1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
* Copyright (c) 2023 Attila Szakacs
* Copyright (c) 2024 Balazs Scheidler <balazs.scheidler@axoflow.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "dyn-metrics-template.h"
#include "label-template.h"
#include "dyn-metrics-cache.h"
#include "stats/stats-cluster-single.h"
#include "scratch-buffers.h"
void
dyn_metrics_template_set_level(DynMetricsTemplate *self, gint level)
{
self->level = level;
}
void
dyn_metrics_template_add_label_template(DynMetricsTemplate *self, const gchar *label, LogTemplate *value_template)
{
self->label_templates = g_list_append(self->label_templates, label_template_new(label, value_template));
}
ValuePairs *
dyn_metrics_template_get_value_pairs(DynMetricsTemplate *self)
{
return self->vp;
}
void
dyn_metrics_template_set_key(DynMetricsTemplate *self, const gchar *key)
{
g_free(self->key);
self->key = g_strdup(key);
}
static gboolean
_add_dynamic_labels_vp_helper(const gchar *name, LogMessageValueType type, const gchar *value, gsize value_len,
gpointer user_data)
{
DynMetricsStore *cache = (DynMetricsStore *) user_data;
GString *name_buffer = scratch_buffers_alloc();
GString *value_buffer = scratch_buffers_alloc();
g_string_assign(name_buffer, name);
g_string_append_len(value_buffer, value, value_len);
StatsClusterLabel *label = dyn_metrics_store_cache_label(cache);
label->name = name_buffer->str;
label->value = value_buffer->str;
return FALSE;
}
static void
_add_dynamic_labels(DynMetricsTemplate *self, LogTemplateOptions *template_options, LogMessage *msg,
DynMetricsStore *cache)
{
LogTemplateEvalOptions template_eval_options = { template_options, LTZ_SEND, 0, NULL, LM_VT_STRING };
value_pairs_foreach(self->vp, _add_dynamic_labels_vp_helper, msg, &template_eval_options, cache);
}
gboolean
dyn_metrics_template_is_enabled(DynMetricsTemplate *self)
{
return stats_check_level(self->level);
}
static void
_build_sck(DynMetricsTemplate *self, LogTemplateOptions *template_options, LogMessage *msg, DynMetricsStore *cache,
StatsClusterKey *key)
{
dyn_metrics_store_reset_labels_cache(cache);
for (GList *elem = g_list_first(self->label_templates); elem; elem = elem->next)
{
LabelTemplate *label_template = (LabelTemplate *) elem->data;
GString *value_buffer = scratch_buffers_alloc();
label_template_format(label_template, template_options, msg, value_buffer,
dyn_metrics_store_cache_label(cache));
}
if (self->vp)
_add_dynamic_labels(self, template_options, msg, cache);
stats_cluster_single_key_set(key, self->key,
dyn_metrics_store_get_cached_labels(cache),
dyn_metrics_store_get_cached_labels_len(cache));
}
StatsCounterItem *
dyn_metrics_template_get_stats_counter(DynMetricsTemplate *self,
LogTemplateOptions *template_options,
LogMessage *msg)
{
DynMetricsStore *cache = dyn_metrics_cache();
StatsClusterKey key;
ScratchBuffersMarker marker;
scratch_buffers_mark(&marker);
_build_sck(self, template_options, msg, cache, &key);
StatsCounterItem *counter = dyn_metrics_store_retrieve_counter(cache, &key, self->level);
scratch_buffers_reclaim_marked(marker);
return counter;
}
gboolean
dyn_metrics_template_init(DynMetricsTemplate *self)
{
self->label_templates = g_list_sort(self->label_templates, (GCompareFunc) label_template_compare);
return TRUE;
}
DynMetricsTemplate *
dyn_metrics_template_new(GlobalConfig *cfg)
{
DynMetricsTemplate *self = g_new0(DynMetricsTemplate, 1);
self->vp = value_pairs_new(cfg);
return self;
}
void
dyn_metrics_template_free(DynMetricsTemplate *self)
{
g_free(self->key);
g_list_free_full(self->label_templates, (GDestroyNotify) label_template_free);
value_pairs_unref(self->vp);
g_free(self);
}
DynMetricsTemplate *
dyn_metrics_template_clone(DynMetricsTemplate *self, GlobalConfig *cfg)
{
DynMetricsTemplate *cloned = dyn_metrics_template_new(cfg);
dyn_metrics_template_set_key(cloned, self->key);
dyn_metrics_template_set_level(cloned, self->level);
for (GList *elem = g_list_first(self->label_templates); elem; elem = elem->next)
{
LabelTemplate *label_template = (LabelTemplate *) elem->data;
cloned->label_templates = g_list_append(cloned->label_templates, label_template_clone(label_template));
}
value_pairs_unref(cloned->vp);
cloned->vp = value_pairs_ref(self->vp);
return cloned;
}
|
