154 lines
4.3 KiB
C
154 lines
4.3 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "rrdset2json.h"
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void chart_labels2json(RRDSET *st, BUFFER *wb, size_t indentation)
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{
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if(unlikely(!st->state || !st->state->chart_labels))
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return;
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char tabs[11];
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if (indentation > 10)
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indentation = 10;
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tabs[0] = '\0';
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while (indentation) {
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strcat(tabs, "\t\t");
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indentation--;
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}
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rrdlabels_to_buffer(st->state->chart_labels, wb, tabs, ":", "\"", ",\n", NULL, NULL, NULL, NULL);
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buffer_strcat(wb, "\n");
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}
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// generate JSON for the /api/v1/chart API call
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void rrdset2json(RRDSET *st, BUFFER *wb, size_t *dimensions_count, size_t *memory_used, int skip_volatile) {
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rrdset_rdlock(st);
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time_t first_entry_t = rrdset_first_entry_t_nolock(st);
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time_t last_entry_t = rrdset_last_entry_t_nolock(st);
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buffer_sprintf(
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wb,
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"\t\t{\n"
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"\t\t\t\"id\": \"%s\",\n"
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"\t\t\t\"name\": \"%s\",\n"
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"\t\t\t\"type\": \"%s\",\n"
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"\t\t\t\"family\": \"%s\",\n"
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"\t\t\t\"context\": \"%s\",\n"
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"\t\t\t\"title\": \"%s (%s)\",\n"
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"\t\t\t\"priority\": %ld,\n"
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"\t\t\t\"plugin\": \"%s\",\n"
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"\t\t\t\"module\": \"%s\",\n"
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"\t\t\t\"units\": \"%s\",\n"
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"\t\t\t\"data_url\": \"/api/v1/data?chart=%s\",\n"
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"\t\t\t\"chart_type\": \"%s\",\n",
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rrdset_id(st),
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rrdset_name(st),
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rrdset_type(st),
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rrdset_family(st),
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rrdset_context(st),
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rrdset_title(st),
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rrdset_name(st),
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st->priority,
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rrdset_plugin_name(st),
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rrdset_module_name(st),
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rrdset_units(st),
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rrdset_name(st),
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rrdset_type_name(st->chart_type));
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if (likely(!skip_volatile))
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buffer_sprintf(
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wb,
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"\t\t\t\"duration\": %"PRId64",\n",
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(int64_t)(last_entry_t - first_entry_t + st->update_every) //st->entries * st->update_every
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);
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buffer_sprintf(
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wb,
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"\t\t\t\"first_entry\": %"PRId64",\n",
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(int64_t)first_entry_t //rrdset_first_entry_t(st)
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);
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if (likely(!skip_volatile))
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buffer_sprintf(
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wb,
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"\t\t\t\"last_entry\": %"PRId64",\n",
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(int64_t)last_entry_t //rrdset_last_entry_t(st)
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);
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buffer_sprintf(
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wb,
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"\t\t\t\"update_every\": %d,\n"
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"\t\t\t\"dimensions\": {\n",
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st->update_every);
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unsigned long memory = sizeof(RRDSET) + st->memsize;
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size_t dimensions = 0;
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RRDDIM *rd;
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rrddim_foreach_read(rd, st) {
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if(rrddim_flag_check(rd, RRDDIM_FLAG_HIDDEN) || rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) continue;
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memory += sizeof(RRDDIM) + rd->memsize;
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if (dimensions)
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buffer_strcat(wb, ",\n\t\t\t\t\"");
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else
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buffer_strcat(wb, "\t\t\t\t\"");
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buffer_strcat_jsonescape(wb, rrddim_id(rd));
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buffer_strcat(wb, "\": { \"name\": \"");
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buffer_strcat_jsonescape(wb, rrddim_name(rd));
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buffer_strcat(wb, "\" }");
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dimensions++;
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}
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if(dimensions_count) *dimensions_count += dimensions;
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if(memory_used) *memory_used += memory;
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buffer_sprintf(wb, "\n\t\t\t},\n\t\t\t\"chart_variables\": ");
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health_api_v1_chart_custom_variables2json(st, wb);
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buffer_strcat(wb, ",\n\t\t\t\"green\": ");
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buffer_rrd_value(wb, st->green);
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buffer_strcat(wb, ",\n\t\t\t\"red\": ");
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buffer_rrd_value(wb, st->red);
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if (likely(!skip_volatile)) {
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buffer_strcat(wb, ",\n\t\t\t\"alarms\": {\n");
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size_t alarms = 0;
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RRDCALC *rc;
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foreach_rrdcalc_in_rrdset(st, rc) {
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buffer_sprintf(
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wb,
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"%s"
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"\t\t\t\t\"%s\": {\n"
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"\t\t\t\t\t\"id\": %u,\n"
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"\t\t\t\t\t\"status\": \"%s\",\n"
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"\t\t\t\t\t\"units\": \"%s\",\n"
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"\t\t\t\t\t\"update_every\": %d\n"
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"\t\t\t\t}",
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(alarms) ? ",\n" : "", rrdcalc_name(rc), rc->id, rrdcalc_status2string(rc->status), rrdcalc_units(rc),
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rc->update_every);
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alarms++;
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}
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buffer_sprintf(wb,
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"\n\t\t\t}"
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);
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}
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buffer_strcat(wb, ",\n\t\t\t\"chart_labels\": {\n");
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chart_labels2json(st, wb, 2);
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buffer_strcat(wb, "\t\t\t}\n");
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buffer_sprintf(wb,
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"\n\t\t}"
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);
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rrdset_unlock(st);
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}
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