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IdContextFactoryBuilder.java
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IdContextFactoryBuilder.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.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.graphdb.factory.module.id;
import java.util.function.Function;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.kernel.impl.store.id.DefaultIdGeneratorFactory;
import org.neo4j.kernel.impl.store.id.IdGeneratorFactory;
import org.neo4j.kernel.impl.store.id.IdReuseEligibility;
import org.neo4j.kernel.impl.store.id.configuration.CommunityIdTypeConfigurationProvider;
import org.neo4j.kernel.impl.store.id.configuration.IdTypeConfigurationProvider;
import org.neo4j.scheduler.JobScheduler;
import static java.util.Objects.requireNonNull;
import static java.util.function.Function.identity;
public class IdContextFactoryBuilder
{
private IdReuseEligibility idReuseEligibility = IdReuseEligibility.ALWAYS;
private FileSystemAbstraction fileSystemAbstraction;
private JobScheduler jobScheduler;
private Function<String,IdGeneratorFactory> idGeneratorFactoryProvider;
private IdTypeConfigurationProvider idTypeConfigurationProvider;
private Function<IdGeneratorFactory,IdGeneratorFactory> factoryWrapper;
private IdContextFactoryBuilder()
{
}
public static IdContextFactoryBuilder of( IdTypeConfigurationProvider configurationProvider, JobScheduler jobScheduler )
{
IdContextFactoryBuilder builder = new IdContextFactoryBuilder();
builder.idTypeConfigurationProvider = configurationProvider;
builder.jobScheduler = jobScheduler;
return builder;
}
public static IdContextFactoryBuilder of( FileSystemAbstraction fileSystemAbstraction, JobScheduler jobScheduler )
{
IdContextFactoryBuilder builder = new IdContextFactoryBuilder();
builder.fileSystemAbstraction = fileSystemAbstraction;
builder.jobScheduler = jobScheduler;
return builder;
}
public IdContextFactoryBuilder withFileSystem( FileSystemAbstraction fileSystem )
{
this.fileSystemAbstraction = fileSystem;
return this;
}
public IdContextFactoryBuilder withIdReuseEligibility( IdReuseEligibility eligibleForIdReuse )
{
this.idReuseEligibility = eligibleForIdReuse;
return this;
}
public IdContextFactoryBuilder withIdGenerationFactoryProvider( Function<String,IdGeneratorFactory> idGeneratorFactoryProvider )
{
this.idGeneratorFactoryProvider = idGeneratorFactoryProvider;
return this;
}
public IdContextFactoryBuilder withFactoryWrapper( Function<IdGeneratorFactory,IdGeneratorFactory> factoryWrapper )
{
this.factoryWrapper = factoryWrapper;
return this;
}
public IdContextFactory build()
{
if ( idGeneratorFactoryProvider == null )
{
requireNonNull( fileSystemAbstraction, "File system is required to build id generator factory." );
idGeneratorFactoryProvider = databaseName -> new DefaultIdGeneratorFactory( fileSystemAbstraction, idTypeConfigurationProvider );
}
if ( idTypeConfigurationProvider == null )
{
idTypeConfigurationProvider = new CommunityIdTypeConfigurationProvider();
}
if ( factoryWrapper == null )
{
factoryWrapper = identity();
}
return new IdContextFactory( jobScheduler, idGeneratorFactoryProvider, idTypeConfigurationProvider, idReuseEligibility, factoryWrapper );
}
}