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Merge pull request collectd#12 from ChrisLundquist/as/mongodb
Write MongoDB plugin: New plugin to write statistics to MongoDB, a NoSQL database using JSON documents.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| /** | ||
| * collectd - src/write_mongodb.c | ||
| * Copyright (C) 2010 Florian Forster | ||
| * Copyright (C) 2010 Akkarit Sangpetch | ||
| * Copyright (C) 2012 Chris Lundquist | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a | ||
| * copy of this software and associated documentation files (the "Software"), | ||
| * to deal in the Software without restriction, including without limitation | ||
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
| * and/or sell copies of the Software, and to permit persons to whom the | ||
| * Software is furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
| * DEALINGS IN THE SOFTWARE. | ||
| * | ||
| * Authors: | ||
| * Florian Forster <ff at octo.it> | ||
| * Akkarit Sangpetch <asangpet at andrew.cmu.edu> | ||
| * Chris Lundquist <clundquist at bluebox.net> | ||
| **/ | ||
|
|
||
| #include "collectd.h" | ||
| #include "plugin.h" | ||
| #include "common.h" | ||
| #include "configfile.h" | ||
|
|
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| #include <pthread.h> | ||
|
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| #if HAVE_STDINT_H | ||
| # define MONGO_HAVE_STDINT 1 | ||
| #else | ||
| # define MONGO_USE_LONG_LONG_INT 1 | ||
| #endif | ||
| #include <mongo.h> | ||
|
|
||
| struct wm_node_s | ||
| { | ||
| char name[DATA_MAX_NAME_LEN]; | ||
|
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| char *host; | ||
| int port; | ||
| int timeout; | ||
|
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| int connected; | ||
|
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| mongo conn[1]; | ||
| pthread_mutex_t lock; | ||
| }; | ||
| typedef struct wm_node_s wm_node_t; | ||
|
|
||
| /* | ||
| * Functions | ||
| */ | ||
| static int wm_write (const data_set_t *ds, /* {{{ */ | ||
| const value_list_t *vl, | ||
| user_data_t *ud) | ||
| { | ||
| wm_node_t *node = ud->data; | ||
| char collection_name[512]; | ||
| int status; | ||
| int i; | ||
| bson record; | ||
|
|
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| ssnprintf(collection_name, sizeof (collection_name), "collectd.%s", vl->plugin); | ||
|
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| bson_init(&record); | ||
| bson_append_time_t(&record,"ts",CDTIME_T_TO_TIME_T(vl->time)); | ||
| bson_append_string(&record,"h",vl->host); | ||
| bson_append_string(&record,"i",vl->plugin_instance); | ||
| bson_append_string(&record,"t",vl->type); | ||
| bson_append_string(&record,"ti",vl->type_instance); | ||
|
|
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| for (i = 0; i < ds->ds_num; i++) | ||
| { | ||
| if (ds->ds[i].type == DS_TYPE_COUNTER) | ||
| bson_append_long(&record, ds->ds[i].name, vl->values[i].counter); | ||
| else if (ds->ds[i].type == DS_TYPE_GAUGE) | ||
| bson_append_double(&record, ds->ds[i].name, vl->values[i].gauge); | ||
| else if (ds->ds[i].type == DS_TYPE_DERIVE) | ||
| bson_append_long(&record, ds->ds[i].name, vl->values[i].derive); | ||
| else if (ds->ds[i].type == DS_TYPE_ABSOLUTE) | ||
| bson_append_long(&record, ds->ds[i].name, vl->values[i].absolute); | ||
| else | ||
| assert (23 == 42); | ||
| } | ||
| bson_finish(&record); | ||
|
|
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| pthread_mutex_lock (&node->lock); | ||
|
|
||
| if (node->connected == 0) | ||
| { | ||
| status = mongo_connect(node->conn, node->host, node->port); | ||
| if (status != MONGO_OK) { | ||
| ERROR ("write_mongodb plugin: Connecting to host \"%s\" (port %i) failed.", | ||
| (node->host != NULL) ? node->host : "localhost", | ||
| (node->port != 0) ? node->port : MONGO_DEFAULT_PORT); | ||
| mongo_destroy(node->conn); | ||
| pthread_mutex_unlock (&node->lock); | ||
| return (-1); | ||
| } else { | ||
| node->connected = 1; | ||
| } | ||
| } | ||
|
|
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| /* Assert if the connection has been established */ | ||
| assert (node->connected == 1); | ||
|
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| DEBUG ( "write_mongodb plugin: writing record"); | ||
| /* bson_print(&record); */ | ||
|
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| status = mongo_insert(node->conn,collection_name,&record); | ||
|
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| if(status != MONGO_OK) | ||
| { | ||
| ERROR ( "write_mongodb plugin: error inserting record: %d", node->conn->err); | ||
| if (node->conn->err == MONGO_BSON_INVALID) | ||
| ERROR ("write_mongodb plugin: %s", node->conn->errstr); | ||
| else if (record.err) | ||
| ERROR ("write_mongodb plugin: %s", record.errstr); | ||
| } | ||
|
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| pthread_mutex_unlock (&node->lock); | ||
|
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| return (0); | ||
| } /* }}} int wm_write */ | ||
|
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| static void wm_config_free (void *ptr) /* {{{ */ | ||
| { | ||
| wm_node_t *node = ptr; | ||
|
|
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| if (node == NULL) | ||
| return; | ||
|
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| if (node->connected != 0) | ||
| { | ||
| mongo_destroy(node->conn); | ||
| node->connected = 0; | ||
| } | ||
|
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| sfree (node->host); | ||
| sfree (node); | ||
| } /* }}} void wm_config_free */ | ||
|
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| static int wm_config_node (oconfig_item_t *ci) /* {{{ */ | ||
| { | ||
| wm_node_t *node; | ||
| int status; | ||
| int i; | ||
|
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| node = malloc (sizeof (*node)); | ||
| if (node == NULL) | ||
| return (ENOMEM); | ||
| memset (node, 0, sizeof (*node)); | ||
| node->host = NULL; | ||
| node->port = 0; | ||
| node->timeout = 1000; | ||
| node->connected = 0; | ||
| pthread_mutex_init (&node->lock, /* attr = */ NULL); | ||
|
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| status = cf_util_get_string_buffer (ci, node->name, sizeof (node->name)); | ||
|
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| if (status != 0) | ||
| { | ||
| sfree (node); | ||
| return (status); | ||
| } | ||
|
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| for (i = 0; i < ci->children_num; i++) | ||
| { | ||
| oconfig_item_t *child = ci->children + i; | ||
|
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| if (strcasecmp ("Host", child->key) == 0) | ||
| status = cf_util_get_string (child, &node->host); | ||
| else if (strcasecmp ("Port", child->key) == 0) | ||
| { | ||
| status = cf_util_get_port_number (child); | ||
| if (status > 0) | ||
| { | ||
| node->port = status; | ||
| status = 0; | ||
| } | ||
| } | ||
| else if (strcasecmp ("Timeout", child->key) == 0) | ||
| status = cf_util_get_int (child, &node->timeout); | ||
| else | ||
| WARNING ("write_mongodb plugin: Ignoring unknown config option \"%s\".", | ||
| child->key); | ||
|
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| if (status != 0) | ||
| break; | ||
| } /* for (i = 0; i < ci->children_num; i++) */ | ||
|
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| if (status == 0) | ||
| { | ||
| char cb_name[DATA_MAX_NAME_LEN]; | ||
| user_data_t ud; | ||
|
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| ssnprintf (cb_name, sizeof (cb_name), "write_mongodb/%s", node->name); | ||
|
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| ud.data = node; | ||
| ud.free_func = wm_config_free; | ||
|
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| status = plugin_register_write (cb_name, wm_write, &ud); | ||
| INFO ("write_mongodb plugin: registered write plugin %s %d",cb_name,status); | ||
| } | ||
|
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| if (status != 0) | ||
| wm_config_free (node); | ||
|
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| return (status); | ||
| } /* }}} int wm_config_node */ | ||
|
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| static int wm_config (oconfig_item_t *ci) /* {{{ */ | ||
| { | ||
| int i; | ||
|
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| for (i = 0; i < ci->children_num; i++) | ||
| { | ||
| oconfig_item_t *child = ci->children + i; | ||
|
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| if (strcasecmp ("Node", child->key) == 0) | ||
| wm_config_node (child); | ||
| else | ||
| WARNING ("write_mongodb plugin: Ignoring unknown " | ||
| "configuration option \"%s\" at top level.", child->key); | ||
| } | ||
|
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| return (0); | ||
| } /* }}} int wm_config */ | ||
|
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| void module_register (void) | ||
| { | ||
| plugin_register_complex_config ("write_mongodb", wm_config); | ||
| } | ||
|
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| /* vim: set sw=2 sts=2 tw=78 et fdm=marker : */ |