qosservice/impl/src/main/java/org/opendaylight/netvirt/qosservice/recovery/QosServiceRecoveryHandler.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.qosservice.recovery;
   9
  10 import javax.inject.Inject;
  11 import javax.inject.Singleton;
  12 import org.opendaylight.serviceutils.srm.RecoverableListener;
  13 import org.opendaylight.serviceutils.srm.ServiceRecoveryInterface;
  14 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.srm.types.rev180626.NetvirtQos;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19
  20 @Singleton
  21 public class QosServiceRecoveryHandler implements ServiceRecoveryInterface {
  22
  23     private static final Logger LOG = LoggerFactory.getLogger(QosServiceRecoveryHandler.class);
  24     private final ServiceRecoveryRegistry serviceRecoveryRegistry;
  25
  26     @Inject
  27     public QosServiceRecoveryHandler(final ServiceRecoveryRegistry serviceRecoveryRegistry) {
  28         LOG.info("Registering Qos for service recovery");
  29         this.serviceRecoveryRegistry = serviceRecoveryRegistry;
  30         serviceRecoveryRegistry.registerServiceRecoveryRegistry(buildServiceRegistryKey(), this);
  31     }
  32
  33     @Override
  34     public void recoverService(final String entityId) {
  35         LOG.info("recover QOS service by de-registering and registering all relevant listeners");
  36         deregisterListeners();
  37         registerListeners();
  38     }
  39
  40     private void deregisterListeners() {
  41         LOG.trace("De-Registering QOS Listeners for recovery");
  42         serviceRecoveryRegistry.getRecoverableListeners(buildServiceRegistryKey())
  43             .forEach((RecoverableListener::deregisterListener));
  44     }
  45
  46     private void registerListeners() {
  47         LOG.trace("Re-Registering QOS Listeners for recovery");
  48         serviceRecoveryRegistry.getRecoverableListeners(buildServiceRegistryKey())
  49             .forEach((RecoverableListener::registerListener));
  50     }
  51
  52     public String buildServiceRegistryKey() {
  53         return NetvirtQos.class.toString();
  54     }
  55 }