org.neo4j.driver.internal.SessionFactoryImpl Maven / Gradle / Ivy

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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.neo4j.driver.internal;

import java.util.Optional;
import java.util.concurrent.CompletionStage;

import org.neo4j.driver.AccessMode;
import org.neo4j.driver.Config;
import org.neo4j.driver.Logging;
import org.neo4j.driver.SessionConfig;
import org.neo4j.driver.internal.async.LeakLoggingNetworkSession;
import org.neo4j.driver.internal.async.NetworkSession;
import org.neo4j.driver.internal.retry.RetryLogic;
import org.neo4j.driver.internal.spi.ConnectionProvider;

public class SessionFactoryImpl implements SessionFactory
{
    private final ConnectionProvider connectionProvider;
    private final RetryLogic retryLogic;
    private final Logging logging;
    private final boolean leakedSessionsLoggingEnabled;
    private final long defaultFetchSize;

    SessionFactoryImpl( ConnectionProvider connectionProvider, RetryLogic retryLogic, Config config )
    {
        this.connectionProvider = connectionProvider;
        this.leakedSessionsLoggingEnabled = config.logLeakedSessions();
        this.retryLogic = retryLogic;
        this.logging = config.logging();
        this.defaultFetchSize = config.fetchSize();
    }

    @Override
    public NetworkSession newInstance( SessionConfig sessionConfig )
    {
        BookmarkHolder bookmarkHolder = new DefaultBookmarkHolder( InternalBookmark.from( sessionConfig.bookmarks() ) );
        return createSession( connectionProvider, retryLogic, parseDatabaseName( sessionConfig ),
                              sessionConfig.defaultAccessMode(), bookmarkHolder, parseFetchSize( sessionConfig ),
                              sessionConfig.impersonatedUser().orElse( null ), logging );
    }

    private long parseFetchSize( SessionConfig sessionConfig )
    {
        return sessionConfig.fetchSize().orElse( defaultFetchSize );
    }

    private DatabaseName parseDatabaseName( SessionConfig sessionConfig )
    {
        return sessionConfig.database()
                .flatMap( name -> Optional.of( DatabaseNameUtil.database( name ) ) )
                .orElse( DatabaseNameUtil.defaultDatabase() );
    }

    @Override
    public CompletionStage verifyConnectivity()
    {
        return connectionProvider.verifyConnectivity();
    }

    @Override
    public CompletionStage close()
    {
        return connectionProvider.close();
    }

    @Override
    public CompletionStage supportsMultiDb()
    {
        return connectionProvider.supportsMultiDb();
    }

    /**
     * Get the underlying connection provider.
     * 
     * This method is only for testing
     *
     * @return the connection provider used by this factory.
     */
    public ConnectionProvider getConnectionProvider()
    {
        return connectionProvider;
    }

    private NetworkSession createSession( ConnectionProvider connectionProvider, RetryLogic retryLogic, DatabaseName databaseName, AccessMode mode,
                                          BookmarkHolder bookmarkHolder, long fetchSize, String impersonatedUser, Logging logging )
    {
        return leakedSessionsLoggingEnabled
               ? new LeakLoggingNetworkSession( connectionProvider, retryLogic, databaseName, mode, bookmarkHolder, impersonatedUser, fetchSize, logging )
               : new NetworkSession( connectionProvider, retryLogic, databaseName, mode, bookmarkHolder, impersonatedUser, fetchSize, logging );
    }
}