MueLu_FineLevelInputDataFactory_def.hpp

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#ifndef PACKAGES_MUELU_SRC_MISC_MUELU_FINELEVELINPUTDATAFACTORY_DEF_HPP_
#define PACKAGES_MUELU_SRC_MISC_MUELU_FINELEVELINPUTDATAFACTORY_DEF_HPP_

#include "Xpetra_Matrix.hpp"

#include "MueLu_FineLevelInputDataFactory_decl.hpp"
#include "MueLu_FactoryManagerBase.hpp"
#include "MueLu_Level.hpp"
#include "MueLu_Monitor.hpp"

namespace MueLu {

  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
  RCP<const ParameterList> FineLevelInputDataFactory<Scalar, LocalOrdinal, GlobalOrdinal, Node>::GetValidParameterList() const {
    RCP<ParameterList> validParamList = rcp(new ParameterList());

    // Variable name (e.g. A or P or Coordinates)
    validParamList->set< std::string >("Variable", std::string("A"), "Variable name on all coarse levels (except the finest level).");

    // Names of generating factories (on finest level and coarse levels)
    validParamList->set< RCP<const FactoryBase> >("Fine level factory", Teuchos::null, "Generating factory of the fine level variable");
    validParamList->set< RCP<const FactoryBase> >("Coarse level factory", Teuchos::null, "Generating factory for data on all coarse levels (except the finest)");

    // Type of variable (see source code for a complete list of all available types)
    validParamList->set<std::string> ("Variable type", std::string("Matrix"), "Type of variable");

    return validParamList;
  }

  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
  void FineLevelInputDataFactory<Scalar, LocalOrdinal, GlobalOrdinal, Node>::DeclareInput(Level& currentLevel) const {

    const ParameterList & pL = GetParameterList();

    std::string variableName = "";
    if(pL.isParameter("Variable"))
      variableName = pL.get<std::string>("Variable");

    std::string factoryName  = "NoFactory";
    if (currentLevel.GetLevelID() == 0) {
      factoryName = "Fine level factory";
    } else {
      factoryName = "Coarse level factory";
    }

    TEUCHOS_TEST_FOR_EXCEPTION(variableName == "", MueLu::Exceptions::RuntimeError, "FineLevelInputDataFactory: no variable name provided. Please set \'Variable\' parameter in your input deck.");

    // data must be specified in factory! (not in factory manager)
    RCP<const FactoryBase> fact = GetFactory(factoryName);
    currentLevel.DeclareInput(variableName, fact.get(), this);
  }

  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
  void FineLevelInputDataFactory<Scalar, LocalOrdinal, GlobalOrdinal, Node>::Build(Level& currentLevel) const {
    FactoryMonitor m(*this, "InputUserData", currentLevel);

    const ParameterList& pL = GetParameterList();

    std::string variableName       = "";
    if (pL.isParameter("Variable"))
      variableName = pL.get<std::string>("Variable");

    std::string variableType = "";
    if(pL.isParameter("Variable type"))
      variableType = pL.get<std::string>("Variable type");

    std::string factoryName        = "NoFactory";
    if (currentLevel.GetLevelID() == 0) {
      factoryName        = "Fine level factory";
    } else {
      factoryName        = "Coarse level factory";
    }
    RCP<const FactoryBase> fact = GetFactory(factoryName);

    GetOStream(Debug) << "Use " << variableName << " of type " << variableType << " from " << factoryName << "(" << fact.get() << ")" << std::endl;

    // check data type
    //std::string strType = currentLevel.GetTypeName(variableName, fact.get());
    if        (variableType == "int") {
      int data = currentLevel.Get<int>(variableName, fact.get());
      Set(currentLevel, variableName, data);
    } else if (variableType == "double") {
      double data = currentLevel.Get<double>(variableName, fact.get());
      Set(currentLevel, variableName, data);
    } else if (variableType == "string") {
      std::string data = currentLevel.Get<std::string>(variableName, fact.get());
      Set(currentLevel, variableName, data);
    } else {
      size_t npos = std::string::npos;

      if      (variableType.find("Aggregates") != npos) {
        RCP<Aggregates> data = currentLevel.Get<RCP<Aggregates> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("Graph") != npos) {
        RCP<Graph> data = currentLevel.Get<RCP<Graph> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("SmootherBase") != npos) {
        RCP<SmootherBase> data = currentLevel.Get<RCP<SmootherBase> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("SmootherPrototype") != npos) {
        RCP<SmootherPrototype> data = currentLevel.Get<RCP<SmootherPrototype> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("Export") != npos) {
        RCP<Export> data = currentLevel.Get<RCP<Export> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("Import") != npos) {
        RCP<Import> data = currentLevel.Get<RCP<Import> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("Map") != npos) {
        RCP<Map> data = currentLevel.Get<RCP<Map> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("Matrix") != npos) {
        RCP<Matrix> data = currentLevel.Get<RCP<Matrix> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("MultiVector") != npos) {
        RCP<MultiVector> data = currentLevel.Get<RCP<MultiVector> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else if (variableType.find("Operator") != npos) {
        RCP<Operator> data = currentLevel.Get<RCP<Operator> >(variableName, fact.get());
        Set(currentLevel, variableName, data);
      }
      else {
        // TAW: is this working with empty procs?
        TEUCHOS_TEST_FOR_EXCEPTION(true, MueLu::Exceptions::RuntimeError, "FineLevelInputDataFactory: cannot detect type of variable " << variableName << " generated by " << fact.get() << ". User provided type " << variableType );
      }
    }
  }

} //namespace MueLu

#endif /* PACKAGES_MUELU_SRC_MISC_MUELU_FINELEVELINPUTDATAFACTORY_DEF_HPP_ */