HTTPCacheResponse.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 cache_http_response_h
#define cache_http_response_h
 
#include <cstdio>
 
#include "HTTPResponse.h"
 
namespace libdap {

class HTTPCacheResponse : public HTTPResponse {
private:
    HTTPCache *d_cache; // pointer to singleton instance
 
public:
    HTTPCacheResponse() = delete;
    HTTPCacheResponse(const HTTPCacheResponse &rs) = delete;
    HTTPCacheResponse &operator=(const HTTPCacheResponse &) = delete;

    HTTPCacheResponse(FILE *s, int status_code, const vector<string> &headers, HTTPCache *c)
        : HTTPResponse(s, status_code, headers, ""), d_cache(c) {}

    HTTPCacheResponse(FILE *s, int status_code, const vector<string> &headers, const string &file_name, HTTPCache *c)
        : HTTPResponse(s, status_code, headers, file_name), d_cache(c) {}

    ~HTTPCacheResponse() override {
        set_file(""); // This keeps ~HTTPResponse() from removing the cache entry.
        d_cache->release_cached_response(get_stream());
    }
};
 
} // namespace libdap
 
#endif // cache_http_response_h