elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/recovery/impl/L2GatewayConnectionInstanceRecoveryHandler.java

   1 /*
   2  * Copyright (c) 2019 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.recovery.impl;
   9
  10 import java.util.Optional;
  11 import java.util.concurrent.ExecutionException;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  15 import org.opendaylight.genius.utils.clustering.EntityOwnershipUtils;
  16 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  17 import org.opendaylight.mdsal.binding.api.DataBroker;
  18 import org.opendaylight.mdsal.binding.util.Datastore;
  19 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunner;
  20 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunnerImpl;
  21 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  22 import org.opendaylight.netvirt.elan.l2gw.utils.L2GatewayConnectionUtils;
  23 import org.opendaylight.serviceutils.srm.ServiceRecoveryInterface;
  24 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.L2gatewayConnections;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.l2gatewayconnections.L2gatewayConnection;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.l2gatewayconnections.L2gatewayConnectionKey;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.srm.types.rev180626.NetvirtL2gwConnection;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35
  36 @Singleton
  37 public class L2GatewayConnectionInstanceRecoveryHandler implements ServiceRecoveryInterface {
  38
  39     private static final Logger LOG = LoggerFactory.getLogger(L2GatewayConnectionInstanceRecoveryHandler.class);
  40
  41     private final ManagedNewTransactionRunner txRunner;
  42     private final DataBroker dataBroker;
  43     private ServiceRecoveryRegistry serviceRecoveryRegistry;
  44     private JobCoordinator jobCoordinator;
  45     private L2GatewayConnectionUtils l2GatewayConnectionUtils;
  46     private EntityOwnershipUtils entityOwnershipUtils;
  47
  48     @Inject
  49     public L2GatewayConnectionInstanceRecoveryHandler(DataBroker dataBroker,
  50                                                       ServiceRecoveryRegistry serviceRecoveryRegistry,
  51                                                       JobCoordinator jobCoordinator,
  52                                                       L2GatewayConnectionUtils l2GatewayConnectionUtils,
  53                                                       EntityOwnershipUtils entityOwnershipUtils) {
  54         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  55         this.dataBroker = dataBroker;
  56         this.serviceRecoveryRegistry = serviceRecoveryRegistry;
  57         this.jobCoordinator = jobCoordinator;
  58         this.l2GatewayConnectionUtils = l2GatewayConnectionUtils;
  59         this.entityOwnershipUtils = entityOwnershipUtils;
  60         serviceRecoveryRegistry.registerServiceRecoveryRegistry(buildServiceRegistryKey(),this);
  61     }
  62
  63     @Override
  64     @SuppressWarnings("ForbidCertainMethod")
  65     public void recoverService(String entityId) {
  66         LOG.info("recover l2gateway connection {}", entityId);
  67         // Fetch the l2 gateway connection from l2 gateway connection config DS first.
  68         Uuid uuid = Uuid.getDefaultInstance(entityId);
  69
  70         InstanceIdentifier<L2gatewayConnection> connectionInstanceIdentifier = InstanceIdentifier.create(Neutron.class)
  71                 .child(L2gatewayConnections.class)
  72                 .child(L2gatewayConnection.class, new L2gatewayConnectionKey(uuid));
  73
  74         Optional<L2gatewayConnection> l2gatewayConnectionOptional = Optional.empty();
  75         try {
  76             l2gatewayConnectionOptional = SingleTransactionDataBroker.syncReadOptional(
  77                     dataBroker, LogicalDatastoreType.CONFIGURATION, connectionInstanceIdentifier);
  78         } catch (ExecutionException | InterruptedException e) {
  79             LOG.error("recoverService: Exception while reading L2gatewayConnection DS", e);
  80         }
  81         //l2GatewayConnectionUtils.addL2GatewayConnection(l2gatewayConnectionOptional.get());
  82
  83         if (l2gatewayConnectionOptional.isPresent()) {
  84             L2gatewayConnection l2gatewayConnection = l2gatewayConnectionOptional.get();
  85
  86             try {
  87                 LOG.info("deleting l2 gateway connection {}",l2gatewayConnection.key());
  88                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(Datastore.CONFIGURATION,
  89                     tx -> tx.delete(connectionInstanceIdentifier)).get();
  90                 LOG.info("recreating l2 gateway connection {}, {}",entityId, l2gatewayConnection.key());
  91                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(Datastore.CONFIGURATION,
  92                     tx -> tx.put(connectionInstanceIdentifier, l2gatewayConnection)).get();
  93             } catch (InterruptedException | ExecutionException e) {
  94                 LOG.error("Service recovery failed for l2gw connection {}", entityId);
  95             }
  96         }
  97     }
  98
  99     public String buildServiceRegistryKey() {
 100         return NetvirtL2gwConnection.class.toString();
 101     }
 102 }