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<?php
namespace Guzzle\Http;
use Guzzle\Common\Event;
use Guzzle\Common\HasDispatcherInterface;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
/**
* EntityBody decorator that emits events for read and write methods
*/
class IoEmittingEntityBody extends AbstractEntityBodyDecorator implements HasDispatcherInterface
{
/**
* @var EventDispatcherInterface
*/
protected $eventDispatcher;
/**
* {@inheritdoc}
*/
public static function getAllEvents()
{
return array('body.read', 'body.write');
}
/**
* {@inheritdoc}
* @codeCoverageIgnore
*/
public function setEventDispatcher(EventDispatcherInterface $eventDispatcher)
{
$this->eventDispatcher = $eventDispatcher;
return $this;
}
/**
* {@inheritdoc}
*/
public function getEventDispatcher()
{
if (!$this->eventDispatcher) {
$this->eventDispatcher = new EventDispatcher();
}
return $this->eventDispatcher;
}
/**
* {@inheritdoc}
*/
public function dispatch($eventName, array $context = array())
{
$this->getEventDispatcher()->dispatch($eventName, new Event($context));
}
/**
* {@inheritdoc}
* @codeCoverageIgnore
*/
public function addSubscriber(EventSubscriberInterface $subscriber)
{
$this->getEventDispatcher()->addSubscriber($subscriber);
return $this;
}
/**
* {@inheritdoc}
*/
public function read($length)
{
$event = array(
'body' => $this,
'length' => $length,
'read' => $this->body->read($length)
);
$this->dispatch('body.read', $event);
return $event['read'];
}
/**
* {@inheritdoc}
*/
public function write($string)
{
$event = array(
'body' => $this,
'write' => $string,
'result' => $this->body->write($string)
);
$this->dispatch('body.write', $event);
return $event['result'];
}
}
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