|
1
|
|
|
<?php |
|
2
|
|
|
namespace Cmp\Queues\Domain\Event; |
|
3
|
|
|
|
|
4
|
|
|
use Cmp\Queues\Domain\Event\Exception\DomainEventException; |
|
5
|
|
|
use Cmp\Queues\Domain\Queue\Exception\TimeoutReaderException; |
|
6
|
|
|
use Cmp\Queues\Domain\Queue\QueueReader; |
|
7
|
|
|
use Psr\Log\LoggerInterface; |
|
8
|
|
|
|
|
9
|
|
|
class Subscriber |
|
10
|
|
|
{ |
|
11
|
|
|
/** |
|
12
|
|
|
* @var QueueReader |
|
13
|
|
|
*/ |
|
14
|
|
|
protected $queueReader; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* @var LoggerInterface |
|
18
|
|
|
*/ |
|
19
|
|
|
protected $logger; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* @var EventSubscriptor[] |
|
23
|
|
|
*/ |
|
24
|
|
|
protected $subscriptors = []; |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* Subscriber constructor. |
|
28
|
|
|
* @param QueueReader $queueReader |
|
29
|
|
|
*/ |
|
30
|
|
|
public function __construct(QueueReader $queueReader, LoggerInterface $logger) |
|
31
|
|
|
{ |
|
32
|
|
|
$this->queueReader = $queueReader; |
|
33
|
|
|
$this->logger = $logger; |
|
34
|
|
|
} |
|
35
|
|
|
|
|
36
|
|
|
/** |
|
37
|
|
|
* @param EventSubscriptor $eventSubscriptor |
|
38
|
|
|
* @return $this |
|
39
|
|
|
*/ |
|
40
|
|
|
public function subscribe(EventSubscriptor $eventSubscriptor) |
|
41
|
|
|
{ |
|
42
|
|
|
$this->subscriptors[] = $eventSubscriptor; |
|
43
|
|
|
return $this; |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
public function start($timeout=0) |
|
47
|
|
|
{ |
|
48
|
|
|
if(!isset($this->subscriptors[0])) { |
|
49
|
|
|
throw new DomainEventException('You must add at least 1 EventSubscriptor in order to publish start reading from queue.'); |
|
50
|
|
|
} |
|
51
|
|
|
|
|
52
|
|
|
while(true) { |
|
53
|
|
|
try { |
|
54
|
|
|
$this->queueReader->read(array($this, 'notify'), $timeout); |
|
55
|
|
|
} catch(TimeoutReaderException $e) { |
|
56
|
|
|
break; |
|
57
|
|
|
} |
|
58
|
|
|
} |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* @param DomainEvent $domainEvent |
|
63
|
|
|
*/ |
|
64
|
|
|
public function notify(DomainEvent $domainEvent) |
|
65
|
|
|
{ |
|
66
|
|
|
$this->logger->info('Domain Event received, notifying subscribers'); |
|
67
|
|
|
foreach($this->subscriptors as $subscriptor) { |
|
68
|
|
|
if($subscriptor->isSubscribed($domainEvent)) { |
|
69
|
|
|
$subscriptor->notify($domainEvent); |
|
70
|
|
|
} |
|
71
|
|
|
} |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* @return EventSubscriptor[] |
|
76
|
|
|
*/ |
|
77
|
|
|
public function getSubscriptors() |
|
78
|
|
|
{ |
|
79
|
|
|
return $this->subscriptors; |
|
80
|
|
|
} |
|
81
|
|
|
} |
CMProductions /
queues
