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CoreStateMachinesModule.java
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CoreStateMachinesModule.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j Enterprise Edition. The included source
* code can be redistributed and/or modified under the terms of the
* GNU AFFERO GENERAL PUBLIC LICENSE Version 3
* (http://www.fsf.org/licensing/licenses/agpl-3.0.html) with the
* Commons Clause, as found in the associated LICENSE.txt file.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* Neo4j object code can be licensed independently from the source
* under separate terms from the AGPL. Inquiries can be directed to:
* licensing@neo4j.com
*
* More information is also available at:
* https://neo4j.com/licensing/
*/
package org.neo4j.causalclustering.core.state.machines;
import java.io.File;
import java.time.Clock;
import java.util.HashMap;
import java.util.Map;
import java.util.function.BooleanSupplier;
import java.util.function.Supplier;
import org.neo4j.causalclustering.catchup.storecopy.LocalDatabase;
import org.neo4j.causalclustering.core.consensus.LeaderLocator;
import org.neo4j.causalclustering.core.consensus.RaftMachine;
import org.neo4j.causalclustering.core.replication.RaftReplicator;
import org.neo4j.causalclustering.core.replication.Replicator;
import org.neo4j.causalclustering.core.state.machines.dummy.DummyMachine;
import org.neo4j.causalclustering.core.state.machines.id.CommandIndexTracker;
import org.neo4j.causalclustering.core.state.machines.id.IdAllocationState;
import org.neo4j.causalclustering.core.state.machines.id.IdReusabilityCondition;
import org.neo4j.causalclustering.core.state.machines.id.ReplicatedIdAllocationStateMachine;
import org.neo4j.causalclustering.core.state.machines.id.ReplicatedIdGeneratorFactory;
import org.neo4j.causalclustering.core.state.machines.id.ReplicatedIdRangeAcquirer;
import org.neo4j.causalclustering.core.state.machines.locks.LeaderOnlyLockManager;
import org.neo4j.causalclustering.core.state.machines.locks.ReplicatedLockTokenState;
import org.neo4j.causalclustering.core.state.machines.locks.ReplicatedLockTokenStateMachine;
import org.neo4j.causalclustering.core.state.machines.token.ReplicatedLabelTokenHolder;
import org.neo4j.causalclustering.core.state.machines.token.ReplicatedPropertyKeyTokenHolder;
import org.neo4j.causalclustering.core.state.machines.token.ReplicatedRelationshipTypeTokenHolder;
import org.neo4j.causalclustering.core.state.machines.token.ReplicatedTokenStateMachine;
import org.neo4j.causalclustering.core.state.machines.token.TokenRegistry;
import org.neo4j.causalclustering.core.state.machines.tx.RecoverConsensusLogIndex;
import org.neo4j.causalclustering.core.state.machines.tx.ReplicatedTransactionCommitProcess;
import org.neo4j.causalclustering.core.state.machines.tx.ReplicatedTransactionStateMachine;
import org.neo4j.causalclustering.core.state.storage.DurableStateStorage;
import org.neo4j.causalclustering.core.state.storage.StateStorage;
import org.neo4j.causalclustering.identity.MemberId;
import org.neo4j.graphdb.factory.module.CommunityEditionModule;
import org.neo4j.graphdb.factory.module.PlatformModule;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.tracing.cursor.PageCursorTracerSupplier;
import org.neo4j.io.pagecache.tracing.cursor.context.VersionContextSupplier;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.api.CommitProcessFactory;
import org.neo4j.kernel.impl.core.TokenHolders;
import org.neo4j.kernel.impl.enterprise.id.EnterpriseIdTypeConfigurationProvider;
import org.neo4j.kernel.impl.locking.Locks;
import org.neo4j.kernel.impl.logging.LogService;
import org.neo4j.kernel.impl.store.id.IdGeneratorFactory;
import org.neo4j.kernel.impl.store.id.IdType;
import org.neo4j.kernel.impl.store.id.configuration.IdTypeConfigurationProvider;
import org.neo4j.kernel.impl.store.stats.IdBasedStoreEntityCounters;
import org.neo4j.kernel.impl.util.Dependencies;
import org.neo4j.kernel.lifecycle.LifeSupport;
import org.neo4j.logging.LogProvider;
import org.neo4j.storageengine.api.StorageEngine;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.array_block_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.id_alloc_state_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.label_token_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.label_token_name_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.neostore_block_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.node_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.node_labels_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.property_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.property_key_token_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.property_key_token_name_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.relationship_group_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.relationship_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.relationship_type_token_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.relationship_type_token_name_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.replicated_lock_token_state_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.schema_id_allocation_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.state_machine_apply_max_batch_size;
import static org.neo4j.causalclustering.core.CausalClusteringSettings.string_block_id_allocation_size;
public class CoreStateMachinesModule
{
public static final String ID_ALLOCATION_NAME = "id-allocation";
public static final String LOCK_TOKEN_NAME = "lock-token";
public final IdGeneratorFactory idGeneratorFactory;
public final IdTypeConfigurationProvider idTypeConfigurationProvider;
public final TokenHolders tokenHolders;
public final Locks lockManager;
public final CommitProcessFactory commitProcessFactory;
public final CoreStateMachines coreStateMachines;
public final BooleanSupplier freeIdCondition;
public CoreStateMachinesModule( MemberId myself, PlatformModule platformModule, File clusterStateDirectory,
Config config, RaftReplicator replicator, RaftMachine raftMachine, Dependencies dependencies,
LocalDatabase localDatabase )
{
StateStorage<IdAllocationState> idAllocationState;
StateStorage<ReplicatedLockTokenState> lockTokenState;
final LifeSupport life = platformModule.life;
final FileSystemAbstraction fileSystem = platformModule.fileSystem;
LogService logging = platformModule.logging;
LogProvider logProvider = logging.getInternalLogProvider();
lockTokenState = life.add(
new DurableStateStorage<>( fileSystem, clusterStateDirectory, LOCK_TOKEN_NAME,
new ReplicatedLockTokenState.Marshal( new MemberId.Marshal() ),
config.get( replicated_lock_token_state_size ), logProvider ) );
idAllocationState = life.add(
new DurableStateStorage<>( fileSystem, clusterStateDirectory, ID_ALLOCATION_NAME,
new IdAllocationState.Marshal(),
config.get( id_alloc_state_size ), logProvider ) );
ReplicatedIdAllocationStateMachine idAllocationStateMachine =
new ReplicatedIdAllocationStateMachine( idAllocationState );
Map<IdType,Integer> allocationSizes = getIdTypeAllocationSizeFromConfig( config );
ReplicatedIdRangeAcquirer idRangeAcquirer =
new ReplicatedIdRangeAcquirer( replicator, idAllocationStateMachine, allocationSizes, myself,
logProvider );
idTypeConfigurationProvider = new EnterpriseIdTypeConfigurationProvider( config );
CommandIndexTracker commandIndexTracker = new CommandIndexTracker();
freeIdCondition = new IdReusabilityCondition( commandIndexTracker, raftMachine, myself );
this.idGeneratorFactory =
createIdGeneratorFactory( fileSystem, idRangeAcquirer, logProvider, idTypeConfigurationProvider );
dependencies.satisfyDependency( new IdBasedStoreEntityCounters( this.idGeneratorFactory ) );
TokenRegistry relationshipTypeTokenRegistry = new TokenRegistry( "RelationshipType" );
Supplier<StorageEngine> storageEngineSupplier = () -> localDatabase.dataSource().getDependencyResolver().resolveDependency( StorageEngine.class );
ReplicatedRelationshipTypeTokenHolder relationshipTypeTokenHolder =
new ReplicatedRelationshipTypeTokenHolder( relationshipTypeTokenRegistry, replicator,
this.idGeneratorFactory, storageEngineSupplier );
TokenRegistry propertyKeyTokenRegistry = new TokenRegistry( "PropertyKey" );
ReplicatedPropertyKeyTokenHolder propertyKeyTokenHolder =
new ReplicatedPropertyKeyTokenHolder( propertyKeyTokenRegistry, replicator, this.idGeneratorFactory,
storageEngineSupplier );
TokenRegistry labelTokenRegistry = new TokenRegistry( "Label" );
ReplicatedLabelTokenHolder labelTokenHolder =
new ReplicatedLabelTokenHolder( labelTokenRegistry, replicator, this.idGeneratorFactory,
storageEngineSupplier );
ReplicatedLockTokenStateMachine replicatedLockTokenStateMachine =
new ReplicatedLockTokenStateMachine( lockTokenState );
VersionContextSupplier versionContextSupplier = platformModule.versionContextSupplier;
ReplicatedTokenStateMachine labelTokenStateMachine =
new ReplicatedTokenStateMachine( labelTokenRegistry, logProvider, versionContextSupplier );
ReplicatedTokenStateMachine propertyKeyTokenStateMachine =
new ReplicatedTokenStateMachine( propertyKeyTokenRegistry, logProvider, versionContextSupplier );
ReplicatedTokenStateMachine relationshipTypeTokenStateMachine =
new ReplicatedTokenStateMachine( relationshipTypeTokenRegistry, logProvider, versionContextSupplier );
PageCursorTracerSupplier cursorTracerSupplier = platformModule.tracers.pageCursorTracerSupplier;
ReplicatedTransactionStateMachine replicatedTxStateMachine =
new ReplicatedTransactionStateMachine( commandIndexTracker, replicatedLockTokenStateMachine,
config.get( state_machine_apply_max_batch_size ), logProvider, cursorTracerSupplier,
versionContextSupplier );
dependencies.satisfyDependencies( replicatedTxStateMachine );
lockManager = createLockManager( config, platformModule.clock, logging, replicator, myself, raftMachine,
replicatedLockTokenStateMachine );
RecoverConsensusLogIndex consensusLogIndexRecovery = new RecoverConsensusLogIndex( localDatabase, logProvider );
coreStateMachines = new CoreStateMachines( replicatedTxStateMachine, labelTokenStateMachine,
relationshipTypeTokenStateMachine, propertyKeyTokenStateMachine, replicatedLockTokenStateMachine,
idAllocationStateMachine, new DummyMachine(), localDatabase, consensusLogIndexRecovery );
commitProcessFactory = ( appender, applier, ignored ) ->
{
localDatabase.registerCommitProcessDependencies( appender, applier );
return new ReplicatedTransactionCommitProcess( replicator );
};
this.tokenHolders = new TokenHolders( propertyKeyTokenHolder, labelTokenHolder, relationshipTypeTokenHolder );
}
private Map<IdType,Integer> getIdTypeAllocationSizeFromConfig( Config config )
{
Map<IdType,Integer> allocationSizes = new HashMap<>( IdType.values().length );
allocationSizes.put( IdType.NODE, config.get( node_id_allocation_size ) );
allocationSizes.put( IdType.RELATIONSHIP, config.get( relationship_id_allocation_size ) );
allocationSizes.put( IdType.PROPERTY, config.get( property_id_allocation_size ) );
allocationSizes.put( IdType.STRING_BLOCK, config.get( string_block_id_allocation_size ) );
allocationSizes.put( IdType.ARRAY_BLOCK, config.get( array_block_id_allocation_size ) );
allocationSizes.put( IdType.PROPERTY_KEY_TOKEN, config.get( property_key_token_id_allocation_size ) );
allocationSizes.put( IdType.PROPERTY_KEY_TOKEN_NAME, config.get( property_key_token_name_id_allocation_size ) );
allocationSizes.put( IdType.RELATIONSHIP_TYPE_TOKEN, config.get( relationship_type_token_id_allocation_size ) );
allocationSizes.put( IdType.RELATIONSHIP_TYPE_TOKEN_NAME, config.get( relationship_type_token_name_id_allocation_size ) );
allocationSizes.put( IdType.LABEL_TOKEN, config.get( label_token_id_allocation_size ) );
allocationSizes.put( IdType.LABEL_TOKEN_NAME, config.get( label_token_name_id_allocation_size ) );
allocationSizes.put( IdType.NEOSTORE_BLOCK, config.get( neostore_block_id_allocation_size ) );
allocationSizes.put( IdType.SCHEMA, config.get( schema_id_allocation_size ) );
allocationSizes.put( IdType.NODE_LABELS, config.get( node_labels_id_allocation_size ) );
allocationSizes.put( IdType.RELATIONSHIP_GROUP, config.get( relationship_group_id_allocation_size ) );
return allocationSizes;
}
private IdGeneratorFactory createIdGeneratorFactory( FileSystemAbstraction fileSystem,
final ReplicatedIdRangeAcquirer idRangeAcquirer, final LogProvider logProvider,
IdTypeConfigurationProvider idTypeConfigurationProvider )
{
return new ReplicatedIdGeneratorFactory( fileSystem, idRangeAcquirer,
logProvider, idTypeConfigurationProvider );
}
private Locks createLockManager( final Config config, Clock clock, final LogService logging,
final Replicator replicator, MemberId myself, LeaderLocator leaderLocator,
ReplicatedLockTokenStateMachine lockTokenStateMachine )
{
Locks localLocks = CommunityEditionModule.createLockManager( config, clock, logging );
return new LeaderOnlyLockManager( myself, replicator, leaderLocator, localLocks, lockTokenStateMachine );
}
}