mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/mdsal/AuthenticationKeyDataListener.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.Collection;
  11 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMappingSystem;
  12 import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
  13 import org.opendaylight.mdsal.binding.api.DataBroker;
  14 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  15 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  16 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingDatabase;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.AuthenticationKey;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.AuthenticationKeyBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.mapping.database.VirtualNetworkIdentifier;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 /**
  27  * DataListener for all AuthenticationKey modification events.
  28  *
  29  * @author Lorand Jakab
  30  *
  31  */
  32 public class AuthenticationKeyDataListener extends AbstractDataListener<AuthenticationKey> {
  33     private static final Logger LOG = LoggerFactory.getLogger(AuthenticationKeyDataListener.class);
  34     private IMappingSystem mapSystem;
  35
  36     public AuthenticationKeyDataListener(DataBroker broker, IMappingSystem mapSystem) {
  37         setBroker(broker);
  38         setMappingSystem(mapSystem);
  39         setPath(InstanceIdentifier.create(MappingDatabase.class).child(VirtualNetworkIdentifier.class)
  40                 .child(AuthenticationKey.class));
  41         LOG.trace("Registering AuthenticationKey listener.");
  42         registerDataChangeListener();
  43     }
  44
  45     @Override
  46     public void onDataTreeChanged(Collection<DataTreeModification<AuthenticationKey>> changes) {
  47         for (DataTreeModification<AuthenticationKey> change : changes) {
  48             final DataObjectModification<AuthenticationKey> mod = change.getRootNode();
  49
  50             if (ModificationType.DELETE == mod.getModificationType()) {
  51                 final AuthenticationKey authKey = mod.getDataBefore();
  52
  53                 LOG.trace("Received deleted data");
  54                 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
  55                 LOG.trace("Value: {}", authKey);
  56
  57                 final AuthenticationKey convertedAuthKey = convertToBinaryIfNecessary(authKey);
  58
  59                 mapSystem.removeAuthenticationKey(convertedAuthKey.getEid());
  60             } else if (ModificationType.WRITE == mod.getModificationType() || ModificationType.SUBTREE_MODIFIED == mod
  61                     .getModificationType()) {
  62                 if (ModificationType.WRITE == mod.getModificationType()) {
  63                     LOG.trace("Received created data");
  64                 } else {
  65                     LOG.trace("Received updated data");
  66                 }
  67                 // Process newly created or updated authentication keys
  68                 final AuthenticationKey authKey = mod.getDataAfter();
  69
  70                 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
  71                 LOG.trace("Value: {}", authKey);
  72
  73                 final AuthenticationKey convertedAuthKey = convertToBinaryIfNecessary(authKey);
  74
  75                 mapSystem.addAuthenticationKey(convertedAuthKey.getEid(), convertedAuthKey.getMappingAuthkey());
  76             } else {
  77                 LOG.warn("Ignoring unhandled modification type {}", mod.getModificationType());
  78             }
  79         }
  80     }
  81
  82     private static AuthenticationKey convertToBinaryIfNecessary(AuthenticationKey authKey) {
  83         Eid originalEid = authKey.getEid();
  84         if (LispAddressUtil.addressNeedsConversionToBinary(originalEid.getAddress())) {
  85             AuthenticationKeyBuilder akb = new AuthenticationKeyBuilder(authKey);
  86             akb.setEid(LispAddressUtil.convertToBinary(originalEid));
  87             return akb.build();
  88         }
  89         return authKey;
  90     }
  91
  92     void setMappingSystem(IMappingSystem msmr) {
  93         this.mapSystem = msmr;
  94     }
  95 }