|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* To change this license header, choose License Headers in Project Properties. |
|
5
|
|
|
* To change this template file, choose Tools | Templates |
|
6
|
|
|
* and open the template in the editor. |
|
7
|
|
|
*/ |
|
8
|
|
|
|
|
9
|
|
|
namespace Governor\Framework\EventStore\Filesystem; |
|
10
|
|
|
|
|
11
|
|
|
use Governor\Framework\Domain\GenericDomainEventMessage; |
|
12
|
|
|
use Governor\Framework\EventStore\EventStoreException; |
|
13
|
|
|
use Governor\Framework\Domain\DomainEventStreamInterface; |
|
14
|
|
|
use Governor\Framework\Serializer\SerializerInterface; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* Description of FilesystemDomainEventStream |
|
18
|
|
|
* |
|
19
|
|
|
* @author "David Kalosi" <[email protected]> |
|
20
|
|
|
* @license <a href="http://www.opensource.org/licenses/mit-license.php">MIT License</a> |
|
21
|
|
|
*/ |
|
22
|
|
|
class FilesystemDomainEventStream implements DomainEventStreamInterface |
|
23
|
|
|
{ |
|
24
|
|
|
|
|
25
|
|
|
protected $eventReader; |
|
26
|
|
|
protected $events; |
|
27
|
|
|
protected $serializer; |
|
28
|
|
|
|
|
29
|
2 |
View Code Duplication |
public function __construct(\SplFileObject $file, |
|
|
|
|
|
|
30
|
|
|
SerializerInterface $serializer) |
|
31
|
|
|
{ |
|
32
|
2 |
|
$this->eventReader = new FilesystemEventMessageReader($file); |
|
33
|
2 |
|
$this->events = new \SplDoublyLinkedList(); |
|
34
|
2 |
|
$this->serializer = $serializer; |
|
35
|
2 |
|
$this->doReadNext(); |
|
36
|
1 |
|
} |
|
37
|
|
|
|
|
38
|
2 |
|
public function hasNext() |
|
39
|
|
|
{ |
|
40
|
2 |
|
if ($this->events->isEmpty()) { |
|
41
|
2 |
|
$this->doReadNext(); |
|
42
|
2 |
|
} |
|
43
|
|
|
|
|
44
|
2 |
|
return !$this->events->isEmpty(); |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
2 |
|
public function next() |
|
48
|
|
|
{ |
|
49
|
2 |
|
$nextMessage = $this->events->shift(); |
|
50
|
|
|
|
|
51
|
2 |
|
if ($this->events->isEmpty()) { |
|
52
|
2 |
|
$this->doReadNext(); |
|
53
|
2 |
|
} |
|
54
|
|
|
|
|
55
|
2 |
|
return $nextMessage; |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
public function peek() |
|
59
|
|
|
{ |
|
60
|
|
|
return $this->events->top(); |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
3 |
|
private function doReadNext() |
|
64
|
|
|
{ |
|
65
|
|
|
try { |
|
66
|
3 |
|
if (null !== $event = $this->eventReader->readEventMessage()) { |
|
67
|
2 |
|
$payload = $this->serializer->deserialize($event->getPayload()); |
|
68
|
2 |
|
$metadata = $this->serializer->deserialize($event->getMetaData()); |
|
69
|
|
|
|
|
70
|
2 |
|
$message = new GenericDomainEventMessage($event->getAggregateIdentifier(), |
|
71
|
2 |
|
$event->getScn(), $payload, $metadata, |
|
72
|
2 |
|
$event->getEventIdentifier(), $event->getTimestamp()); |
|
73
|
2 |
|
$this->events->push($message); |
|
74
|
2 |
|
} |
|
75
|
3 |
|
} catch (\Exception $ex) { |
|
76
|
1 |
|
throw new EventStoreException("An error occurred while reading the event stream", |
|
77
|
1 |
|
0, $ex); |
|
78
|
|
|
} |
|
79
|
2 |
|
} |
|
80
|
|
|
|
|
81
|
|
|
} |
|
82
|
|
|
|
SmartGecko /
GovernorFramework
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.