* 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 "utils_cache.h"
-#define MONGO_HAVE_STDINT 1
-#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 {
char name[DATA_MAX_NAME_LEN];
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);
+ bson_free(ret);
+ return NULL;
}
} 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_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_start_array(ret, "values"); /* {{{ */
+ BSON_APPEND_ARRAY_BEGIN(ret, "values", &subarray); /* {{{ */
for (int i = 0; i < ds->ds_num; i++) {
char key[16];
ssnprintf(key, sizeof(key), "%i", 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 %d",
+ ds->ds[i].type, i);
+ bson_free(ret);
+ return NULL;
+ }
}
- bson_append_finish_array(ret); /* }}} values */
+ bson_append_array_end(ret, &subarray); /* }}} values */
- bson_append_start_array(ret, "dstypes"); /* {{{ */
+ BSON_APPEND_ARRAY_BEGIN(ret, "dstypes", &subarray); /* {{{ */
for (int i = 0; i < ds->ds_num; i++) {
char key[16];
ssnprintf(key, sizeof(key), "%i", 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"); /* {{{ */
+ BSON_APPEND_ARRAY_BEGIN(ret, "dsnames", &subarray); /* {{{ */
for (int 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);
+ BSON_APPEND_UTF8(&subarray, key, ds->ds[i].name);
}
- bson_append_finish_array(ret); /* }}} dsnames */
-
- bson_finish(ret);
+ bson_append_array_end(ret, &subarray); /* }}} dsnames */
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 %zu", error_location);
+ bson_free(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) {
- wm_node_t *node = ud->data;
- char collection_name[512];
- bson *bson_record;
- int status;
+static int wm_initialize(wm_node_t *node) /* {{{ */
+{
+ char *uri;
+ size_t uri_length;
+ char const *format_string;
- ssnprintf(collection_name, sizeof(collection_name), "collectd.%s",
- vl->plugin);
+ if (node->connected) {
+ return 0;
+ }
- bson_record = wm_create_bson(ds, vl, node->store_rates);
- if (bson_record == NULL)
- return (ENOMEM);
+ INFO("write_mongodb plugin: Connecting to [%s]:%i",
+ (node->host != NULL) ? node->host : "localhost",
+ (node->port != 0) ? node->port : MONGOC_DEFAULT_PORT);
+
+ if ((node->db != NULL) && (node->user != NULL) && (node->passwd != NULL)) {
+ format_string = "mongodb://%s:%s@%s:%d/?authSource=%s";
+ uri_length = strlen(format_string) + strlen(node->user) +
+ strlen(node->passwd) + strlen(node->host) + 5 +
+ strlen(node->db) + 1;
+ if ((uri = calloc(sizeof(char), uri_length)) == 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;
+ }
+ ssnprintf(uri, uri_length, format_string, node->user, node->passwd,
+ node->host, node->port, node->db);
- pthread_mutex_lock(&node->lock);
+ node->client = mongoc_client_new(uri);
+ if (!node->client) {
+ ERROR("write_mongodb plugin: Authenticating to [%s]%i for database "
+ "\"%s\" as user \"%s\" failed.",
+ (node->host != NULL) ? node->host : "localhost",
+ (node->port != 0) ? node->port : MONGOC_DEFAULT_PORT, node->db,
+ node->user);
+ node->connected = 0;
+ sfree(uri);
+ return -1;
+ }
+ } else {
+ format_string = "mongodb://%s:%d";
+ uri_length = strlen(format_string) + strlen(node->host) + 5 + 1;
+ if ((uri = calloc(sizeof(char), uri_length)) == 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;
+ }
+ snprintf(uri, uri_length, format_string, node->host, node->port);
- 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) {
+ node->client = mongoc_client_new(uri);
+ if (!node->client) {
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);
+ (node->port != 0) ? node->port : MONGOC_DEFAULT_PORT);
+ node->connected = 0;
+ sfree(uri);
+ return -1;
}
+ }
+ sfree(uri);
+
+ 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;
+ }
- 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 "
- "\"%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->connected = 1;
+ return 0;
+} /* }}} int wm_initialize */
- 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);
- }
- }
+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;
}
- /* 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);
+ 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_free(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_free(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_free(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);
- return (0);
+ pthread_mutex_unlock(&node->lock);
+
+ bson_free(bson_record);
+
+ return 0;
} /* }}} int wm_write */
static void wm_config_free(void *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);
node = calloc(1, sizeof(*node));
if (node == NULL)
return (ENOMEM);
- mongo_init(node->conn);
+ mongoc_init();
node->host = NULL;
node->store_rates = 1;
pthread_mutex_init(&node->lock, /* attr = */ NULL);
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