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// SPDX-License-Identifier: GPL-3.0-or-later
#include "libnetdata/libnetdata.h"
#include "csv.h"
void rrdr2csv(RRDR *r, BUFFER *wb, uint32_t format, RRDR_OPTIONS options, const char *startline, const char *separator, const char *endline, const char *betweenlines) {
rrdset_check_rdlock(r->st);
//info("RRD2CSV(): %s: BEGIN", r->st->id);
long c, i;
RRDDIM *d;
// print the csv header
for(c = 0, i = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue;
if(!i) {
buffer_strcat(wb, startline);
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
buffer_strcat(wb, "time");
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
}
buffer_strcat(wb, separator);
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
buffer_strcat(wb, d->name);
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
i++;
}
buffer_strcat(wb, endline);
if(format == DATASOURCE_CSV_MARKDOWN) {
// print the --- line after header
for(c = 0, i = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue;
if(!i) {
buffer_strcat(wb, startline);
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
buffer_strcat(wb, ":---:");
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
}
buffer_strcat(wb, separator);
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
buffer_strcat(wb, ":---:");
if(options & RRDR_OPTION_LABEL_QUOTES) buffer_strcat(wb, "\"");
i++;
}
buffer_strcat(wb, endline);
}
if(!i) {
// no dimensions present
return;
}
long start = 0, end = rrdr_rows(r), step = 1;
if(!(options & RRDR_OPTION_REVERSED)) {
start = rrdr_rows(r) - 1;
end = -1;
step = -1;
}
// for each line in the array
calculated_number total = 1;
for(i = start; i != end ;i += step) {
calculated_number *cn = &r->v[ i * r->d ];
RRDR_VALUE_FLAGS *co = &r->o[ i * r->d ];
buffer_strcat(wb, betweenlines);
buffer_strcat(wb, startline);
time_t now = r->t[i];
if((options & RRDR_OPTION_SECONDS) || (options & RRDR_OPTION_MILLISECONDS)) {
// print the timestamp of the line
buffer_rrd_value(wb, (calculated_number)now);
// in ms
if(options & RRDR_OPTION_MILLISECONDS) buffer_strcat(wb, "000");
}
else {
// generate the local date time
struct tm tmbuf, *tm = localtime_r(&now, &tmbuf);
if(!tm) { error("localtime() failed."); continue; }
buffer_date(wb, tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
}
int set_min_max = 0;
if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
total = 0;
for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
calculated_number n = cn[c];
if(likely((options & RRDR_OPTION_ABSOLUTE) && n < 0))
n = -n;
total += n;
}
// prevent a division by zero
if(total == 0) total = 1;
set_min_max = 1;
}
// for each dimension
for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue;
buffer_strcat(wb, separator);
calculated_number n = cn[c];
if(co[c] & RRDR_VALUE_EMPTY) {
if(options & RRDR_OPTION_NULL2ZERO)
buffer_strcat(wb, "0");
else
buffer_strcat(wb, "null");
}
else {
if(unlikely((options & RRDR_OPTION_ABSOLUTE) && n < 0))
n = -n;
if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
n = n * 100 / total;
if(unlikely(set_min_max)) {
r->min = r->max = n;
set_min_max = 0;
}
if(n < r->min) r->min = n;
if(n > r->max) r->max = n;
}
buffer_rrd_value(wb, n);
}
}
buffer_strcat(wb, endline);
}
//info("RRD2CSV(): %s: END", r->st->id);
}
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