elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/recovery/impl/ElanServiceRecoveryHandler.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 javax.inject.Inject;
  11 import javax.inject.Singleton;
  12 import org.opendaylight.serviceutils.srm.ServiceRecoveryInterface;
  13 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.srm.types.rev180626.NetvirtElan;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 @Singleton
  19 public class ElanServiceRecoveryHandler implements ServiceRecoveryInterface {
  20
  21     private static final Logger LOG = LoggerFactory.getLogger(ElanServiceRecoveryHandler.class);
  22
  23     private final ServiceRecoveryRegistry serviceRecoveryRegistry;
  24
  25     @Inject
  26     public ElanServiceRecoveryHandler(final ServiceRecoveryRegistry serviceRecoveryRegistry) {
  27         LOG.info("registering ELAN service recovery handlers");
  28         this.serviceRecoveryRegistry = serviceRecoveryRegistry;
  29         serviceRecoveryRegistry.registerServiceRecoveryRegistry(buildServiceRegistryKey(), this);
  30     }
  31
  32     private void deregisterListeners() {
  33         serviceRecoveryRegistry.getRecoverableListeners(buildServiceRegistryKey())
  34                 .forEach((recoverableListener -> recoverableListener.deregisterListener()));
  35     }
  36
  37     private void registerListeners() {
  38         serviceRecoveryRegistry.getRecoverableListeners(buildServiceRegistryKey())
  39                         .forEach((recoverableListener -> recoverableListener.registerListener()));
  40     }
  41
  42     @Override
  43     public void recoverService(final String entityId) {
  44         LOG.info("recover ELAN service by deregistering and registering all relevant listeners");
  45         deregisterListeners();
  46         registerListeners();
  47     }
  48
  49     public String buildServiceRegistryKey() {
  50         return NetvirtElan.class.toString();
  51     }
  52 }
  53