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LifecycleManagedBoltFactory.java
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LifecycleManagedBoltFactory.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.bolt.v1.runtime;
import java.time.Clock;
import org.neo4j.bolt.security.auth.Authentication;
import org.neo4j.bolt.v1.runtime.cypher.CypherStatementRunner;
import org.neo4j.graphdb.DependencyResolver;
import org.neo4j.kernel.GraphDatabaseQueryService;
import org.neo4j.kernel.api.bolt.BoltConnectionTracker;
import org.neo4j.kernel.impl.core.ThreadToStatementContextBridge;
import org.neo4j.kernel.impl.logging.LogService;
import org.neo4j.kernel.impl.query.QueryExecutionEngine;
import org.neo4j.kernel.impl.transaction.log.TransactionIdStore;
import org.neo4j.kernel.internal.GraphDatabaseAPI;
import org.neo4j.kernel.lifecycle.LifeSupport;
import org.neo4j.kernel.lifecycle.LifecycleAdapter;
import org.neo4j.udc.UsageData;
public class LifecycleManagedBoltFactory extends LifecycleAdapter implements BoltFactory
{
private final GraphDatabaseAPI gds;
private final LifeSupport life = new LifeSupport();
private final UsageData usageData;
private final LogService logging;
private final Authentication authentication;
private final BoltConnectionTracker connectionTracker;
private final ThreadToStatementContextBridge txBridge;
private QueryExecutionEngine queryExecutionEngine;
private GraphDatabaseQueryService queryService;
private TransactionIdStore transactionIdStore;
public LifecycleManagedBoltFactory( GraphDatabaseAPI gds, UsageData usageData, LogService logging,
ThreadToStatementContextBridge txBridge, Authentication authentication,
BoltConnectionTracker connectionTracker )
{
this.gds = gds;
this.usageData = usageData;
this.logging = logging;
this.txBridge = txBridge;
this.authentication = authentication;
this.connectionTracker = connectionTracker;
}
@Override
public void init() throws Throwable
{
life.init();
}
@Override
public void start() throws Throwable
{
DependencyResolver dependencyResolver = gds.getDependencyResolver();
queryExecutionEngine = dependencyResolver.resolveDependency( QueryExecutionEngine.class );
queryService = dependencyResolver.resolveDependency( GraphDatabaseQueryService.class );
transactionIdStore = dependencyResolver.resolveDependency( TransactionIdStore.class );
life.start();
}
@Override
public void stop() throws Throwable
{
life.stop();
}
@Override
public void shutdown() throws Throwable
{
life.shutdown();
}
@Override
public BoltStateMachine newMachine( String connectionDescriptor, Runnable onClose, Clock clock )
{
final CypherStatementRunner statementRunner = new CypherStatementRunner( queryExecutionEngine, queryService );
TransactionStateMachine.SPI transactionSPI = new TransactionStateMachineSPI( gds, txBridge,
queryExecutionEngine, statementRunner, transactionIdStore );
BoltStateMachine.SPI boltSPI = new BoltStateMachineSPI( connectionDescriptor, usageData,
logging, authentication, connectionTracker, transactionSPI );
return new BoltStateMachine( boltSPI, onClose, Clock.systemUTC() );
}
}