*
     * @param o
     *            the object to convert
     * @return the converted {@literal long}
     */
    public static long toPrimitiveLong(final Object o) {
        return toPrimitiveLong(o, null);
    }

    /**
     * Converts the given object to a {@literal long}.
     *
     * @param o
     *            the object to convert
     * @param pattern

     */
    public void testToPrimitiveLong() throws Exception {
        assertEquals(1000, LongConversionUtil.toPrimitiveLong("1,000"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveLongForEmptyString() throws Exception {
        assertEquals(0, LongConversionUtil.toPrimitiveLong(""));
    }

    /**
     * @throws Exception
     */