corpus.h

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#ifndef META_CORPUS_H_
#define META_CORPUS_H_

#include <stdexcept>
#include <memory>

#include "meta.h"
#include "corpus/document.h"

namespace meta
{
namespace corpus
{

class corpus
{
  public:
    corpus(std::string encoding);

    virtual bool has_next() const = 0;

    virtual document next() = 0;

    virtual uint64_t size() const = 0;

    virtual ~corpus() = default;

    const std::string& encoding() const;

    static std::unique_ptr<corpus> load(const std::string& config_file);

    class corpus_exception : public std::runtime_error
    {
      public:
        using std::runtime_error::runtime_error;
    };

  private:
    std::string encoding_;
};
}
}

#endif