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diff --git a/src/write_mongodb.c b/src/write_mongodb.c
--- /dev/null
+++ b/src/write_mongodb.c
@@ -0,0 +1,384 @@
+/**
+ * collectd - src/write_mongodb.c
+ * Copyright (C) 2010-2013 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 <octo at collectd.org>
+ * 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"
+#include "utils_cache.h"
+
+#include <pthread.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
+
+struct wm_node_s
+{
+ char name[DATA_MAX_NAME_LEN];
+
+ char *host;
+ int port;
+ int timeout;
+
+ /* Authentication information */
+ char *db;
+ char *user;
+ char *passwd;
+
+ _Bool store_rates;
+
+ mongo conn[1];
+ 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;
+ gauge_t *rates;
+ int i;
+
+ ret = bson_alloc (); /* matched by bson_dealloc() */
+ if (ret == NULL)
+ {
+ ERROR ("write_mongodb plugin: bson_create 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);
+ }
+ }
+ 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 (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);
+ else if (store_rates)
+ bson_append_double(ret, key, (double) rates[i]);
+ else if (ds->ds[i].type == DS_TYPE_COUNTER)
+ bson_append_long(ret, key, vl->values[i].counter);
+ else if (ds->ds[i].type == DS_TYPE_DERIVE)
+ bson_append_long(ret, 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_finish_array (ret); /* }}} values */
+
+ bson_append_start_array (ret, "dstypes"); /* {{{ */
+ for (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");
+ else
+ bson_append_string (ret, key, DS_TYPE_TO_STRING (ds->ds[i].type));
+ }
+ bson_append_finish_array (ret); /* }}} dstypes */
+
+ bson_append_start_array (ret, "dsnames"); /* {{{ */
+ for (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_finish_array (ret); /* }}} dsnames */
+
+ bson_finish (ret);
+
+ sfree (rates);
+ 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;
+
+ 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);
+ }
+
+ 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);
+ }
+ }
+
+ 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);
+ }
+ }
+ }
+
+ /* 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);
+
+ /* Disconnect except on data errors. */
+ if ((node->conn->err != MONGO_BSON_INVALID)
+ && (node->conn->err != MONGO_BSON_NOT_FINISHED))
+ mongo_destroy (node->conn);
+ }
+
+ pthread_mutex_unlock (&node->lock);
+
+ /* free our resource as not to leak memory */
+ bson_destroy (bson_record); /* matches bson_init() */
+ bson_dealloc (bson_record); /* matches bson_alloc() */
+
+ return (0);
+} /* }}} int wm_write */
+
+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);
+
+ sfree (node->host);
+ sfree (node);
+} /* }}} void wm_config_free */
+
+static int wm_config_node (oconfig_item_t *ci) /* {{{ */
+{
+ wm_node_t *node;
+ int status;
+ int i;
+
+ node = malloc (sizeof (*node));
+ if (node == NULL)
+ return (ENOMEM);
+ memset (node, 0, sizeof (*node));
+ mongo_init (node->conn);
+ node->host = NULL;
+ node->store_rates = 1;
+ pthread_mutex_init (&node->lock, /* attr = */ NULL);
+
+ status = cf_util_get_string_buffer (ci, node->name, sizeof (node->name));
+
+ if (status != 0)
+ {
+ sfree (node);
+ return (status);
+ }
+
+ for (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)
+ {
+ 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
+ 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 "
+ "\"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);
+ }
+ }
+
+ if (status == 0)
+ {
+ char cb_name[DATA_MAX_NAME_LEN];
+ user_data_t ud;
+
+ ssnprintf (cb_name, sizeof (cb_name), "write_mongodb/%s", node->name);
+
+ ud.data = node;
+ ud.free_func = wm_config_free;
+
+ status = plugin_register_write (cb_name, wm_write, &ud);
+ INFO ("write_mongodb plugin: registered write plugin %s %d",cb_name,status);
+ }
+
+ if (status != 0)
+ wm_config_free (node);
+
+ return (status);
+} /* }}} int wm_config_node */
+
+static int wm_config (oconfig_item_t *ci) /* {{{ */
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ 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);
+ }
+
+ return (0);
+} /* }}} int 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 : */