1 /**
2 * collectd - src/write_mongodb.c
3 * Copyright (C) 2010 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"
36 #include <pthread.h>
38 #if HAVE_STDINT_H
39 # define MONGO_HAVE_STDINT 1
40 #else
41 # define MONGO_USE_LONG_LONG_INT 1
42 #endif
43 #include <mongo.h>
45 struct wm_node_s
46 {
47 char name[DATA_MAX_NAME_LEN];
49 char *host;
50 int port;
51 int timeout;
53 int connected;
55 mongo conn[1];
56 pthread_mutex_t lock;
57 };
58 typedef struct wm_node_s wm_node_t;
60 /*
61 * Functions
62 */
63 static int wm_write (const data_set_t *ds, /* {{{ */
64 const value_list_t *vl,
65 user_data_t *ud)
66 {
67 wm_node_t *node = ud->data;
68 char collection_name[512];
69 int status;
70 int i;
71 bson record;
73 ssnprintf(collection_name, sizeof (collection_name), "collectd.%s", vl->plugin);
75 bson_init(&record);
76 bson_append_time_t(&record,"ts",CDTIME_T_TO_TIME_T(vl->time));
77 bson_append_string(&record,"h",vl->host);
78 bson_append_string(&record,"i",vl->plugin_instance);
79 bson_append_string(&record,"t",vl->type);
80 bson_append_string(&record,"ti",vl->type_instance);
82 for (i = 0; i < ds->ds_num; i++)
83 {
84 if (ds->ds[i].type == DS_TYPE_COUNTER)
85 bson_append_long(&record, ds->ds[i].name, vl->values[i].counter);
86 else if (ds->ds[i].type == DS_TYPE_GAUGE)
87 bson_append_double(&record, ds->ds[i].name, vl->values[i].gauge);
88 else if (ds->ds[i].type == DS_TYPE_DERIVE)
89 bson_append_long(&record, ds->ds[i].name, vl->values[i].derive);
90 else if (ds->ds[i].type == DS_TYPE_ABSOLUTE)
91 bson_append_long(&record, ds->ds[i].name, vl->values[i].absolute);
92 else
93 assert (23 == 42);
94 }
95 /* We must finish the record, other wise the insert will fail */
96 bson_finish(&record);
98 pthread_mutex_lock (&node->lock);
100 if (node->connected == 0)
101 {
102 status = mongo_connect(node->conn, node->host, node->port);
103 if (status != MONGO_OK) {
104 ERROR ("write_mongodb plugin: Connecting to host \"%s\" (port %i) failed.",
105 (node->host != NULL) ? node->host : "localhost",
106 (node->port != 0) ? node->port : MONGO_DEFAULT_PORT);
107 mongo_destroy(node->conn);
108 pthread_mutex_unlock (&node->lock);
109 return (-1);
110 } else {
111 node->connected = 1;
112 }
113 }
115 /* Assert if the connection has been established */
116 assert (node->connected == 1);
118 DEBUG ( "write_mongodb plugin: writing record");
119 /* bson_print(&record); */
121 status = mongo_insert(node->conn,collection_name,&record);
123 if(status != MONGO_OK)
124 {
125 ERROR ( "write_mongodb plugin: error inserting record: %d", node->conn->err);
126 if (node->conn->err == MONGO_BSON_INVALID)
127 ERROR ("write_mongodb plugin: %s", node->conn->errstr);
128 else if (record.err)
129 ERROR ("write_mongodb plugin: %s", record.errstr);
130 }
132 pthread_mutex_unlock (&node->lock);
133 /* free our resource as not to leak memory */
134 bson_destroy(&record);
136 return (0);
137 } /* }}} int wm_write */
139 static void wm_config_free (void *ptr) /* {{{ */
140 {
141 wm_node_t *node = ptr;
143 if (node == NULL)
144 return;
146 if (node->connected != 0)
147 {
148 mongo_destroy(node->conn);
149 node->connected = 0;
150 }
152 sfree (node->host);
153 sfree (node);
154 } /* }}} void wm_config_free */
156 static int wm_config_node (oconfig_item_t *ci) /* {{{ */
157 {
158 wm_node_t *node;
159 int status;
160 int i;
162 node = malloc (sizeof (*node));
163 if (node == NULL)
164 return (ENOMEM);
165 memset (node, 0, sizeof (*node));
166 node->host = NULL;
167 node->port = 0;
168 node->timeout = 1000;
169 node->connected = 0;
170 pthread_mutex_init (&node->lock, /* attr = */ NULL);
172 status = cf_util_get_string_buffer (ci, node->name, sizeof (node->name));
174 if (status != 0)
175 {
176 sfree (node);
177 return (status);
178 }
180 for (i = 0; i < ci->children_num; i++)
181 {
182 oconfig_item_t *child = ci->children + i;
184 if (strcasecmp ("Host", child->key) == 0)
185 status = cf_util_get_string (child, &node->host);
186 else if (strcasecmp ("Port", child->key) == 0)
187 {
188 status = cf_util_get_port_number (child);
189 if (status > 0)
190 {
191 node->port = status;
192 status = 0;
193 }
194 }
195 else if (strcasecmp ("Timeout", child->key) == 0)
196 status = cf_util_get_int (child, &node->timeout);
197 else
198 WARNING ("write_mongodb plugin: Ignoring unknown config option \"%s\".",
199 child->key);
201 if (status != 0)
202 break;
203 } /* for (i = 0; i < ci->children_num; i++) */
205 if (status == 0)
206 {
207 char cb_name[DATA_MAX_NAME_LEN];
208 user_data_t ud;
210 ssnprintf (cb_name, sizeof (cb_name), "write_mongodb/%s", node->name);
212 ud.data = node;
213 ud.free_func = wm_config_free;
215 status = plugin_register_write (cb_name, wm_write, &ud);
216 INFO ("write_mongodb plugin: registered write plugin %s %d",cb_name,status);
217 }
219 if (status != 0)
220 wm_config_free (node);
222 return (status);
223 } /* }}} int wm_config_node */
225 static int wm_config (oconfig_item_t *ci) /* {{{ */
226 {
227 int i;
229 for (i = 0; i < ci->children_num; i++)
230 {
231 oconfig_item_t *child = ci->children + i;
233 if (strcasecmp ("Node", child->key) == 0)
234 wm_config_node (child);
235 else
236 WARNING ("write_mongodb plugin: Ignoring unknown "
237 "configuration option \"%s\" at top level.", child->key);
238 }
240 return (0);
241 } /* }}} int wm_config */
243 void module_register (void)
244 {
245 plugin_register_complex_config ("write_mongodb", wm_config);
246 }
248 /* vim: set sw=2 sts=2 tw=78 et fdm=marker : */