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 collectd.org>
32 #include "utils_cmd_putval.h"
33 #include "utils_format_json.h"
34 #include "utils_format_graphite.h"
37 #include <amqp_framing.h>
39 #ifdef HAVE_AMQP_TCP_SOCKET_H
40 # include <amqp_tcp_socket.h>
42 #ifdef HAVE_AMQP_SOCKET_H
43 # include <amqp_socket.h>
45 #ifdef HAVE_AMQP_TCP_SOCKET
46 #if defined HAVE_DECL_AMQP_SOCKET_CLOSE && !HAVE_DECL_AMQP_SOCKET_CLOSE
47 /* rabbitmq-c does not currently ship amqp_socket.h
48 * and, thus, does not define this function. */
49 int amqp_socket_close(amqp_socket_t *);
53 /* Defines for the delivery mode. I have no idea why they're not defined by the
55 #define CAMQP_DM_VOLATILE 1
56 #define CAMQP_DM_PERSISTENT 2
58 #define CAMQP_FORMAT_COMMAND 1
59 #define CAMQP_FORMAT_JSON 2
60 #define CAMQP_FORMAT_GRAPHITE 3
62 #define CAMQP_CHANNEL 1
81 /* Number of seconds to wait before connection is retried */
82 int connection_retry_delay;
85 uint8_t delivery_mode;
88 /* publish & graphite format only */
92 unsigned int graphite_flags;
98 _Bool queue_auto_delete;
100 amqp_connection_state_t connection;
101 pthread_mutex_t lock;
103 typedef struct camqp_config_s camqp_config_t;
108 static const char *def_host = "localhost";
109 static const char *def_vhost = "/";
110 static const char *def_user = "guest";
111 static const char *def_password = "guest";
112 static const char *def_exchange = "amq.fanout";
114 static pthread_t *subscriber_threads = NULL;
115 static size_t subscriber_threads_num = 0;
116 static _Bool subscriber_threads_running = 1;
118 #define CONF(c,f) (((c)->f != NULL) ? (c)->f : def_##f)
123 static void camqp_close_connection (camqp_config_t *conf) /* {{{ */
127 if ((conf == NULL) || (conf->connection == NULL))
130 sockfd = amqp_get_sockfd (conf->connection);
131 amqp_channel_close (conf->connection, CAMQP_CHANNEL, AMQP_REPLY_SUCCESS);
132 amqp_connection_close (conf->connection, AMQP_REPLY_SUCCESS);
133 amqp_destroy_connection (conf->connection);
135 conf->connection = NULL;
136 } /* }}} void camqp_close_connection */
138 static void camqp_config_free (void *ptr) /* {{{ */
140 camqp_config_t *conf = ptr;
145 camqp_close_connection (conf);
151 sfree (conf->password);
152 sfree (conf->exchange);
153 sfree (conf->exchange_type);
155 sfree (conf->routing_key);
156 sfree (conf->prefix);
157 sfree (conf->postfix);
161 } /* }}} void camqp_config_free */
163 static char *camqp_bytes_cstring (amqp_bytes_t *in) /* {{{ */
167 if ((in == NULL) || (in->bytes == NULL))
170 ret = malloc (in->len + 1);
174 memcpy (ret, in->bytes, in->len);
178 } /* }}} char *camqp_bytes_cstring */
180 static _Bool camqp_is_error (camqp_config_t *conf) /* {{{ */
184 r = amqp_get_rpc_reply (conf->connection);
185 if (r.reply_type == AMQP_RESPONSE_NORMAL)
189 } /* }}} _Bool camqp_is_error */
191 static char *camqp_strerror (camqp_config_t *conf, /* {{{ */
192 char *buffer, size_t buffer_size)
196 r = amqp_get_rpc_reply (conf->connection);
197 switch (r.reply_type)
199 case AMQP_RESPONSE_NORMAL:
200 sstrncpy (buffer, "Success", buffer_size);
203 case AMQP_RESPONSE_NONE:
204 sstrncpy (buffer, "Missing RPC reply type", buffer_size);
207 case AMQP_RESPONSE_LIBRARY_EXCEPTION:
208 #if HAVE_AMQP_RPC_REPLY_T_LIBRARY_ERRNO
210 return (sstrerror (r.library_errno, buffer, buffer_size));
213 return (sstrerror (r.library_error, buffer, buffer_size));
216 sstrncpy (buffer, "End of stream", buffer_size);
219 case AMQP_RESPONSE_SERVER_EXCEPTION:
220 if (r.reply.id == AMQP_CONNECTION_CLOSE_METHOD)
222 amqp_connection_close_t *m = r.reply.decoded;
223 char *tmp = camqp_bytes_cstring (&m->reply_text);
224 ssnprintf (buffer, buffer_size, "Server connection error %d: %s",
228 else if (r.reply.id == AMQP_CHANNEL_CLOSE_METHOD)
230 amqp_channel_close_t *m = r.reply.decoded;
231 char *tmp = camqp_bytes_cstring (&m->reply_text);
232 ssnprintf (buffer, buffer_size, "Server channel error %d: %s",
238 ssnprintf (buffer, buffer_size, "Server error method %#"PRIx32,
244 ssnprintf (buffer, buffer_size, "Unknown reply type %i",
249 } /* }}} char *camqp_strerror */
251 #if HAVE_AMQP_RPC_REPLY_T_LIBRARY_ERRNO
252 static int camqp_create_exchange (camqp_config_t *conf) /* {{{ */
254 amqp_exchange_declare_ok_t *ed_ret;
256 if (conf->exchange_type == NULL)
259 ed_ret = amqp_exchange_declare (conf->connection,
260 /* channel = */ CAMQP_CHANNEL,
261 /* exchange = */ amqp_cstring_bytes (conf->exchange),
262 /* type = */ amqp_cstring_bytes (conf->exchange_type),
265 /* auto_delete = */ 1,
266 /* arguments = */ AMQP_EMPTY_TABLE);
267 if ((ed_ret == NULL) && camqp_is_error (conf))
270 ERROR ("amqp plugin: amqp_exchange_declare failed: %s",
271 camqp_strerror (conf, errbuf, sizeof (errbuf)));
272 camqp_close_connection (conf);
276 INFO ("amqp plugin: Successfully created exchange \"%s\" "
278 conf->exchange, conf->exchange_type);
281 } /* }}} int camqp_create_exchange */
283 static int camqp_create_exchange (camqp_config_t *conf) /* {{{ */
285 amqp_exchange_declare_ok_t *ed_ret;
286 amqp_table_t argument_table;
287 struct amqp_table_entry_t_ argument_table_entries[1];
289 if (conf->exchange_type == NULL)
292 /* Valid arguments: "auto_delete", "internal" */
293 argument_table.num_entries = STATIC_ARRAY_SIZE (argument_table_entries);
294 argument_table.entries = argument_table_entries;
295 argument_table_entries[0].key = amqp_cstring_bytes ("auto_delete");
296 argument_table_entries[0].value.kind = AMQP_FIELD_KIND_BOOLEAN;
297 argument_table_entries[0].value.value.boolean = 1;
299 ed_ret = amqp_exchange_declare (conf->connection,
300 /* channel = */ CAMQP_CHANNEL,
301 /* exchange = */ amqp_cstring_bytes (conf->exchange),
302 /* type = */ amqp_cstring_bytes (conf->exchange_type),
305 #if defined(AMQP_VERSION) && AMQP_VERSION >= 0x00060000
306 /* auto delete = */ 0,
309 /* arguments = */ argument_table);
310 if ((ed_ret == NULL) && camqp_is_error (conf))
313 ERROR ("amqp plugin: amqp_exchange_declare failed: %s",
314 camqp_strerror (conf, errbuf, sizeof (errbuf)));
315 camqp_close_connection (conf);
319 INFO ("amqp plugin: Successfully created exchange \"%s\" "
321 conf->exchange, conf->exchange_type);
324 } /* }}} int camqp_create_exchange */
327 static int camqp_setup_queue (camqp_config_t *conf) /* {{{ */
329 amqp_queue_declare_ok_t *qd_ret;
330 amqp_basic_consume_ok_t *cm_ret;
332 qd_ret = amqp_queue_declare (conf->connection,
333 /* channel = */ CAMQP_CHANNEL,
334 /* queue = */ (conf->queue != NULL)
335 ? amqp_cstring_bytes (conf->queue)
338 /* durable = */ conf->queue_durable,
340 /* auto_delete = */ conf->queue_auto_delete,
341 /* arguments = */ AMQP_EMPTY_TABLE);
344 ERROR ("amqp plugin: amqp_queue_declare failed.");
345 camqp_close_connection (conf);
349 if (conf->queue == NULL)
351 conf->queue = camqp_bytes_cstring (&qd_ret->queue);
352 if (conf->queue == NULL)
354 ERROR ("amqp plugin: camqp_bytes_cstring failed.");
355 camqp_close_connection (conf);
359 INFO ("amqp plugin: Created queue \"%s\".", conf->queue);
361 DEBUG ("amqp plugin: Successfully created queue \"%s\".", conf->queue);
363 /* bind to an exchange */
364 if (conf->exchange != NULL)
366 amqp_queue_bind_ok_t *qb_ret;
368 assert (conf->queue != NULL);
369 qb_ret = amqp_queue_bind (conf->connection,
370 /* channel = */ CAMQP_CHANNEL,
371 /* queue = */ amqp_cstring_bytes (conf->queue),
372 /* exchange = */ amqp_cstring_bytes (conf->exchange),
373 /* routing_key = */ (conf->routing_key != NULL)
374 ? amqp_cstring_bytes (conf->routing_key)
376 /* arguments = */ AMQP_EMPTY_TABLE);
377 if ((qb_ret == NULL) && camqp_is_error (conf))
380 ERROR ("amqp plugin: amqp_queue_bind failed: %s",
381 camqp_strerror (conf, errbuf, sizeof (errbuf)));
382 camqp_close_connection (conf);
386 DEBUG ("amqp plugin: Successfully bound queue \"%s\" to exchange \"%s\".",
387 conf->queue, conf->exchange);
388 } /* if (conf->exchange != NULL) */
390 cm_ret = amqp_basic_consume (conf->connection,
391 /* channel = */ CAMQP_CHANNEL,
392 /* queue = */ amqp_cstring_bytes (conf->queue),
393 /* consumer_tag = */ AMQP_EMPTY_BYTES,
397 /* arguments = */ AMQP_EMPTY_TABLE
399 if ((cm_ret == NULL) && camqp_is_error (conf))
402 ERROR ("amqp plugin: amqp_basic_consume failed: %s",
403 camqp_strerror (conf, errbuf, sizeof (errbuf)));
404 camqp_close_connection (conf);
409 } /* }}} int camqp_setup_queue */
411 static int camqp_connect (camqp_config_t *conf) /* {{{ */
413 static time_t last_connect_time = 0;
415 amqp_rpc_reply_t reply;
417 #ifdef HAVE_AMQP_TCP_SOCKET
418 amqp_socket_t *socket;
423 if (conf->connection != NULL)
426 time_t now = time(NULL);
427 if (now < (last_connect_time + conf->connection_retry_delay))
429 DEBUG("amqp plugin: skipping connection retry, "
430 "ConnectionRetryDelay: %d", conf->connection_retry_delay);
435 DEBUG ("amqp plugin: retrying connection");
436 last_connect_time = now;
439 conf->connection = amqp_new_connection ();
440 if (conf->connection == NULL)
442 ERROR ("amqp plugin: amqp_new_connection failed.");
446 #ifdef HAVE_AMQP_TCP_SOCKET
447 # define CLOSE_SOCKET() /* amqp_destroy_connection() closes the socket for us */
448 /* TODO: add support for SSL using amqp_ssl_socket_new
449 * and related functions */
450 socket = amqp_tcp_socket_new (conf->connection);
453 ERROR ("amqp plugin: amqp_tcp_socket_new failed.");
454 amqp_destroy_connection (conf->connection);
455 conf->connection = NULL;
459 status = amqp_socket_open (socket, CONF(conf, host), conf->port);
464 ERROR ("amqp plugin: amqp_socket_open failed: %s",
465 sstrerror (status, errbuf, sizeof (errbuf)));
466 amqp_destroy_connection (conf->connection);
467 conf->connection = NULL;
470 #else /* HAVE_AMQP_TCP_SOCKET */
471 # define CLOSE_SOCKET() close(sockfd)
472 /* this interface is deprecated as of rabbitmq-c 0.4 */
473 sockfd = amqp_open_socket (CONF(conf, host), conf->port);
477 status = (-1) * sockfd;
478 ERROR ("amqp plugin: amqp_open_socket failed: %s",
479 sstrerror (status, errbuf, sizeof (errbuf)));
480 amqp_destroy_connection (conf->connection);
481 conf->connection = NULL;
484 amqp_set_sockfd (conf->connection, sockfd);
487 reply = amqp_login (conf->connection, CONF(conf, vhost),
488 /* channel max = */ 0,
489 /* frame max = */ 131072,
491 /* authentication = */ AMQP_SASL_METHOD_PLAIN,
492 CONF(conf, user), CONF(conf, password));
493 if (reply.reply_type != AMQP_RESPONSE_NORMAL)
495 ERROR ("amqp plugin: amqp_login (vhost = %s, user = %s) failed.",
496 CONF(conf, vhost), CONF(conf, user));
497 amqp_destroy_connection (conf->connection);
499 conf->connection = NULL;
503 amqp_channel_open (conf->connection, /* channel = */ 1);
504 /* FIXME: Is checking "reply.reply_type" really correct here? How does
505 * it get set? --octo */
506 if (reply.reply_type != AMQP_RESPONSE_NORMAL)
508 ERROR ("amqp plugin: amqp_channel_open failed.");
509 amqp_connection_close (conf->connection, AMQP_REPLY_SUCCESS);
510 amqp_destroy_connection (conf->connection);
512 conf->connection = NULL;
516 INFO ("amqp plugin: Successfully opened connection to vhost \"%s\" "
517 "on %s:%i.", CONF(conf, vhost), CONF(conf, host), conf->port);
519 status = camqp_create_exchange (conf);
524 return (camqp_setup_queue (conf));
526 } /* }}} int camqp_connect */
528 static int camqp_shutdown (void) /* {{{ */
532 DEBUG ("amqp plugin: Shutting down %zu subscriber threads.",
533 subscriber_threads_num);
535 subscriber_threads_running = 0;
536 for (i = 0; i < subscriber_threads_num; i++)
538 /* FIXME: Sending a signal is not very elegant here. Maybe find out how
539 * to use a timeout in the thread and check for the variable in regular
541 pthread_kill (subscriber_threads[i], SIGTERM);
542 pthread_join (subscriber_threads[i], /* retval = */ NULL);
545 subscriber_threads_num = 0;
546 sfree (subscriber_threads);
548 DEBUG ("amqp plugin: All subscriber threads exited.");
551 } /* }}} int camqp_shutdown */
556 static int camqp_read_body (camqp_config_t *conf, /* {{{ */
557 size_t body_size, const char *content_type)
559 char body[body_size + 1];
565 memset (body, 0, sizeof (body));
569 while (received < body_size)
571 status = amqp_simple_wait_frame (conf->connection, &frame);
575 status = (-1) * status;
576 ERROR ("amqp plugin: amqp_simple_wait_frame failed: %s",
577 sstrerror (status, errbuf, sizeof (errbuf)));
578 camqp_close_connection (conf);
582 if (frame.frame_type != AMQP_FRAME_BODY)
584 NOTICE ("amqp plugin: Unexpected frame type: %#"PRIx8,
589 if ((body_size - received) < frame.payload.body_fragment.len)
591 WARNING ("amqp plugin: Body is larger than indicated by header.");
595 memcpy (body_ptr, frame.payload.body_fragment.bytes,
596 frame.payload.body_fragment.len);
597 body_ptr += frame.payload.body_fragment.len;
598 received += frame.payload.body_fragment.len;
599 } /* while (received < body_size) */
601 if (strcasecmp ("text/collectd", content_type) == 0)
603 status = handle_putval (stderr, body);
605 ERROR ("amqp plugin: handle_putval failed with status %i.",
609 else if (strcasecmp ("application/json", content_type) == 0)
611 ERROR ("amqp plugin: camqp_read_body: Parsing JSON data has not "
612 "been implemented yet. FIXME!");
617 ERROR ("amqp plugin: camqp_read_body: Unknown content type \"%s\".",
624 } /* }}} int camqp_read_body */
626 static int camqp_read_header (camqp_config_t *conf) /* {{{ */
630 amqp_basic_properties_t *properties;
633 status = amqp_simple_wait_frame (conf->connection, &frame);
637 status = (-1) * status;
638 ERROR ("amqp plugin: amqp_simple_wait_frame failed: %s",
639 sstrerror (status, errbuf, sizeof (errbuf)));
640 camqp_close_connection (conf);
644 if (frame.frame_type != AMQP_FRAME_HEADER)
646 NOTICE ("amqp plugin: Unexpected frame type: %#"PRIx8,
651 properties = frame.payload.properties.decoded;
652 content_type = camqp_bytes_cstring (&properties->content_type);
653 if (content_type == NULL)
655 ERROR ("amqp plugin: Unable to determine content type.");
659 status = camqp_read_body (conf,
660 (size_t) frame.payload.properties.body_size,
663 sfree (content_type);
665 } /* }}} int camqp_read_header */
667 static void *camqp_subscribe_thread (void *user_data) /* {{{ */
669 camqp_config_t *conf = user_data;
672 cdtime_t interval = plugin_get_interval ();
674 while (subscriber_threads_running)
678 status = camqp_connect (conf);
681 struct timespec ts_interval;
682 ERROR ("amqp plugin: camqp_connect failed. "
683 "Will sleep for %.3f seconds.",
684 CDTIME_T_TO_DOUBLE (interval));
685 CDTIME_T_TO_TIMESPEC (interval, &ts_interval);
686 nanosleep (&ts_interval, /* remaining = */ NULL);
690 status = amqp_simple_wait_frame (conf->connection, &frame);
693 struct timespec ts_interval;
694 ERROR ("amqp plugin: amqp_simple_wait_frame failed. "
695 "Will sleep for %.3f seconds.",
696 CDTIME_T_TO_DOUBLE (interval));
697 camqp_close_connection (conf);
698 CDTIME_T_TO_TIMESPEC (interval, &ts_interval);
699 nanosleep (&ts_interval, /* remaining = */ NULL);
703 if (frame.frame_type != AMQP_FRAME_METHOD)
705 DEBUG ("amqp plugin: Unexpected frame type: %#"PRIx8,
710 if (frame.payload.method.id != AMQP_BASIC_DELIVER_METHOD)
712 DEBUG ("amqp plugin: Unexpected method id: %#"PRIx32,
713 frame.payload.method.id);
717 camqp_read_header (conf);
719 amqp_maybe_release_buffers (conf->connection);
720 } /* while (subscriber_threads_running) */
722 camqp_config_free (conf);
725 } /* }}} void *camqp_subscribe_thread */
727 static int camqp_subscribe_init (camqp_config_t *conf) /* {{{ */
732 tmp = realloc (subscriber_threads,
733 sizeof (*subscriber_threads) * (subscriber_threads_num + 1));
736 ERROR ("amqp plugin: realloc failed.");
737 sfree (subscriber_threads);
740 subscriber_threads = tmp;
741 tmp = subscriber_threads + subscriber_threads_num;
742 memset (tmp, 0, sizeof (*tmp));
744 status = plugin_thread_create (tmp, /* attr = */ NULL,
745 camqp_subscribe_thread, conf);
749 ERROR ("amqp plugin: pthread_create failed: %s",
750 sstrerror (status, errbuf, sizeof (errbuf)));
754 subscriber_threads_num++;
757 } /* }}} int camqp_subscribe_init */
762 /* XXX: You must hold "conf->lock" when calling this function! */
763 static int camqp_write_locked (camqp_config_t *conf, /* {{{ */
764 const char *buffer, const char *routing_key)
766 amqp_basic_properties_t props = { 0 };
769 status = camqp_connect (conf);
773 props._flags = AMQP_BASIC_CONTENT_TYPE_FLAG
774 | AMQP_BASIC_DELIVERY_MODE_FLAG
775 | AMQP_BASIC_APP_ID_FLAG;
776 if (conf->format == CAMQP_FORMAT_COMMAND)
777 props.content_type = amqp_cstring_bytes("text/collectd");
778 else if (conf->format == CAMQP_FORMAT_JSON)
779 props.content_type = amqp_cstring_bytes("application/json");
780 else if (conf->format == CAMQP_FORMAT_GRAPHITE)
781 props.content_type = amqp_cstring_bytes("text/graphite");
784 props.delivery_mode = conf->delivery_mode;
785 props.app_id = amqp_cstring_bytes("collectd");
787 status = amqp_basic_publish(conf->connection,
789 amqp_cstring_bytes(CONF(conf, exchange)),
790 amqp_cstring_bytes (routing_key),
794 amqp_cstring_bytes(buffer));
797 ERROR ("amqp plugin: amqp_basic_publish failed with status %i.",
799 camqp_close_connection (conf);
803 } /* }}} int camqp_write_locked */
805 static int camqp_write (const data_set_t *ds, const value_list_t *vl, /* {{{ */
806 user_data_t *user_data)
808 camqp_config_t *conf = user_data->data;
809 char routing_key[6 * DATA_MAX_NAME_LEN];
810 char buffer[8192] = { 0 };
813 if ((ds == NULL) || (vl == NULL) || (conf == NULL))
816 if (conf->routing_key != NULL)
818 sstrncpy (routing_key, conf->routing_key, sizeof (routing_key));
823 ssnprintf (routing_key, sizeof (routing_key), "collectd/%s/%s/%s/%s/%s",
825 vl->plugin, vl->plugin_instance,
826 vl->type, vl->type_instance);
828 /* Switch slashes (the only character forbidden by collectd) and dots
829 * (the separation character used by AMQP). */
830 for (i = 0; routing_key[i] != 0; i++)
832 if (routing_key[i] == '.')
833 routing_key[i] = '/';
834 else if (routing_key[i] == '/')
835 routing_key[i] = '.';
839 if (conf->format == CAMQP_FORMAT_COMMAND)
841 status = create_putval (buffer, sizeof (buffer), ds, vl);
844 ERROR ("amqp plugin: create_putval failed with status %i.",
849 else if (conf->format == CAMQP_FORMAT_JSON)
851 size_t bfree = sizeof (buffer);
854 format_json_initialize (buffer, &bfill, &bfree);
855 format_json_value_list (buffer, &bfill, &bfree, ds, vl, conf->store_rates);
856 format_json_finalize (buffer, &bfill, &bfree);
858 else if (conf->format == CAMQP_FORMAT_GRAPHITE)
860 status = format_graphite (buffer, sizeof (buffer), ds, vl,
861 conf->prefix, conf->postfix, conf->escape_char,
862 conf->graphite_flags);
865 ERROR ("amqp plugin: format_graphite failed with status %i.",
872 ERROR ("amqp plugin: Invalid format (%i).", conf->format);
876 pthread_mutex_lock (&conf->lock);
877 status = camqp_write_locked (conf, buffer, routing_key);
878 pthread_mutex_unlock (&conf->lock);
881 } /* }}} int camqp_write */
886 static int camqp_config_set_format (oconfig_item_t *ci, /* {{{ */
887 camqp_config_t *conf)
893 status = cf_util_get_string (ci, &string);
897 assert (string != NULL);
898 if (strcasecmp ("Command", string) == 0)
899 conf->format = CAMQP_FORMAT_COMMAND;
900 else if (strcasecmp ("JSON", string) == 0)
901 conf->format = CAMQP_FORMAT_JSON;
902 else if (strcasecmp ("Graphite", string) == 0)
903 conf->format = CAMQP_FORMAT_GRAPHITE;
906 WARNING ("amqp plugin: Invalid format string: %s",
913 } /* }}} int config_set_string */
915 static int camqp_config_connection (oconfig_item_t *ci, /* {{{ */
918 camqp_config_t *conf;
922 conf = calloc (1, sizeof (*conf));
925 ERROR ("amqp plugin: calloc failed.");
929 /* Initialize "conf" {{{ */
930 conf->publish = publish;
932 conf->format = CAMQP_FORMAT_COMMAND;
937 conf->password = NULL;
938 conf->exchange = NULL;
939 conf->routing_key = NULL;
940 conf->connection_retry_delay = 0;
943 conf->delivery_mode = CAMQP_DM_VOLATILE;
944 conf->store_rates = 0;
945 conf->graphite_flags = 0;
946 /* publish & graphite only */
948 conf->postfix = NULL;
949 conf->escape_char = '_';
951 conf->exchange_type = NULL;
953 conf->queue_durable = 0;
954 conf->queue_auto_delete = 1;
956 conf->connection = NULL;
957 pthread_mutex_init (&conf->lock, /* attr = */ NULL);
960 status = cf_util_get_string (ci, &conf->name);
967 for (i = 0; i < ci->children_num; i++)
969 oconfig_item_t *child = ci->children + i;
971 if (strcasecmp ("Host", child->key) == 0)
972 status = cf_util_get_string (child, &conf->host);
973 else if (strcasecmp ("Port", child->key) == 0)
975 status = cf_util_get_port_number (child);
982 else if (strcasecmp ("VHost", child->key) == 0)
983 status = cf_util_get_string (child, &conf->vhost);
984 else if (strcasecmp ("User", child->key) == 0)
985 status = cf_util_get_string (child, &conf->user);
986 else if (strcasecmp ("Password", child->key) == 0)
987 status = cf_util_get_string (child, &conf->password);
988 else if (strcasecmp ("Exchange", child->key) == 0)
989 status = cf_util_get_string (child, &conf->exchange);
990 else if ((strcasecmp ("ExchangeType", child->key) == 0) && !publish)
991 status = cf_util_get_string (child, &conf->exchange_type);
992 else if ((strcasecmp ("Queue", child->key) == 0) && !publish)
993 status = cf_util_get_string (child, &conf->queue);
994 else if ((strcasecmp ("QueueDurable", child->key) == 0) && !publish)
995 status = cf_util_get_boolean (child, &conf->queue_durable);
996 else if ((strcasecmp ("QueueAutoDelete", child->key) == 0) && !publish)
997 status = cf_util_get_boolean (child, &conf->queue_auto_delete);
998 else if (strcasecmp ("RoutingKey", child->key) == 0)
999 status = cf_util_get_string (child, &conf->routing_key);
1000 else if ((strcasecmp ("Persistent", child->key) == 0) && publish)
1003 status = cf_util_get_boolean (child, &tmp);
1005 conf->delivery_mode = CAMQP_DM_PERSISTENT;
1007 conf->delivery_mode = CAMQP_DM_VOLATILE;
1009 else if ((strcasecmp ("StoreRates", child->key) == 0) && publish)
1011 status = cf_util_get_boolean (child, &conf->store_rates);
1012 (void) cf_util_get_flag (child, &conf->graphite_flags,
1013 GRAPHITE_STORE_RATES);
1015 else if ((strcasecmp ("Format", child->key) == 0) && publish)
1016 status = camqp_config_set_format (child, conf);
1017 else if ((strcasecmp ("GraphiteSeparateInstances", child->key) == 0) && publish)
1018 status = cf_util_get_flag (child, &conf->graphite_flags,
1019 GRAPHITE_SEPARATE_INSTANCES);
1020 else if ((strcasecmp ("GraphiteAlwaysAppendDS", child->key) == 0) && publish)
1021 status = cf_util_get_flag (child, &conf->graphite_flags,
1022 GRAPHITE_ALWAYS_APPEND_DS);
1023 else if ((strcasecmp ("GraphitePrefix", child->key) == 0) && publish)
1024 status = cf_util_get_string (child, &conf->prefix);
1025 else if ((strcasecmp ("GraphitePostfix", child->key) == 0) && publish)
1026 status = cf_util_get_string (child, &conf->postfix);
1027 else if ((strcasecmp ("GraphiteEscapeChar", child->key) == 0) && publish)
1029 char *tmp_buff = NULL;
1030 status = cf_util_get_string (child, &tmp_buff);
1031 if (strlen (tmp_buff) > 1)
1032 WARNING ("amqp plugin: The option \"GraphiteEscapeChar\" handles "
1033 "only one character. Others will be ignored.");
1034 conf->escape_char = tmp_buff[0];
1037 else if (strcasecmp ("ConnectionRetryDelay", child->key) == 0)
1038 status = cf_util_get_int (child, &conf->connection_retry_delay);
1040 WARNING ("amqp plugin: Ignoring unknown "
1041 "configuration option \"%s\".", child->key);
1045 } /* for (i = 0; i < ci->children_num; i++) */
1047 if ((status == 0) && (conf->exchange == NULL))
1049 if (conf->exchange_type != NULL)
1050 WARNING ("amqp plugin: The option \"ExchangeType\" was given "
1051 "without the \"Exchange\" option. It will be ignored.");
1053 if (!publish && (conf->routing_key != NULL))
1054 WARNING ("amqp plugin: The option \"RoutingKey\" was given "
1055 "without the \"Exchange\" option. It will be ignored.");
1061 camqp_config_free (conf);
1065 if (conf->exchange != NULL)
1067 DEBUG ("amqp plugin: camqp_config_connection: exchange = %s;",
1074 user_data_t ud = { conf, camqp_config_free };
1076 ssnprintf (cbname, sizeof (cbname), "amqp/%s", conf->name);
1078 status = plugin_register_write (cbname, camqp_write, &ud);
1081 camqp_config_free (conf);
1087 status = camqp_subscribe_init (conf);
1090 camqp_config_free (conf);
1096 } /* }}} int camqp_config_connection */
1098 static int camqp_config (oconfig_item_t *ci) /* {{{ */
1102 for (i = 0; i < ci->children_num; i++)
1104 oconfig_item_t *child = ci->children + i;
1106 if (strcasecmp ("Publish", child->key) == 0)
1107 camqp_config_connection (child, /* publish = */ 1);
1108 else if (strcasecmp ("Subscribe", child->key) == 0)
1109 camqp_config_connection (child, /* publish = */ 0);
1111 WARNING ("amqp plugin: Ignoring unknown config option \"%s\".",
1113 } /* for (ci->children_num) */
1116 } /* }}} int camqp_config */
1118 void module_register (void)
1120 plugin_register_complex_config ("amqp", camqp_config);
1121 plugin_register_shutdown ("amqp", camqp_shutdown);
1122 } /* void module_register */
1124 /* vim: set sw=4 sts=4 et fdm=marker : */