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NativeLuceneFusionSchemaIndexProviderFactory.java
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NativeLuceneFusionSchemaIndexProviderFactory.java
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/*
* Copyright (c) 2002-2018 "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.kernel.api.impl.schema;
import java.io.File;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.helpers.Service;
import org.neo4j.index.internal.gbptree.RecoveryCleanupWorkCollector;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.kernel.api.index.IndexDirectoryStructure;
import org.neo4j.kernel.api.index.LoggingMonitor;
import org.neo4j.kernel.api.index.SchemaIndexProvider;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.extension.KernelExtensionFactory;
import org.neo4j.kernel.impl.factory.OperationalMode;
import org.neo4j.kernel.impl.index.schema.NumberSchemaIndexProvider;
import org.neo4j.kernel.impl.index.schema.TemporalSchemaIndexProvider;
import org.neo4j.kernel.impl.index.schema.fusion.FusionSchemaIndexProvider;
import org.neo4j.kernel.impl.index.schema.fusion.FusionSelector;
import org.neo4j.kernel.impl.index.schema.fusion.SpatialFusionSchemaIndexProvider;
import org.neo4j.kernel.impl.spi.KernelContext;
import org.neo4j.kernel.monitoring.Monitors;
import org.neo4j.logging.Log;
import static org.neo4j.kernel.api.index.IndexDirectoryStructure.directoriesByProvider;
import static org.neo4j.kernel.api.index.IndexDirectoryStructure.directoriesBySubProvider;
@Service.Implementation( KernelExtensionFactory.class )
public class NativeLuceneFusionSchemaIndexProviderFactory
extends KernelExtensionFactory<NativeLuceneFusionSchemaIndexProviderFactory.Dependencies>
{
public static final String KEY = LuceneSchemaIndexProviderFactory.KEY + "+" + NumberSchemaIndexProvider.KEY;
private static final int PRIORITY = LuceneSchemaIndexProvider.PRIORITY + 1;
public static final SchemaIndexProvider.Descriptor DESCRIPTOR = new SchemaIndexProvider.Descriptor( KEY, "1.0" );
public interface Dependencies extends LuceneSchemaIndexProviderFactory.Dependencies
{
PageCache pageCache();
RecoveryCleanupWorkCollector recoveryCleanupWorkCollector();
}
public NativeLuceneFusionSchemaIndexProviderFactory()
{
super( KEY );
}
@Override
public FusionSchemaIndexProvider newInstance( KernelContext context, Dependencies dependencies )
{
PageCache pageCache = dependencies.pageCache();
File storeDir = context.storeDir();
FileSystemAbstraction fs = dependencies.fileSystem();
Log log = dependencies.getLogService().getInternalLogProvider().getLog( FusionSchemaIndexProvider.class );
Monitors monitors = dependencies.monitors();
monitors.addMonitorListener( new LoggingMonitor( log ), KEY );
SchemaIndexProvider.Monitor monitor = monitors.newMonitor( SchemaIndexProvider.Monitor.class, KEY );
Config config = dependencies.getConfig();
OperationalMode operationalMode = context.databaseInfo().operationalMode;
RecoveryCleanupWorkCollector recoveryCleanupWorkCollector = dependencies.recoveryCleanupWorkCollector();
return newInstance( pageCache, storeDir, fs, monitor, config, operationalMode, recoveryCleanupWorkCollector );
}
public static FusionSchemaIndexProvider newInstance( PageCache pageCache, File storeDir, FileSystemAbstraction fs,
SchemaIndexProvider.Monitor monitor, Config config, OperationalMode operationalMode,
RecoveryCleanupWorkCollector recoveryCleanupWorkCollector )
{
IndexDirectoryStructure.Factory childDirectoryStructure = subProviderDirectoryStructure( storeDir );
boolean readOnly = isReadOnly( config, operationalMode );
NumberSchemaIndexProvider nativeProvider =
new NumberSchemaIndexProvider( pageCache, fs, childDirectoryStructure, monitor, recoveryCleanupWorkCollector, readOnly );
SpatialFusionSchemaIndexProvider spatialProvider =
new SpatialFusionSchemaIndexProvider( pageCache, fs, childDirectoryStructure, monitor, recoveryCleanupWorkCollector, readOnly, config );
TemporalSchemaIndexProvider temporalProvider =
new TemporalSchemaIndexProvider( pageCache, fs, childDirectoryStructure, monitor, recoveryCleanupWorkCollector, readOnly );
LuceneSchemaIndexProvider luceneProvider = LuceneSchemaIndexProviderFactory.create( fs, childDirectoryStructure, monitor, config,
operationalMode );
boolean useNativeIndex = config.get( GraphDatabaseSettings.enable_native_schema_index );
int priority = useNativeIndex ? PRIORITY : 0;
return new FusionSchemaIndexProvider( nativeProvider,
spatialProvider, temporalProvider, luceneProvider, new FusionSelector(), DESCRIPTOR, priority, directoriesByProvider( storeDir ), fs );
}
public static IndexDirectoryStructure.Factory subProviderDirectoryStructure( File storeDir )
{
IndexDirectoryStructure parentDirectoryStructure = directoriesByProvider( storeDir ).forProvider( DESCRIPTOR );
return directoriesBySubProvider( parentDirectoryStructure );
}
private static boolean isReadOnly( Config config, OperationalMode operationalMode )
{
return config.get( GraphDatabaseSettings.read_only ) && (OperationalMode.single == operationalMode);
}
}