From: David Blundell <david.blundell@100percentit.com>
Date: Fri, 23 May 2014 19:13:52 +0000 (+0100)
Subject: Add support for durable AMQP queues
X-Git-Tag: collectd-5.5.0~301
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=845b9c75c76fa88bee62dac5596ec324360cf5ea

Add support for durable AMQP queues

The collectd amqp plugin allows setting messages as persistent but is hardcoded to create or use transient queues that are set to auto_delete.  This commit adds support for QueueDurable and QueueAutoDelete boolean values in the config file and changes the queue creation as appropriate.

If the values are not set in the config file, QueueDurable defaults to false and QueueAutoDelete defaults to true.

Tested with RabbitMQ 3.3.1
---

diff --git a/src/amqp.c b/src/amqp.c
index edd4f749..3f33ff78 100644
--- a/src/amqp.c
+++ b/src/amqp.c
@@ -79,6 +79,8 @@ struct camqp_config_s
     /* subscribe only */
     char   *exchange_type;
     char   *queue;
+    _Bool   queue_durable;
+    _Bool   queue_auto_delete;
 
     amqp_connection_state_t connection;
     pthread_mutex_t lock;
@@ -314,9 +316,9 @@ static int camqp_setup_queue (camqp_config_t *conf) /* {{{ */
             ? amqp_cstring_bytes (conf->queue)
             : AMQP_EMPTY_BYTES,
             /* passive     = */ 0,
-            /* durable     = */ 0,
+            /* durable     = */ conf->queue_durable,
             /* exclusive   = */ 0,
-            /* auto_delete = */ 1,
+            /* auto_delete = */ conf->queue_auto_delete,
             /* arguments   = */ AMQP_EMPTY_TABLE);
     if (qd_ret == NULL)
     {
@@ -885,6 +887,8 @@ static int camqp_config_connection (oconfig_item_t *ci, /* {{{ */
     /* subscribe only */
     conf->exchange_type = NULL;
     conf->queue = NULL;
+    conf->queue_durable = 0;
+    conf->queue_auto_delete = 1;
     /* general */
     conf->connection = NULL;
     pthread_mutex_init (&conf->lock, /* attr = */ NULL);
@@ -924,6 +928,10 @@ static int camqp_config_connection (oconfig_item_t *ci, /* {{{ */
             status = cf_util_get_string (child, &conf->exchange_type);
         else if ((strcasecmp ("Queue", child->key) == 0) && !publish)
             status = cf_util_get_string (child, &conf->queue);
+        else if (strcasecmp ("QueueDurable", child->key) == 0)
+            status = cf_util_get_boolean (child, &conf->queue_durable);
+        else if (strcasecmp ("QueueAutoDelete", child->key) == 0)
+            status = cf_util_get_boolean (child, &conf->queue_auto_delete);
         else if (strcasecmp ("RoutingKey", child->key) == 0)
             status = cf_util_get_string (child, &conf->routing_key);
         else if ((strcasecmp ("Persistent", child->key) == 0) && publish)