|
1
|
|
|
<?php |
|
2
|
|
|
namespace PhpDDD\Command\Bus; |
|
3
|
|
|
|
|
4
|
|
|
use PhpDDD\Command\CommandInterface; |
|
5
|
|
|
use PhpDDD\Command\Handler\CommandHandlerInterface; |
|
6
|
|
|
use PhpDDD\Domain\AbstractAggregateRoot; |
|
7
|
|
|
use PhpDDD\Domain\Event\Bus\EventBusInterface; |
|
8
|
|
|
use PhpDDD\Domain\Event\EventInterface; |
|
9
|
|
|
use PhpDDD\Domain\Event\Listener\EventListenerCollection; |
|
10
|
|
|
|
|
11
|
|
|
/** |
|
12
|
|
|
* Class that act as a CommandBus and dispatch events |
|
13
|
|
|
* |
|
14
|
|
|
* @see php-ddd/event project |
|
15
|
|
|
*/ |
|
16
|
|
|
class CommandBusEventDispatcher implements CommandBusInterface, EventBusInterface |
|
17
|
|
|
{ |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* @var CommandBusInterface |
|
21
|
|
|
*/ |
|
22
|
|
|
private $commandBus; |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* @var EventBusInterface |
|
26
|
|
|
*/ |
|
27
|
|
|
private $eventBus; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @param CommandBusInterface $commandBus |
|
31
|
|
|
* @param EventBusInterface $eventBus |
|
32
|
|
|
*/ |
|
33
|
|
|
public function __construct(CommandBusInterface $commandBus, EventBusInterface $eventBus) |
|
34
|
|
|
{ |
|
35
|
|
|
$this->commandBus = $commandBus; |
|
36
|
|
|
$this->eventBus = $eventBus; |
|
37
|
|
|
} |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* @param CommandInterface $command |
|
41
|
|
|
* |
|
42
|
|
|
* @return AbstractAggregateRoot[] |
|
43
|
|
|
*/ |
|
44
|
|
|
public function dispatch(CommandInterface $command) |
|
45
|
|
|
{ |
|
46
|
|
|
$aggregateRoots = $this->commandBus->dispatch($command); |
|
47
|
|
|
|
|
48
|
|
|
$this->dispatchEvents($aggregateRoots); |
|
49
|
|
|
|
|
50
|
|
|
return $aggregateRoots; |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
/** |
|
54
|
|
|
* @return CommandHandlerInterface[] |
|
55
|
|
|
*/ |
|
56
|
|
|
public function getRegisteredCommandHandlers() |
|
57
|
|
|
{ |
|
58
|
|
|
return $this->commandBus->getRegisteredCommandHandlers(); |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* Publishes the event $event to every EventListener that wants to. |
|
63
|
|
|
* |
|
64
|
|
|
* @param EventInterface $event |
|
65
|
|
|
* |
|
66
|
|
|
* @return string[]|null data returned by each EventListener |
|
67
|
|
|
*/ |
|
68
|
|
|
public function publish(EventInterface $event) |
|
69
|
|
|
{ |
|
70
|
|
|
$commandsToDispatch = $this->eventBus->publish($event); |
|
71
|
|
|
|
|
72
|
|
|
$commands = $this->extractCommands($commandsToDispatch); |
|
73
|
|
|
foreach ($commands as $command) { |
|
74
|
|
|
$this->dispatch($command); |
|
75
|
|
|
} |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* Get the list of every EventListener defined in the EventBus. |
|
80
|
|
|
* This might be useful for debug |
|
81
|
|
|
* |
|
82
|
|
|
* @return EventListenerCollection[] |
|
83
|
|
|
*/ |
|
84
|
|
|
public function getRegisteredEventListeners() |
|
85
|
|
|
{ |
|
86
|
|
|
return $this->eventBus->getRegisteredEventListeners(); |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
/** |
|
90
|
|
|
* @param array $elements |
|
91
|
|
|
*/ |
|
92
|
|
|
private function dispatchEvents(array $elements) |
|
93
|
|
|
{ |
|
94
|
|
|
foreach ($elements as $element) { |
|
95
|
|
|
if (is_array($element)) { |
|
96
|
|
|
$this->dispatchEvents($element); |
|
97
|
|
|
|
|
98
|
|
|
return; |
|
99
|
|
|
} |
|
100
|
|
|
if ($element instanceof AbstractAggregateRoot) { |
|
101
|
|
|
$this->dispatchEventsForAggregateRoot($element); |
|
102
|
|
|
} |
|
103
|
|
|
} |
|
104
|
|
|
} |
|
105
|
|
|
|
|
106
|
|
|
/** |
|
107
|
|
|
* @param AbstractAggregateRoot $aggregateRoot |
|
108
|
|
|
*/ |
|
109
|
|
|
private function dispatchEventsForAggregateRoot(AbstractAggregateRoot $aggregateRoot) |
|
110
|
|
|
{ |
|
111
|
|
|
$events = $aggregateRoot->pullEvents(); |
|
112
|
|
|
|
|
113
|
|
|
foreach ($events as $event) { |
|
114
|
|
|
$this->publish($event); |
|
115
|
|
|
} |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
/** |
|
119
|
|
|
* @param array $commandsToDispatch |
|
120
|
|
|
* |
|
121
|
|
|
* @return CommandInterface[] |
|
122
|
|
|
*/ |
|
123
|
|
|
private function extractCommands(array $commandsToDispatch) |
|
124
|
|
|
{ |
|
125
|
|
|
$commands = array(); |
|
126
|
|
|
foreach ($commandsToDispatch as $command) { |
|
127
|
|
|
if (is_array($command)) { |
|
128
|
|
|
$commands = array_merge($commands, $this->extractCommands($command)); |
|
129
|
|
|
} elseif ($command instanceof CommandInterface) { |
|
130
|
|
|
$commands[] = $command; |
|
131
|
|
|
} |
|
132
|
|
|
} |
|
133
|
|
|
|
|
134
|
|
|
return $commands; |
|
135
|
|
|
} |
|
136
|
|
|
} |
|
137
|
|
|
|
php-ddd /
command
