void cb_per_line(int separator, struct cb_data* data) {
if ((!data->unsafe) && (data->column != data->table_columns)) {
throw CSVLoaderError("Less data than columns");
}
data->row++;
data->column = 0;
}
void cb_per_field(char *field_buffer, size_t field_length, struct cb_data *data) {
if (data->column >= data->table_columns) {
if (data->unsafe) goto ignore_data;
else throw CSVLoaderError("There is more data than columns!");
}
switch (data->table->typeOfColumn(data->column)) {
case IntegerType:
data->table->setValue<hyrise_int_t>(data->column, data->row, atol(field_buffer));
break;
case FloatType:
data->table->setValue<hyrise_float_t>(data->column, data->row, atof(field_buffer));
break;
case StringType:
data->table->setValue<hyrise_string_t>(data->column, data->row, std::string(field_buffer));
break;
default:
throw std::runtime_error("FUUUU");
break;
}
ignore_data:
++data->column;
}
bool detectHeader(const std::string& filename) {
// Take a peak into file to check wether it features a header
std::ifstream file(filename);
if (file.fail()) {
throw CSVLoaderError("File '" + filename + "' does not exist");
}
std::string line;
for (int i = 0; i < 4; ++i)
getline(file, line);
return "===" == line;
}