applications/forwardingrules-manager/src/main/java/org/opendaylight/openflowplugin/applications/frm/recovery/impl/OpenflowServiceRecoveryHandlerImpl.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.openflowplugin.applications.frm.recovery.impl;
   9
  10 import javax.inject.Inject;
  11 import javax.inject.Singleton;
  12 import org.apache.aries.blueprint.annotation.service.Reference;
  13 import org.apache.aries.blueprint.annotation.service.Service;
  14 import org.opendaylight.openflowplugin.applications.frm.recovery.OpenflowServiceRecoveryHandler;
  15 import org.opendaylight.serviceutils.srm.RecoverableListener;
  16 import org.opendaylight.serviceutils.srm.ServiceRecoveryInterface;
  17 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.srm.types.rev180626.Ofplugin;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 @Singleton
  23 @Service(classes = OpenflowServiceRecoveryHandler.class)
  24 public class OpenflowServiceRecoveryHandlerImpl implements ServiceRecoveryInterface,
  25         OpenflowServiceRecoveryHandler {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(OpenflowServiceRecoveryHandlerImpl.class);
  28
  29     private final ServiceRecoveryRegistry serviceRecoveryRegistry;
  30
  31     @Inject
  32     public OpenflowServiceRecoveryHandlerImpl(@Reference final ServiceRecoveryRegistry serviceRecoveryRegistry) {
  33         LOG.info("Registering openflowplugin service recovery handlers");
  34         this.serviceRecoveryRegistry = serviceRecoveryRegistry;
  35         serviceRecoveryRegistry.registerServiceRecoveryRegistry(buildServiceRegistryKey(), this);
  36     }
  37
  38     private void deregisterListeners() {
  39         serviceRecoveryRegistry.getRecoverableListeners(buildServiceRegistryKey())
  40                 .forEach(RecoverableListener::deregisterListener);
  41     }
  42
  43     private void registerListeners() {
  44         serviceRecoveryRegistry.getRecoverableListeners(buildServiceRegistryKey())
  45                 .forEach(RecoverableListener::registerListener);
  46     }
  47
  48     @Override
  49     public void recoverService(final String entityId) {
  50         LOG.info("Recover Openflowplugin service by deregistering and registering all relevant listeners");
  51         deregisterListeners();
  52         //FIXME: device group registry cache to be cleared before starting the listeners
  53         registerListeners();
  54     }
  55
  56     @Override
  57     public String buildServiceRegistryKey() {
  58         return Ofplugin.class.toString();
  59     }
  60 }