elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/listeners/ElanMacEntryListener.java

   1 /*
   2  * Copyright (c) 2020 Ericsson India Global Services Pvt Ltd. and others.  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.netvirt.elan.l2gw.listeners;
   9
  10 import com.google.common.collect.Lists;
  11 import java.util.Collections;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.opendaylight.genius.utils.batching.ResourceBatchingManager;
  15 import org.opendaylight.infrautils.utils.concurrent.Executors;
  16 import org.opendaylight.mdsal.binding.api.DataBroker;
  17 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  18 import org.opendaylight.netvirt.elan.cache.ElanInstanceCache;
  19 import org.opendaylight.netvirt.elan.l2gw.utils.ElanL2GatewayUtils;
  20 import org.opendaylight.netvirt.elan.utils.ElanClusterUtils;
  21 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  22 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredAsyncDataTreeChangeListener;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanForwardingTables;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.forwarding.tables.MacTable;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.opendaylight.yangtools.yang.common.Uint64;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 @Singleton
  33 public class ElanMacEntryListener extends AbstractClusteredAsyncDataTreeChangeListener<MacEntry> {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(ElanMacEntryListener.class);
  36
  37     private final DataBroker dataBroker;
  38     private ElanL2GatewayUtils elanL2GatewayUtils;
  39     private final ElanClusterUtils elanClusterUtils;
  40     private final ElanInstanceCache elanInstanceCache;
  41
  42     @Inject
  43     public ElanMacEntryListener(final DataBroker dataBroker,
  44                                 ElanClusterUtils elanClusterUtils,
  45                                 ElanInstanceCache elanInstanceCache,
  46                                 ElanL2GatewayUtils elanL2GatewayUtils) {
  47         super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(ElanForwardingTables.class)
  48                 .child(MacTable.class).child(MacEntry.class),
  49             Executors.newListeningSingleThreadExecutor("L2GatewayConnectionListener", LOG));
  50         this.dataBroker = dataBroker;
  51         this.elanClusterUtils = elanClusterUtils;
  52         this.elanInstanceCache = elanInstanceCache;
  53         this.elanL2GatewayUtils = elanL2GatewayUtils;
  54         init();
  55     }
  56
  57     public void init() {
  58         LOG.info("ElanMacEntryListener L2Gw init()");
  59         ResourceBatchingManager.getInstance().registerDefaultBatchHandlers(this.dataBroker);
  60     }
  61
  62     @Override
  63     public void remove(final InstanceIdentifier<MacEntry> identifier, final MacEntry del) {
  64         LOG.trace("ElanMacEntryListener remove : {}", del);
  65         elanClusterUtils.runOnlyInOwnerNode(del.getMacAddress().getValue(),
  66             "Deleting dpn macs from remote ucast mac tables", () -> {
  67                 String elanName = identifier.firstKeyOf(MacTable.class).getElanInstanceName();
  68                 ElanInstance elanInstance = elanInstanceCache.get(elanName).orElse(null);
  69                 elanL2GatewayUtils.removeMacsFromElanExternalDevices(elanInstance,
  70                         Lists.newArrayList(del.getMacAddress()));
  71                 return Collections.EMPTY_LIST;
  72             });
  73     }
  74
  75     @Override
  76     public void update(InstanceIdentifier<MacEntry> identifier, MacEntry original, MacEntry update) {
  77     }
  78
  79     //Using mac entry clustered listener instead of elan interface listener to avoid race conditions
  80     //always use clustered listener to programme l2gw device
  81     @Override
  82     public void add(InstanceIdentifier<MacEntry> identifier, MacEntry add) {
  83         LOG.trace("ElanMacEntryListener add : {}", add);
  84         elanClusterUtils.runOnlyInOwnerNode("Adding dpn macs to remote ucast mac tables", () -> {
  85             String elanName = identifier.firstKeyOf(MacTable.class).getElanInstanceName();
  86             ElanInstance elanInstance = elanInstanceCache.get(elanName).orElse(null);
  87             if (ElanUtils.isVxlanNetworkOrVxlanSegment(elanInstance)) {
  88                 Uint64 dpId = elanL2GatewayUtils.getDpidFromInterface(add.getInterface());
  89                 elanL2GatewayUtils.scheduleAddDpnMacInExtDevices(elanName, dpId,
  90                         Lists.newArrayList(add.getMacAddress()));
  91             }
  92         });
  93     }
  94 }