executive-feature-extractor.H

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#ifndef RERANKER_EXECUTIVE_FEATURE_EXTRACTOR_H_
#define RERANKER_EXECUTIVE_FEATURE_EXTRACTOR_H_

#include <iostream>
#include <string>
#include <memory>
#include <vector>

#include "candidate.H"
#include "candidate-set.H"
#include "feature-extractor.H"
#include "tokenizer.H"

namespace reranker {

using std::istream;
using std::string;
using std::shared_ptr;
using std::vector;

class ExecutiveFeatureExtractor : public FactoryConstructible {
 public:
  ExecutiveFeatureExtractor() { }
  virtual ~ExecutiveFeatureExtractor() { }

  static shared_ptr<ExecutiveFeatureExtractor> InitFromSpec(
      const string &filename);

  virtual void Reset() const = 0;

  virtual void Extract(CandidateSet &candidate_set) const = 0;
};

#define REGISTER_NAMED_EXECUTIVE_FEATURE_EXTRACTOR(TYPE,NAME) \
  REGISTER_NAMED(TYPE,NAME,ExecutiveFeatureExtractor)

#define REGISTER_EXECUTIVE_FEATURE_EXTRACTOR(TYPE) \
  REGISTER_NAMED_EXECUTIVE_FEATURE_EXTRACTOR(TYPE,TYPE)

class ExecutiveFeatureExtractorImpl : public ExecutiveFeatureExtractor {
  virtual void RegisterInitializers(Initializers &initializers) {
    initializers.Add("extractors", &extractors_);
  }
  virtual void Reset() const;
  virtual void Extract(CandidateSet &candidate_set) const;
 private:
  // data members
  vector<shared_ptr<FeatureExtractor> > extractors_;
};

}  // namespace reranker

#endif