InstanceIdentifier.create(MappingDatabase.class).child(InstanceId.class)
  40                 .child(Mapping.class));
  41         LOG.trace("Registering Mapping listener.");
  42         registerDataChangeListener();
  43     }
  44
  45     @Override
  46     public void onDataChanged(
  47             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  48
  49      // Process newly created mappings
  50         Map<InstanceIdentifier<?>, DataObject> createdData = change.getCreatedData();
  51         for (Map.Entry<InstanceIdentifier<?>, DataObject> entry : createdData.entrySet()) {
  52             if (entry.getValue() instanceof Mapping) {
  53                 Mapping mapping = (Mapping)entry.getValue();
  54
  55                 LOG.trace("Received created data");
  56                 LOG.trace("Key: {}", entry.getKey());
  57                 LOG.trace("Value: {}", mapping);
  58
  59                 MapRegister register = MapServerMapResolverUtil.getMapRegister(mapping);
  60                 msmr.handleMapRegister(register, false);
  61             }
  62         }
  63
  64         // Process updated mappings
  65         Map<InstanceIdentifier<?>, DataObject> updatedData = change.getUpdatedData();
  66         for (Map.Entry<InstanceIdentifier<?>, DataObject> entry : updatedData.entrySet()) {
  67             if (entry.getValue() instanceof Mapping) {
  68                 Mapping mapping = (Mapping)entry.getValue();
  69
  70                 LOG.trace("Received changed data");
  71                 LOG.trace("Key: {}", entry.getKey());
  72                 LOG.trace("Value: {}", entry.getValue());
  73
  74                 MapRegister register = MapServerMapResolverUtil.getMapRegister(mapping);
  75                 msmr.handleMapRegister(register, false);
  76             }
  77         }
  78
  79         // Process deleted mappings
  80         Set<InstanceIdentifier<?>> removedData = change.getRemovedPaths();
  81         for (InstanceIdentifier<?> entry : removedData) {
  82             DataObject dataObject = change.getOriginalData().get(entry);
  83             if (dataObject instanceof Mapping) {
  84                 Mapping mapping = (Mapping)dataObject;
  85
  86                 LOG.trace("Received deleted data");
  87                 LOG.trace("Key: {}", entry);
  88                 LOG.trace("Value: {}", dataObject);
  89
  90                 msmr.removeMapping(mapping.getLispAddressContainer(), mapping.getMaskLength());
  91             }
  92         }
  93     }
  94
  95     void setMsmr(LispMappingService msmr) {
  96         this.msmr = msmr;
  97     }
  98 }