StaticDataProvider.h

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#ifndef BPMNOS_Model_StaticDataProvider_H
#define BPMNOS_Model_StaticDataProvider_H
 
#include "DataProvider.h"
#include "model/utility/src/CSVReader.h"
#include <memory>
#include <vector>
 
namespace BPMNOS::Model {
 
/**
 * @brief Class representing a data provider for static BPMN instance data.
 *
 * The StaticDataProvider class is responsible for providing and managing instance data
 * for BPMN processes. 
 * */
class StaticDataProvider : public DataProvider {
public:
  /**
   * @brief Constructor for StaticDataProvider.
   *
   * @param modelFile The file path to the BPMN model file.
   * @param instanceFileOrString The file path to the instance data file or a string containing the data.
   */
  StaticDataProvider(const std::string& modelFile, const std::string& instanceFileOrString);
  /**
   * @brief Constructor for StaticDataProvider.
   *
   * @param modelFile The file path to the BPMN model file.
   * @param folders The folders containing lookup tables.
   * @param instanceFileOrString The file path to the instance data file or a string containing the data.
   */
  StaticDataProvider(const std::string& modelFile, const std::vector<std::string>& folders, const std::string& instanceFileOrString);
  ~StaticDataProvider() override = default;
  std::unique_ptr<Scenario> createScenario(unsigned int scenarioId = 0) override;
protected:
  /// Protected constructor that skips readInstances() - for derived classes
  StaticDataProvider(const std::string& modelFile, const std::vector<std::string>& folders);
 
  std::unique_ptr<CSVReader> reader;
  void readInstances();
 
  struct StaticInstanceData {
    const BPMN::Process* process;
    BPMNOS::number id;
    BPMNOS::number instantiation;
    std::unordered_map< const Attribute*, BPMNOS::number > data;
  };
  std::unordered_map< long unsigned int, StaticInstanceData > instances;
  std::unordered_map< const Attribute*, BPMNOS::number > globalValueMap;
  BPMNOS::number earliestInstantiation;
  BPMNOS::number latestInstantiation;
 
  void ensureDefaultValue(StaticInstanceData& instance, const std::string attributeId, std::optional<BPMNOS::number> value = std::nullopt);
  std::pair<std::string, std::string> parseInitialization(const std::string& initialization) const;
  virtual BPMNOS::number evaluateExpression(const std::string& expression) const;
};
 
} // namespace BPMNOS::Model
 
#endif // BPMNOS_Model_StaticDataProvider_H