flink-connector-jdbc/src/test/java/org/apache/flink/connector/jdbc/testutils/databases/mysql/MySql57Database.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.flink.connector.jdbc.testutils.databases.mysql;

import org.apache.flink.connector.jdbc.testutils.DatabaseExtension;
import org.apache.flink.connector.jdbc.testutils.DatabaseMetadata;
import org.apache.flink.util.FlinkRuntimeException;

import org.testcontainers.containers.MySQLContainer;

/** A MySql database for testing. */
public class MySql57Database extends DatabaseExtension implements MySqlImages {

    private static final MySQLContainer<?> CONTAINER =
            new MySqlContainer(MYSQL_5_7)
                    .withCommand("--character-set-server=utf8")
                    .withEnv("MYSQL_ROOT_HOST", "%");

    private static MySqlMetadata metadata;

    public static MySqlMetadata getMetadata() {
        if (!CONTAINER.isRunning()) {
            throw new FlinkRuntimeException("Container is stopped.");
        }
        if (metadata == null) {
            metadata = new MySqlMetadata(CONTAINER, true);
        }
        return metadata;
    }

    @Override
    protected DatabaseMetadata startDatabase() throws Exception {
        CONTAINER.start();
        return getMetadata();
    }

    @Override
    protected void stopDatabase() throws Exception {
        CONTAINER.stop();
        metadata = null;
    }
}