org.neo4j.kernel.impl.index.schema.SchemaIndexExtensionLoader Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of neo4j-kernel Show documentation

Neo4j kernel is a lightweight, embedded Java database designed to store data structured as graphs rather than tables. For more information, see http://neo4j.org.

There is a newer version: 5.25.1

Show newest version

/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://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 .
 */
package org.neo4j.kernel.impl.index.schema;

import static org.neo4j.collection.Dependencies.dependenciesOf;

import org.neo4j.configuration.Config;
import org.neo4j.dbms.database.readonly.DatabaseReadOnlyChecker;
import org.neo4j.index.internal.gbptree.RecoveryCleanupWorkCollector;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.layout.DatabaseLayout;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.io.pagecache.tracing.PageCacheTracer;
import org.neo4j.kernel.api.index.IndexProvider;
import org.neo4j.kernel.extension.DatabaseExtensions;
import org.neo4j.kernel.extension.ExtensionFactory;
import org.neo4j.kernel.extension.ExtensionFailureStrategies;
import org.neo4j.kernel.extension.context.DatabaseExtensionContext;
import org.neo4j.kernel.impl.factory.DbmsInfo;
import org.neo4j.logging.internal.LogService;
import org.neo4j.monitoring.Monitors;
import org.neo4j.scheduler.JobScheduler;
import org.neo4j.service.Services;
import org.neo4j.token.TokenHolders;

/**
 * Utility for loading {@link IndexProvider} instances from {@link DatabaseExtensions}.
 */
public class SchemaIndexExtensionLoader {

    @SuppressWarnings("unchecked")
    public static DatabaseExtensions instantiateExtensions(
            DatabaseLayout databaseLayout,
            FileSystemAbstraction fileSystem,
            Config config,
            LogService logService,
            PageCache pageCache,
            JobScheduler jobScheduler,
            RecoveryCleanupWorkCollector recoveryCollector,
            DbmsInfo dbmsInfo,
            Monitors monitors,
            TokenHolders tokenHolders,
            PageCacheTracer pageCacheTracer,
            DatabaseReadOnlyChecker readOnlyChecker) {
        var deps = dependenciesOf(
                fileSystem,
                config,
                logService,
                pageCache,
                recoveryCollector,
                monitors,
                jobScheduler,
                tokenHolders,
                pageCacheTracer,
                databaseLayout,
                readOnlyChecker);
        @SuppressWarnings("rawtypes")
        Iterable extensions = Services.loadAll(ExtensionFactory.class);
        DatabaseExtensionContext extensionContext = new DatabaseExtensionContext(databaseLayout, dbmsInfo, deps);
        return new DatabaseExtensions(extensionContext, extensions, deps, ExtensionFailureStrategies.ignore());
    }
}