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Add a plugin/event/hook system

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chris.boulton 2011-03-27 18:42:46 +11:00
parent 4d4a5ffc89
commit 6f43fcfed8
10 changed files with 431 additions and 20 deletions
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85
lib/Resque/Job.php
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@ -1,5 +1,7 @@
<?php
require_once dirname(__FILE__) . '/Event.php';
require_once dirname(__FILE__) . '/Job/Status.php';
require_once dirname(__FILE__) . '/Job/DontPerform.php';
/**
* Resque job.
@ -25,6 +27,11 @@ class Resque_Job
* @var object Object containing details of the job.
*/
public $payload;
/**
* @var object Instance of the class performing work for this job.
*/
private $instance;
/**
* Instantiate a new instance of a job.
@ -109,15 +116,32 @@ class Resque_Job
$status = new Resque_Job_Status($this->payload['id']);
return $status->get();
}
/**
* Actually execute a job by calling the perform method on the class
* associated with the job with the supplied arguments.
* Get the arguments supplied to this job.
*
* @throws Resque_Exception When the job's class could not be found or it does not contain a perform method.
* @return array Array of arguments.
*/
public function perform()
public function getArguments()
{
if (!isset($this->payload['args'])) {
return array();
}
return $this->payload['args'];
}
/**
* Get the instantiated object for this job that will be performing work.
*
* @return object Instance of the object that this job belongs to.
*/
public function getInstance()
{
if (!is_null($this->instance)) {
return $this->instance;
}
if(!class_exists($this->payload['class'])) {
throw new Resque_Exception(
'Could not find job class ' . $this->payload['class'] . '.'
@ -130,18 +154,51 @@ class Resque_Job
);
}
$instance = new $this->payload['class'];
$instance->args = $this->payload['args'];
$this->instance = new $this->payload['class'];
$this->instance->job = $this;
$this->instance->args = $this->getArguments();
return $this->instance;
}
if(method_exists($instance, 'setUp')) {
$instance->setUp();
/**
* Actually execute a job by calling the perform method on the class
* associated with the job with the supplied arguments.
*
* @throws Resque_Exception When the job's class could not be found or it does not contain a perform method.
*/
public function perform()
{
$instance = $this->getInstance();
try {
Resque_Event::trigger('beforePerform', $this);
if(method_exists($instance, 'setUp')) {
$instance->setUp();
}
$instance->perform();
if(method_exists($instance, 'tearDown')) {
$instance->tearDown();
}
Resque_Event::trigger('afterPerform', $this);
}
$instance->perform();
if(method_exists($instance, 'tearDown')) {
$instance->tearDown();
// beforePerform/setUp have said don't perform this job. Return.
catch(Resque_Job_DontPerform $e) {
return false;
}
// Catch any other exception and raise the onFailure event. Rethrow
// the exception
catch(Exception $e) {
Resque_Event::trigger('onFailure', array(
'exception' => $e,
'job' => $this,
));
throw $e;
}
return true;
}
/**