Response.h

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// -*- mode: c++; c-basic-offset:4 -*-
 
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
 
// Copyright (c) 2002,2003 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 response_h
#define response_h
 
#include <cstdio>
#include <fstream>
#include <string>
 
#include "ObjectType.h"
 
namespace libdap {

class Response {
private:
    FILE *d_stream = nullptr;
    std::fstream *d_cpp_stream = nullptr;

    ObjectType d_type = unknown_type;
    std::string d_version{"dods/0.0"};
    std::string d_protocol{"2.0"};
    int d_status = 0;
 
protected:
    // Hack for HTTPResponse which may allocate a fstream pointer in a setter. jhrg 2/5/25
    bool d_delete_cpp_stream_ptr = false;
 
public:
    Response() = default;

    Response(const Response &) = delete;
    Response &operator=(const Response &) = delete;

    explicit Response(FILE *s, int status = 0) : d_stream(s), d_status(status) {}
 
    explicit Response(std::fstream *s, int status = 0) : d_cpp_stream(s), d_status(status) {}

    virtual ~Response() {
        if (d_stream)
            fclose(d_stream);
        if (d_cpp_stream) {
            d_cpp_stream->close();
            if (d_delete_cpp_stream_ptr)
                delete d_cpp_stream;
        }
    }

    virtual int get_status() const { return d_status; }
    virtual FILE *get_stream() const { return d_stream; }
    virtual std::istream *get_cpp_stream() const { return d_cpp_stream; }
 
    virtual ObjectType get_type() const { return d_type; }
    virtual std::string get_version() const { return d_version; }
    virtual std::string get_protocol() const { return d_protocol; }

    virtual void set_status(int s) { d_status = s; }
 
    virtual void set_stream(FILE *s) { d_stream = s; }
    virtual void set_cpp_stream(std::istream *s) { d_cpp_stream = dynamic_cast<std::fstream *>(s); }
 
    virtual void set_type(ObjectType o) { d_type = o; }
    virtual void set_version(const std::string &v) { d_version = v; }
    virtual void set_protocol(const std::string &p) { d_protocol = p; }
};
 
} // namespace libdap
 
#endif // response_h