opendaylight/md-sal/sal-distributed-eos/src/main/java/org/opendaylight/controller/cluster/entityownership/OSGiDistributedEntityOwnershipService.java

   1 /*
   2  * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.controller.cluster.entityownership;
   9
  10 import com.google.common.annotations.Beta;
  11 import java.util.Map;
  12 import java.util.Optional;
  13 import org.opendaylight.controller.cluster.datastore.DistributedDataStoreInterface;
  14 import org.opendaylight.controller.cluster.entityownership.selectionstrategy.EntityOwnerSelectionStrategyConfigReader;
  15 import org.opendaylight.mdsal.eos.common.api.CandidateAlreadyRegisteredException;
  16 import org.opendaylight.mdsal.eos.common.api.EntityOwnershipState;
  17 import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
  18 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipCandidateRegistration;
  19 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipListener;
  20 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipListenerRegistration;
  21 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipService;
  22 import org.osgi.service.component.annotations.Activate;
  23 import org.osgi.service.component.annotations.Component;
  24 import org.osgi.service.component.annotations.Deactivate;
  25 import org.osgi.service.component.annotations.Reference;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 @Beta
  30 @Component(immediate = true, configurationPid = "org.opendaylight.controller.cluster.entity.owner.selection.strategies",
  31     property = "type=default")
  32 public final class OSGiDistributedEntityOwnershipService implements DOMEntityOwnershipService {
  33     private static final Logger LOG = LoggerFactory.getLogger(OSGiDistributedEntityOwnershipService.class);
  34
  35     @Reference(target = "(type=distributed-operational)")
  36     DistributedDataStoreInterface operDatastore = null;
  37
  38     private DistributedEntityOwnershipService delegate;
  39
  40     @Override
  41     public DOMEntityOwnershipCandidateRegistration registerCandidate(final DOMEntity entity)
  42             throws CandidateAlreadyRegisteredException {
  43         return delegate.registerCandidate(entity);
  44     }
  45
  46     @Override
  47     public DOMEntityOwnershipListenerRegistration registerListener(final String entityType,
  48             final DOMEntityOwnershipListener listener) {
  49         return delegate.registerListener(entityType, listener);
  50     }
  51
  52     @Override
  53     public Optional<EntityOwnershipState> getOwnershipState(final DOMEntity forEntity) {
  54         return delegate.getOwnershipState(forEntity);
  55     }
  56
  57     @Override
  58     public boolean isCandidateRegistered(final DOMEntity forEntity) {
  59         return delegate.isCandidateRegistered(forEntity);
  60     }
  61
  62     @Activate
  63     // FIXME: 3.0.0: properties are keyed by String, this should be Map<String, Object>
  64     void activate(final Map<Object, Object> properties) {
  65         LOG.info("Distributed Entity Ownership Service starting");
  66         delegate = DistributedEntityOwnershipService.start(operDatastore.getActorUtils(),
  67             EntityOwnerSelectionStrategyConfigReader.loadStrategyWithConfig(properties));
  68         LOG.info("Distributed Entity Ownership Service started");
  69     }
  70
  71     @Deactivate
  72     void deactivate() {
  73         LOG.info("Distributed Entity Ownership Service stopping");
  74         delegate.close();
  75         LOG.info("Distributed Entity Ownership Service stopped");
  76     }
  77 }