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 java.util.concurrent.ExecutionException;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  16 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  17 import org.opendaylight.genius.srm.ServiceRecoveryInterface;
  18 import org.opendaylight.genius.srm.ServiceRecoveryRegistry;
  19 import org.opendaylight.genius.utils.clustering.EntityOwnershipUtils;
  20 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
  21 import org.opendaylight.netvirt.elan.internal.ElanServiceProvider;
  22 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.srm.types.rev170711.NetvirtElanInterface;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 @Singleton
  30 public class ElanInterfaceRecoveryHandler implements ServiceRecoveryInterface {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(ElanInterfaceRecoveryHandler.class);
  33
  34     private final ManagedNewTransactionRunner txRunner;
  35     private final ElanServiceProvider elanServiceProvider;
  36     private final EntityOwnershipUtils entityOwnershipUtils;
  37
  38     @Inject
  39     public ElanInterfaceRecoveryHandler(DataBroker dataBroker,
  40                                         ElanServiceProvider elanServiceProvider,
  41                                         ServiceRecoveryRegistry serviceRecoveryRegistry,
  42                                         EntityOwnershipUtils entityOwnershipUtils) {
  43         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  44         this.elanServiceProvider = elanServiceProvider;
  45         this.entityOwnershipUtils = entityOwnershipUtils;
  46         serviceRecoveryRegistry.registerServiceRecoveryRegistry(buildServiceRegistryKey(), this);
  47     }
  48
  49     @Override
  50     public void recoverService(String entityId) {
  51         if (!entityOwnershipUtils.isEntityOwner(HwvtepSouthboundConstants.ELAN_ENTITY_TYPE,
  52                 HwvtepSouthboundConstants.ELAN_ENTITY_NAME)) {
  53             return;
  54         }
  55         LOG.info("recover elan interface {}", entityId);
  56         // Fetch the elan interface from elan interface config DS first.
  57         ElanInterface elanInterface = elanServiceProvider.getElanInterfaceByElanInterfaceName(entityId);
  58         if (elanInterface != null) {
  59             // Do a delete and recreate of the elan interface configuration.
  60             InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils
  61                     .getElanInterfaceConfigurationDataPathId(entityId);
  62             try {
  63                 LOG.trace("deleting elan interface {}", entityId);
  64                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(
  65                     tx -> tx.delete(LogicalDatastoreType.CONFIGURATION, elanInterfaceId)).get();
  66                 LOG.trace("recreating elan interface {}, {}", entityId, elanInterface);
  67                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(
  68                     tx -> tx.put(LogicalDatastoreType.CONFIGURATION, elanInterfaceId, elanInterface)).get();
  69             } catch (InterruptedException | ExecutionException e) {
  70                 LOG.error("Service recovery failed for elan interface {}", entityId, e);
  71             }
  72         }
  73     }
  74
  75     private String buildServiceRegistryKey() {
  76         return NetvirtElanInterface.class.toString();
  77     }
  78 }