/*
 * vdr-vodcatcher - A plugin for the Linux Video Disk Recorder
 * Copyright (c) 2007 - 2009 Tobias Grimm <vdr@e-tobi.net>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 */

#include "SdbmHashCalculator.h"
#include <sstream>
#include <iostream>

using namespace std;

string SdbmHashCalculator::Calculate(string str)
{
    unsigned long hash = 0;

    for (unsigned int i=0; i < str.length(); i++)
    {
        int character = str[i];
        hash = character + (hash << 6) + (hash << 16) - hash;
    }

    ostringstream hashString;
    hashString << hash;

    return hashString.str();
}