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Revert "Merge pull request #9910 from burqen/3.3-nsni-revert"
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...stency-check/src/main/java/org/neo4j/consistency/internal/SchemaIndexExtensionLoader.java
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/* | ||
* 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; | ||
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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; | ||
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/** | ||
* 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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