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
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  14 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  15 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMappingSystem;
  16 import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
  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 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
  26
  27 /**
  28  * DataListener for all AuthenticationKey modification events.
  29  *
  30  * @author Lorand Jakab
  31  *
  32  */
  33 public class AuthenticationKeyDataListener extends AbstractDataListener<AuthenticationKey> {
  34     private static final Logger LOG = LoggerFactory.getLogger(AuthenticationKeyDataListener.class);
  35     private IMappingSystem mapSystem;
  36
  37     public AuthenticationKeyDataListener(DataBroker broker, IMappingSystem mapSystem) {
  38         setBroker(broker);
  39         setMappingSystem(mapSystem);
  40         setPath(InstanceIdentifier.create(MappingDatabase.class).child(VirtualNetworkIdentifier.class)
  41                 .child(AuthenticationKey.class));
  42         LOG.trace("Registering AuthenticationKey listener.");
  43         registerDataChangeListener();
  44     }
  45
  46     @Override
  47     public void onDataTreeChanged(Collection<DataTreeModification<AuthenticationKey>> changes) {
  48         for (DataTreeModification<AuthenticationKey> change : changes) {
  49             final DataObjectModification<AuthenticationKey> mod = change.getRootNode();
  50
  51             if (ModificationType.DELETE == mod.getModificationType()) {
  52                 final AuthenticationKey authKey = mod.getDataBefore();
  53
  54                 LOG.trace("Received deleted data");
  55                 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
  56                 LOG.trace("Value: {}", authKey);
  57
  58                 final AuthenticationKey convertedAuthKey = convertToBinaryIfNecessary(authKey);
  59
  60                 mapSystem.removeAuthenticationKey(convertedAuthKey.getEid());
  61             } else if (ModificationType.WRITE == mod.getModificationType() || ModificationType.SUBTREE_MODIFIED == mod
  62                     .getModificationType()) {
  63                 if (ModificationType.WRITE == mod.getModificationType()) {
  64                     LOG.trace("Received created data");
  65                 } else {
  66                     LOG.trace("Received updated data");
  67                 }
  68                 // Process newly created or updated authentication keys
  69                 final AuthenticationKey authKey = mod.getDataAfter();
  70
  71                 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
  72                 LOG.trace("Value: {}", authKey);
  73
  74                 final AuthenticationKey convertedAuthKey = convertToBinaryIfNecessary(authKey);
  75
  76                 mapSystem.addAuthenticationKey(convertedAuthKey.getEid(), convertedAuthKey.getMappingAuthkey());
  77             } else {
  78                 LOG.warn("Ignoring unhandled modification type {}", mod.getModificationType());
  79             }
  80         }
  81     }
  82
  83     private static AuthenticationKey convertToBinaryIfNecessary(AuthenticationKey authKey) {
  84         Eid originalEid = authKey.getEid();
  85         if (LispAddressUtil.addressNeedsConversionToBinary(originalEid.getAddress())) {
  86             AuthenticationKeyBuilder akb = new AuthenticationKeyBuilder(authKey);
  87             akb.setEid(LispAddressUtil.convertToBinary(originalEid));
  88             return akb.build();
  89         }
  90         return authKey;
  91     }
  92
  93     void setMappingSystem(IMappingSystem msmr) {
  94         this.mapSystem = msmr;
  95     }
  96 }