Program Listing for File NuMagSANSlib_StructureDataExplorer.h

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// File         : NuMagSANSlib_MagDataObserver.h
// Author       : Michael Philipp ADAMS, M.Sc.
// Company      : University of Luxembourg
// Department   : Department of Physics and Materials Sciences
// Group        : NanoMagnetism Group
// Group Leader : Prof. Andreas Michels
// Version      : 23 October 2024
// OS           : Linux Ubuntu
// Language     : CUDA C++

#include <iostream>
#include <fstream>
#include <sstream>
#include <sys/stat.h>
#include <sys/types.h>
#include <math.h>
#include <string>
#include <vector>
#include <stdlib.h>
#include <time.h>
#include <cuda_runtime.h>
#include <cublas_v2.h>
#include <stdexcept>
#include <math.h>
#include <chrono>
#include <dirent.h>
#include <unistd.h>
#include <limits.h>

using namespace std;

struct StructDataProperties{

    string GlobalFilePath;

    int Number_Of_Elements;

};

// ###############################################################################################################################################
// helper functions ##############################################################################################################################
// ###############################################################################################################################################

void get_GlobalStructDataPath(std::string Local_StructDataPath, StructDataProperties* StructDataProp){

    char tmp[PATH_MAX];
    getcwd(tmp, PATH_MAX);  // Get the current working directory
    std::string tmp_string = tmp;
    //StructDataProp->GlobalFilePath = tmp_string + "/" + Local_StructDataPath;
    StructDataProp->GlobalFilePath = Local_StructDataPath;
    cout << "found Global StructDataPath: " << StructDataProp->GlobalFilePath << "\n\n";

}

void NumberOfEntriesInStructureFile(int *NumberOfColumns, string filename){

    ifstream fin;
    fin.open(filename);
    std::string line;

    float x, y, z;

    int line_counter = 0;
    int error_counter = 0;

    while(std::getline(fin, line)){
        std::istringstream ss(line);
        if(ss >> x >> y >> z){
            line_counter += 1;
        } else{
            error_counter ++;
        }
    }
    fin.close();
    *NumberOfColumns = line_counter;

}

// Routine that checks number of subfolders in MagData directory
bool StructData_Observer(std::string Local_StructDataPath, StructDataProperties*StructDataProp){

    cout << "##########################################################################################" << "\n";
    cout << "## Run - Structure File Explorer #########################################################" << "\n";
    cout << "##########################################################################################" << "\n\n";

    bool CheckFlag = false;

    // get global path of the MagData directory
    get_GlobalStructDataPath(Local_StructDataPath, StructDataProp);

    // count number of entries in the structure data file
    NumberOfEntriesInStructureFile(&StructDataProp->Number_Of_Elements, StructDataProp->GlobalFilePath);
    cout << "Number of Entries: " << StructDataProp->Number_Of_Elements << "\n\n";


    cout << "##########################################################################################" << "\n";
    cout << "## Stop - Structure File Explorer ########################################################" << "\n";
    cout << "##########################################################################################" << "\n\n\n\n";

    if(StructDataProp->Number_Of_Elements != 0){
        CheckFlag = true;
    }

    return CheckFlag;

}