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#ifndef MOZC_CONVERTER_CONNECTOR_H_
#define MOZC_CONVERTER_CONNECTOR_H_

#include <vector>

#include "base/port.h"
#include "base/scoped_ptr.h"
#include "converter/connector_interface.h"

namespace mozc {

class DataManagerInterface;

class Connector : public ConnectorInterface {
 public:
  static Connector *CreateFromDataManager(
      const DataManagerInterface &data_manager);

  Connector(const char *connection_data, size_t connection_size,
            int cache_size);
  virtual ~Connector();

  virtual int GetTransitionCost(uint16 rid, uint16 lid) const;
  virtual int GetResolution() const;

  void ClearCache();

 private:
  class Row;

  int LookupCost(uint16 rid, uint16 lid) const;

  vector<Row *> rows_;
  const uint16 *default_cost_;
  int resolution_;

  const int cache_size_;
  const uint32 cache_hash_mask_;
  mutable scoped_ptr<uint32[]> cache_key_;
  mutable scoped_ptr<int[]> cache_value_;

  DISALLOW_COPY_AND_ASSIGN(Connector);
};

}  // namespace mozc

#endif  // MOZC_CONVERTER_CONNECTOR_H_