AbstractConductivityModifier.hpp

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*/

#ifndef ABSTRACTCONDUCTIVITYMODIFIER_HPP_
#define ABSTRACTCONDUCTIVITYMODIFIER_HPP_

#include "UblasCustomFunctions.hpp"

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class AbstractConductivityModifier
{
private:
    std::vector<std::pair<unsigned, c_matrix<double,SPACE_DIM,SPACE_DIM> > > mCache;

public:
    virtual ~AbstractConductivityModifier()
    {
    }

    c_matrix<double,SPACE_DIM,SPACE_DIM>& rGetModifiedConductivityTensor(unsigned elementIndex,
                                                                         const c_matrix<double,SPACE_DIM,SPACE_DIM>& rOriginalConductivity,
                                                                         unsigned domainIndex)
    {
        // Have we got space for this domain?
        if (mCache.size() <= domainIndex)
        {
            // Not a pretty line! Initialises every new entry with an UNSIGNED_UNSET and a zero matrix.
            mCache.resize(domainIndex+1, std::pair<unsigned, c_matrix<double,SPACE_DIM,SPACE_DIM> >
                                             (UNSIGNED_UNSET, zero_matrix<double>(SPACE_DIM,SPACE_DIM)));
        }
        // Is this not the same element as last time?
        if (mCache[domainIndex].first != elementIndex)
        {
            mCache[domainIndex].first = elementIndex;
            mCache[domainIndex].second = rCalculateModifiedConductivityTensor(elementIndex, rOriginalConductivity, domainIndex);
        }
        // Return cached tensor
        return mCache[domainIndex].second;
    }

    virtual c_matrix<double,SPACE_DIM,SPACE_DIM>& rCalculateModifiedConductivityTensor(unsigned elementIndex,
                                                                                       const c_matrix<double,SPACE_DIM,SPACE_DIM>& rOriginalConductivity,
                                                                                       unsigned domainIndex)=0;
};


#endif /* ABSTRACTCONDUCTIVITYMODIFIER_HPP_ */