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