elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/evpn/listeners/EvpnElanInstanceListener.java

   1 /*
   2  * Copyright (c) 2017 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
   9 package org.opendaylight.netvirt.elan.evpn.listeners;
  10
  11 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  12
  13 import java.util.concurrent.ExecutionException;
  14 import javax.annotation.PostConstruct;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  20 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  22 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  23 import org.opendaylight.infrautils.utils.concurrent.LoggingFutures;
  24 import org.opendaylight.netvirt.elan.evpn.utils.EvpnMacVrfUtils;
  25 import org.opendaylight.netvirt.elan.evpn.utils.EvpnUtils;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInstances;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.EvpnAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33
  34
  35 @Singleton
  36 public class EvpnElanInstanceListener extends AsyncDataTreeChangeListenerBase<ElanInstance, EvpnElanInstanceListener> {
  37     private static final Logger LOG = LoggerFactory.getLogger(EvpnElanInstanceListener.class);
  38     private final DataBroker broker;
  39     private final ManagedNewTransactionRunner txRunner;
  40     private final EvpnUtils evpnUtils;
  41     private final EvpnMacVrfUtils evpnMacVrfUtils;
  42     private final IMdsalApiManager mdsalManager;
  43
  44
  45     @Inject
  46     public EvpnElanInstanceListener(final DataBroker dataBroker, final EvpnUtils evpnUtils,
  47                                     EvpnMacVrfUtils evpnMacVrfUtils, IMdsalApiManager mdsalApiManager) {
  48         super(ElanInstance.class, EvpnElanInstanceListener.class);
  49         this.broker = dataBroker;
  50         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  51         this.evpnUtils = evpnUtils;
  52         this.evpnMacVrfUtils = evpnMacVrfUtils;
  53         this.mdsalManager = mdsalApiManager;
  54     }
  55
  56     @Override
  57     @PostConstruct
  58     public void init() {
  59         registerListener(LogicalDatastoreType.CONFIGURATION, broker);
  60     }
  61
  62     @Override
  63     protected InstanceIdentifier<ElanInstance> getWildCardPath() {
  64         return InstanceIdentifier.builder(ElanInstances.class).child(ElanInstance.class).build();
  65     }
  66
  67     @Override
  68     protected void add(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance evpnAugmentation) {
  69     }
  70
  71     @Override
  72     protected void remove(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance evpnAugmentation) {
  73     }
  74
  75     @Override
  76     protected void update(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance original,
  77                           ElanInstance update) {
  78         String elanName = update.getElanInstanceName();
  79         LoggingFutures.addErrorLogging(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION, confTx -> {
  80             if (evpnUtils.isWithdrawEvpnRT2Routes(original, update)) {
  81                 evpnUtils.withdrawEvpnRT2Routes(original.augmentation(EvpnAugmentation.class), elanName);
  82                 evpnMacVrfUtils.updateEvpnDmacFlows(original, false);
  83                 evpnUtils.programEvpnL2vniDemuxTable(elanName,
  84                     (elan, interfaceName) -> evpnUtils.bindElanServiceToExternalTunnel(elanName, interfaceName),
  85                     (dpnId, flowEntity) -> mdsalManager.addFlow(confTx, flowEntity));
  86             } else if (evpnUtils.isAdvertiseEvpnRT2Routes(original, update)) {
  87                 evpnUtils.advertiseEvpnRT2Routes(update.augmentation(EvpnAugmentation.class), elanName);
  88                 evpnMacVrfUtils.updateEvpnDmacFlows(update, true);
  89                 evpnUtils.programEvpnL2vniDemuxTable(elanName,
  90                     (elan, interfaceName) -> evpnUtils.unbindElanServiceFromExternalTunnel(elanName, interfaceName),
  91                     (dpnId, flowEntity) -> {
  92                         try {
  93                             mdsalManager.removeFlow(confTx, dpnId, flowEntity.getFlowId(), flowEntity.getTableId());
  94                         } catch (ExecutionException | InterruptedException e) {
  95                             LOG.error("Error removing flow", e);
  96                         }
  97                     });
  98             }
  99         }), LOG, "Error handling EVPN ELAN instance update");
 100     }
 101
 102     @Override
 103     protected EvpnElanInstanceListener getDataTreeChangeListener() {
 104         return this;
 105     }
 106
 107 }