1 /**
2 * collectd - src/write_mongodb.c
3 * Copyright (C) 2010-2012 Florian Forster
4 * Copyright (C) 2010 Akkarit Sangpetch
5 * Copyright (C) 2012 Chris Lundquist
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Florian Forster <ff at octo.it>
27 * Akkarit Sangpetch <asangpet at andrew.cmu.edu>
28 * Chris Lundquist <clundquist at bluebox.net>
29 **/
31 #include "collectd.h"
32 #include "plugin.h"
33 #include "common.h"
34 #include "configfile.h"
35 #include "utils_cache.h"
37 #include <pthread.h>
39 #if HAVE_STDINT_H
40 # define MONGO_HAVE_STDINT 1
41 #else
42 # define MONGO_USE_LONG_LONG_INT 1
43 #endif
44 #include <mongo.h>
46 struct wm_node_s
47 {
48 char name[DATA_MAX_NAME_LEN];
50 char *host;
51 int port;
52 int timeout;
54 _Bool store_rates;
56 mongo conn[1];
57 pthread_mutex_t lock;
58 };
59 typedef struct wm_node_s wm_node_t;
61 /*
62 * Functions
63 */
64 static bson *wm_create_bson (const data_set_t *ds, /* {{{ */
65 const value_list_t *vl,
66 _Bool store_rates)
67 {
68 bson *ret;
69 gauge_t *rates;
70 int i;
72 ret = bson_create ();
73 if (ret == NULL)
74 {
75 ERROR ("write_mongodb plugin: bson_create failed.");
76 return (NULL);
77 }
79 if (store_rates)
80 {
81 rates = uc_get_rate (ds, vl);
82 if (rates == NULL)
83 {
84 ERROR ("write_mongodb plugin: uc_get_rate() failed.");
85 return (NULL);
86 }
87 }
88 else
89 {
90 rates = NULL;
91 }
93 bson_init (ret);
94 bson_append_date (ret, "time", (bson_date_t) CDTIME_T_TO_MS (vl->time));
95 bson_append_string (ret, "host", vl->host);
96 bson_append_string (ret, "plugin", vl->plugin);
97 bson_append_string (ret, "plugin_instance", vl->plugin_instance);
98 bson_append_string (ret, "type", vl->type);
99 bson_append_string (ret, "type_instance", vl->type_instance);
101 bson_append_start_array (ret, "values"); /* {{{ */
102 for (i = 0; i < ds->ds_num; i++)
103 {
104 char key[16];
106 ssnprintf (key, sizeof (key), "%i", i);
108 if (ds->ds[i].type == DS_TYPE_GAUGE)
109 bson_append_double(ret, key, vl->values[i].gauge);
110 else if (store_rates)
111 bson_append_double(ret, key, (double) rates[i]);
112 else if (ds->ds[i].type == DS_TYPE_COUNTER)
113 bson_append_long(ret, key, vl->values[i].counter);
114 else if (ds->ds[i].type == DS_TYPE_DERIVE)
115 bson_append_long(ret, key, vl->values[i].derive);
116 else if (ds->ds[i].type == DS_TYPE_ABSOLUTE)
117 bson_append_long(ret, key, vl->values[i].absolute);
118 else
119 assert (23 == 42);
120 }
121 bson_append_finish_array (ret); /* }}} values */
123 bson_append_start_array (ret, "dstypes"); /* {{{ */
124 for (i = 0; i < ds->ds_num; i++)
125 {
126 char key[16];
128 ssnprintf (key, sizeof (key), "%i", i);
130 if (store_rates)
131 bson_append_string (ret, key, "gauge");
132 else
133 bson_append_string (ret, key, DS_TYPE_TO_STRING (ds->ds[i].type));
134 }
135 bson_append_finish_array (ret); /* }}} dstypes */
137 bson_append_start_array (ret, "dsnames"); /* {{{ */
138 for (i = 0; i < ds->ds_num; i++)
139 {
140 char key[16];
142 ssnprintf (key, sizeof (key), "%i", i);
143 bson_append_string (ret, key, ds->ds[i].name);
144 }
145 bson_append_finish_array (ret); /* }}} dsnames */
147 bson_finish (ret);
149 sfree (rates);
150 return (ret);
151 } /* }}} bson *wm_create_bson */
153 static int wm_write (const data_set_t *ds, /* {{{ */
154 const value_list_t *vl,
155 user_data_t *ud)
156 {
157 wm_node_t *node = ud->data;
158 char collection_name[512];
159 bson *bson_record;
160 int status;
162 ssnprintf (collection_name, sizeof (collection_name), "collectd.%s",
163 vl->plugin);
165 bson_record = wm_create_bson (ds, vl, node->store_rates);
166 if (bson_record == NULL)
167 return (ENOMEM);
169 pthread_mutex_lock (&node->lock);
171 if (!mongo_is_connected (node->conn))
172 {
173 INFO ("write_mongodb plugin: Connecting to [%s]:%i",
174 (node->host != NULL) ? node->host : "localhost",
175 (node->port != 0) ? node->port : MONGO_DEFAULT_PORT);
176 status = mongo_connect (node->conn, node->host, node->port);
177 if (status != MONGO_OK) {
178 ERROR ("write_mongodb plugin: Connecting to [%s]:%i failed.",
179 (node->host != NULL) ? node->host : "localhost",
180 (node->port != 0) ? node->port : MONGO_DEFAULT_PORT);
181 mongo_destroy (node->conn);
182 pthread_mutex_unlock (&node->lock);
183 return (-1);
184 }
186 if (node->timeout > 0) {
187 status = mongo_set_op_timeout (node->conn, node->timeout);
188 if (status != MONGO_OK) {
189 WARNING ("write_mongodb plugin: mongo_set_op_timeout(%i) failed: %s",
190 node->timeout, node->conn->errstr);
191 }
192 }
193 }
195 /* Assert if the connection has been established */
196 assert (mongo_is_connected (node->conn));
198 #if MONGO_MINOR >= 6
199 /* There was an API change in 0.6.0 as linked below */
200 /* https://github.com/mongodb/mongo-c-driver/blob/master/HISTORY.md */
201 status = mongo_insert (node->conn, collection_name, bson_record, NULL);
202 #else
203 status = mongo_insert (node->conn, collection_name, bson_record);
204 #endif
206 if(status != MONGO_OK)
207 {
208 ERROR ( "write_mongodb plugin: error inserting record: %d", node->conn->err);
209 if (node->conn->err != MONGO_BSON_INVALID)
210 ERROR ("write_mongodb plugin: %s", node->conn->errstr);
211 else if (bson_record->err)
212 ERROR ("write_mongodb plugin: %s", bson_record->errstr);
214 /* Disconnect except on data errors. */
215 if ((node->conn->err != MONGO_BSON_INVALID)
216 && (node->conn->err != MONGO_BSON_NOT_FINISHED))
217 mongo_destroy (node->conn);
218 }
220 pthread_mutex_unlock (&node->lock);
222 /* free our resource as not to leak memory */
223 bson_dispose (bson_record);
225 return (0);
226 } /* }}} int wm_write */
228 static void wm_config_free (void *ptr) /* {{{ */
229 {
230 wm_node_t *node = ptr;
232 if (node == NULL)
233 return;
235 if (mongo_is_connected (node->conn))
236 mongo_destroy (node->conn);
238 sfree (node->host);
239 sfree (node);
240 } /* }}} void wm_config_free */
242 static int wm_config_node (oconfig_item_t *ci) /* {{{ */
243 {
244 wm_node_t *node;
245 int status;
246 int i;
248 node = malloc (sizeof (*node));
249 if (node == NULL)
250 return (ENOMEM);
251 memset (node, 0, sizeof (*node));
252 mongo_init (node->conn);
253 node->host = NULL;
254 node->store_rates = 1;
255 pthread_mutex_init (&node->lock, /* attr = */ NULL);
257 status = cf_util_get_string_buffer (ci, node->name, sizeof (node->name));
259 if (status != 0)
260 {
261 sfree (node);
262 return (status);
263 }
265 for (i = 0; i < ci->children_num; i++)
266 {
267 oconfig_item_t *child = ci->children + i;
269 if (strcasecmp ("Host", child->key) == 0)
270 status = cf_util_get_string (child, &node->host);
271 else if (strcasecmp ("Port", child->key) == 0)
272 {
273 status = cf_util_get_port_number (child);
274 if (status > 0)
275 {
276 node->port = status;
277 status = 0;
278 }
279 }
280 else if (strcasecmp ("Timeout", child->key) == 0)
281 status = cf_util_get_int (child, &node->timeout);
282 else if (strcasecmp ("StoreRates", child->key) == 0)
283 status = cf_util_get_boolean (child, &node->store_rates);
284 else
285 WARNING ("write_mongodb plugin: Ignoring unknown config option \"%s\".",
286 child->key);
288 if (status != 0)
289 break;
290 } /* for (i = 0; i < ci->children_num; i++) */
292 if (status == 0)
293 {
294 char cb_name[DATA_MAX_NAME_LEN];
295 user_data_t ud;
297 ssnprintf (cb_name, sizeof (cb_name), "write_mongodb/%s", node->name);
299 ud.data = node;
300 ud.free_func = wm_config_free;
302 status = plugin_register_write (cb_name, wm_write, &ud);
303 INFO ("write_mongodb plugin: registered write plugin %s %d",cb_name,status);
304 }
306 if (status != 0)
307 wm_config_free (node);
309 return (status);
310 } /* }}} int wm_config_node */
312 static int wm_config (oconfig_item_t *ci) /* {{{ */
313 {
314 int i;
316 for (i = 0; i < ci->children_num; i++)
317 {
318 oconfig_item_t *child = ci->children + i;
320 if (strcasecmp ("Node", child->key) == 0)
321 wm_config_node (child);
322 else
323 WARNING ("write_mongodb plugin: Ignoring unknown "
324 "configuration option \"%s\" at top level.", child->key);
325 }
327 return (0);
328 } /* }}} int wm_config */
330 void module_register (void)
331 {
332 plugin_register_complex_config ("write_mongodb", wm_config);
333 }
335 /* vim: set sw=2 sts=2 tw=78 et fdm=marker : */