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CSVreaderModule.cpp
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CSVreaderModule.cpp
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#include "CSVreaderModule.h"
#include <string>
#include <iostream>
#define STRINGLENGTH 5000
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 übergeben.. dann
// kann man nämlich 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;
}
CSVreaderModule::CSVreaderModule() {
set_name(NO_NAME);
flag_csv_reader_configured = false;
}
CSVreaderModule::CSVreaderModule(const 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(const 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: überarbeiten 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;
// TODO: make delimiter configurable!
ptr = strtok(readrow, ",;");
// 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 {
ptr = strtok(NULL, ",;");
}
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++) {
ptr = strtok(NULL, ",;");
}
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: überarbeiten 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;
// TODO: make delimiter configurable!
ptr = strtok(readrow, ",;");
for (unsigned int d_ix = 1; d_ix < column; d_ix++) {
ptr = strtok(NULL, ",;");
}
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;
}
// TODO: flag_csv_reader_configured abfragen
void CSVreaderModule::close_file() { fclose(fpointer); }

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