package org.openautonomousconnection.oac2web.utils;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Objects;

/**
 * Very small JDBC helper for the oac2web registrar frontend.
 */
public final class Oac2WebDb {

    private final String url;
    private final String user;
    private final String password;

    /**
     * Creates a JDBC helper.
     *
     * @param url JDBC url
     * @param user JDBC username
     * @param password JDBC password
     */
    public Oac2WebDb(String url, String user, String password) {
        this.url = Objects.requireNonNull(url, "url");
        this.user = Objects.requireNonNull(user, "user");
        this.password = Objects.requireNonNull(password, "password");
    }

    /**
     * Opens a new JDBC connection.
     *
     * @return connection
     * @throws SQLException if open fails
     */
    public Connection open() throws SQLException {
        return DriverManager.getConnection(url, user, password);
    }
}