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.config.ConfigIni;
  17 import org.opendaylight.lispflowmapping.implementation.util.MapServerMapResolverUtil;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.control.plane.rev150314.MapRegister;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.MappingDatabase;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.MappingOrigin;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.db.instance.Mapping;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mapping.database.rev150314.mapping.database.InstanceId;
  23 import org.opendaylight.yangtools.yang.binding.DataObject;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * DataListener for all Mapping modification events.
  30  *
  31  * @author Lorand Jakab
  32  *
  33  */
  34 public class MappingDataListener extends AbstractDataListener {
  35     private static final Logger LOG = LoggerFactory.getLogger(MappingDataListener.class);
  36     private LispMappingService msmr;
  37     private static final ConfigIni configIni = new ConfigIni();
  38     private volatile boolean smr = configIni.smrIsSet();
  39
  40     public MappingDataListener(DataBroker broker, LispMappingService msmr) {
  41         setBroker(broker);
  42         setMsmr(msmr);
  43         setPath(InstanceIdentifier.create(MappingDatabase.class).child(InstanceId.class)
  44                 .child(Mapping.class));
  45         LOG.trace("Registering Mapping listener.");
  46         registerDataChangeListener();
  47     }
  48
  49     @Override
  50     public void onDataChanged(
  51             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  52
  53      // Process newly created mappings
  54         Map<InstanceIdentifier<?>, DataObject> createdData = change.getCreatedData();
  55         for (Map.Entry<InstanceIdentifier<?>, DataObject> entry : createdData.entrySet()) {
  56             if (entry.getValue() instanceof Mapping) {
  57                 Mapping mapping = (Mapping)entry.getValue();
  58
  59                 LOG.trace("Received created data");
  60                 LOG.trace("Key: {}", entry.getKey());
  61                 LOG.trace("Value: {}", mapping);
  62
  63                 if (mapping.getOrigin() != MappingOrigin.Southbound) {
  64                     MapRegister register = MapServerMapResolverUtil.getMapRegister(mapping);
  65                     msmr.handleMapRegister(register, smr);
  66                 } else {
  67                     LOG.trace("Mapping is coming from the southbound plugin, already handled");
  68                 }
  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                 if (mapping.getOrigin() != MappingOrigin.Southbound) {
  83                     MapRegister register = MapServerMapResolverUtil.getMapRegister(mapping);
  84                     msmr.handleMapRegister(register, smr);
  85                 } else {
  86                     LOG.trace("Mapping is coming from the southbound plugin, already handled");
  87                 }
  88             }
  89         }
  90
  91         // Process deleted mappings
  92         Set<InstanceIdentifier<?>> removedData = change.getRemovedPaths();
  93         for (InstanceIdentifier<?> entry : removedData) {
  94             DataObject dataObject = change.getOriginalData().get(entry);
  95             if (dataObject instanceof Mapping) {
  96                 Mapping mapping = (Mapping)dataObject;
  97
  98                 LOG.trace("Received deleted data");
  99                 LOG.trace("Key: {}", entry);
 100                 LOG.trace("Value: {}", dataObject);
 101
 102                 msmr.removeMapping(mapping.getLispAddressContainer(), mapping.getMaskLength());
 103             }
 104         }
 105     }
 106
 107     void setMsmr(LispMappingService msmr) {
 108         this.msmr = msmr;
 109     }
 110 }