Resource.h

Go to the documentation of this file.

 
// -*- mode: c++; c-basic-offset:4 -*-
 
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
 
// Copyright (c) 2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@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 resource_h
#define resource_h
 
#include <iostream>
#include <string>
 
#ifndef _error_h
#include "Error.h"
#endif
 
using namespace std;
 
namespace libdap {

class Resource {
public:
    enum rule { overwrite, replace, fallback };

    Resource() : d_url(""), d_rule(overwrite) {}

    Resource(const string &u) : d_url(u), d_rule(overwrite) {}

    Resource(const string &u, const rule &r) : d_url(u), d_rule(r) {}

    Resource(const string &u, const string &r) throw(Error) : d_url(u) {
        if (r == "replace")
            d_rule = replace;
        else if (r == "fallback")
            d_rule = fallback;
        else if (r == "overwrite" || r == "default")
            d_rule = overwrite;
        else
            throw Error(string("An AIS Resource object was created with an unknown rule type '") + r);
    }
 
    virtual ~Resource() {}

    virtual string get_url() const { return d_url; }

    virtual void set_url(const string &u) { d_url = u; }

    virtual Resource::rule get_rule() const { return d_rule; }

    virtual void set_rule(const Resource::rule &r) { d_rule = r; }

    friend ostream &operator<<(ostream &os, const Resource &r);
 
private:
    string d_url;
    Resource::rule d_rule;
};
 
} // namespace libdap
 
#endif // resource_h