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