2 * collectd - src/amqp.c
3 * Copyright (C) 2009 Sebastien Pahl
4 * Copyright (C) 2010-2012 Florian Forster
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Sebastien Pahl <sebastien.pahl at dotcloud.com>
26 * Florian Forster <octo at verplant.org>
32 #include "utils_cmd_putval.h"
33 #include "utils_format_json.h"
34 #include "utils_format_graphite.h"
39 #include <amqp_framing.h>
41 #ifdef HAVE_AMQP_TCP_SOCKET_H
42 # include <amqp_tcp_socket.h>
44 #ifdef HAVE_AMQP_SOCKET_H
45 # include <amqp_socket.h>
47 #ifdef HAVE_AMQP_TCP_SOCKET
48 #if defined HAVE_DECL_AMQP_SOCKET_CLOSE && !HAVE_DECL_AMQP_SOCKET_CLOSE
49 /* rabbitmq-c does not currently ship amqp_socket.h
50 * and, thus, does not define this function. */
51 int amqp_socket_close(amqp_socket_t *);
55 /* Defines for the delivery mode. I have no idea why they're not defined by the
57 #define CAMQP_DM_VOLATILE 1
58 #define CAMQP_DM_PERSISTENT 2
60 #define CAMQP_FORMAT_COMMAND 1
61 #define CAMQP_FORMAT_JSON 2
62 #define CAMQP_FORMAT_GRAPHITE 3
64 #define CAMQP_CHANNEL 1
84 uint8_t delivery_mode;
87 /* publish & graphite format only */
91 unsigned int graphite_flags;
97 amqp_connection_state_t connection;
100 typedef struct camqp_config_s camqp_config_t;
105 static const char *def_host = "localhost";
106 static const char *def_vhost = "/";
107 static const char *def_user = "guest";
108 static const char *def_password = "guest";
109 static const char *def_exchange = "amq.fanout";
111 static pthread_t *subscriber_threads = NULL;
112 static size_t subscriber_threads_num = 0;
113 static _Bool subscriber_threads_running = 1;
115 #define CONF(c,f) (((c)->f != NULL) ? (c)->f : def_##f)
120 static void camqp_close_connection (camqp_config_t *conf) /* {{{ */
124 if ((conf == NULL) || (conf->connection == NULL))
127 sockfd = amqp_get_sockfd (conf->connection);
128 amqp_channel_close (conf->connection, CAMQP_CHANNEL, AMQP_REPLY_SUCCESS);
129 amqp_connection_close (conf->connection, AMQP_REPLY_SUCCESS);
130 amqp_destroy_connection (conf->connection);
132 conf->connection = NULL;
133 } /* }}} void camqp_close_connection */
135 static void camqp_config_free (void *ptr) /* {{{ */
137 camqp_config_t *conf = ptr;
142 camqp_close_connection (conf);
148 sfree (conf->password);
149 sfree (conf->exchange);
150 sfree (conf->exchange_type);
152 sfree (conf->routing_key);
153 sfree (conf->prefix);
154 sfree (conf->postfix);
158 } /* }}} void camqp_config_free */
160 static char *camqp_bytes_cstring (amqp_bytes_t *in) /* {{{ */
164 if ((in == NULL) || (in->bytes == NULL))
167 ret = malloc (in->len + 1);
171 memcpy (ret, in->bytes, in->len);
175 } /* }}} char *camqp_bytes_cstring */
177 static _Bool camqp_is_error (camqp_config_t *conf) /* {{{ */
181 r = amqp_get_rpc_reply (conf->connection);
182 if (r.reply_type == AMQP_RESPONSE_NORMAL)
186 } /* }}} _Bool camqp_is_error */
188 static char *camqp_strerror (camqp_config_t *conf, /* {{{ */
189 char *buffer, size_t buffer_size)
193 r = amqp_get_rpc_reply (conf->connection);
194 switch (r.reply_type)
196 case AMQP_RESPONSE_NORMAL:
197 sstrncpy (buffer, "Success", sizeof (buffer));
200 case AMQP_RESPONSE_NONE:
201 sstrncpy (buffer, "Missing RPC reply type", sizeof (buffer));
204 case AMQP_RESPONSE_LIBRARY_EXCEPTION:
205 #if HAVE_AMQP_RPC_REPLY_T_LIBRARY_ERRNO
207 return (sstrerror (r.library_errno, buffer, buffer_size));
210 return (sstrerror (r.library_error, buffer, buffer_size));
213 sstrncpy (buffer, "End of stream", sizeof (buffer));
216 case AMQP_RESPONSE_SERVER_EXCEPTION:
217 if (r.reply.id == AMQP_CONNECTION_CLOSE_METHOD)
219 amqp_connection_close_t *m = r.reply.decoded;
220 char *tmp = camqp_bytes_cstring (&m->reply_text);
221 ssnprintf (buffer, buffer_size, "Server connection error %d: %s",
225 else if (r.reply.id == AMQP_CHANNEL_CLOSE_METHOD)
227 amqp_channel_close_t *m = r.reply.decoded;
228 char *tmp = camqp_bytes_cstring (&m->reply_text);
229 ssnprintf (buffer, buffer_size, "Server channel error %d: %s",
235 ssnprintf (buffer, buffer_size, "Server error method %#"PRIx32,
241 ssnprintf (buffer, buffer_size, "Unknown reply type %i",
246 } /* }}} char *camqp_strerror */
248 #if HAVE_AMQP_RPC_REPLY_T_LIBRARY_ERRNO
249 static int camqp_create_exchange (camqp_config_t *conf) /* {{{ */
251 amqp_exchange_declare_ok_t *ed_ret;
253 if (conf->exchange_type == NULL)
256 ed_ret = amqp_exchange_declare (conf->connection,
257 /* channel = */ CAMQP_CHANNEL,
258 /* exchange = */ amqp_cstring_bytes (conf->exchange),
259 /* type = */ amqp_cstring_bytes (conf->exchange_type),
262 /* auto_delete = */ 1,
263 /* arguments = */ AMQP_EMPTY_TABLE);
264 if ((ed_ret == NULL) && camqp_is_error (conf))
267 ERROR ("amqp plugin: amqp_exchange_declare failed: %s",
268 camqp_strerror (conf, errbuf, sizeof (errbuf)));
269 camqp_close_connection (conf);
273 INFO ("amqp plugin: Successfully created exchange \"%s\" "
275 conf->exchange, conf->exchange_type);
278 } /* }}} int camqp_create_exchange */
280 static int camqp_create_exchange (camqp_config_t *conf) /* {{{ */
282 amqp_exchange_declare_ok_t *ed_ret;
283 amqp_table_t argument_table;
284 struct amqp_table_entry_t_ argument_table_entries[1];
286 if (conf->exchange_type == NULL)
289 /* Valid arguments: "auto_delete", "internal" */
290 argument_table.num_entries = STATIC_ARRAY_SIZE (argument_table_entries);
291 argument_table.entries = argument_table_entries;
292 argument_table_entries[0].key = amqp_cstring_bytes ("auto_delete");
293 argument_table_entries[0].value.kind = AMQP_FIELD_KIND_BOOLEAN;
294 argument_table_entries[0].value.value.boolean = 1;
296 ed_ret = amqp_exchange_declare (conf->connection,
297 /* channel = */ CAMQP_CHANNEL,
298 /* exchange = */ amqp_cstring_bytes (conf->exchange),
299 /* type = */ amqp_cstring_bytes (conf->exchange_type),
302 #if defined(AMQP_VERSION) && AMQP_VERSION >= 0x00060000
303 /* auto delete = */ 0,
306 /* arguments = */ argument_table);
307 if ((ed_ret == NULL) && camqp_is_error (conf))
310 ERROR ("amqp plugin: amqp_exchange_declare failed: %s",
311 camqp_strerror (conf, errbuf, sizeof (errbuf)));
312 camqp_close_connection (conf);
316 INFO ("amqp plugin: Successfully created exchange \"%s\" "
318 conf->exchange, conf->exchange_type);
321 } /* }}} int camqp_create_exchange */
324 static int camqp_setup_queue (camqp_config_t *conf) /* {{{ */
326 amqp_queue_declare_ok_t *qd_ret;
327 amqp_basic_consume_ok_t *cm_ret;
329 qd_ret = amqp_queue_declare (conf->connection,
330 /* channel = */ CAMQP_CHANNEL,
331 /* queue = */ (conf->queue != NULL)
332 ? amqp_cstring_bytes (conf->queue)
337 /* auto_delete = */ 1,
338 /* arguments = */ AMQP_EMPTY_TABLE);
341 ERROR ("amqp plugin: amqp_queue_declare failed.");
342 camqp_close_connection (conf);
346 if (conf->queue == NULL)
348 conf->queue = camqp_bytes_cstring (&qd_ret->queue);
349 if (conf->queue == NULL)
351 ERROR ("amqp plugin: camqp_bytes_cstring failed.");
352 camqp_close_connection (conf);
356 INFO ("amqp plugin: Created queue \"%s\".", conf->queue);
358 DEBUG ("amqp plugin: Successfully created queue \"%s\".", conf->queue);
360 /* bind to an exchange */
361 if (conf->exchange != NULL)
363 amqp_queue_bind_ok_t *qb_ret;
365 assert (conf->queue != NULL);
366 qb_ret = amqp_queue_bind (conf->connection,
367 /* channel = */ CAMQP_CHANNEL,
368 /* queue = */ amqp_cstring_bytes (conf->queue),
369 /* exchange = */ amqp_cstring_bytes (conf->exchange),
370 /* routing_key = */ (conf->routing_key != NULL)
371 ? amqp_cstring_bytes (conf->routing_key)
373 /* arguments = */ AMQP_EMPTY_TABLE);
374 if ((qb_ret == NULL) && camqp_is_error (conf))
377 ERROR ("amqp plugin: amqp_queue_bind failed: %s",
378 camqp_strerror (conf, errbuf, sizeof (errbuf)));
379 camqp_close_connection (conf);
383 DEBUG ("amqp plugin: Successfully bound queue \"%s\" to exchange \"%s\".",
384 conf->queue, conf->exchange);
385 } /* if (conf->exchange != NULL) */
387 cm_ret = amqp_basic_consume (conf->connection,
388 /* channel = */ CAMQP_CHANNEL,
389 /* queue = */ amqp_cstring_bytes (conf->queue),
390 /* consumer_tag = */ AMQP_EMPTY_BYTES,
394 /* arguments = */ AMQP_EMPTY_TABLE
396 if ((cm_ret == NULL) && camqp_is_error (conf))
399 ERROR ("amqp plugin: amqp_basic_consume failed: %s",
400 camqp_strerror (conf, errbuf, sizeof (errbuf)));
401 camqp_close_connection (conf);
406 } /* }}} int camqp_setup_queue */
408 static int camqp_connect (camqp_config_t *conf) /* {{{ */
410 amqp_rpc_reply_t reply;
412 #ifdef HAVE_AMQP_TCP_SOCKET
413 amqp_socket_t *socket;
418 if (conf->connection != NULL)
421 conf->connection = amqp_new_connection ();
422 if (conf->connection == NULL)
424 ERROR ("amqp plugin: amqp_new_connection failed.");
428 #ifdef HAVE_AMQP_TCP_SOCKET
429 # define CLOSE_SOCKET() /* amqp_destroy_connection() closes the socket for us */
430 /* TODO: add support for SSL using amqp_ssl_socket_new
431 * and related functions */
432 socket = amqp_tcp_socket_new (conf->connection);
435 ERROR ("amqp plugin: amqp_tcp_socket_new failed.");
436 amqp_destroy_connection (conf->connection);
437 conf->connection = NULL;
441 status = amqp_socket_open (socket, CONF(conf, host), conf->port);
446 ERROR ("amqp plugin: amqp_socket_open failed: %s",
447 sstrerror (status, errbuf, sizeof (errbuf)));
448 amqp_destroy_connection (conf->connection);
449 conf->connection = NULL;
452 #else /* HAVE_AMQP_TCP_SOCKET */
453 # define CLOSE_SOCKET() close(sockfd)
454 /* this interface is deprecated as of rabbitmq-c 0.4 */
455 sockfd = amqp_open_socket (CONF(conf, host), conf->port);
459 status = (-1) * sockfd;
460 ERROR ("amqp plugin: amqp_open_socket failed: %s",
461 sstrerror (status, errbuf, sizeof (errbuf)));
462 amqp_destroy_connection (conf->connection);
463 conf->connection = NULL;
466 amqp_set_sockfd (conf->connection, sockfd);
469 reply = amqp_login (conf->connection, CONF(conf, vhost),
470 /* channel max = */ 0,
471 /* frame max = */ 131072,
473 /* authentication = */ AMQP_SASL_METHOD_PLAIN,
474 CONF(conf, user), CONF(conf, password));
475 if (reply.reply_type != AMQP_RESPONSE_NORMAL)
477 ERROR ("amqp plugin: amqp_login (vhost = %s, user = %s) failed.",
478 CONF(conf, vhost), CONF(conf, user));
479 amqp_destroy_connection (conf->connection);
481 conf->connection = NULL;
485 amqp_channel_open (conf->connection, /* channel = */ 1);
486 /* FIXME: Is checking "reply.reply_type" really correct here? How does
487 * it get set? --octo */
488 if (reply.reply_type != AMQP_RESPONSE_NORMAL)
490 ERROR ("amqp plugin: amqp_channel_open failed.");
491 amqp_connection_close (conf->connection, AMQP_REPLY_SUCCESS);
492 amqp_destroy_connection (conf->connection);
494 conf->connection = NULL;
498 INFO ("amqp plugin: Successfully opened connection to vhost \"%s\" "
499 "on %s:%i.", CONF(conf, vhost), CONF(conf, host), conf->port);
501 status = camqp_create_exchange (conf);
506 return (camqp_setup_queue (conf));
508 } /* }}} int camqp_connect */
510 static int camqp_shutdown (void) /* {{{ */
514 DEBUG ("amqp plugin: Shutting down %zu subscriber threads.",
515 subscriber_threads_num);
517 subscriber_threads_running = 0;
518 for (i = 0; i < subscriber_threads_num; i++)
520 /* FIXME: Sending a signal is not very elegant here. Maybe find out how
521 * to use a timeout in the thread and check for the variable in regular
523 pthread_kill (subscriber_threads[i], SIGTERM);
524 pthread_join (subscriber_threads[i], /* retval = */ NULL);
527 subscriber_threads_num = 0;
528 sfree (subscriber_threads);
530 DEBUG ("amqp plugin: All subscriber threads exited.");
533 } /* }}} int camqp_shutdown */
538 static int camqp_read_body (camqp_config_t *conf, /* {{{ */
539 size_t body_size, const char *content_type)
541 char body[body_size + 1];
547 memset (body, 0, sizeof (body));
551 while (received < body_size)
553 status = amqp_simple_wait_frame (conf->connection, &frame);
557 status = (-1) * status;
558 ERROR ("amqp plugin: amqp_simple_wait_frame failed: %s",
559 sstrerror (status, errbuf, sizeof (errbuf)));
560 camqp_close_connection (conf);
564 if (frame.frame_type != AMQP_FRAME_BODY)
566 NOTICE ("amqp plugin: Unexpected frame type: %#"PRIx8,
571 if ((body_size - received) < frame.payload.body_fragment.len)
573 WARNING ("amqp plugin: Body is larger than indicated by header.");
577 memcpy (body_ptr, frame.payload.body_fragment.bytes,
578 frame.payload.body_fragment.len);
579 body_ptr += frame.payload.body_fragment.len;
580 received += frame.payload.body_fragment.len;
581 } /* while (received < body_size) */
583 if (strcasecmp ("text/collectd", content_type) == 0)
585 status = handle_putval (stderr, body);
587 ERROR ("amqp plugin: handle_putval failed with status %i.",
591 else if (strcasecmp ("application/json", content_type) == 0)
593 ERROR ("amqp plugin: camqp_read_body: Parsing JSON data has not "
594 "been implemented yet. FIXME!");
599 ERROR ("amqp plugin: camqp_read_body: Unknown content type \"%s\".",
606 } /* }}} int camqp_read_body */
608 static int camqp_read_header (camqp_config_t *conf) /* {{{ */
612 amqp_basic_properties_t *properties;
615 status = amqp_simple_wait_frame (conf->connection, &frame);
619 status = (-1) * status;
620 ERROR ("amqp plugin: amqp_simple_wait_frame failed: %s",
621 sstrerror (status, errbuf, sizeof (errbuf)));
622 camqp_close_connection (conf);
626 if (frame.frame_type != AMQP_FRAME_HEADER)
628 NOTICE ("amqp plugin: Unexpected frame type: %#"PRIx8,
633 properties = frame.payload.properties.decoded;
634 content_type = camqp_bytes_cstring (&properties->content_type);
635 if (content_type == NULL)
637 ERROR ("amqp plugin: Unable to determine content type.");
641 status = camqp_read_body (conf,
642 (size_t) frame.payload.properties.body_size,
645 sfree (content_type);
647 } /* }}} int camqp_read_header */
649 static void *camqp_subscribe_thread (void *user_data) /* {{{ */
651 camqp_config_t *conf = user_data;
654 cdtime_t interval = plugin_get_interval ();
656 while (subscriber_threads_running)
660 status = camqp_connect (conf);
663 struct timespec ts_interval;
664 ERROR ("amqp plugin: camqp_connect failed. "
665 "Will sleep for %.3f seconds.",
666 CDTIME_T_TO_DOUBLE (interval));
667 CDTIME_T_TO_TIMESPEC (interval, &ts_interval);
668 nanosleep (&ts_interval, /* remaining = */ NULL);
672 status = amqp_simple_wait_frame (conf->connection, &frame);
675 struct timespec ts_interval;
676 ERROR ("amqp plugin: amqp_simple_wait_frame failed. "
677 "Will sleep for %.3f seconds.",
678 CDTIME_T_TO_DOUBLE (interval));
679 camqp_close_connection (conf);
680 CDTIME_T_TO_TIMESPEC (interval, &ts_interval);
681 nanosleep (&ts_interval, /* remaining = */ NULL);
685 if (frame.frame_type != AMQP_FRAME_METHOD)
687 DEBUG ("amqp plugin: Unexpected frame type: %#"PRIx8,
692 if (frame.payload.method.id != AMQP_BASIC_DELIVER_METHOD)
694 DEBUG ("amqp plugin: Unexpected method id: %#"PRIx32,
695 frame.payload.method.id);
699 status = camqp_read_header (conf);
701 amqp_maybe_release_buffers (conf->connection);
702 } /* while (subscriber_threads_running) */
704 camqp_config_free (conf);
707 } /* }}} void *camqp_subscribe_thread */
709 static int camqp_subscribe_init (camqp_config_t *conf) /* {{{ */
714 tmp = realloc (subscriber_threads,
715 sizeof (*subscriber_threads) * (subscriber_threads_num + 1));
718 ERROR ("amqp plugin: realloc failed.");
719 camqp_config_free (conf);
722 subscriber_threads = tmp;
723 tmp = subscriber_threads + subscriber_threads_num;
724 memset (tmp, 0, sizeof (*tmp));
726 status = plugin_thread_create (tmp, /* attr = */ NULL,
727 camqp_subscribe_thread, conf);
731 ERROR ("amqp plugin: pthread_create failed: %s",
732 sstrerror (status, errbuf, sizeof (errbuf)));
733 camqp_config_free (conf);
737 subscriber_threads_num++;
740 } /* }}} int camqp_subscribe_init */
745 /* XXX: You must hold "conf->lock" when calling this function! */
746 static int camqp_write_locked (camqp_config_t *conf, /* {{{ */
747 const char *buffer, const char *routing_key)
749 amqp_basic_properties_t props;
752 status = camqp_connect (conf);
756 memset (&props, 0, sizeof (props));
757 props._flags = AMQP_BASIC_CONTENT_TYPE_FLAG
758 | AMQP_BASIC_DELIVERY_MODE_FLAG
759 | AMQP_BASIC_APP_ID_FLAG;
760 if (conf->format == CAMQP_FORMAT_COMMAND)
761 props.content_type = amqp_cstring_bytes("text/collectd");
762 else if (conf->format == CAMQP_FORMAT_JSON)
763 props.content_type = amqp_cstring_bytes("application/json");
764 else if (conf->format == CAMQP_FORMAT_GRAPHITE)
765 props.content_type = amqp_cstring_bytes("text/graphite");
768 props.delivery_mode = conf->delivery_mode;
769 props.app_id = amqp_cstring_bytes("collectd");
771 status = amqp_basic_publish(conf->connection,
773 amqp_cstring_bytes(CONF(conf, exchange)),
774 amqp_cstring_bytes (routing_key),
778 amqp_cstring_bytes(buffer));
781 ERROR ("amqp plugin: amqp_basic_publish failed with status %i.",
783 camqp_close_connection (conf);
787 } /* }}} int camqp_write_locked */
789 static int camqp_write (const data_set_t *ds, const value_list_t *vl, /* {{{ */
790 user_data_t *user_data)
792 camqp_config_t *conf = user_data->data;
793 char routing_key[6 * DATA_MAX_NAME_LEN];
797 if ((ds == NULL) || (vl == NULL) || (conf == NULL))
800 memset (buffer, 0, sizeof (buffer));
802 if (conf->routing_key != NULL)
804 sstrncpy (routing_key, conf->routing_key, sizeof (routing_key));
809 ssnprintf (routing_key, sizeof (routing_key), "collectd/%s/%s/%s/%s/%s",
811 vl->plugin, vl->plugin_instance,
812 vl->type, vl->type_instance);
814 /* Switch slashes (the only character forbidden by collectd) and dots
815 * (the separation character used by AMQP). */
816 for (i = 0; routing_key[i] != 0; i++)
818 if (routing_key[i] == '.')
819 routing_key[i] = '/';
820 else if (routing_key[i] == '/')
821 routing_key[i] = '.';
825 if (conf->format == CAMQP_FORMAT_COMMAND)
827 status = create_putval (buffer, sizeof (buffer), ds, vl);
830 ERROR ("amqp plugin: create_putval failed with status %i.",
835 else if (conf->format == CAMQP_FORMAT_JSON)
837 size_t bfree = sizeof (buffer);
840 format_json_initialize (buffer, &bfill, &bfree);
841 format_json_value_list (buffer, &bfill, &bfree, ds, vl, conf->store_rates);
842 format_json_finalize (buffer, &bfill, &bfree);
844 else if (conf->format == CAMQP_FORMAT_GRAPHITE)
846 status = format_graphite (buffer, sizeof (buffer), ds, vl,
847 conf->prefix, conf->postfix, conf->escape_char,
848 conf->graphite_flags);
851 ERROR ("amqp plugin: format_graphite failed with status %i.",
858 ERROR ("amqp plugin: Invalid format (%i).", conf->format);
862 pthread_mutex_lock (&conf->lock);
863 status = camqp_write_locked (conf, buffer, routing_key);
864 pthread_mutex_unlock (&conf->lock);
867 } /* }}} int camqp_write */
872 static int camqp_config_set_format (oconfig_item_t *ci, /* {{{ */
873 camqp_config_t *conf)
879 status = cf_util_get_string (ci, &string);
883 assert (string != NULL);
884 if (strcasecmp ("Command", string) == 0)
885 conf->format = CAMQP_FORMAT_COMMAND;
886 else if (strcasecmp ("JSON", string) == 0)
887 conf->format = CAMQP_FORMAT_JSON;
888 else if (strcasecmp ("Graphite", string) == 0)
889 conf->format = CAMQP_FORMAT_GRAPHITE;
892 WARNING ("amqp plugin: Invalid format string: %s",
899 } /* }}} int config_set_string */
901 static int camqp_config_connection (oconfig_item_t *ci, /* {{{ */
904 camqp_config_t *conf;
908 conf = malloc (sizeof (*conf));
911 ERROR ("amqp plugin: malloc failed.");
915 /* Initialize "conf" {{{ */
916 memset (conf, 0, sizeof (*conf));
917 conf->publish = publish;
919 conf->format = CAMQP_FORMAT_COMMAND;
924 conf->password = NULL;
925 conf->exchange = NULL;
926 conf->routing_key = NULL;
928 conf->delivery_mode = CAMQP_DM_VOLATILE;
929 conf->store_rates = 0;
930 /* publish & graphite only */
932 conf->postfix = NULL;
933 conf->escape_char = '_';
935 conf->exchange_type = NULL;
938 conf->connection = NULL;
939 pthread_mutex_init (&conf->lock, /* attr = */ NULL);
942 status = cf_util_get_string (ci, &conf->name);
949 for (i = 0; i < ci->children_num; i++)
951 oconfig_item_t *child = ci->children + i;
953 if (strcasecmp ("Host", child->key) == 0)
954 status = cf_util_get_string (child, &conf->host);
955 else if (strcasecmp ("Port", child->key) == 0)
957 status = cf_util_get_port_number (child);
964 else if (strcasecmp ("VHost", child->key) == 0)
965 status = cf_util_get_string (child, &conf->vhost);
966 else if (strcasecmp ("User", child->key) == 0)
967 status = cf_util_get_string (child, &conf->user);
968 else if (strcasecmp ("Password", child->key) == 0)
969 status = cf_util_get_string (child, &conf->password);
970 else if (strcasecmp ("Exchange", child->key) == 0)
971 status = cf_util_get_string (child, &conf->exchange);
972 else if ((strcasecmp ("ExchangeType", child->key) == 0) && !publish)
973 status = cf_util_get_string (child, &conf->exchange_type);
974 else if ((strcasecmp ("Queue", child->key) == 0) && !publish)
975 status = cf_util_get_string (child, &conf->queue);
976 else if (strcasecmp ("RoutingKey", child->key) == 0)
977 status = cf_util_get_string (child, &conf->routing_key);
978 else if ((strcasecmp ("Persistent", child->key) == 0) && publish)
981 status = cf_util_get_boolean (child, &tmp);
983 conf->delivery_mode = CAMQP_DM_PERSISTENT;
985 conf->delivery_mode = CAMQP_DM_VOLATILE;
987 else if ((strcasecmp ("StoreRates", child->key) == 0) && publish)
989 status = cf_util_get_boolean (child, &conf->store_rates);
990 (void) cf_util_get_flag (child, &conf->graphite_flags,
991 GRAPHITE_STORE_RATES);
993 else if ((strcasecmp ("Format", child->key) == 0) && publish)
994 status = camqp_config_set_format (child, conf);
995 else if ((strcasecmp ("GraphitePrefix", child->key) == 0) && publish)
996 status = cf_util_get_string (child, &conf->prefix);
997 else if ((strcasecmp ("GraphitePostfix", child->key) == 0) && publish)
998 status = cf_util_get_string (child, &conf->postfix);
999 else if ((strcasecmp ("GraphiteEscapeChar", child->key) == 0) && publish)
1001 char *tmp_buff = NULL;
1002 status = cf_util_get_string (child, &tmp_buff);
1003 if (strlen (tmp_buff) > 1)
1004 WARNING ("amqp plugin: The option \"GraphiteEscapeChar\" handles "
1005 "only one character. Others will be ignored.");
1006 conf->escape_char = tmp_buff[0];
1010 WARNING ("amqp plugin: Ignoring unknown "
1011 "configuration option \"%s\".", child->key);
1015 } /* for (i = 0; i < ci->children_num; i++) */
1017 if ((status == 0) && (conf->exchange == NULL))
1019 if (conf->exchange_type != NULL)
1020 WARNING ("amqp plugin: The option \"ExchangeType\" was given "
1021 "without the \"Exchange\" option. It will be ignored.");
1023 if (!publish && (conf->routing_key != NULL))
1024 WARNING ("amqp plugin: The option \"RoutingKey\" was given "
1025 "without the \"Exchange\" option. It will be ignored.");
1031 camqp_config_free (conf);
1035 if (conf->exchange != NULL)
1037 DEBUG ("amqp plugin: camqp_config_connection: exchange = %s;",
1044 user_data_t ud = { conf, camqp_config_free };
1046 ssnprintf (cbname, sizeof (cbname), "amqp/%s", conf->name);
1048 status = plugin_register_write (cbname, camqp_write, &ud);
1051 camqp_config_free (conf);
1057 status = camqp_subscribe_init (conf);
1060 camqp_config_free (conf);
1066 } /* }}} int camqp_config_connection */
1068 static int camqp_config (oconfig_item_t *ci) /* {{{ */
1072 for (i = 0; i < ci->children_num; i++)
1074 oconfig_item_t *child = ci->children + i;
1076 if (strcasecmp ("Publish", child->key) == 0)
1077 camqp_config_connection (child, /* publish = */ 1);
1078 else if (strcasecmp ("Subscribe", child->key) == 0)
1079 camqp_config_connection (child, /* publish = */ 0);
1081 WARNING ("amqp plugin: Ignoring unknown config option \"%s\".",
1083 } /* for (ci->children_num) */
1086 } /* }}} int camqp_config */
1088 void module_register (void)
1090 plugin_register_complex_config ("amqp", camqp_config);
1091 plugin_register_shutdown ("amqp", camqp_shutdown);
1092 } /* void module_register */
1094 /* vim: set sw=4 sts=4 et fdm=marker : */