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.opendaylight.infrautils.diagstatus.DiagStatusService;
  14 import org.opendaylight.infrautils.diagstatus.ServiceDescriptor;
  15 import org.opendaylight.infrautils.diagstatus.ServiceState;
  16 import org.opendaylight.infrautils.diagstatus.ServiceStatusProvider;
  17 import org.opendaylight.netvirt.elan.internal.ElanServiceProvider;
  18 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  19 import org.ops4j.pax.cdi.api.OsgiServiceProvider;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 /**
  24  * ElanDiagStatusProvider which lets ELAN register/unregister for infrautils status and diagnostics related services.
  25  */
  26 @Singleton
  27 @OsgiServiceProvider(classes = ServiceStatusProvider.class)
  28 public class ElanDiagStatusProvider implements ServiceStatusProvider {
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(ElanDiagStatusProvider.class);
  31
  32     private final DiagStatusService diagStatusService;
  33     private volatile ServiceDescriptor serviceDescriptor;
  34
  35     @Inject
  36     public ElanDiagStatusProvider(final ElanServiceProvider elanServiceProvider,
  37                                   final DiagStatusService diagStatusService) {
  38         this.diagStatusService = diagStatusService;
  39         diagStatusService.register(ElanConstants.ELAN_SERVICE_NAME);
  40         serviceDescriptor = new ServiceDescriptor(ElanConstants.ELAN_SERVICE_NAME, ServiceState.OPERATIONAL,
  41                 "Service started");
  42         diagStatusService.report(serviceDescriptor);
  43     }
  44
  45     @PreDestroy
  46     public void close() {
  47         serviceDescriptor = new ServiceDescriptor(ElanConstants.ELAN_SERVICE_NAME, ServiceState.UNREGISTERED,
  48                 "Service Closed");
  49         diagStatusService.report(serviceDescriptor);
  50     }
  51
  52     @Override
  53     public ServiceDescriptor getServiceDescriptor() {
  54         // TODO Add logic here to derive the dynamic service state.
  55         // Currently this is just returning the initial state.
  56         return serviceDescriptor;
  57     }
  58 }