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Copy pathrrd2json.c
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2009 lines (1637 loc) · 52.9 KB
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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "log.h"
#include "common.h"
#include "rrd2json.h"
#define HOSTNAME_MAX 1024
char *hostname = "unknown";
void rrd_stats_api_v1_chart(RRDSET *st, BUFFER *wb)
{
pthread_rwlock_rdlock(&st->rwlock);
buffer_sprintf(wb,
"\t\t{\n"
"\t\t\t\"id\": \"%s\",\n"
"\t\t\t\"name\": \"%s\",\n"
"\t\t\t\"type\": \"%s\",\n"
"\t\t\t\"family\": \"%s\",\n"
"\t\t\t\"context\": \"%s\",\n"
"\t\t\t\"title\": \"%s\",\n"
"\t\t\t\"priority\": %ld,\n"
"\t\t\t\"enabled\": %s,\n"
"\t\t\t\"units\": \"%s\",\n"
"\t\t\t\"data_url\": \"/api/v1/data?chart=%s\",\n"
"\t\t\t\"chart_type\": \"%s\",\n"
"\t\t\t\"duration\": %ld,\n"
"\t\t\t\"first_entry\": %lu,\n"
"\t\t\t\"last_entry\": %lu,\n"
"\t\t\t\"update_every\": %d,\n"
"\t\t\t\"dimensions\": {\n"
, st->id
, st->name
, st->type
, st->family
, st->context
, st->title
, st->priority
, st->enabled?"true":"false"
, st->units
, st->name
, rrdset_type_name(st->chart_type)
, st->entries * st->update_every
, rrdset_first_entry_t(st)
, rrdset_last_entry_t(st)
, st->update_every
);
unsigned long memory = st->memsize;
int c = 0;
RRDDIM *rd;
for(rd = st->dimensions; rd ; rd = rd->next) {
if(rd->flags & RRDDIM_FLAG_HIDDEN) continue;
memory += rd->memsize;
buffer_sprintf(wb,
"%s"
"\t\t\t\t\"%s\": { \"name\": \"%s\" }"
, c?",\n":""
, rd->id
, rd->name
);
c++;
}
buffer_sprintf(wb,
"\n\t\t\t}\n"
"\t\t}"
);
pthread_rwlock_unlock(&st->rwlock);
}
void rrd_stats_api_v1_charts(BUFFER *wb)
{
long c;
RRDSET *st;
buffer_sprintf(wb, "{\n"
"\t\"hostname\": \"%s\""
",\n\t\"update_every\": %d"
",\n\t\"history\": %d"
",\n\t\"charts\": {"
, hostname
, rrd_update_every
, rrd_default_history_entries
);
pthread_rwlock_rdlock(&rrdset_root_rwlock);
for(st = rrdset_root, c = 0; st ; st = st->next) {
if(st->enabled) {
if(c) buffer_strcat(wb, ",");
buffer_strcat(wb, "\n\t\t\"");
buffer_strcat(wb, st->id);
buffer_strcat(wb, "\": ");
rrd_stats_api_v1_chart(st, wb);
c++;
}
}
pthread_rwlock_unlock(&rrdset_root_rwlock);
buffer_strcat(wb, "\n\t}\n}\n");
}
unsigned long rrd_stats_one_json(RRDSET *st, char *options, BUFFER *wb)
{
time_t now = time(NULL);
pthread_rwlock_rdlock(&st->rwlock);
buffer_sprintf(wb,
"\t\t{\n"
"\t\t\t\"id\": \"%s\",\n"
"\t\t\t\"name\": \"%s\",\n"
"\t\t\t\"type\": \"%s\",\n"
"\t\t\t\"family\": \"%s\",\n"
"\t\t\t\"context\": \"%s\",\n"
"\t\t\t\"title\": \"%s\",\n"
"\t\t\t\"priority\": %ld,\n"
"\t\t\t\"enabled\": %d,\n"
"\t\t\t\"units\": \"%s\",\n"
"\t\t\t\"url\": \"/data/%s/%s\",\n"
"\t\t\t\"chart_type\": \"%s\",\n"
"\t\t\t\"counter\": %ld,\n"
"\t\t\t\"entries\": %ld,\n"
"\t\t\t\"first_entry_t\": %lu,\n"
"\t\t\t\"last_entry\": %ld,\n"
"\t\t\t\"last_entry_t\": %lu,\n"
"\t\t\t\"last_entry_secs_ago\": %lu,\n"
"\t\t\t\"update_every\": %d,\n"
"\t\t\t\"isdetail\": %d,\n"
"\t\t\t\"usec_since_last_update\": %llu,\n"
"\t\t\t\"collected_total\": " TOTAL_NUMBER_FORMAT ",\n"
"\t\t\t\"last_collected_total\": " TOTAL_NUMBER_FORMAT ",\n"
"\t\t\t\"dimensions\": [\n"
, st->id
, st->name
, st->type
, st->family
, st->context
, st->title
, st->priority
, st->enabled
, st->units
, st->name, options?options:""
, rrdset_type_name(st->chart_type)
, st->counter
, st->entries
, rrdset_first_entry_t(st)
, rrdset_last_slot(st)
, rrdset_last_entry_t(st)
, (now < rrdset_last_entry_t(st)) ? (time_t)0 : now - rrdset_last_entry_t(st)
, st->update_every
, st->isdetail
, st->usec_since_last_update
, st->collected_total
, st->last_collected_total
);
unsigned long memory = st->memsize;
RRDDIM *rd;
for(rd = st->dimensions; rd ; rd = rd->next) {
memory += rd->memsize;
buffer_sprintf(wb,
"\t\t\t\t{\n"
"\t\t\t\t\t\"id\": \"%s\",\n"
"\t\t\t\t\t\"name\": \"%s\",\n"
"\t\t\t\t\t\"entries\": %ld,\n"
"\t\t\t\t\t\"isHidden\": %d,\n"
"\t\t\t\t\t\"algorithm\": \"%s\",\n"
"\t\t\t\t\t\"multiplier\": %ld,\n"
"\t\t\t\t\t\"divisor\": %ld,\n"
"\t\t\t\t\t\"last_entry_t\": %lu,\n"
"\t\t\t\t\t\"collected_value\": " COLLECTED_NUMBER_FORMAT ",\n"
"\t\t\t\t\t\"calculated_value\": " CALCULATED_NUMBER_FORMAT ",\n"
"\t\t\t\t\t\"last_collected_value\": " COLLECTED_NUMBER_FORMAT ",\n"
"\t\t\t\t\t\"last_calculated_value\": " CALCULATED_NUMBER_FORMAT ",\n"
"\t\t\t\t\t\"memory\": %lu\n"
"\t\t\t\t}%s\n"
, rd->id
, rd->name
, rd->entries
, (rd->flags & RRDDIM_FLAG_HIDDEN)?1:0
, rrddim_algorithm_name(rd->algorithm)
, rd->multiplier
, rd->divisor
, rd->last_collected_time.tv_sec
, rd->collected_value
, rd->calculated_value
, rd->last_collected_value
, rd->last_calculated_value
, rd->memsize
, rd->next?",":""
);
}
buffer_sprintf(wb,
"\t\t\t],\n"
"\t\t\t\"memory\" : %lu\n"
"\t\t}"
, memory
);
pthread_rwlock_unlock(&st->rwlock);
return memory;
}
#define RRD_GRAPH_JSON_HEADER "{\n\t\"charts\": [\n"
#define RRD_GRAPH_JSON_FOOTER "\n\t]\n}\n"
void rrd_stats_graph_json(RRDSET *st, char *options, BUFFER *wb)
{
buffer_strcat(wb, RRD_GRAPH_JSON_HEADER);
rrd_stats_one_json(st, options, wb);
buffer_strcat(wb, RRD_GRAPH_JSON_FOOTER);
}
void rrd_stats_all_json(BUFFER *wb)
{
unsigned long memory = 0;
long c;
RRDSET *st;
buffer_strcat(wb, RRD_GRAPH_JSON_HEADER);
pthread_rwlock_rdlock(&rrdset_root_rwlock);
for(st = rrdset_root, c = 0; st ; st = st->next) {
if(st->enabled) {
if(c) buffer_strcat(wb, ",\n");
memory += rrd_stats_one_json(st, NULL, wb);
c++;
}
}
pthread_rwlock_unlock(&rrdset_root_rwlock);
buffer_sprintf(wb, "\n\t],\n"
"\t\"hostname\": \"%s\",\n"
"\t\"update_every\": %d,\n"
"\t\"history\": %d,\n"
"\t\"memory\": %lu\n"
"}\n"
, hostname
, rrd_update_every
, rrd_default_history_entries
, memory
);
}
// ----------------------------------------------------------------------------
// RRDR dimension options
#define RRDR_EMPTY 0x01 // the dimension contains / the value is empty (null)
#define RRDR_RESET 0x02 // the dimension contains / the value is reset
#define RRDR_HIDDEN 0x04 // the dimension contains / the value is hidden
#define RRDR_NONZERO 0x08 // the dimension contains / the value is non-zero
// RRDR result options
#define RRDR_RESULT_OPTION_ABSOLUTE 0x00000001
#define RRDR_RESULT_OPTION_RELATIVE 0x00000002
typedef struct rrdresult {
RRDSET *st; // the chart this result refers to
uint32_t result_options; // RRDR_RESULT_OPTION_*
int d; // the number of dimensions
long n; // the number of values in the arrays
long rows; // the number of rows used
uint8_t *od; // the options for the dimensions
time_t *t; // array of n timestamps
calculated_number *v; // array n x d values
uint8_t *o; // array n x d options
long c; // current line ( -1 ~ n ), ( -1 = none, use rrdr_rows() to get number of rows )
long group; // how many collected values were grouped for each row
long update_every; // what is the suggested update frequency in seconds
calculated_number min;
calculated_number max;
time_t before;
time_t after;
int has_st_lock; // if st is read locked by us
} RRDR;
#define rrdr_rows(r) ((r)->rows)
/*
static void rrdr_dump(RRDR *r)
{
long c, i;
RRDDIM *d;
fprintf(stderr, "\nCHART %s (%s)\n", r->st->id, r->st->name);
for(c = 0, d = r->st->dimensions; d ;c++, d = d->next) {
fprintf(stderr, "DIMENSION %s (%s), %s%s%s%s\n"
, d->id
, d->name
, (r->od[c] & RRDR_EMPTY)?"EMPTY ":""
, (r->od[c] & RRDR_RESET)?"RESET ":""
, (r->od[c] & RRDR_HIDDEN)?"HIDDEN ":""
, (r->od[c] & RRDR_NONZERO)?"NONZERO ":""
);
}
if(r->rows <= 0) {
fprintf(stderr, "RRDR does not have any values in it.\n");
return;
}
fprintf(stderr, "RRDR includes %d values in it:\n", r->rows);
// for each line in the array
for(i = 0; i < r->rows ;i++) {
calculated_number *cn = &r->v[ i * r->d ];
uint8_t *co = &r->o[ i * r->d ];
// print the id and the timestamp of the line
fprintf(stderr, "%ld %ld ", i + 1, r->t[i]);
// for each dimension
for(c = 0, d = r->st->dimensions; d ;c++, d = d->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely(!(r->od[c] & RRDR_NONZERO))) continue;
if(co[c] & RRDR_EMPTY)
fprintf(stderr, "null ");
else
fprintf(stderr, CALCULATED_NUMBER_FORMAT " %s%s%s%s "
, cn[c]
, (co[c] & RRDR_EMPTY)?"E":" "
, (co[c] & RRDR_RESET)?"R":" "
, (co[c] & RRDR_HIDDEN)?"H":" "
, (co[c] & RRDR_NONZERO)?"N":" "
);
}
fprintf(stderr, "\n");
}
}
*/
void rrdr_disable_not_selected_dimensions(RRDR *r, const char *dims)
{
char b[strlen(dims) + 1];
char *o = b, *tok;
strcpy(o, dims);
long c;
RRDDIM *d;
// disable all of them
for(c = 0, d = r->st->dimensions; d ;c++, d = d->next)
r->od[c] |= RRDR_HIDDEN;
while(o && *o && (tok = mystrsep(&o, ", |"))) {
if(!*tok) continue;
// find it and enable it
for(c = 0, d = r->st->dimensions; d ;c++, d = d->next) {
if(!strcmp(d->name, tok)) {
r->od[c] &= ~RRDR_HIDDEN;
// since the user needs this dimension
// make it appear as NONZERO, to return it
// even if the dimension has only zeros
r->od[c] |= RRDR_NONZERO;
}
}
}
}
void rrdr_buffer_print_format(BUFFER *wb, uint32_t format)
{
switch(format) {
case DATASOURCE_JSON:
buffer_strcat(wb, DATASOURCE_FORMAT_JSON);
break;
case DATASOURCE_DATATABLE_JSON:
buffer_strcat(wb, DATASOURCE_FORMAT_DATATABLE_JSON);
break;
case DATASOURCE_DATATABLE_JSONP:
buffer_strcat(wb, DATASOURCE_FORMAT_DATATABLE_JSONP);
break;
case DATASOURCE_JSONP:
buffer_strcat(wb, DATASOURCE_FORMAT_JSONP);
break;
case DATASOURCE_SSV:
buffer_strcat(wb, DATASOURCE_FORMAT_SSV);
break;
case DATASOURCE_CSV:
buffer_strcat(wb, DATASOURCE_FORMAT_CSV);
break;
case DATASOURCE_TSV:
buffer_strcat(wb, DATASOURCE_FORMAT_TSV);
break;
case DATASOURCE_HTML:
buffer_strcat(wb, DATASOURCE_FORMAT_HTML);
break;
case DATASOURCE_JS_ARRAY:
buffer_strcat(wb, DATASOURCE_FORMAT_JS_ARRAY);
break;
case DATASOURCE_SSV_COMMA:
buffer_strcat(wb, DATASOURCE_FORMAT_SSV_COMMA);
break;
default:
buffer_strcat(wb, "unknown");
break;
}
}
uint32_t rrdr_check_options(RRDR *r, uint32_t options, const char *dims)
{
if(options & RRDR_OPTION_NONZERO) {
long i;
if(dims && *dims) {
// the caller wants specific dimensions
// disable NONZERO option
// to make sure we don't accidentally prevent
// the specific dimensions from being returned
i = 0;
}
else {
// find how many dimensions are not zero
long c;
RRDDIM *rd;
for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ; c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely(!(r->od[c] & RRDR_NONZERO))) continue;
i++;
}
}
// if with nonzero we get i = 0 (no dimensions will be returned)
// disable nonzero to show all dimensions
if(!i) options &= ~RRDR_OPTION_NONZERO;
}
return options;
}
void rrdr_json_wrapper_begin(RRDR *r, BUFFER *wb, uint32_t format, uint32_t options, int string_value)
{
long rows = rrdr_rows(r);
long c, i;
RRDDIM *rd;
//info("JSONWRAPPER(): %s: BEGIN", r->st->id);
char kq[2] = "", // key quote
sq[2] = ""; // string quote
if( options & RRDR_OPTION_GOOGLE_JSON ) {
kq[0] = '\0';
sq[0] = '\'';
}
else {
kq[0] = '"';
sq[0] = '"';
}
buffer_sprintf(wb, "{\n"
" %sapi%s: 1,\n"
" %sid%s: %s%s%s,\n"
" %sname%s: %s%s%s,\n"
" %sview_update_every%s: %d,\n"
" %supdate_every%s: %d,\n"
" %sfirst_entry%s: %u,\n"
" %slast_entry%s: %u,\n"
" %sbefore%s: %u,\n"
" %safter%s: %u,\n"
" %sdimension_names%s: ["
, kq, kq
, kq, kq, sq, r->st->id, sq
, kq, kq, sq, r->st->name, sq
, kq, kq, r->update_every
, kq, kq, r->st->update_every
, kq, kq, rrdset_first_entry_t(r->st)
, kq, kq, rrdset_last_entry_t(r->st)
, kq, kq, r->before
, kq, kq, r->after
, kq, kq);
for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
if(i) buffer_strcat(wb, ", ");
buffer_strcat(wb, sq);
buffer_strcat(wb, rd->name);
buffer_strcat(wb, sq);
i++;
}
if(!i) {
#ifdef NETDATA_INTERNAL_CHECKS
error("RRDR is empty for %s (RRDR has %d dimensions, options is 0x%08x)", r->st->id, r->d, options);
#endif
rows = 0;
buffer_strcat(wb, sq);
buffer_strcat(wb, "no data");
buffer_strcat(wb, sq);
}
buffer_sprintf(wb, "],\n"
" %sdimension_ids%s: ["
, kq, kq);
for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
if(i) buffer_strcat(wb, ", ");
buffer_strcat(wb, sq);
buffer_strcat(wb, rd->id);
buffer_strcat(wb, sq);
i++;
}
if(!i) {
rows = 0;
buffer_strcat(wb, sq);
buffer_strcat(wb, "no data");
buffer_strcat(wb, sq);
}
buffer_sprintf(wb, "],\n"
" %slatest_values%s: ["
, kq, kq);
for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
if(i) buffer_strcat(wb, ", ");
i++;
storage_number n = rd->values[rrdset_last_slot(r->st)];
if(!does_storage_number_exist(n))
buffer_strcat(wb, "null");
else
buffer_rrd_value(wb, unpack_storage_number(n));
}
if(!i) {
rows = 0;
buffer_strcat(wb, "null");
}
buffer_sprintf(wb, "],\n"
" %sview_latest_values%s: ["
, kq, kq);
i = 0;
if(rows) {
for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
if(i) buffer_strcat(wb, ", ");
i++;
calculated_number *cn = &r->v[ (0) * r->d ];
uint8_t *co = &r->o[ (0) * r->d ];
if(co[c] & RRDR_EMPTY)
buffer_strcat(wb, "null");
else
buffer_rrd_value(wb, cn[c]);
}
}
if(!i) {
rows = 0;
buffer_strcat(wb, "null");
}
buffer_sprintf(wb, "],\n"
" %sdimensions%s: %d,\n"
" %spoints%s: %d,\n"
" %sformat%s: %s"
, kq, kq, i
, kq, kq, rows
, kq, kq, sq
);
rrdr_buffer_print_format(wb, format);
buffer_sprintf(wb, "%s,\n"
" %sresult%s: "
, sq
, kq, kq
);
if(string_value) buffer_strcat(wb, sq);
//info("JSONWRAPPER(): %s: END", r->st->id);
}
void rrdr_json_wrapper_end(RRDR *r, BUFFER *wb, uint32_t format, uint32_t options, int string_value)
{
if(r) {;}
if(format) {;}
char kq[2] = "", // key quote
sq[2] = ""; // string quote
if( options & RRDR_OPTION_GOOGLE_JSON ) {
kq[0] = '\0';
sq[0] = '\'';
}
else {
kq[0] = '"';
sq[0] = '"';
}
if(string_value) buffer_strcat(wb, sq);
buffer_sprintf(wb, ",\n %smin%s: ", kq, kq);
buffer_rrd_value(wb, r->min);
buffer_sprintf(wb, ",\n %smax%s: ", kq, kq);
buffer_rrd_value(wb, r->max);
buffer_strcat(wb, "\n}\n");
}
#define JSON_DATES_JS 1
#define JSON_DATES_TIMESTAMP 2
static void rrdr2json(RRDR *r, BUFFER *wb, uint32_t options, int datatable)
{
//info("RRD2JSON(): %s: BEGIN", r->st->id);
int row_annotations = 0, dates, dates_with_new = 0;
char kq[2] = "", // key quote
sq[2] = "", // string quote
pre_label[101] = "", // before each label
post_label[101] = "", // after each label
pre_date[101] = "", // the beginning of line, to the date
post_date[101] = "", // closing the date
pre_value[101] = "", // before each value
post_value[101] = "", // after each value
post_line[101] = "", // at the end of each row
normal_annotation[201] = "", // default row annotation
overflow_annotation[201] = "", // overflow row annotation
data_begin[101] = "", // between labels and values
finish[101] = ""; // at the end of everything
if(datatable) {
dates = JSON_DATES_JS;
if( options & RRDR_OPTION_GOOGLE_JSON ) {
kq[0] = '\0';
sq[0] = '\'';
}
else {
kq[0] = '"';
sq[0] = '"';
}
row_annotations = 1;
snprintf(pre_date, 100, " {%sc%s:[{%sv%s:%s", kq, kq, kq, kq, sq);
snprintf(post_date, 100, "%s}", sq);
snprintf(pre_label, 100, ",\n {%sid%s:%s%s,%slabel%s:%s", kq, kq, sq, sq, kq, kq, sq);
snprintf(post_label, 100, "%s,%spattern%s:%s%s,%stype%s:%snumber%s}", sq, kq, kq, sq, sq, kq, kq, sq, sq);
snprintf(pre_value, 100, ",{%sv%s:", kq, kq);
snprintf(post_value, 100, "}");
snprintf(post_line, 100, "]}");
snprintf(data_begin, 100, "\n ],\n %srows%s:\n [\n", kq, kq);
snprintf(finish, 100, "\n ]\n}");
snprintf(overflow_annotation, 200, ",{%sv%s:%sRESET OR OVERFLOW%s},{%sv%s:%sThe counters have been wrapped.%s}", kq, kq, sq, sq, kq, kq, sq, sq);
snprintf(normal_annotation, 200, ",{%sv%s:null},{%sv%s:null}", kq, kq, kq, kq);
buffer_sprintf(wb, "{\n %scols%s:\n [\n", kq, kq, kq, kq);
buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%stime%s,%spattern%s:%s%s,%stype%s:%sdatetime%s},\n", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq);
buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%s%s,%spattern%s:%s%s,%stype%s:%sstring%s,%sp%s:{%srole%s:%sannotation%s}},\n", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, kq, kq, sq, sq);
buffer_sprintf(wb, " {%sid%s:%s%s,%slabel%s:%s%s,%spattern%s:%s%s,%stype%s:%sstring%s,%sp%s:{%srole%s:%sannotationText%s}}", kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, sq, sq, kq, kq, kq, kq, sq, sq);
// remove the valueobjects flag
// google wants its own keys
if(options & RRDR_OPTION_OBJECTSROWS)
options &= ~RRDR_OPTION_OBJECTSROWS;
}
else {
kq[0] = '"';
sq[0] = '"';
if((options & RRDR_OPTION_SECONDS) || (options & RRDR_OPTION_MILLISECONDS)) {
dates = JSON_DATES_TIMESTAMP;
dates_with_new = 0;
}
else {
dates = JSON_DATES_JS;
dates_with_new = 1;
}
if( options & RRDR_OPTION_OBJECTSROWS )
snprintf(pre_date, 100, " { ");
else
snprintf(pre_date, 100, " [ ");
snprintf(pre_label, 100, ", \"");
snprintf(post_label, 100, "\"");
snprintf(pre_value, 100, ", ");
if( options & RRDR_OPTION_OBJECTSROWS )
snprintf(post_line, 100, "}");
else
snprintf(post_line, 100, "]");
snprintf(data_begin, 100, "],\n %sdata%s:\n [\n", kq, kq);
snprintf(finish, 100, "\n ]\n}");
buffer_sprintf(wb, "{\n %slabels%s: [", kq, kq);
buffer_sprintf(wb, "%stime%s", sq, sq);
}
// -------------------------------------------------------------------------
// print the JSON header
long c, i;
RRDDIM *rd;
// print the header lines
for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
buffer_strcat(wb, pre_label);
buffer_strcat(wb, rd->name);
buffer_strcat(wb, post_label);
i++;
}
if(!i) {
buffer_strcat(wb, pre_label);
buffer_strcat(wb, "no data");
buffer_strcat(wb, post_label);
}
// print the begin of row data
buffer_strcat(wb, data_begin);
// if all dimensions are hidden, print a null
if(!i) {
buffer_strcat(wb, finish);
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 ];
uint8_t *co = &r->o[ i * r->d ];
time_t now = r->t[i];
if(dates == JSON_DATES_JS) {
// generate the local date time
struct tm tmbuf, *tm = localtime_r(&now, &tmbuf);
if(!tm) { error("localtime_r() failed."); continue; }
if(likely(i != start)) buffer_strcat(wb, ",\n");
buffer_strcat(wb, pre_date);
if( options & RRDR_OPTION_OBJECTSROWS )
buffer_sprintf(wb, "%stime%s: ", kq, kq);
if(dates_with_new)
buffer_strcat(wb, "new ");
buffer_jsdate(wb, tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
buffer_strcat(wb, post_date);
if(row_annotations) {
// google supports one annotation per row
int annotation_found = 0;
for(c = 0, rd = r->st->dimensions; rd ;c++, rd = rd->next) {
if(co[c] & RRDR_RESET) {
buffer_strcat(wb, overflow_annotation);
annotation_found = 1;
break;
}
}
if(!annotation_found)
buffer_strcat(wb, normal_annotation);
}
}
else {
// print the timestamp of the line
if(likely(i != start)) buffer_strcat(wb, ",\n");
buffer_strcat(wb, pre_date);
if( options & RRDR_OPTION_OBJECTSROWS )
buffer_sprintf(wb, "%stime%s: ", kq, kq);
buffer_rrd_value(wb, (calculated_number)r->t[i]);
// in ms
if(options & RRDR_OPTION_MILLISECONDS) buffer_strcat(wb, "000");
buffer_strcat(wb, post_date);
}
if(unlikely(options & RRDR_OPTION_PERCENTAGE)) {
total = 0;
for(c = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->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;
}
// for each dimension
for(c = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
calculated_number n = cn[c];
buffer_strcat(wb, pre_value);
if( options & RRDR_OPTION_OBJECTSROWS )
buffer_sprintf(wb, "%s%s%s: ", kq, rd->name, kq);
if(co[c] & RRDR_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;
buffer_rrd_value(wb, n);
}
buffer_strcat(wb, post_value);
}
buffer_strcat(wb, post_line);
}
buffer_strcat(wb, finish);
//info("RRD2JSON(): %s: END", r->st->id);
}
static void rrdr2csv(RRDR *r, BUFFER *wb, uint32_t options, const char *startline, const char *separator, const char *endline, const char *betweenlines)
{
//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_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_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(!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 ];
uint8_t *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, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
}
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;
}
// for each dimension
for(c = 0, d = r->st->dimensions; d && c < r->d ;c++, d = d->next) {
if(unlikely(r->od[c] & RRDR_HIDDEN)) continue;
if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_NONZERO))) continue;
buffer_strcat(wb, separator);
calculated_number n = cn[c];
if(co[c] & RRDR_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;
buffer_rrd_value(wb, n);
}
}
buffer_strcat(wb, endline);
}
//info("RRD2CSV(): %s: END", r->st->id);
}
static void rrdr2ssv(RRDR *r, BUFFER *wb, uint32_t options, const char *prefix, const char *separator, const char *suffix)
{
//info("RRD2SSV(): %s: BEGIN", r->st->id);
long c, i;
RRDDIM *d;
buffer_strcat(wb, prefix);
long start = 0, end = rrdr_rows(r), step = 1;
if((options & RRDR_OPTION_REVERSED)) {
start = rrdr_rows(r) - 1;
end = -1;
step = -1;
}