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Merge pull request #9804 from tinwelint/3.3-nsni-combined-index-provi…
…der--migration Native + Lucene Fusion index as default
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...stency-check/src/main/java/org/neo4j/consistency/internal/SchemaIndexExtensionLoader.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,87 @@ | ||
| /* | ||
| * Copyright (c) 2002-2017 "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.consistency.internal; | ||
|
|
||
| import java.io.File; | ||
|
|
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| import org.neo4j.helpers.Service; | ||
| import org.neo4j.index.internal.gbptree.CleanupJob; | ||
| 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.SchemaIndexProvider; | ||
| import org.neo4j.kernel.configuration.Config; | ||
| import org.neo4j.kernel.extension.KernelExtensionFactory; | ||
| import org.neo4j.kernel.extension.KernelExtensions; | ||
| import org.neo4j.kernel.extension.UnsatisfiedDependencyStrategies; | ||
| import org.neo4j.kernel.extension.dependency.AllByPrioritySelectionStrategy; | ||
| import org.neo4j.kernel.impl.api.index.SchemaIndexProviderMap; | ||
| import org.neo4j.kernel.impl.factory.DatabaseInfo; | ||
| import org.neo4j.kernel.impl.logging.LogService; | ||
| import org.neo4j.kernel.impl.spi.KernelContext; | ||
| import org.neo4j.kernel.impl.spi.SimpleKernelContext; | ||
| import org.neo4j.kernel.impl.transaction.state.DefaultSchemaIndexProviderMap; | ||
| import org.neo4j.kernel.impl.util.Dependencies; | ||
| import org.neo4j.kernel.lifecycle.LifecycleAdapter; | ||
|
|
||
| /** | ||
| * Utility for loading {@link SchemaIndexProvider} instances from {@link KernelExtensions}. | ||
| */ | ||
| public class SchemaIndexExtensionLoader | ||
| { | ||
| /** | ||
| * Used in scenarios where recovery isn't allowed. | ||
| */ | ||
| public static final RecoveryCleanupWorkCollector RECOVERY_PREVENTING_COLLECTOR = new RecoveryPreventingCollector(); | ||
|
|
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| public static SchemaIndexProviderMap loadSchemaIndexProviders( KernelExtensions extensions ) | ||
| { | ||
| AllByPrioritySelectionStrategy<SchemaIndexProvider> indexProviderSelection = new AllByPrioritySelectionStrategy<>(); | ||
| SchemaIndexProvider defaultIndexProvider = | ||
| extensions.resolveDependency( SchemaIndexProvider.class, indexProviderSelection ); | ||
| return new DefaultSchemaIndexProviderMap( defaultIndexProvider, | ||
| indexProviderSelection.lowerPrioritizedCandidates() ); | ||
| } | ||
|
|
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| @SuppressWarnings( "unchecked" ) | ||
| public static KernelExtensions instantiateKernelExtensions( File storeDir, FileSystemAbstraction fileSystem, | ||
| Config config, LogService logService, PageCache pageCache, | ||
| RecoveryCleanupWorkCollector recoveryCollector, DatabaseInfo databaseInfo ) | ||
| { | ||
| Dependencies deps = new Dependencies(); | ||
| deps.satisfyDependencies( fileSystem, config, logService, pageCache, recoveryCollector ); | ||
| @SuppressWarnings( "rawtypes" ) | ||
| Iterable kernelExtensions = Service.load( KernelExtensionFactory.class ); | ||
| KernelContext kernelContext = new SimpleKernelContext( storeDir, databaseInfo, deps ); | ||
| return new KernelExtensions( kernelContext, kernelExtensions, deps, UnsatisfiedDependencyStrategies.ignore() ); | ||
| } | ||
|
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| private static class RecoveryPreventingCollector extends LifecycleAdapter implements RecoveryCleanupWorkCollector | ||
| { | ||
| @Override | ||
| public void add( CleanupJob job ) | ||
| { | ||
| if ( job.needed() ) | ||
| { | ||
| throw new IllegalStateException( "Consistency checker should not do recovery" ); | ||
| } | ||
| } | ||
| } | ||
| } |
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