lsReader.hpp

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#pragma once
 
#include <fstream>
 
#include <lsDomain.hpp>
#include <lsPreCompileMacros.hpp>
#include <utility>
 
namespace viennals {
 
using namespace viennacore;
 
template <class T, int D> class Reader {
  SmartPointer<Domain<T, D>> levelSet = nullptr;
  std::string fileName;
 
public:
  Reader() = default;
 
  Reader(SmartPointer<Domain<T, D>> passedLevelSet)
      : levelSet(passedLevelSet) {}
 
  Reader(SmartPointer<Domain<T, D>> passedLevelSet, std::string passedFileName)
      : levelSet(passedLevelSet), fileName(std::move(passedFileName)) {}
 
  void setLevelSet(SmartPointer<Domain<T, D>> passedLevelSet) {
    levelSet = passedLevelSet;
  }

  void setFileName(std::string passedFileName) {
    fileName = std::move(passedFileName);
  }
 
  void apply() {
    // check mesh
    if (levelSet == nullptr) {
      Logger::getInstance()
          .addWarning("No mesh was passed to Reader. Not writing.")
          .print();
      return;
    }
    // check filename
    if (fileName.empty()) {
      Logger::getInstance()
          .addWarning("No file name specified for Reader. Not writing.")
          .print();
      return;
    }
    if (fileName.find(".lvst") != fileName.length() - 5) {
      Logger::getInstance()
          .addWarning("File name does not end in '.lvst', appending it.")
          .print();
      fileName.append(".lvst");
    }
 
    // Open file for writing and save serialized level set in it
    std::ifstream fin(fileName, std::ios::binary);
 
    levelSet->deserialize(fin);
 
    fin.close();
  }
};
 
// add all template specialisations for this class
PRECOMPILE_PRECISION_DIMENSION(Reader)
 
} // namespace viennals