|
1
|
|
|
<?php |
|
2
|
|
|
namespace SmoothPhp\EventDispatcher; |
|
3
|
|
|
|
|
4
|
|
|
use SmoothPhp\Contracts\EventDispatcher\EventDispatcher; |
|
5
|
|
|
use SmoothPhp\Contracts\EventDispatcher\Projection; |
|
6
|
|
|
use SmoothPhp\Contracts\EventDispatcher\Subscriber; |
|
7
|
|
|
|
|
8
|
|
|
/** |
|
9
|
|
|
* Class ProjectEnabledDispatcher |
|
10
|
|
|
* @package SmoothPhp\EventDispatcher |
|
11
|
|
|
* @author Simon Bennett <[email protected]> |
|
12
|
|
|
*/ |
|
13
|
|
|
final class ProjectEnabledDispatcher implements EventDispatcher |
|
14
|
|
|
{ |
|
15
|
|
|
/** |
|
16
|
|
|
* @var array |
|
17
|
|
|
*/ |
|
18
|
|
|
private $listeners = []; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* @param string $eventName |
|
22
|
|
|
* @param array $arguments |
|
23
|
|
|
* @param bool $runProjectionsOnly |
|
24
|
|
|
*/ |
|
25
|
24 |
|
public function dispatch($eventName, array $arguments, $runProjectionsOnly = false) |
|
26
|
|
|
{ |
|
27
|
24 |
|
if (!isset($this->listeners[$eventName])) { |
|
28
|
3 |
|
return; |
|
29
|
|
|
} |
|
30
|
21 |
|
foreach ($this->getListenersInOrder($eventName) as $listener) { |
|
31
|
21 |
|
if ($this->listenerCanRun($runProjectionsOnly, $listener)) { |
|
32
|
21 |
|
call_user_func_array($listener, $arguments); |
|
33
|
21 |
|
} |
|
34
|
21 |
|
} |
|
35
|
21 |
|
} |
|
36
|
|
|
|
|
37
|
|
|
/** |
|
38
|
|
|
* @param string $eventName |
|
39
|
|
|
* @param callable $callable |
|
40
|
|
|
* @param int $priority |
|
41
|
|
|
*/ |
|
42
|
24 |
|
public function addListener($eventName, callable $callable, $priority = 0) |
|
43
|
|
|
{ |
|
44
|
24 |
|
$dotEventName = str_replace('\\', '.', $eventName); |
|
45
|
24 |
|
$this->listeners[$dotEventName][$priority][] = $callable; |
|
46
|
24 |
|
unset($this->sorted[$dotEventName]); |
|
47
|
|
|
|
|
48
|
24 |
|
} |
|
49
|
|
|
|
|
50
|
|
|
|
|
51
|
|
|
/** |
|
52
|
|
|
* @param Subscriber $subscriber |
|
53
|
|
|
* @return void |
|
54
|
|
|
*/ |
|
55
|
6 |
|
public function addSubscriber(Subscriber $subscriber) |
|
56
|
|
|
{ |
|
57
|
6 |
|
foreach ($subscriber->getSubscribedEvents() as $eventName => $params) { |
|
58
|
6 |
|
if (is_string($params)) { |
|
59
|
3 |
|
$this->addListener($eventName, array($subscriber, $params)); |
|
60
|
6 |
|
} elseif (is_string($params[0])) { |
|
61
|
6 |
|
$this->addListener($eventName, array($subscriber, $params[0]), isset($params[1]) ? $params[1] : 0); |
|
62
|
6 |
|
} else { |
|
63
|
3 |
|
foreach ($params as $listener) { |
|
64
|
3 |
|
$this->addListener($eventName, array($subscriber, $listener[0]), isset($listener[1]) ? $listener[1] : 0); |
|
65
|
3 |
|
} |
|
66
|
|
|
} |
|
67
|
6 |
|
} |
|
68
|
6 |
|
} |
|
69
|
|
|
|
|
70
|
|
|
/** |
|
71
|
|
|
* @param $runProjectionsOnly |
|
72
|
|
|
* @param $listener |
|
73
|
|
|
* @return bool |
|
74
|
|
|
*/ |
|
75
|
21 |
|
protected function listenerCanRun($runProjectionsOnly, $listener) |
|
76
|
|
|
{ |
|
77
|
21 |
|
return !$runProjectionsOnly || (is_array($listener) && $listener[0] instanceof Projection); |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
/** |
|
81
|
|
|
* @param $eventName |
|
82
|
|
|
* @return array |
|
83
|
|
|
*/ |
|
84
|
21 |
|
protected function getListenersInOrder($eventName) |
|
85
|
|
|
{ |
|
86
|
21 |
|
if (!isset($this->listeners[$eventName])) { |
|
87
|
|
|
return []; |
|
88
|
|
|
} |
|
89
|
21 |
|
if (!isset($this->sorted[$eventName])) { |
|
|
|
|
|
|
90
|
21 |
|
$this->sortListeners($eventName); |
|
91
|
21 |
|
} |
|
92
|
|
|
|
|
93
|
21 |
|
return $this->sorted[$eventName]; |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
/** |
|
97
|
|
|
* Sorts the internal list of listeners for the given event by priority. |
|
98
|
|
|
* |
|
99
|
|
|
* @param string $eventName The name of the event. |
|
100
|
|
|
*/ |
|
101
|
21 |
|
private function sortListeners($eventName) |
|
102
|
|
|
{ |
|
103
|
21 |
|
$this->sorted[$eventName] = array(); |
|
104
|
|
|
|
|
105
|
21 |
|
krsort($this->listeners[$eventName]); |
|
106
|
21 |
|
$this->sorted[$eventName] = call_user_func_array('array_merge', $this->listeners[$eventName]); |
|
107
|
|
|
} |
|
108
|
|
|
} |
SmoothPhp /
CQRS-ES-Framework
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: