core/Variables.hpp

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/*
  This file is part of OpenFLUID software
  Copyright (c) 2007-2010 INRA-Montpellier SupAgro


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 == Other Usage ==

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*/


#ifndef __VARIABLES_HPP__
#define __VARIABLES_HPP__


#include <openfluid/core/TypeDefs.hpp>
#include <openfluid/core/ValuesBuffer.hpp>
#include <openfluid/dllexport.hpp>

namespace openfluid { namespace core {


template <class T>
class DLLEXPORT Variables
{
  private :

    typedef std::map<VariableName_t,ValuesBuffer<T> > VariablesMap_t;
    VariablesMap_t m_Data;


  public :

    Variables();

    ~Variables();

    bool createVariable(const VariableName_t aName);

    bool modifyValue(const VariableName_t aName, const TimeStep_t aStep, const T aValue);

    bool appendValue(const VariableName_t aName, const T aValue);

    bool getValue(const VariableName_t aName, const TimeStep_t aStep, T *aValue) const;

    bool getCurrentValue(const VariableName_t aName, T *aValue) const;

    bool isVariableExist(const VariableName_t aName) const;

    bool isVariableExist(const VariableName_t aName, const TimeStep_t aStep) const;

    std::vector<VariableName_t> getVariablesNames() const;

    unsigned int getVariableValuesCount(const VariableName_t aName) const;

    bool isAllVariablesCount(unsigned int Count) const;

    void clear();

};


// =====================================================================
// =====================================================================


template <class T>
Variables<T>::Variables()
{

}


// =====================================================================
// =====================================================================


template <class T>
Variables<T>::~Variables()
{

}

// =====================================================================
// =====================================================================


template <class T>
bool Variables<T>::createVariable(const VariableName_t aName)
{
  if (!isVariableExist(aName))
  {
    m_Data[aName];
    return true;
  }
  return false;
}

// =====================================================================
// =====================================================================

template <class T>
bool Variables<T>::modifyValue(const VariableName_t aName, const TimeStep_t aStep, const T aValue)
{
  if (isVariableExist(aName,aStep))
  {
    return m_Data[aName].modifyValue(aStep,aValue);
  }
  return false;
}


// =====================================================================
// =====================================================================


template <class T>
bool Variables<T>::appendValue(const VariableName_t aName, const T aValue)
{
  if (isVariableExist(aName))
  {
     return m_Data[aName].appendValue(aValue);
  }
  return false;
}

// =====================================================================
// =====================================================================


template <class T>
bool Variables<T>::getValue(const VariableName_t aName, const TimeStep_t aStep, T* aValue) const
{

  typename VariablesMap_t::const_iterator it = m_Data.find(aName);

  if (it != m_Data.end())
  {
    return it->second.getValue(aStep,aValue);
  }

  return false;
}


// =====================================================================
// =====================================================================


template <class T>
bool Variables<T>::getCurrentValue(const VariableName_t aName, T* aValue) const
{

  typename VariablesMap_t::const_iterator it = m_Data.find(aName);

  if (it != m_Data.end())
  {
    return it->second.getCurrentValue(aValue);
  }

  return false;
}

// =====================================================================
// =====================================================================


template <class T>
bool Variables<T>::isVariableExist(const VariableName_t aName) const
{

  return m_Data.find(aName) != m_Data.end();
}

// =====================================================================
// =====================================================================

template <class T>
bool Variables<T>::isVariableExist(const VariableName_t aName, const TimeStep_t aStep) const
{
  typename VariablesMap_t::const_iterator it;

  it = m_Data.find(aName);

  if (it != m_Data.end())
  {
    // the variable exist if the required step is strictly lesser than the variable storage next step
    return (aStep < it->second.getNextStep());
  }
  return false;

}

// =====================================================================
// =====================================================================

template <class T>
std::vector<VariableName_t> Variables<T>::getVariablesNames() const
{
  std::vector<VariableName_t> TheNames;

  typename VariablesMap_t::const_iterator it;

  for (it = m_Data.begin() ; it != m_Data.end() ; ++it)
  {
    TheNames.push_back(it->first);
  }

  return TheNames;

}


// =====================================================================
// =====================================================================


template <class T>
unsigned int Variables<T>::getVariableValuesCount(const VariableName_t aName) const
{

  typename VariablesMap_t::const_iterator it;

  it = m_Data.find(aName);

  if (it == m_Data.end()) return (-1);

  else return it->second.getNextStep();
}


// =====================================================================
// =====================================================================


template <class T>
bool Variables<T>::isAllVariablesCount(unsigned int Count) const
{
  typename VariablesMap_t::const_iterator it;

  for (it = m_Data.begin();it != m_Data.end();++it)
  {
    if (it->second.getNextStep() != Count) return false;
  }
  return true;
}


// =====================================================================
// =====================================================================


template <class T>
void Variables<T>::clear()
{
    m_Data.clear();
}


} } // namespaces




#endif /* __VARIABLES_H_ */