oops/base/Variables.h

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/*
 * (C) Copyright 2017-2018 UCAR
 * 
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
 */
 
#ifndef OOPS_BASE_VARIABLES_H_
#define OOPS_BASE_VARIABLES_H_
 
#include <ostream>
#include <string>
#include <vector>
 
 
#include "eckit/config/LocalConfiguration.h"
#include "oops/util/Printable.h"
 
namespace oops {
 
// -----------------------------------------------------------------------------
 
class Variables : public util::Printable {
 public:
  static const std::string classname() {return "oops::Variables";}
 
  Variables();
  Variables(const eckit::Configuration &, const std::string &);
  explicit Variables(const std::vector<std::string> &, const std::string & conv = "");
  Variables(const std::vector<std::string> & vars, const std::vector<int> & channels);
 
  ~Variables();
 
  Variables(const Variables &);
  Variables & operator+=(const Variables &);
 
  size_t size() const {return vars_.size();}
  const std::string & operator[](const size_t kk) const {return vars_.at(kk);}
  bool operator==(const Variables &) const;
  bool operator<=(const Variables &) const;
 
  bool has(const std::string &) const;
  size_t find(const std::string &) const;
 
  const std::vector<std::string> & variables() const {return vars_;}
  const std::vector<int> & channels() const {return channels_;}
  void push_back(const std::string &);
 
 private:
  void print(std::ostream &) const;
  void setConf();
 
  std::string convention_;
  std::vector<std::string> vars_;
  std::vector<int> channels_;        // channel indices
};
 
// -----------------------------------------------------------------------------
 
}  // namespace oops
 
#endif  // OOPS_BASE_VARIABLES_H_