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CSVreaderModule.cpp
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CSVreaderModule.cpp
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#include "CSVreaderModule.h"
#include "file_util.h"
#include <string>
#include <string.h>
#include <iostream>
#define STRINGLENGTH 5000
/*
void CSV_Reader :: initialize_csvreader(char* filepath_read, unsigned int num_of_datasets, unsigned int* list_of_datasets, unsigned int start_row) {
//fpointer_read = fopen(filepath_read, "r");
fopen_s(&fpointer_read, filepath_read, "r");
this->num_of_datasets = num_of_datasets;
//TODO: sort.. falls es nicht in aufsteigender folge kommt
for(unsigned int d_ix=0; d_ix<num_of_datasets; d_ix++) {
this->list_of_datasets[d_ix] = list_of_datasets[d_ix];
}
row = 1;
this->start_row = start_row;
}
*/
void CSVreaderModule :: initialize_csvreader(FILE* fpointer, unsigned int column, unsigned int start_row) {
//fpointer_read = fopen(filepath_read, "r");
//TODO: file ponter schon aus CSV-Reader Creator Funktion �bergeben.. dann kann man n�mlich ausgeben, wenn da was nicht erstellt werden kann
//bool file_opened = fopen_s(&fpointer_read, filepath_read, "r");
//TODO: etwas mit flag
this->fpointer = fpointer;
this->row = 1;
this->column = column;
this->start_row = start_row;
flag_csv_reader_configured = true;
}
/*
CSV_Reader :: CSV_Reader(char* filepath_read, unsigned int num_of_data_sets, unsigned int* list_of_datasets, unsigned int start_row) {
set_name(NO_NAME);
initialize_csvreader(filepath_read, num_of_data_sets, list_of_datasets, start_row);
}
CSV_Reader :: CSV_Reader(char* name, char* filepath_read, unsigned int num_of_data_sets, unsigned int* list_of_datasets, unsigned int start_row) {
set_name(name);
initialize_csvreader(filepath_read, num_of_data_sets, list_of_datasets, start_row);
}
*/
CSVreaderModule :: CSVreaderModule() {
set_name(NO_NAME);
flag_csv_reader_configured = false;
}
CSVreaderModule :: CSVreaderModule(char* name) {
set_name(name);
flag_csv_reader_configured = false;
}
CSVreaderModule :: CSVreaderModule(FILE* fpointer, unsigned int column, unsigned int start_row) {
set_name(NO_NAME);
if(fpointer) {
initialize_csvreader(fpointer, column, start_row);
}
else {
flag_csv_reader_configured = false;
}
}
CSVreaderModule :: CSVreaderModule(char* name, FILE* fpointer, unsigned int column, unsigned int start_row) {
set_name(name);
if(fpointer) {
initialize_csvreader(fpointer, column, start_row);
}
else {
flag_csv_reader_configured = false;
}
}
/*
CSV_Reader :: CSV_Reader(char* name, char* filepath_read, int column, int start_row) {
}
*/
//XXX: Wird nicht mehr benutzt
//TODO: �berarbeiten nach folgendem Beispiel https://msdn.microsoft.com/en-us/library/ftsafwz3.aspx
bool CSVreaderModule :: read_one_row() {
if(fpointer)
{
char readrow[STRINGLENGTH] = "", electedfield[STRINGLENGTH] = "";
//TODO: move following for-loop to "initialize_csvreader(...)
for(;row<start_row; row++) {
if(!fgets(readrow, STRINGLENGTH, fpointer))
return false;
}
if(fgets (readrow, STRINGLENGTH, fpointer))
{
char *ptr, *next_ptr;
//TODO: make delimiter configurable!
#ifdef WINDOWS_OS
ptr = strtok_s(readrow, ",;", &next_ptr); //windows version
#elif !WINDOWS_OS
ptr = strtok_r(readrow, ",;", &next_ptr);
#endif
//OLD: unsigned int dataset_counter = 0;
dataset_counter = 0;
if(list_of_datasets[dataset_counter] == 1) {
data_read[dataset_counter] = std::stof(ptr, NULL);
dataset_counter++;
}
else {
#ifdef WINDOWS_OS
ptr = strtok_s(NULL, ",;", &next_ptr); //windows version
#elif !WINDOWS_OS
ptr = strtok_r(NULL, ",;", &next_ptr);
#endif
}
for(;dataset_counter<num_of_datasets;dataset_counter++) {
for(unsigned int c_ix=list_of_datasets[dataset_counter-1]; c_ix<list_of_datasets[dataset_counter]; c_ix++)
{
#ifdef WINDOWS_OS
ptr = strtok_s(NULL, ",;", &next_ptr); //windows version
#elif !WINDOWS_OS
ptr = strtok_r(NULL, ",;", &next_ptr);
#endif
}
data_read[dataset_counter] = std::stof(ptr, NULL);
}
return true;
}
}
return false;
}
float CSVreaderModule :: get_value_of_field(unsigned int field) {
//TODO: Bessere Fehlerbehandlung.. also nciht einfach 0 returnen, wenn kein richtiges FEld!!!
if(field < num_of_datasets) {
return data_read[field];
}
return 0.0;
}
//TODO: �berarbeiten nach folgendem Beispiel https://msdn.microsoft.com/en-us/library/ftsafwz3.aspx
bool CSVreaderModule :: read_field() {
if(fpointer)
{
char readrow[STRINGLENGTH] = "", electedfield[STRINGLENGTH] = "";
//TODO: move following for-loop to "initialize_csvreader(...)
for(;row<start_row; row++) {
if(!fgets(readrow, STRINGLENGTH, fpointer))
return false;
}
if(fgets (readrow, STRINGLENGTH, fpointer))
{
char *ptr, *next_ptr;
//TODO: make delimiter configurable!
#ifdef WINDOWS_OS
ptr = strtok_s(readrow, ",;", &next_ptr); //windows version
#elif !WINDOWS_OS
ptr = strtok_r(readrow, ",;", &next_ptr);
#endif
for(unsigned int d_ix=1; d_ix<column; d_ix++) {
#ifdef WINDOWS_OS
ptr = strtok_s(NULL, ",;", &next_ptr); //windows version
#elif !WINDOWS_OS
ptr = strtok_r(NULL, ",;", &next_ptr);
#endif
}
input_data = std::stof(ptr, NULL);
return true;
}
}
return false;
}
bool CSVreaderModule :: get_next_value(float* value) {
if(flag_csv_reader_configured) {
if(read_field()) {
*value = input_data;
return true;
}
}
return false;
}
void CSVreaderModule :: reset_row(const int row)
{
this->row = row;
}
void CSVreaderModule:: set_position_fpointer_to_start()
{
long int cur_pos;
if(this->fpointer) {
cur_pos = ftell(this->fpointer);
rewind(this->fpointer);
}
}
//TODO: flag_csv_reader_configured abfragen
void CSVreaderModule :: close_file() {
fclose(fpointer);
}
CSVreaderModule :: ~CSVreaderModule(){
if(fpointer) {
close_file();
}
}

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CSVreaderModule.cpp (5 KB)

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