FileReader.h

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/* Copyright 2016 Kristofer Björnson and Andreas Theiler
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef COM_DAFER45_TBTK_FILE_READER
#define COM_DAFER45_TBTK_FILE_READER

#include "TBTK/HoppingAmplitudeSet.h"
#include "TBTK/Geometry.h"
#include "TBTK/Model.h"
#include "TBTK/ParameterSet.h"
#include "TBTK/Property/EigenValues.h"
#include "TBTK/Property/DOS.h"
#include "TBTK/Property/Density.h"
#include "TBTK/Property/Magnetization.h"
#include "TBTK/Property/LDOS.h"
#include "TBTK/Property/SpectralFunction.h"
#include "TBTK/Property/SpinPolarizedLDOS.h"
#include "TBTK/Property/WaveFunctions.h"

#include <fstream>
#include <stdio.h>

namespace TBTK{

class FileReader{
public:
    static Model* readModel(
        std::string name = "Model",
        std::string path = "/"
    );

    static HoppingAmplitudeSet* readHoppingAmplitudeSet(
        std::string name = "HoppingAmplitudeSet",
        std::string path = "/"
    );

    static Geometry* readGeometry(
        Model *model,
        std::string name = "Geometry",
        std::string path = "/"
    );

    static IndexTree* readIndexTree(
        std::string name = "IndexTree",
        std::string path = "/"
    );

    static Property::EigenValues* readEigenValues(
        std::string name = "EigenValues",
        std::string path = "/"
    );

    static Property::WaveFunctions* readWaveFunctions(
        std::string name = "WaveFunctions",
        std::string pat = "/"
    );

    static Property::DOS* readDOS(
        std::string name = "DOS",
        std::string path = "/"
    );

    static Property::Density* readDensity(
        std::string name = "Density",
        std::string path = "/"
    );

    static Property::Magnetization* readMagnetization(
        std::string name = "Magnetization",
        std::string path = "/"
    );

    static Property::LDOS* readLDOS(
        std::string name = "LDOS",
        std::string path = "/"
    );

    static Property::SpectralFunction* readSpectralFunction(
        std::string name = "SpectralFunction",
        std::string path = "/"
    );

    static Property::SpinPolarizedLDOS* readSpinPolarizedLDOS(
        std::string name = "SpinPolarizedLDOS",
        std::string path = "/"
    );

    static ParameterSet* readParameterSet(
        std::string name = "ParameterSet",
        std::string path = "/"
    );

    static void read(
        int **data,
        int *rank,
        int **dims,
        std::string name,
        std::string path = "/"
    );

    static void read(
        double **data,
        int *rank,
        int **dims,
        std::string name,
        std::string path = "/"
    );

    static void read(
        std::complex<double> **data,
        int *rank,
        int **dims,
        std::string name,
        std::string path = "/"
    );

    static void readAttributes(
        int *attributes,
        std::string *attribute_names,
        int num,
        std::string name,
        std::string path = "/"
    );

    static void readAttributes(
        double *attributes,
        std::string *attribute_names,
        int num,
        std::string name,
        std::string path = "/"
    );

    static void setFileName(std::string filename);

    static void clear();

    static bool exists();
private:
    static bool isInitialized;

    static std::string filename;
};

inline Property::SpectralFunction* FileReader::readSpectralFunction(
    std::string name,
    std::string path
){
    return reinterpret_cast<Property::SpectralFunction*>(readLDOS(name, path));
}

inline void FileReader::setFileName(std::string filename){
    FileReader::filename = filename;
    isInitialized = false;
}

inline void FileReader::clear(){
    remove(filename.c_str());
    isInitialized = false;
}

};  //End of namespace TBTK

#endif