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// SPDX-License-Identifier: GPL-3.0-or-later
#include "internal.h"
#include "aclk/aclk_capas.h"
// ----------------------------------------------------------------------------
// /api/v2/contexts API
typedef enum __attribute__ ((__packed__)) {
FTS_MATCHED_NONE = 0,
FTS_MATCHED_HOST,
FTS_MATCHED_CONTEXT,
FTS_MATCHED_INSTANCE,
FTS_MATCHED_DIMENSION,
FTS_MATCHED_LABEL,
FTS_MATCHED_ALERT,
FTS_MATCHED_ALERT_INFO,
FTS_MATCHED_FAMILY,
FTS_MATCHED_TITLE,
FTS_MATCHED_UNITS,
} FTS_MATCH;
static const char *fts_match_to_string(FTS_MATCH match) {
switch(match) {
case FTS_MATCHED_HOST:
return "HOST";
case FTS_MATCHED_CONTEXT:
return "CONTEXT";
case FTS_MATCHED_INSTANCE:
return "INSTANCE";
case FTS_MATCHED_DIMENSION:
return "DIMENSION";
case FTS_MATCHED_ALERT:
return "ALERT";
case FTS_MATCHED_ALERT_INFO:
return "ALERT_INFO";
case FTS_MATCHED_LABEL:
return "LABEL";
case FTS_MATCHED_FAMILY:
return "FAMILY";
case FTS_MATCHED_TITLE:
return "TITLE";
case FTS_MATCHED_UNITS:
return "UNITS";
default:
return "NONE";
}
}
struct rrdcontext_to_json_v2_entry {
size_t count;
STRING *id;
STRING *family;
uint32_t priority;
time_t first_time_s;
time_t last_time_s;
RRD_FLAGS flags;
FTS_MATCH match;
};
typedef struct full_text_search_index {
size_t searches;
size_t string_searches;
size_t char_searches;
} FTS_INDEX;
static inline bool full_text_search_string(FTS_INDEX *fts, SIMPLE_PATTERN *q, STRING *ptr) {
fts->searches++;
fts->string_searches++;
return simple_pattern_matches_string(q, ptr);
}
static inline bool full_text_search_char(FTS_INDEX *fts, SIMPLE_PATTERN *q, char *ptr) {
fts->searches++;
fts->char_searches++;
return simple_pattern_matches(q, ptr);
}
struct rrdcontext_to_json_v2_data {
BUFFER *wb;
struct api_v2_contexts_request *request;
DICTIONARY *ctx;
CONTEXTS_V2_OPTIONS options;
struct query_versions versions;
struct {
SIMPLE_PATTERN *scope_pattern;
SIMPLE_PATTERN *pattern;
size_t ni;
} nodes;
struct {
SIMPLE_PATTERN *scope_pattern;
SIMPLE_PATTERN *pattern;
} contexts;
struct {
FTS_MATCH host_match;
char host_uuid_buffer[UUID_STR_LEN];
SIMPLE_PATTERN *pattern;
FTS_INDEX fts;
} q;
};
static FTS_MATCH rrdcontext_to_json_v2_full_text_search(struct rrdcontext_to_json_v2_data *ctl, RRDCONTEXT *rc, SIMPLE_PATTERN *q) {
if(unlikely(full_text_search_string(&ctl->q.fts, q, rc->id) ||
full_text_search_string(&ctl->q.fts, q, rc->family)))
return FTS_MATCHED_CONTEXT;
if(unlikely(full_text_search_string(&ctl->q.fts, q, rc->title)))
return FTS_MATCHED_TITLE;
if(unlikely(full_text_search_string(&ctl->q.fts, q, rc->units)))
return FTS_MATCHED_UNITS;
FTS_MATCH matched = FTS_MATCHED_NONE;
RRDINSTANCE *ri;
dfe_start_read(rc->rrdinstances, ri) {
if(matched) break;
if(unlikely(full_text_search_string(&ctl->q.fts, q, ri->id)) ||
(ri->name != ri->id && full_text_search_string(&ctl->q.fts, q, ri->name))) {
matched = FTS_MATCHED_INSTANCE;
break;
}
RRDMETRIC *rm;
dfe_start_read(ri->rrdmetrics, rm) {
if(unlikely(full_text_search_string(&ctl->q.fts, q, rm->id)) ||
(rm->name != rm->id && full_text_search_string(&ctl->q.fts, q, rm->name))) {
matched = FTS_MATCHED_DIMENSION;
break;
}
}
dfe_done(rm);
size_t label_searches = 0;
if(unlikely(ri->rrdlabels && dictionary_entries(ri->rrdlabels) &&
rrdlabels_match_simple_pattern_parsed(ri->rrdlabels, q, ':', &label_searches))) {
ctl->q.fts.searches += label_searches;
ctl->q.fts.char_searches += label_searches;
matched = FTS_MATCHED_LABEL;
break;
}
ctl->q.fts.searches += label_searches;
ctl->q.fts.char_searches += label_searches;
if(ri->rrdset) {
RRDSET *st = ri->rrdset;
netdata_rwlock_rdlock(&st->alerts.rwlock);
for (RRDCALC *rcl = st->alerts.base; rcl; rcl = rcl->next) {
if(unlikely(full_text_search_string(&ctl->q.fts, q, rcl->name))) {
matched = FTS_MATCHED_ALERT;
break;
}
if(unlikely(full_text_search_string(&ctl->q.fts, q, rcl->info))) {
matched = FTS_MATCHED_ALERT_INFO;
break;
}
}
netdata_rwlock_unlock(&st->alerts.rwlock);
}
}
dfe_done(ri);
return matched;
}
static ssize_t rrdcontext_to_json_v2_add_context(void *data, RRDCONTEXT_ACQUIRED *rca, bool queryable_context __maybe_unused) {
struct rrdcontext_to_json_v2_data *ctl = data;
RRDCONTEXT *rc = rrdcontext_acquired_value(rca);
FTS_MATCH match = ctl->q.host_match;
if((ctl->options & CONTEXTS_V2_SEARCH) && ctl->q.pattern) {
match = rrdcontext_to_json_v2_full_text_search(ctl, rc, ctl->q.pattern);
if(match == FTS_MATCHED_NONE)
return 0;
}
struct rrdcontext_to_json_v2_entry t = {
.count = 0,
.id = rc->id,
.family = rc->family,
.priority = rc->priority,
.first_time_s = rc->first_time_s,
.last_time_s = rc->last_time_s,
.flags = rc->flags,
.match = match,
}, *z
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