X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2Fentityownership%2FDistributedEntityOwnershipService.java;h=09c4e50335c7f451dd20660d96aea40e8cb0c3e2;hb=689370fdbfdd18d6bd25359b94b1a8f6d76aba1c;hp=90720eead6f180b4037356e2723a4f58910723a5;hpb=9883165b61255af5bfcb060b76b16f69a56b1f82;p=controller.git diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipService.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipService.java index 90720eead6..09c4e50335 100644 --- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipService.java +++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipService.java @@ -7,25 +7,48 @@ */ package org.opendaylight.controller.cluster.datastore.entityownership; +import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNER_NODE_ID; +import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.entityPath; import akka.actor.ActorRef; import akka.dispatch.OnComplete; +import akka.pattern.Patterns; import akka.util.Timeout; +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.Optional; +import com.google.common.base.Preconditions; +import com.google.common.base.Strings; +import java.util.Collection; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentMap; import java.util.concurrent.TimeUnit; import org.opendaylight.controller.cluster.datastore.DistributedDataStore; +import org.opendaylight.controller.cluster.datastore.config.Configuration; +import org.opendaylight.controller.cluster.datastore.config.ModuleShardConfiguration; import org.opendaylight.controller.cluster.datastore.entityownership.messages.RegisterCandidateLocal; +import org.opendaylight.controller.cluster.datastore.entityownership.messages.RegisterListenerLocal; +import org.opendaylight.controller.cluster.datastore.entityownership.messages.UnregisterCandidateLocal; +import org.opendaylight.controller.cluster.datastore.entityownership.messages.UnregisterListenerLocal; import org.opendaylight.controller.cluster.datastore.messages.CreateShard; +import org.opendaylight.controller.cluster.datastore.messages.GetShardDataTree; +import org.opendaylight.controller.cluster.datastore.shardstrategy.ModuleShardStrategy; import org.opendaylight.controller.md.sal.common.api.clustering.CandidateAlreadyRegisteredException; import org.opendaylight.controller.md.sal.common.api.clustering.Entity; -import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidate; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidateRegistration; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListener; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListenerRegistration; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService; +import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipState; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.clustering.entity.owners.rev150804.EntityOwners; +import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument; +import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild; +import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode; +import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; +import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree; import org.slf4j.Logger; import org.slf4j.LoggerFactory; +import scala.concurrent.Await; import scala.concurrent.Future; +import scala.concurrent.duration.Duration; /** * The distributed implementation of the EntityOwnershipService. @@ -38,8 +61,9 @@ public class DistributedEntityOwnershipService implements EntityOwnershipService private static final Timeout MESSAGE_TIMEOUT = new Timeout(1, TimeUnit.MINUTES); private final DistributedDataStore datastore; - private final ConcurrentMap registeredEntities = new ConcurrentHashMap<>(); + private final ConcurrentMap registeredEntities = new ConcurrentHashMap<>(); private volatile ActorRef localEntityOwnershipShard; + private volatile DataTree localEntityOwnershipShardDataTree; public DistributedEntityOwnershipService(DistributedDataStore datastore) { this.datastore = datastore; @@ -48,9 +72,11 @@ public class DistributedEntityOwnershipService implements EntityOwnershipService public void start() { ActorRef shardManagerActor = datastore.getActorContext().getShardManager(); - CreateShard createShard = new CreateShard(ENTITY_OWNERSHIP_SHARD_NAME, - datastore.getActorContext().getConfiguration().getUniqueMemberNamesForAllShards(), - newShardPropsCreator(), null); + Configuration configuration = datastore.getActorContext().getConfiguration(); + Collection entityOwnersMemberNames = configuration.getUniqueMemberNamesForAllShards(); + CreateShard createShard = new CreateShard(new ModuleShardConfiguration(EntityOwners.QNAME.getNamespace(), + "entity-owners", ENTITY_OWNERSHIP_SHARD_NAME, ModuleShardStrategy.NAME, entityOwnersMemberNames), + newShardPropsCreator(), null); Future createFuture = datastore.getActorContext().executeOperationAsync(shardManagerActor, createShard, MESSAGE_TIMEOUT); @@ -74,7 +100,6 @@ public class DistributedEntityOwnershipService implements EntityOwnershipService public void onComplete(Throwable failure, Object response) { if(failure != null) { LOG.debug("Error sending message {} to {}", message, shardActor, failure); - // TODO - queue for retry } else { LOG.debug("{} message to {} succeeded", message, shardActor, failure); } @@ -103,26 +128,89 @@ public class DistributedEntityOwnershipService implements EntityOwnershipService } @Override - public EntityOwnershipCandidateRegistration registerCandidate(Entity entity, EntityOwnershipCandidate candidate) + public EntityOwnershipCandidateRegistration registerCandidate(Entity entity) throws CandidateAlreadyRegisteredException { + Preconditions.checkNotNull(entity, "entity cannot be null"); - EntityOwnershipCandidate currentCandidate = registeredEntities.putIfAbsent(entity,candidate); - if(currentCandidate != null) { - throw new CandidateAlreadyRegisteredException(entity, currentCandidate); + if(registeredEntities.putIfAbsent(entity, entity) != null) { + throw new CandidateAlreadyRegisteredException(entity); } - RegisterCandidateLocal registerCandidate = new RegisterCandidateLocal(candidate, entity); + RegisterCandidateLocal registerCandidate = new RegisterCandidateLocal(entity); - LOG.debug("Registering candidate with message: " + registerCandidate); + LOG.debug("Registering candidate with message: {}", registerCandidate); executeLocalEntityOwnershipShardOperation(registerCandidate); - return new DistributedEntityOwnershipCandidateRegistration(candidate, entity); + return new DistributedEntityOwnershipCandidateRegistration(entity, this); + } + + void unregisterCandidate(Entity entity) { + LOG.debug("Unregistering candidate for {}", entity); + + executeLocalEntityOwnershipShardOperation(new UnregisterCandidateLocal(entity)); + registeredEntities.remove(entity); } @Override - public EntityOwnershipListenerRegistration registerListener(Entity entity, EntityOwnershipListener listener) { - // TODO Auto-generated method stub - return null; + public EntityOwnershipListenerRegistration registerListener(String entityType, EntityOwnershipListener listener) { + Preconditions.checkNotNull(entityType, "entityType cannot be null"); + Preconditions.checkNotNull(listener, "listener cannot be null"); + + RegisterListenerLocal registerListener = new RegisterListenerLocal(listener, entityType); + + LOG.debug("Registering listener with message: {}", registerListener); + + executeLocalEntityOwnershipShardOperation(registerListener); + return new DistributedEntityOwnershipListenerRegistration(listener, entityType, this); + } + + @Override + public Optional getOwnershipState(Entity forEntity) { + Preconditions.checkNotNull(forEntity, "forEntity cannot be null"); + + DataTree dataTree = getLocalEntityOwnershipShardDataTree(); + if(dataTree == null) { + return Optional.absent(); + } + + Optional> entityNode = dataTree.takeSnapshot().readNode( + entityPath(forEntity.getType(), forEntity.getId())); + if(!entityNode.isPresent()) { + return Optional.absent(); + } + + String localMemberName = datastore.getActorContext().getCurrentMemberName(); + Optional> ownerLeaf = ((MapEntryNode)entityNode.get()). + getChild(ENTITY_OWNER_NODE_ID); + String owner = ownerLeaf.isPresent() ? ownerLeaf.get().getValue().toString() : null; + boolean hasOwner = !Strings.isNullOrEmpty(owner); + boolean isOwner = hasOwner && localMemberName.equals(owner); + + return Optional.of(new EntityOwnershipState(isOwner, hasOwner)); + } + + private DataTree getLocalEntityOwnershipShardDataTree() { + if(localEntityOwnershipShardDataTree == null) { + try { + if(localEntityOwnershipShard == null) { + localEntityOwnershipShard = Await.result(datastore.getActorContext().findLocalShardAsync( + ENTITY_OWNERSHIP_SHARD_NAME), Duration.Inf()); + } + + localEntityOwnershipShardDataTree = (DataTree) Await.result(Patterns.ask(localEntityOwnershipShard, + GetShardDataTree.INSTANCE, MESSAGE_TIMEOUT), Duration.Inf()); + } catch (Exception e) { + LOG.error("Failed to find local {} shard", ENTITY_OWNERSHIP_SHARD_NAME, e); + } + } + + return localEntityOwnershipShardDataTree; + } + + void unregisterListener(String entityType, EntityOwnershipListener listener) { + LOG.debug("Unregistering listener {} for entity type {}", listener, entityType); + + executeLocalEntityOwnershipShardOperation(new UnregisterListenerLocal(listener, entityType)); } @Override @@ -130,6 +218,11 @@ public class DistributedEntityOwnershipService implements EntityOwnershipService } protected EntityOwnershipShardPropsCreator newShardPropsCreator() { - return new EntityOwnershipShardPropsCreator(); + return new EntityOwnershipShardPropsCreator(datastore.getActorContext().getCurrentMemberName()); + } + + @VisibleForTesting + ActorRef getLocalEntityOwnershipShard() { + return localEntityOwnershipShard; } }