* Copyright (C) 2010-2013 Florian Forster
* Copyright (C) 2010 Akkarit Sangpetch
* Copyright (C) 2012 Chris Lundquist
+ * Copyright (C) 2017 Saikrishna Arcot
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* Florian Forster <octo at collectd.org>
* Akkarit Sangpetch <asangpet at andrew.cmu.edu>
* Chris Lundquist <clundquist at bluebox.net>
+ * Saikrishna Arcot <saiarcot895 at gmail.com>
**/
#include "collectd.h"
-#include "plugin.h"
#include "common.h"
+#include "plugin.h"
#include "utils_cache.h"
-#if HAVE_STDINT_H
-# define MONGO_HAVE_STDINT 1
-#else
-# define MONGO_USE_LONG_LONG_INT 1
-#endif
-#include <mongo.h>
-
-#if (MONGO_MAJOR == 0) && (MONGO_MINOR < 8)
-# define bson_alloc() bson_create()
-# define bson_dealloc(b) bson_dispose(b)
-#endif
+#include <mongoc.h>
-struct wm_node_s
-{
+struct wm_node_s {
char name[DATA_MAX_NAME_LEN];
char *host;
char *passwd;
_Bool store_rates;
+ _Bool connected;
- mongo conn[1];
+ mongoc_client_t *client;
+ mongoc_database_t *database;
pthread_mutex_t lock;
};
typedef struct wm_node_s wm_node_t;
/*
* Functions
*/
-static bson *wm_create_bson (const data_set_t *ds, /* {{{ */
- const value_list_t *vl,
- _Bool store_rates)
-{
- bson *ret;
+static bson_t *wm_create_bson(const data_set_t *ds, /* {{{ */
+ const value_list_t *vl, _Bool store_rates) {
+ bson_t *ret;
+ bson_t subarray;
gauge_t *rates;
- ret = bson_alloc (); /* matched by bson_dealloc() */
- if (ret == NULL)
- {
- ERROR ("write_mongodb plugin: bson_create failed.");
- return (NULL);
+ ret = bson_new();
+ if (!ret) {
+ ERROR("write_mongodb plugin: bson_new failed.");
+ return NULL;
}
- if (store_rates)
- {
- rates = uc_get_rate (ds, vl);
- if (rates == NULL)
- {
- ERROR ("write_mongodb plugin: uc_get_rate() failed.");
- return (NULL);
+ if (store_rates) {
+ rates = uc_get_rate(ds, vl);
+ if (rates == NULL) {
+ ERROR("write_mongodb plugin: uc_get_rate() failed.");
+ bson_destroy(ret);
+ return NULL;
}
- }
- else
- {
+ } else {
rates = NULL;
}
- bson_init (ret); /* matched by bson_destroy() */
- bson_append_date (ret, "time", (bson_date_t) CDTIME_T_TO_MS (vl->time));
- bson_append_string (ret, "host", vl->host);
- bson_append_string (ret, "plugin", vl->plugin);
- bson_append_string (ret, "plugin_instance", vl->plugin_instance);
- bson_append_string (ret, "type", vl->type);
- bson_append_string (ret, "type_instance", vl->type_instance);
-
- bson_append_start_array (ret, "values"); /* {{{ */
- for (int i = 0; i < ds->ds_num; i++)
- {
+ BSON_APPEND_DATE_TIME(ret, "timestamp", CDTIME_T_TO_MS(vl->time));
+ BSON_APPEND_UTF8(ret, "host", vl->host);
+ BSON_APPEND_UTF8(ret, "plugin", vl->plugin);
+ BSON_APPEND_UTF8(ret, "plugin_instance", vl->plugin_instance);
+ BSON_APPEND_UTF8(ret, "type", vl->type);
+ BSON_APPEND_UTF8(ret, "type_instance", vl->type_instance);
+
+ BSON_APPEND_ARRAY_BEGIN(ret, "values", &subarray); /* {{{ */
+ for (size_t i = 0; i < ds->ds_num; i++) {
char key[16];
- ssnprintf (key, sizeof (key), "%i", i);
+ snprintf(key, sizeof(key), "%" PRIsz, i);
if (ds->ds[i].type == DS_TYPE_GAUGE)
- bson_append_double(ret, key, vl->values[i].gauge);
+ BSON_APPEND_DOUBLE(&subarray, key, vl->values[i].gauge);
else if (store_rates)
- bson_append_double(ret, key, (double) rates[i]);
+ BSON_APPEND_DOUBLE(&subarray, key, (double)rates[i]);
else if (ds->ds[i].type == DS_TYPE_COUNTER)
- bson_append_long(ret, key, vl->values[i].counter);
+ BSON_APPEND_INT64(&subarray, key, vl->values[i].counter);
else if (ds->ds[i].type == DS_TYPE_DERIVE)
- bson_append_long(ret, key, vl->values[i].derive);
+ BSON_APPEND_INT64(&subarray, key, vl->values[i].derive);
else if (ds->ds[i].type == DS_TYPE_ABSOLUTE)
- bson_append_long(ret, key, vl->values[i].absolute);
- else
- assert (23 == 42);
+ BSON_APPEND_INT64(&subarray, key, vl->values[i].absolute);
+ else {
+ ERROR("write_mongodb plugin: Unknown ds_type %d for index %" PRIsz,
+ ds->ds[i].type, i);
+ bson_destroy(ret);
+ return NULL;
+ }
}
- bson_append_finish_array (ret); /* }}} values */
+ bson_append_array_end(ret, &subarray); /* }}} values */
- bson_append_start_array (ret, "dstypes"); /* {{{ */
- for (int i = 0; i < ds->ds_num; i++)
- {
+ BSON_APPEND_ARRAY_BEGIN(ret, "dstypes", &subarray); /* {{{ */
+ for (size_t i = 0; i < ds->ds_num; i++) {
char key[16];
- ssnprintf (key, sizeof (key), "%i", i);
+ snprintf(key, sizeof(key), "%" PRIsz, i);
if (store_rates)
- bson_append_string (ret, key, "gauge");
+ BSON_APPEND_UTF8(&subarray, key, "gauge");
else
- bson_append_string (ret, key, DS_TYPE_TO_STRING (ds->ds[i].type));
+ BSON_APPEND_UTF8(&subarray, key, DS_TYPE_TO_STRING(ds->ds[i].type));
}
- bson_append_finish_array (ret); /* }}} dstypes */
+ bson_append_array_end(ret, &subarray); /* }}} dstypes */
- bson_append_start_array (ret, "dsnames"); /* {{{ */
- for (int i = 0; i < ds->ds_num; i++)
- {
+ BSON_APPEND_ARRAY_BEGIN(ret, "dsnames", &subarray); /* {{{ */
+ for (size_t i = 0; i < ds->ds_num; i++) {
char key[16];
- ssnprintf (key, sizeof (key), "%i", i);
- bson_append_string (ret, key, ds->ds[i].name);
+ snprintf(key, sizeof(key), "%" PRIsz, i);
+ BSON_APPEND_UTF8(&subarray, key, ds->ds[i].name);
}
- bson_append_finish_array (ret); /* }}} dsnames */
+ bson_append_array_end(ret, &subarray); /* }}} dsnames */
- bson_finish (ret);
+ sfree(rates);
- sfree (rates);
- return (ret);
+ size_t error_location;
+ if (!bson_validate(ret, BSON_VALIDATE_UTF8, &error_location)) {
+ ERROR("write_mongodb plugin: Error in generated BSON document "
+ "at byte %" PRIsz,
+ error_location);
+ bson_destroy(ret);
+ return NULL;
+ }
+
+ return ret;
} /* }}} bson *wm_create_bson */
-static int wm_write (const data_set_t *ds, /* {{{ */
- const value_list_t *vl,
- user_data_t *ud)
+static int wm_initialize(wm_node_t *node) /* {{{ */
{
- wm_node_t *node = ud->data;
- char collection_name[512];
- bson *bson_record;
- int status;
-
- ssnprintf (collection_name, sizeof (collection_name), "collectd.%s",
- vl->plugin);
-
- bson_record = wm_create_bson (ds, vl, node->store_rates);
- if (bson_record == NULL)
- return (ENOMEM);
-
- pthread_mutex_lock (&node->lock);
-
- if (!mongo_is_connected (node->conn))
- {
- INFO ("write_mongodb plugin: Connecting to [%s]:%i",
- (node->host != NULL) ? node->host : "localhost",
- (node->port != 0) ? node->port : MONGO_DEFAULT_PORT);
- status = mongo_connect (node->conn, node->host, node->port);
- if (status != MONGO_OK) {
- ERROR ("write_mongodb plugin: Connecting to [%s]:%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);
+ char *uri;
+
+ if (node->connected)
+ return 0;
+
+ INFO("write_mongodb plugin: Connecting to [%s]:%d", node->host, node->port);
+
+ if ((node->db != NULL) && (node->user != NULL) && (node->passwd != NULL)) {
+ uri = ssnprintf_alloc("mongodb://%s:%s@%s:%d/?authSource=%s", node->user,
+ node->passwd, node->host, node->port, node->db);
+ if (uri == NULL) {
+ ERROR("write_mongodb plugin: Not enough memory to assemble "
+ "authentication string.");
+ mongoc_client_destroy(node->client);
+ node->client = NULL;
+ node->connected = 0;
+ return -1;
}
- if ((node->db != NULL) && (node->user != NULL) && (node->passwd != NULL))
- {
- status = mongo_cmd_authenticate (node->conn,
- node->db, node->user, node->passwd);
- if (status != MONGO_OK)
- {
- ERROR ("write_mongodb plugin: Authenticating to [%s]%i for database "
+ node->client = mongoc_client_new(uri);
+ if (!node->client) {
+ ERROR("write_mongodb plugin: Authenticating to [%s]:%d for database "
"\"%s\" as user \"%s\" failed.",
- (node->host != NULL) ? node->host : "localhost",
- (node->port != 0) ? node->port : MONGO_DEFAULT_PORT,
- node->db, node->user);
- mongo_destroy (node->conn);
- pthread_mutex_unlock (&node->lock);
- return (-1);
- }
+ node->host, node->port, node->db, node->user);
+ node->connected = 0;
+ sfree(uri);
+ return -1;
+ }
+ } else {
+ uri = ssnprintf_alloc("mongodb://%s:%d", node->host, node->port);
+ if (uri == NULL) {
+ ERROR("write_mongodb plugin: Not enough memory to assemble "
+ "authentication string.");
+ mongoc_client_destroy(node->client);
+ node->client = NULL;
+ node->connected = 0;
+ return -1;
}
- if (node->timeout > 0) {
- status = mongo_set_op_timeout (node->conn, node->timeout);
- if (status != MONGO_OK) {
- WARNING ("write_mongodb plugin: mongo_set_op_timeout(%i) failed: %s",
- node->timeout, node->conn->errstr);
- }
+ node->client = mongoc_client_new(uri);
+ if (!node->client) {
+ ERROR("write_mongodb plugin: Connecting to [%s]:%d failed.", node->host,
+ node->port);
+ node->connected = 0;
+ sfree(uri);
+ return -1;
}
+ sfree(uri);
}
- /* Assert if the connection has been established */
- assert (mongo_is_connected (node->conn));
-
- #if MONGO_MINOR >= 6
- /* There was an API change in 0.6.0 as linked below */
- /* https://github.com/mongodb/mongo-c-driver/blob/master/HISTORY.md */
- status = mongo_insert (node->conn, collection_name, bson_record, NULL);
- #else
- status = mongo_insert (node->conn, collection_name, bson_record);
- #endif
-
- 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
- ERROR ("write_mongodb plugin: Invalid BSON structure, error = %#x",
- (unsigned int) bson_record->err);
+ node->database = mongoc_client_get_database(node->client, "collectd");
+ if (!node->database) {
+ ERROR("write_mongodb plugin: error creating/getting database");
+ mongoc_client_destroy(node->client);
+ node->client = NULL;
+ node->connected = 0;
+ return -1;
+ }
+
+ node->connected = 1;
+ return 0;
+} /* }}} int wm_initialize */
+
+static int wm_write(const data_set_t *ds, /* {{{ */
+ const value_list_t *vl, user_data_t *ud) {
+ wm_node_t *node = ud->data;
+ mongoc_collection_t *collection = NULL;
+ bson_t *bson_record;
+ bson_error_t error;
+ int status;
+
+ bson_record = wm_create_bson(ds, vl, node->store_rates);
+ if (!bson_record) {
+ ERROR("write_mongodb plugin: error making insert bson");
+ return -1;
+ }
+
+ pthread_mutex_lock(&node->lock);
+ if (wm_initialize(node) < 0) {
+ ERROR("write_mongodb plugin: error making connection to server");
+ pthread_mutex_unlock(&node->lock);
+ bson_destroy(bson_record);
+ return -1;
+ }
- /* Disconnect except on data errors. */
- if ((node->conn->err != MONGO_BSON_INVALID)
- && (node->conn->err != MONGO_BSON_NOT_FINISHED))
- mongo_destroy (node->conn);
+ collection =
+ mongoc_client_get_collection(node->client, "collectd", vl->plugin);
+ if (!collection) {
+ ERROR("write_mongodb plugin: error creating/getting collection");
+ mongoc_database_destroy(node->database);
+ mongoc_client_destroy(node->client);
+ node->database = NULL;
+ node->client = NULL;
+ node->connected = 0;
+ pthread_mutex_unlock(&node->lock);
+ bson_destroy(bson_record);
+ return -1;
}
- pthread_mutex_unlock (&node->lock);
+ status = mongoc_collection_insert(collection, MONGOC_INSERT_NONE, bson_record,
+ NULL, &error);
+
+ if (!status) {
+ ERROR("write_mongodb plugin: error inserting record: %s", error.message);
+ mongoc_database_destroy(node->database);
+ mongoc_client_destroy(node->client);
+ node->database = NULL;
+ node->client = NULL;
+ node->connected = 0;
+ pthread_mutex_unlock(&node->lock);
+ bson_destroy(bson_record);
+ mongoc_collection_destroy(collection);
+ return -1;
+ }
/* free our resource as not to leak memory */
- bson_destroy (bson_record); /* matches bson_init() */
- bson_dealloc (bson_record); /* matches bson_alloc() */
+ mongoc_collection_destroy(collection);
+
+ pthread_mutex_unlock(&node->lock);
+
+ bson_destroy(bson_record);
- return (0);
+ return 0;
} /* }}} int wm_write */
-static void wm_config_free (void *ptr) /* {{{ */
+static void wm_config_free(void *ptr) /* {{{ */
{
wm_node_t *node = ptr;
if (node == NULL)
return;
- if (mongo_is_connected (node->conn))
- mongo_destroy (node->conn);
+ mongoc_database_destroy(node->database);
+ mongoc_client_destroy(node->client);
+ node->database = NULL;
+ node->client = NULL;
+ node->connected = 0;
- sfree (node->host);
- sfree (node);
+ sfree(node->host);
+ sfree(node);
} /* }}} void wm_config_free */
-static int wm_config_node (oconfig_item_t *ci) /* {{{ */
+static int wm_config_node(oconfig_item_t *ci) /* {{{ */
{
wm_node_t *node;
int status;
- node = calloc (1, sizeof (*node));
+ node = calloc(1, sizeof(*node));
if (node == NULL)
- return (ENOMEM);
- mongo_init (node->conn);
- node->host = NULL;
+ return ENOMEM;
+ mongoc_init();
+ node->host = strdup("localhost");
+ if (node->host == NULL) {
+ sfree(node);
+ return ENOMEM;
+ }
+ node->port = MONGOC_DEFAULT_PORT;
node->store_rates = 1;
- pthread_mutex_init (&node->lock, /* attr = */ NULL);
+ pthread_mutex_init(&node->lock, /* attr = */ NULL);
- status = cf_util_get_string_buffer (ci, node->name, sizeof (node->name));
+ status = cf_util_get_string_buffer(ci, node->name, sizeof(node->name));
- if (status != 0)
- {
- sfree (node);
- return (status);
+ if (status != 0) {
+ sfree(node->host);
+ sfree(node);
+ return status;
}
- for (int i = 0; i < ci->children_num; i++)
- {
+ for (int i = 0; i < ci->children_num; i++) {
oconfig_item_t *child = ci->children + i;
- 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)
- {
+ 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 if (strcasecmp ("StoreRates", child->key) == 0)
- status = cf_util_get_boolean (child, &node->store_rates);
- else if (strcasecmp ("Database", child->key) == 0)
- status = cf_util_get_string (child, &node->db);
- else if (strcasecmp ("User", child->key) == 0)
- status = cf_util_get_string (child, &node->user);
- else if (strcasecmp ("Password", child->key) == 0)
- status = cf_util_get_string (child, &node->passwd);
+ } else if (strcasecmp("Timeout", child->key) == 0)
+ status = cf_util_get_int(child, &node->timeout);
+ else if (strcasecmp("StoreRates", child->key) == 0)
+ status = cf_util_get_boolean(child, &node->store_rates);
+ else if (strcasecmp("Database", child->key) == 0)
+ status = cf_util_get_string(child, &node->db);
+ else if (strcasecmp("User", child->key) == 0)
+ status = cf_util_get_string(child, &node->user);
+ else if (strcasecmp("Password", child->key) == 0)
+ status = cf_util_get_string(child, &node->passwd);
else
- WARNING ("write_mongodb plugin: Ignoring unknown config option \"%s\".",
- child->key);
+ WARNING("write_mongodb plugin: Ignoring unknown config option \"%s\".",
+ child->key);
if (status != 0)
break;
} /* for (i = 0; i < ci->children_num; i++) */
- if ((node->db != NULL) || (node->user != NULL) || (node->passwd != NULL))
- {
- if ((node->db == NULL) || (node->user == NULL) || (node->passwd == NULL))
- {
- WARNING ("write_mongodb plugin: Authentication requires the "
+ if ((node->db != NULL) || (node->user != NULL) || (node->passwd != NULL)) {
+ if ((node->db == NULL) || (node->user == NULL) || (node->passwd == NULL)) {
+ WARNING(
+ "write_mongodb plugin: Authentication requires the "
"\"Database\", \"User\" and \"Password\" options to be specified, "
"but at last one of them is missing. Authentication will NOT be "
"used.");
- sfree (node->db);
- sfree (node->user);
- sfree (node->passwd);
+ sfree(node->db);
+ sfree(node->user);
+ sfree(node->passwd);
}
}
- if (status == 0)
- {
- char cb_name[DATA_MAX_NAME_LEN];
-
- ssnprintf (cb_name, sizeof (cb_name), "write_mongodb/%s", node->name);
+ if (status == 0) {
+ char cb_name[sizeof("write_mongodb/") + DATA_MAX_NAME_LEN];
- user_data_t ud = {
- .data = node,
- .free_func = wm_config_free
- };
+ snprintf(cb_name, sizeof(cb_name), "write_mongodb/%s", node->name);
- status = plugin_register_write (cb_name, wm_write, &ud);
- INFO ("write_mongodb plugin: registered write plugin %s %d",cb_name,status);
+ status =
+ plugin_register_write(cb_name, wm_write,
+ &(user_data_t){
+ .data = node, .free_func = wm_config_free,
+ });
+ INFO("write_mongodb plugin: registered write plugin %s %d", cb_name,
+ status);
}
if (status != 0)
- wm_config_free (node);
+ wm_config_free(node);
- return (status);
+ return status;
} /* }}} int wm_config_node */
-static int wm_config (oconfig_item_t *ci) /* {{{ */
+static int wm_config(oconfig_item_t *ci) /* {{{ */
{
- for (int i = 0; i < ci->children_num; i++)
- {
+ for (int i = 0; i < ci->children_num; i++) {
oconfig_item_t *child = ci->children + i;
- if (strcasecmp ("Node", child->key) == 0)
- wm_config_node (child);
+ 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);
+ WARNING("write_mongodb plugin: Ignoring unknown "
+ "configuration option \"%s\" at top level.",
+ child->key);
}
- return (0);
+ return 0;
} /* }}} int wm_config */
-void module_register (void)
-{
- plugin_register_complex_config ("write_mongodb", wm_config);
+void module_register(void) {
+ plugin_register_complex_config("write_mongodb", wm_config);
}
-
-/* vim: set sw=2 sts=2 tw=78 et fdm=marker : */
projects / collectd.git / blobdiff