opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/OSGiDistributedShardedDOMDataTree.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.sharding;
   9
  10 import com.google.common.collect.ClassToInstanceMap;
  11 import java.util.Collection;
  12 import java.util.concurrent.CompletionStage;
  13 import org.opendaylight.controller.cluster.ActorSystemProvider;
  14 import org.opendaylight.controller.cluster.access.concepts.MemberName;
  15 import org.opendaylight.controller.cluster.datastore.DistributedDataStoreInterface;
  16 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  17 import org.opendaylight.mdsal.dom.api.DOMDataTreeListener;
  18 import org.opendaylight.mdsal.dom.api.DOMDataTreeLoopException;
  19 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducer;
  20 import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
  21 import org.opendaylight.mdsal.dom.api.DOMDataTreeServiceExtension;
  22 import org.opendaylight.mdsal.dom.api.DOMDataTreeShard;
  23 import org.opendaylight.mdsal.dom.api.DOMDataTreeShardingConflictException;
  24 import org.opendaylight.mdsal.dom.api.DOMDataTreeShardingService;
  25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  26 import org.osgi.service.component.annotations.Activate;
  27 import org.osgi.service.component.annotations.Component;
  28 import org.osgi.service.component.annotations.Deactivate;
  29 import org.osgi.service.component.annotations.Reference;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 @Component(immediate = true, property = "type=default")
  34 public final class OSGiDistributedShardedDOMDataTree
  35         implements DOMDataTreeService, DOMDataTreeShardingService, DistributedShardFactory {
  36     private static final Logger LOG = LoggerFactory.getLogger(OSGiDistributedShardedDOMDataTree.class);
  37
  38     @Reference
  39     ActorSystemProvider actorSystemProvider = null;
  40     @Reference(target = "(type=distributed-config)")
  41     DistributedDataStoreInterface configDatastore = null;
  42     @Reference(target = "(type=distributed-operational)")
  43     DistributedDataStoreInterface operDatastore = null;
  44
  45     private DistributedShardedDOMDataTree delegate;
  46
  47     @Override
  48     public DOMDataTreeProducer createProducer(final Collection<DOMDataTreeIdentifier> subtrees) {
  49         return delegate.createProducer(subtrees);
  50     }
  51
  52     @Override
  53     public ClassToInstanceMap<DOMDataTreeServiceExtension> getExtensions() {
  54         return delegate.getExtensions();
  55     }
  56
  57     @Override
  58     public CompletionStage<DistributedShardRegistration> createDistributedShard(final DOMDataTreeIdentifier prefix,
  59             final Collection<MemberName> replicaMembers) throws DOMDataTreeShardingConflictException {
  60         return delegate.createDistributedShard(prefix, replicaMembers);
  61     }
  62
  63     @Override
  64     public <T extends DOMDataTreeShard> ListenerRegistration<T> registerDataTreeShard(
  65             final DOMDataTreeIdentifier prefix, final T shard, final DOMDataTreeProducer producer)
  66             throws DOMDataTreeShardingConflictException {
  67         return delegate.registerDataTreeShard(prefix, shard, producer);
  68     }
  69
  70     @Override
  71     public <T extends DOMDataTreeListener> ListenerRegistration<T> registerListener(final T listener,
  72             final Collection<DOMDataTreeIdentifier> subtrees, final boolean allowRxMerges,
  73             final Collection<DOMDataTreeProducer> producers) throws DOMDataTreeLoopException {
  74         return delegate.registerListener(listener, subtrees, allowRxMerges, producers);
  75     }
  76
  77     @Activate
  78     void activate() {
  79         LOG.info("Distributed DOM Data Tree Service starting");
  80         delegate = new DistributedShardedDOMDataTree(actorSystemProvider, operDatastore, configDatastore);
  81         delegate.init();
  82         LOG.info("Distributed DOM Data Tree Service started");
  83     }
  84
  85     @Deactivate
  86     void deactivate() {
  87         LOG.info("Distributed DOM Data Tree Service stopping");
  88         // TODO: this needs a shutdown hook, I think
  89         delegate = null;
  90         LOG.info("Distributed DOM Data Tree Service stopped");
  91     }
  92 }