json_io_impl.hh

Go to the documentation of this file.

#ifndef CASM_database_json_io_impl
#define CASM_database_json_io_impl
 
#include "casm/casm_io/container/json_io.hh"
#include "casm/casm_io/json/jsonParser.hh"
#include "casm/database/DatabaseTypes_impl.hh"
#include "casm/database/Selection.hh"
#include "casm/database/io/json_io.hh"
#include "casm/misc/TypeInfo.hh"
 
namespace CASM {
namespace DB {
 
template <typename DataObject>
Selection<DataObject> make_selection(Database<DataObject> &db,
                                     const jsonParser &kwargs,
                                     std::string name_key, std::string sel_key,
                                     OnError on_error) {
  std::vector<std::string> obj_names;
  std::string sel_name;
  kwargs.get_else(obj_names, name_key, std::vector<std::string>());
  kwargs.get_else(sel_name, sel_key, std::string("NONE"));
 
  DB::Selection<DataObject> sel(db, sel_name);
  for (const auto &name : obj_names) {
    // validate obj_names & handle errors
    if (!sel.db().count(name)) {
      if (on_error == OnError::THROW || on_error == OnError::WARN) {
        std::string msg = "Error in make_selection<" + type_name<DataObject>() +
                          ">: \"" + name + "\" is not in the database.";
        throw std::runtime_error(msg);
      } else if (on_error == OnError::CONTINUE) {
        continue;
      } else {
        std::string msg = "Error in make_selection<" + type_name<DataObject>() +
                          ">: Unknown error";
        throw std::runtime_error(msg);
      }
    }
    sel.data()[name] = true;
  }
  return sel;
}
 
}  // namespace DB
}  // namespace CASM
 
#endif