public static HikariDataSource retriableDataSource(Callable<HikariDataSource> dataSource,
                                                   RuntimeParameters runtimeParams,
                                                   DatabaseDefinition databaseDefinition,
                                                   Logger logger) {
    RetryPolicy retryPolicy = new RetryPolicy()
            .retryOn(HikariPool.PoolInitializationException.class)
            .withDelay(runtimeParams.connectionRetryDelayInSeconds(), SECONDS)
            .withMaxRetries(runtimeParams.maxConnectionRetries());

    return Failsafe.with(retryPolicy)
            .onRetry((result, failure, context) -> logRetry(runtimeParams, databaseDefinition, logger))
            .onFailedAttempt((result, failure, context) -> logFailedAttempt(databaseDefinition, logger))
            .onRetriesExceeded(throwable -> logRetriesExceeded(databaseDefinition, logger))
            .get(dataSource);
}
 

/**
 * Setups the {@link HikariDataSource}
 */
@Override
public void setupDataSource() {
    try {
        loadMySQLDriver();

        HikariConfig hikariConfig = new HikariConfig();

        String host = config.get(DatabaseSettings.MYSQL_HOST);
        String port = config.get(DatabaseSettings.MYSQL_PORT);
        String database = config.get(DatabaseSettings.MYSQL_DATABASE);
        String launchOptions = config.get(DatabaseSettings.MYSQL_LAUNCH_OPTIONS);
        // REGEX: match "?", match "word=word&" *-times, match "word=word"
        if (launchOptions.isEmpty() || !launchOptions.matches("\\?((\\w*=\\w*)&)*(\\w*=\\w*)")) {
            launchOptions = "?rewriteBatchedStatements=true&useSSL=false";
            logger.error(locale.getString(PluginLang.DB_MYSQL_LAUNCH_OPTIONS_FAIL, launchOptions));
        }
        hikariConfig.setDriverClassName("com.mysql.cj.jdbc.Driver");
        hikariConfig.setJdbcUrl("jdbc:mysql://" + host + ":" + port + "/" + database + launchOptions);

        String username = config.get(DatabaseSettings.MYSQL_USER);
        String password = config.get(DatabaseSettings.MYSQL_PASS);

        hikariConfig.setUsername(username);
        hikariConfig.setPassword(password);
        hikariConfig.addDataSourceProperty("connectionInitSql", "set time_zone = '+00:00'");

        hikariConfig.setPoolName("Plan Connection Pool-" + increment);
        increment();

        hikariConfig.setAutoCommit(true);
        hikariConfig.setMaximumPoolSize(8);
        hikariConfig.setMaxLifetime(TimeUnit.MINUTES.toMillis(25L));
        hikariConfig.setLeakDetectionThreshold(TimeUnit.MINUTES.toMillis(10L));

        this.dataSource = new HikariDataSource(hikariConfig);
    } catch (HikariPool.PoolInitializationException e) {
        throw new DBInitException("Failed to set-up HikariCP Datasource: " + e.getMessage(), e);
    }
}