BESAggFactory.h

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// BESAggFactory.h

// This file is part of bes, A C++ back-end server implementation framework
// for the OPeNDAP Data Access Protocol.

// Copyright (c) 2004-2009 University Corporation for Atmospheric Research
// Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library 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
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact University Corporation for Atmospheric Research at
// 3080 Center Green Drive, Boulder, CO 80301

// (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
// Please read the full copyright statement in the file COPYRIGHT_UCAR.
//
// Authors:
//      pwest       Patrick West <pwest@ucar.edu>
//      jgarcia     Jose Garcia <jgarcia@ucar.edu>

#ifndef I_BESAggFactory_h
#define I_BESAggFactory_h 1

#include <map>
#include <string>

using std::map;
using std::string;

#include "BESObj.h"

class BESAggregationServer;

typedef BESAggregationServer * (*p_agg_handler)(const string &name);

class BESAggFactory: public BESObj
{
private:
    static BESAggFactory * _instance;

    map<string, p_agg_handler> _handler_list;
protected:
    BESAggFactory(void)
    {
    }
public:
    virtual ~BESAggFactory(void)
    {
    }

    typedef map<string, p_agg_handler>::const_iterator Handler_citer;
    typedef map<string, p_agg_handler>::iterator Handler_iter;

    virtual bool add_handler(const string &handler_name, p_agg_handler handler_method);
    virtual bool remove_handler(const string &handler_name);
    virtual BESAggregationServer *find_handler(const string &handler_name);

    virtual string get_handler_names();

    virtual void dump(ostream &strm) const;

    static BESAggFactory * TheFactory();
};

#endif // I_BESAggFactory_h