// ServerFunctionsList.h

// This file is part of bes, A C++ back-end server implementation framework

// for the OPeNDAP Data Access Protocol.

// -*- mode: c++; c-basic-offset:4 -*-

// This file is part of libdap, A C++ implementation of the OPeNDAP Data

// Access Protocol.

// Copyright (c) 2013 OPeNDAP, Inc.

// Author: Nathan Potter <npotter@opendap.org>

//

// 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 OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.

#ifndef I_ServerFunctionsList_h

#define I_ServerFunctionsList_h 1

#include <map>

#include <string>

#include <expr.h>

#include <D4Function.h>

#include <ServerFunction.h>

namespace libdap {

class ServerFunctionsListUnitTest;

class ConstraintEvaluator;

class ServerFunctionsList {

private:

    static ServerFunctionsList * d_instance;

    std::multimap<std::string, ServerFunction *> d_func_list;

    static void initialize_instance();

    static void delete_instance();

    virtual ~ServerFunctionsList();

    friend class ServerFunctionsListUnitTest;

protected:

    ServerFunctionsList() {}

public:

    // Added typedefs to reduce clutter jhrg 3/12/14

    typedef std::multimap<std::string, ServerFunction *>::iterator SFLIter;

    typedef std::multimap<std::string, ServerFunction *>::const_iterator SFLCIter;

    static ServerFunctionsList * TheList();

    virtual void add_function(ServerFunction *func);

    virtual bool find_function(const std::string &name, bool_func *f) const;

    virtual bool find_function(const std::string &name, btp_func  *f) const;

    virtual bool find_function(const std::string &name, proj_func *f) const;

    virtual bool find_function(const std::string &name, D4Function *f) const;

    SFLIter begin();

    SFLIter end();

    ServerFunction *getFunction(SFLIter it);

    virtual void getFunctionNames(std::vector<std::string> *names);

};

}

#endif // I_ServerFunctionsList_h