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Access to the Neo4j graph database through Java

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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.messaging.request;

import org.neo4j.driver.exceptions.ClientException;
import org.neo4j.driver.internal.DatabaseName;
import org.neo4j.driver.internal.messaging.BoltProtocolVersion;
import org.neo4j.driver.internal.messaging.v4.BoltProtocolV4;
import org.neo4j.driver.internal.messaging.v43.BoltProtocolV43;
import org.neo4j.driver.internal.spi.Connection;

public final class MultiDatabaseUtil {
    public static void assertEmptyDatabaseName(DatabaseName databaseName, BoltProtocolVersion boltVersion) {
        if (databaseName.databaseName().isPresent()) {
            throw new ClientException(String.format(
                    "Database name parameter for selecting database is not supported in Bolt Protocol Version %s. "
                            + "Database name: '%s'",
                    boltVersion, databaseName.description()));
        }
    }

    public static boolean supportsMultiDatabase(Connection connection) {
        return connection.protocol().version().compareTo(BoltProtocolV4.VERSION) >= 0;
    }

    public static boolean supportsRouteMessage(Connection connection) {
        return connection.protocol().version().compareTo(BoltProtocolV43.VERSION) >= 0;
    }
}