git.opendaylight Code Review - netvirt.git/blob

   1 /*
   2  * Copyright (c) 2016 Red Hat, Inc. 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.netvirt.renderers.neutron;
   9
  10 import com.google.common.base.Optional;
  11 import org.slf4j.Logger;
  12 import org.slf4j.LoggerFactory;
  13 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipState;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
  16 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
  17 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
  18 import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
  19 import org.osgi.framework.BundleContext;
  20
  21 public class NeutronProvider implements BindingAwareProvider, AutoCloseable {
  22     private static final Logger LOG = LoggerFactory.getLogger(NeutronProvider.class);
  23     private BundleContext bundleContext = null;
  24     private static DataBroker dataBroker = null;
  25     private static EntityOwnershipService entityOwnershipService;
  26     private static final Entity ownerInstanceEntity = new Entity(Constants.NETVIRT_NEUTRON_OWNER_ENTITY_TYPE,
  27             Constants.NETVIRT_NEUTRON_OWNER_ENTITY_TYPE);
  28     private NeutronPortChangeListener neutronPortChangeListener;
  29     private NeutronNetworkChangeListener neutronNetworkChangeListener;
  30
  31     public NeutronProvider(BundleContext bundleContext, EntityOwnershipService eos) {
  32         LOG.info("Netvirt NeutronProvider: bundleContext: {}", bundleContext);
  33         this.bundleContext = bundleContext;
  34         entityOwnershipService = eos;
  35     }
  36
  37     public NeutronProvider() {
  38         LOG.info("Netvirt NeutronProvider created");
  39     }
  40
  41     public static boolean isMasterProviderInstance() {
  42         if (entityOwnershipService != null) {
  43             Optional<EntityOwnershipState> state = entityOwnershipService.getOwnershipState(ownerInstanceEntity);
  44             return state.isPresent() && state.get().isOwner();
  45         }
  46         return false;
  47     }
  48
  49
  50     @Override
  51     public void onSessionInitiated(ProviderContext providerContext) {
  52         dataBroker = providerContext.getSALService(DataBroker.class);
  53         LOG.info("Netvirt NeutronProvider: onSessionInitiated dataBroker: {}", dataBroker);
  54
  55         neutronPortChangeListener = new NeutronPortChangeListener(this, dataBroker);
  56         neutronNetworkChangeListener = new NeutronNetworkChangeListener(this, dataBroker);
  57     }
  58
  59     @Override
  60     public void close() throws Exception {
  61         if (neutronPortChangeListener != null) {
  62             neutronPortChangeListener.close();
  63         }
  64         if (neutronNetworkChangeListener != null) {
  65             neutronNetworkChangeListener.close();
  66         }
  67         LOG.info("Netvirt NeutronProvider Closed");
  68     }
  69
  70 }