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Enable json-specified objects in queue_item frames

This commit is contained in:
Mikael Nordfeldth 2013-10-25 18:15:34 +02:00
parent 2ef9beb4b1
commit e7a4ccb7b5
3 changed files with 54 additions and 20 deletions
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35
lib/dbqueuemanager.php
View File

@ -79,27 +79,28 @@ class DBQueueManager extends QueueManager
}
$queue = $qi->transport;
$item = $this->decode($qi->frame);
try {
$item = $this->decode($qi->frame);
} catch (Exception $e) {
$this->_log(LOG_INFO, "[$queue] Discarding: ".$e->getMessage());
$this->_done($qi);
return true;
}
if ($item) {
$rep = $this->logrep($item);
$this->_log(LOG_DEBUG, "Got $rep for transport $queue");
$handler = $this->getHandler($queue);
if ($handler) {
if ($handler->handle($item)) {
$this->_log(LOG_INFO, "[$queue:$rep] Successfully handled item");
$this->_done($qi);
} else {
$this->_log(LOG_INFO, "[$queue:$rep] Failed to handle item");
$this->_fail($qi);
}
} else {
$this->_log(LOG_INFO, "[$queue:$rep] No handler for queue $queue; discarding.");
$rep = $this->logrep($item);
$this->_log(LOG_DEBUG, "Got $rep for transport $queue");
$handler = $this->getHandler($queue);
if ($handler) {
if ($handler->handle($item)) {
$this->_log(LOG_INFO, "[$queue:$rep] Successfully handled item");
$this->_done($qi);
} else {
$this->_log(LOG_INFO, "[$queue:$rep] Failed to handle item");
$this->_fail($qi);
}
} else {
$this->_log(LOG_INFO, "[$queue] Got empty/deleted item, discarding");
$this->_log(LOG_INFO, "[$queue:$rep] No handler for queue $queue; discarding.");
$this->_done($qi);
}
return true;

34
lib/queuemanager.php
View File

@ -177,7 +177,39 @@ abstract class QueueManager extends IoManager
*/
protected function decode($frame)
{
return unserialize($frame);
$object = unserialize($frame);
// If it is a string, we really store a JSON object in there
if (is_string($object)) {
$json = json_decode($object);
if ($json === null) {
throw new Exception('Bad frame in queue item');
}
// The JSON object has a type parameter which contains the class
if (empty($json->type)) {
throw new Exception('Type not specified for queue item');
}
if (!is_a($json->type, 'Managed_DataObject', true)) {
throw new Exception('Managed_DataObject class does not exist for queue item');
}
// And each of these types should have a unique id (or uri)
if (isset($json->id) && !empty($json->id)) {
$object = call_user_func(array($json->type, 'getKV'), 'id', $json->id);
} elseif (isset($json->uri) && !empty($json->uri)) {
$object = call_user_func(array($json->type, 'getKV'), 'uri', $json->uri);
}
// But if no object was found, there's nothing we can handle
if (!$object instanceof Managed_DataObject) {
throw new Exception('Queue item frame referenced a non-existant object');
}
}
// If the frame was not a string, it's either an array or an object.
return $object;
}
/**

5
lib/stompqueuemanager.php
View File

@ -498,8 +498,9 @@ class StompQueueManager extends QueueManager
// @fixme detect failing site switches
$this->switchSite($site);
$item = $this->decode($message['payload']);
if (empty($item)) {
try {
$item = $this->decode($message['payload']);
} catch (Exception $e) {
$this->_log(LOG_ERR, "Skipping empty or deleted item in queue $queue from $host");
$this->stats('baditem', $queue);
return false;