/home/palakars/workspace-inprogress/code-in-progress/aitools3/aitools3-aq-invertedindex-cpp/src/writer/PostlistWriter.hpp

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/* Copyright (C) 2010 webis.de
 * All rights reserved.
 */
#ifndef AITOOLS_INVERTEDINDEX_POSTLIST_WRITER_HPP
#define AITOOLS_INVERTEDINDEX_POSTLIST_WRITER_HPP

#include "Iterator.hpp"
#include "NonCopyable.hpp"
#include <boost/shared_ptr.hpp>
#include <boost/filesystem.hpp>
#include <cstdio> // std::feof

namespace aitools {
namespace invertedindex {

class PostlistWriter : public NonCopyable {

public: // nested types

        typedef boost::shared_ptr<PostlistWriter> SharedPointer;

public: // c'tor / d'tor

        PostlistWriter();

        PostlistWriter(const bfs::path& path) throw (std::invalid_argument);

        ~PostlistWriter();

public: // member

        void close();

        bool is_open() const;

        void open(const bfs::path& path)
        throw (std::runtime_error, std::invalid_argument);

        void write(Iterator::SharedPointer iterator);

        const bfs::path& path() const;

        bool ready() const;

        uint64_t tell();

private: // data

        FILE*     file_;
        bfs::path path_;

};

} // namespace invertedindex
} // namespace aitools

#endif // AITOOLS_INVERTEDINDEX_POSTLIST_WRITER_HPP

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