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.binding.api.NotificationPublishService;
  15 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  16 import org.opendaylight.lispflowmapping.implementation.util.MSNotificationInputUtil;
  17 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMappingSystem;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingChange;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingDatabase;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.Mapping;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.mapping.database.VirtualNetworkIdentifier;
  22 import org.opendaylight.yangtools.yang.binding.DataObject;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 /**
  28  * DataListener for all Mapping modification events.
  29  *
  30  * @author Lorand Jakab
  31  * @author Florin Coras
  32  *
  33  */
  34 public class MappingDataListener extends AbstractDataListener {
  35     private static final Logger LOG = LoggerFactory.getLogger(MappingDataListener.class);
  36     private IMappingSystem mapSystem;
  37     private NotificationPublishService notificationPublishService;
  38
  39     public MappingDataListener(DataBroker broker, IMappingSystem msmr, NotificationPublishService nps) {
  40         setBroker(broker);
  41         setMappingSystem(msmr);
  42         setNotificationProviderService(nps);
  43         setPath(InstanceIdentifier.create(MappingDatabase.class).child(VirtualNetworkIdentifier.class)
  44                 .child(Mapping.class));
  45         LOG.trace("Registering Mapping listener.");
  46         registerDataChangeListener();
  47     }
  48
  49     public void setNotificationProviderService(NotificationPublishService nps) {
  50         this.notificationPublishService = nps;
  51     }
  52
  53     @Override
  54     public void onDataChanged(
  55             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  56
  57      // Process newly created mappings
  58         Map<InstanceIdentifier<?>, DataObject> createdData = change.getCreatedData();
  59         for (Map.Entry<InstanceIdentifier<?>, DataObject> entry : createdData.entrySet()) {
  60             if (entry.getValue() instanceof Mapping) {
  61                 Mapping mapping = (Mapping)entry.getValue();
  62
  63                 LOG.trace("Received created data");
  64                 LOG.trace("Key: {}", entry.getKey());
  65                 LOG.trace("Value: {}", mapping);
  66
  67                 mapSystem.addMapping(mapping.getOrigin(), mapping.getMappingRecord().getEid(),
  68                         mapping.getMappingRecord());
  69             }
  70         }
  71
  72         // Process updated mappings
  73         Map<InstanceIdentifier<?>, DataObject> updatedData = change.getUpdatedData();
  74         for (Map.Entry<InstanceIdentifier<?>, DataObject> entry : updatedData.entrySet()) {
  75             if (entry.getValue() instanceof Mapping) {
  76                 Mapping mapping = (Mapping)entry.getValue();
  77
  78                 LOG.trace("Received changed data");
  79                 LOG.trace("Key: {}", entry.getKey());
  80                 LOG.trace("Value: {}", entry.getValue());
  81
  82                 mapSystem.addMapping(mapping.getOrigin(), mapping.getMappingRecord().getEid(),
  83                         mapping.getMappingRecord());
  84                 try {
  85                     notificationPublishService.putNotification(MSNotificationInputUtil.toMappingChanged(mapping, MappingChange.Updated));
  86                 } catch (InterruptedException e) {
  87                     LOG.warn("Notification publication interrupted!");
  88                 }
  89             }
  90         }
  91
  92         // Process deleted mappings
  93         Set<InstanceIdentifier<?>> removedData = change.getRemovedPaths();
  94         for (InstanceIdentifier<?> entry : removedData) {
  95             DataObject dataObject = change.getOriginalData().get(entry);
  96             if (dataObject instanceof Mapping) {
  97                 Mapping mapping = (Mapping)dataObject;
  98
  99                 LOG.trace("Received deleted data");
 100                 LOG.trace("Key: {}", entry);
 101                 LOG.trace("Value: {}", dataObject);
 102
 103                 mapSystem.removeMapping(mapping.getOrigin(), mapping.getMappingRecord().getEid());
 104                 try {
 105                     notificationPublishService.putNotification(MSNotificationInputUtil.toMappingChanged(mapping, MappingChange.Removed));
 106                 } catch (InterruptedException e) {
 107                     LOG.warn("Notification publication interrupted!");
 108                 }
 109             }
 110         }
 111     }
 112
 113     void setMappingSystem(IMappingSystem msmr) {
 114         this.mapSystem = msmr;
 115     }
 116 }