mappingservice/southbound/src/main/java/org/opendaylight/lispflowmapping/southbound/lisp/AuthenticationKeyDataListener.java

   1 /*
   2  * Copyright (c) 2016 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.southbound.lisp;
   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.DataObjectModification.ModificationType;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
  16 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  17 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
  20 import org.opendaylight.lispflowmapping.mapcache.SimpleMapCache;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingDatabase;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.AuthenticationKey;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.AuthenticationKeyBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.mapping.database.VirtualNetworkIdentifier;
  26 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * DataListener for all AuthenticationKey modification events.
  33  *
  34  */
  35 public class AuthenticationKeyDataListener implements DataTreeChangeListener<AuthenticationKey> {
  36     private static final Logger LOG = LoggerFactory.getLogger(AuthenticationKeyDataListener.class);
  37
  38     private final SimpleMapCache smc;
  39     private final DataBroker broker;
  40     private final InstanceIdentifier<AuthenticationKey> path;
  41     private ListenerRegistration<DataTreeChangeListener<AuthenticationKey>> registration;
  42     private boolean authKeyRefreshing = false;
  43     private long authKeyRefreshingDate;
  44
  45
  46     public AuthenticationKeyDataListener(final DataBroker broker, final SimpleMapCache smc) {
  47         this.broker = broker;
  48         this.smc = smc;
  49         this.path = InstanceIdentifier.create(MappingDatabase.class).child(VirtualNetworkIdentifier.class)
  50                 .child(AuthenticationKey.class);
  51         LOG.trace("Registering AuthenticationKey listener.");
  52         final DataTreeIdentifier<AuthenticationKey> dataTreeIdentifier = new DataTreeIdentifier<>
  53                 (LogicalDatastoreType.CONFIGURATION, path);
  54         registration = broker.registerDataTreeChangeListener(dataTreeIdentifier, this);
  55     }
  56
  57     public void closeDataChangeListener() {
  58         registration.close();
  59     }
  60
  61     public boolean isAuthKeyRefreshing() {
  62         return authKeyRefreshing;
  63     }
  64
  65     public void setAuthKeyRefreshing(boolean authKeyRefreshing) {
  66         this.authKeyRefreshing = authKeyRefreshing;
  67     }
  68
  69     public long getAuthKeyRefreshingDate() {
  70         return authKeyRefreshingDate;
  71     }
  72
  73     @Override
  74     public void onDataTreeChanged(Collection<DataTreeModification<AuthenticationKey>> changes) {
  75         authKeyRefreshing = true;
  76         authKeyRefreshingDate = System.currentTimeMillis();
  77         for (DataTreeModification<AuthenticationKey> change : changes) {
  78             final DataObjectModification<AuthenticationKey> mod = change.getRootNode();
  79
  80             if (ModificationType.DELETE == mod.getModificationType()) {
  81                 final AuthenticationKey authKey = mod.getDataBefore();
  82
  83                 LOG.trace("Received deleted data");
  84                 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
  85                 LOG.trace("Value: {}", authKey);
  86
  87                 final AuthenticationKey convertedAuthKey = convertToBinaryIfNecessary(authKey);
  88
  89                 smc.removeAuthenticationKey(convertedAuthKey.getEid());
  90             } else if (ModificationType.WRITE == mod.getModificationType() || ModificationType.SUBTREE_MODIFIED == mod
  91                     .getModificationType()) {
  92                 if (ModificationType.WRITE == mod.getModificationType()) {
  93                     LOG.trace("Received created data");
  94                 } else {
  95                     LOG.trace("Received updated data");
  96                 }
  97                 // Process newly created or updated authentication keys
  98                 final AuthenticationKey authKey = mod.getDataAfter();
  99
 100                 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
 101                 LOG.trace("Value: {}", authKey);
 102
 103                 final AuthenticationKey convertedAuthKey = convertToBinaryIfNecessary(authKey);
 104
 105                 smc.addAuthenticationKey(convertedAuthKey.getEid(), convertedAuthKey.getMappingAuthkey());
 106             } else {
 107                 LOG.warn("Ignoring unhandled modification type {}", mod.getModificationType());
 108             }
 109         }
 110     }
 111
 112     private static AuthenticationKey convertToBinaryIfNecessary(AuthenticationKey authKey) {
 113         Eid originalEid = authKey.getEid();
 114         if (LispAddressUtil.addressNeedsConversionToBinary(originalEid.getAddress())) {
 115             AuthenticationKeyBuilder akb = new AuthenticationKeyBuilder(authKey);
 116             akb.setEid(LispAddressUtil.convertToBinary(originalEid));
 117             return akb.build();
 118         }
 119         return authKey;
 120     }
 121
 122 }