elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/diagstatus/ElanDiagStatusProvider.java

   1 /*
   2  * Copyright (c) 2017 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.diagstatus;
   9
  10 import javax.annotation.PreDestroy;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.apache.aries.blueprint.annotation.service.Service;
  14 import org.opendaylight.infrautils.diagstatus.DiagStatusService;
  15 import org.opendaylight.infrautils.diagstatus.ServiceDescriptor;
  16 import org.opendaylight.infrautils.diagstatus.ServiceState;
  17 import org.opendaylight.infrautils.diagstatus.ServiceStatusProvider;
  18 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 /**
  23  * ElanDiagStatusProvider which lets ELAN register/unregister for infrautils status and diagnostics related services.
  24  */
  25 @Singleton
  26 @Service(classes = ServiceStatusProvider.class)
  27 public class ElanDiagStatusProvider implements ServiceStatusProvider {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(ElanDiagStatusProvider.class);
  30
  31     private final DiagStatusService diagStatusService;
  32     private volatile ServiceDescriptor serviceDescriptor;
  33
  34     @Inject
  35     public ElanDiagStatusProvider(final DiagStatusService diagStatusService) {
  36         this.diagStatusService = diagStatusService;
  37         diagStatusService.register(ElanConstants.ELAN_SERVICE_NAME);
  38         serviceDescriptor = new ServiceDescriptor(ElanConstants.ELAN_SERVICE_NAME, ServiceState.OPERATIONAL,
  39                 "Service started");
  40         diagStatusService.report(serviceDescriptor);
  41     }
  42
  43     @PreDestroy
  44     public void close() {
  45         serviceDescriptor = new ServiceDescriptor(ElanConstants.ELAN_SERVICE_NAME, ServiceState.UNREGISTERED,
  46                 "Service Closed");
  47         diagStatusService.report(serviceDescriptor);
  48     }
  49
  50     @Override
  51     public ServiceDescriptor getServiceDescriptor() {
  52         // TODO Add logic here to derive the dynamic service state.
  53         // Currently this is just returning the initial state.
  54         return serviceDescriptor;
  55     }
  56 }