elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/recovery/impl/ElanInterfaceRecoveryHandler.java

   1 /*
   2  * Copyright (c) 2018 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.recovery.impl;
   9
  10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11
  12 import java.util.concurrent.ExecutionException;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  17 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  18 import org.opendaylight.genius.utils.clustering.EntityOwnershipUtils;
  19 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
  20 import org.opendaylight.netvirt.elan.internal.ElanServiceProvider;
  21 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  22 import org.opendaylight.serviceutils.srm.ServiceRecoveryInterface;
  23 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.srm.types.rev180626.NetvirtElanInterface;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 @Singleton
  31 public class ElanInterfaceRecoveryHandler implements ServiceRecoveryInterface {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(ElanInterfaceRecoveryHandler.class);
  34
  35     private final ManagedNewTransactionRunner txRunner;
  36     private final ElanServiceProvider elanServiceProvider;
  37     private final EntityOwnershipUtils entityOwnershipUtils;
  38
  39     @Inject
  40     public ElanInterfaceRecoveryHandler(DataBroker dataBroker,
  41                                         ElanServiceProvider elanServiceProvider,
  42                                         ServiceRecoveryRegistry serviceRecoveryRegistry,
  43                                         EntityOwnershipUtils entityOwnershipUtils) {
  44         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  45         this.elanServiceProvider = elanServiceProvider;
  46         this.entityOwnershipUtils = entityOwnershipUtils;
  47         serviceRecoveryRegistry.registerServiceRecoveryRegistry(buildServiceRegistryKey(), this);
  48     }
  49
  50     @Override
  51     public void recoverService(String entityId) {
  52         if (!entityOwnershipUtils.isEntityOwner(HwvtepSouthboundConstants.ELAN_ENTITY_TYPE,
  53                 HwvtepSouthboundConstants.ELAN_ENTITY_NAME)) {
  54             return;
  55         }
  56         LOG.info("recover elan interface {}", entityId);
  57         // Fetch the elan interface from elan interface config DS first.
  58         ElanInterface elanInterface = elanServiceProvider.getElanInterfaceByElanInterfaceName(entityId);
  59         if (elanInterface != null) {
  60             // Do a delete and recreate of the elan interface configuration.
  61             InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils
  62                     .getElanInterfaceConfigurationDataPathId(entityId);
  63             try {
  64                 LOG.trace("deleting elan interface {}", entityId);
  65                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
  66                     tx -> tx.delete(elanInterfaceId)).get();
  67                 LOG.trace("recreating elan interface {}, {}", entityId, elanInterface);
  68                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
  69                     tx -> tx.put(elanInterfaceId, elanInterface)).get();
  70             } catch (InterruptedException | ExecutionException e) {
  71                 LOG.error("Service recovery failed for elan interface {}", entityId, e);
  72             }
  73         }
  74     }
  75
  76     private static String buildServiceRegistryKey() {
  77         return NetvirtElanInterface.class.toString();
  78     }
  79 }