throw new IllegalArgumentException( "Input stream cannot be null." );
        }
        if ( fileName == null || fileName.length( ) == 0 )
        {
            throw new IllegalArgumentException( "File name cannot be null or empty." );
        }

        Calendar cal = Calendar.getInstance( );
        String uUID = String.valueOf( cal.get( Calendar.YEAR ) ) + String.valueOf( cal.get( Calendar.MONTH ) )
                + String.valueOf( cal.get( Calendar.DAY_OF_MONTH ) ) + String.valueOf( cal.get( Calendar.HOUR_OF_DAY ) )
                + String.valueOf( cal.get( Calendar.MINUTE ) ) + String.valueOf( cal.get( Calendar.SECOND ) );

        /*
         * --boundary\r\n Content-Disposition: form-data; name="<fieldName>"; filename="<filename>"\r\n Content-Type: <mime-type>\r\n \r\n <file-data>\r\n
         */
        // write boundary
        _out.writeBytes( PREFIX );
        _out.writeBytes( _boundary );
        _out.writeBytes( NEWLINE );
        // write content header
        _out.writeBytes( "Content-Disposition: form-data; name=\"" + name + "\"; filename=\"" + uUID + "_" + fileName + "\"" );
        _out.writeBytes( NEWLINE );
        if ( mimeType != null )
        {
            _out.writeBytes( "Content-Type: " + mimeType );
            _out.writeBytes( NEWLINE );
        }
        _out.writeBytes( NEWLINE );

public class MapConverter implements Converter
{
    /**
     * Méthode permettant de convertir une date d'un type à l'autre
     * 
     * @param type
     *            Type de la date passée en paramètre Les types suivants peuvent être précisés : - {@link String} - {@link Timestamp} - {@link Date} -
     *            {@link Calendar}
     * @param value
     *            date à convertir en {@link Timestamp}
     * @return une date de type {@link Timestamp} ou null en cas d'erreur
     */
    public Object convert( Class type, Object value ) throws ConversionException
    {
        if ( value != null )
        {
            // Support Calendar and Timestamp conversion
            if ( value instanceof String )
            {
                if ( !( (String) value ).trim( ).equals( "" ) )
                {
                    Timestamp date = DateUtils.getDate( (String) value, true );

                    if ( date == null )
                    {
                        TimestampValidation timestampValidation = new TimestampValidation( (String) value );
                        timestampValidation.setIdTypeError( TimestampValidation.ERROR_DATE_FORMAT );

                        return timestampValidation;
                    }

                    return date;
                }
            }

            if ( value instanceof Timestamp )
            {
                return value;
            }
            else
                if ( value instanceof Date )
                {
                    return new Timestamp( ( (Date) value ).getTime( ) );
                }
                else
                    if ( value instanceof Calendar )
                    {
                        return new Timestamp( ( (Calendar) value ).getTime( ).getTime( ) );
                    }
        }

        return null;
    }
}

        Calendar caldate = new GregorianCalendar( );
        caldate.setTime( date );
        caldate.set( Calendar.MILLISECOND, 0 );
        caldate.set( Calendar.SECOND, 0 );

        if ( isStartOfDayHour )
        {
            caldate.set( Calendar.HOUR_OF_DAY, caldate.getActualMinimum( Calendar.HOUR_OF_DAY ) );
            caldate.set( Calendar.MINUTE, caldate.getActualMinimum( Calendar.MINUTE ) );
        }
        else
        {
            caldate.set( Calendar.HOUR_OF_DAY, caldate.getActualMaximum( Calendar.HOUR_OF_DAY ) );
            caldate.set( Calendar.MINUTE, caldate.getActualMaximum( Calendar.MINUTE ) );
            caldate.set( Calendar.SECOND, caldate.getActualMaximum( Calendar.SECOND ) );
        }

        Timestamp timeStamp = new Timestamp( caldate.getTimeInMillis( ) );

        return timeStamp;
    }

    /**
     * Renvoie la date sous le format défini par strPattern
     * 
     * @param date
     *            la date
     * @param strPattern
     *            le format souhaite de la date
     * @return la date sous forme EEEE dd MMMM yyyy
     */
    public static String getDate( Timestamp date, String strPattern )