change_class.hpp

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// DUNE DAQ modification notice:
// This file has been modified from the original ATLAS dbe source for the DUNE DAQ project.
// Fork baseline commit: dbe-02-12-17 (2022-05-12).
// Renamed since fork: yes (from dbe/change_class.hpp to include/dbe/change_class.hpp).
 
/*
 * change_class.hpp
 *
 *  Created on: Nov 10, 2015
 *      Author: lgeorgop
 */
 
#ifndef DBE_CHANGE_CLASS_HPP_
#define DBE_CHANGE_CLASS_HPP_
 
#include "dbe/Command.hpp"
#include "dbe/Exceptions.hpp"
#include "dbe/confaccessor.hpp"
#include "dbe/config_api_set.hpp"
#include "dbe/messenger.hpp"
 
#include "conffwk/ConfigObject.hpp"
#include "conffwk/Errors.hpp"
#include "conffwk/Schema.hpp"
 
#include <QObject>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
 
#include <string>
 
namespace dbe {
namespace actions {
//------------------------------------------------------------------------------------------
template<typename T>
class ChangeClass : public onobject
{
public:
  ChangeClass(tref Object, dunedaq::conffwk::attribute_t AttributeData, T NewValueData, QUndoCommand* parent = nullptr);
  void undo();
  void redo();
 
private:
  T OldValue;
  T NewValue;
  dunedaq::conffwk::attribute_t Attribute;
  bool Success;
};
 
template<typename T>
ChangeClass<T>::ChangeClass(tref Object,
                            dunedaq::conffwk::attribute_t AttributeData,
                            T NewValueData,
                            QUndoCommand* parent)
  : onobject(Object, parent)
  , NewValue(NewValueData)
  , Attribute(AttributeData)
  , Success(true)
{
  try {
    QStringList Data{ dbe::config::api::get::attribute::list<QStringList>(Object, Attribute) };
    OldValue = convert::to<T>(Data);
  } catch (dunedaq::conffwk::Exception const&) {
  }
 
  setText(
    QObject::tr("Attribute %1 of object %2 was updated.").arg(AttributeData.p_name.c_str()).arg(Object.UID().c_str()));
}
 
template<typename T>
void
ChangeClass<T>::undo()
{
  try {
    if (isvalid()) {
      failed();
      dbe::config::api::set::noactions::aclass(this->checkedref(), Attribute, OldValue);
      toggle();
    }
  } catch (dunedaq::conffwk::Exception const& e) {
    Success = false;
    throw daq::dbe::ObjectChangeWasNotSuccessful(ERS_HERE, e);
  } catch (daq::dbe::config_object_retrieval_result_is_null const& ex) {
    FAIL("Operation did not complete because a lookup in the underlying database failed", ex.what());
    throw daq::dbe::ObjectChangeWasNotSuccessful(ERS_HERE, ex);
  }
}
 
template<typename T>
void
ChangeClass<T>::redo()
{
  try {
    if (isvalid()) {
      failed();
      QStringList Data{ dbe::config::api::get::attribute::list<QStringList>(this->checkedref(), Attribute) };
      OldValue = convert::to<T>(Data);
 
      dbe::config::api::set::noactions::aclass(this->checkedref(), Attribute, NewValue);
      toggle();
    }
  } catch (dunedaq::conffwk::Exception const& e) {
    Success = false;
    throw daq::dbe::ObjectChangeWasNotSuccessful(ERS_HERE, e);
  } catch (daq::dbe::config_object_retrieval_result_is_null const& ex) {
    FAIL("Operation did not complete because a lookup in the underlying database failed", ex.what());
    throw daq::dbe::ObjectChangeWasNotSuccessful(ERS_HERE, ex);
  }
}
 
}
}
#endif // DBE_CHANGE_CLASS_HPP_