package de.gurkengewuerz.termbin;

import java.sql.*;

/**
 * Created by gurkengewuerz.de on 08.04.2017.
 */
public class Database {

    private String sUrl = null;
    private int iTimeout = 30;
    private Connection conn = null;
    private Statement statement = null;


    public Database(String sUrlToLoad) throws Exception {
        setUrl(sUrlToLoad);
        setConnection();
        setStatement();
    }

    private void setUrl(String sUrlVar) {
        sUrl = sUrlVar;
    }

    private void setConnection() throws Exception {
        conn = DriverManager.getConnection("jdbc:sqlite:" + sUrl);
    }


    public Connection getConnection() {
        return conn;
    }

    private void setStatement() throws Exception {
        if (conn == null) {
            setConnection();
        }
        statement = conn.createStatement();
        statement.setQueryTimeout(iTimeout);  // set timeout to 30 sec.
    }

    public PreparedStatement getPreparedStatement(String sql) throws SQLException {
        return conn.prepareStatement(sql);
    }

    public void executeUpdate(String instruction) throws SQLException {
        statement.executeUpdate(instruction);
    }

    public ResultSet executeQuery(String instruction) throws SQLException {
        return statement.executeQuery(instruction);
    }

    public void closeConnection() {
        try {
            conn.close();
        } catch (Exception ignore) {
        }
    }
}