|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
namespace veejay\container; |
|
6
|
|
|
|
|
7
|
|
|
use Closure; |
|
8
|
|
|
use Psr\Container\ContainerInterface; |
|
9
|
|
|
use ReflectionClass; |
|
10
|
|
|
use ReflectionException; |
|
11
|
|
|
use ReflectionParameter; |
|
12
|
|
|
|
|
13
|
|
|
class Container implements ContainerInterface |
|
14
|
|
|
{ |
|
15
|
|
|
/** |
|
16
|
|
|
* Экземпляры сервисов. |
|
17
|
|
|
* @var array |
|
18
|
|
|
*/ |
|
19
|
|
|
protected array $instances = []; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* Конструкторы сервисов. |
|
23
|
|
|
* @var array |
|
24
|
|
|
*/ |
|
25
|
|
|
protected array $definitions = []; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* @param array $definitions |
|
29
|
|
|
*/ |
|
30
|
|
|
public function __construct(array $definitions = []) |
|
31
|
|
|
{ |
|
32
|
|
|
$this->setMultiple($definitions); |
|
33
|
|
|
} |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* Получение сервиса. |
|
37
|
|
|
* @param string $id |
|
38
|
|
|
* @return object |
|
39
|
|
|
* @throws NotFoundException|ContainerException |
|
40
|
|
|
*/ |
|
41
|
|
|
public function get(string $id): object |
|
42
|
|
|
{ |
|
43
|
|
|
if (array_key_exists($id, $this->instances)) { |
|
44
|
|
|
return $this->instances[$id]; |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
return $this->instances[$id] = $this->getNew($id); |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Создание нового объекта, по названию сервиса. |
|
52
|
|
|
* @param string $id |
|
53
|
|
|
* @return object |
|
54
|
|
|
* @throws NotFoundException|ContainerException |
|
55
|
|
|
*/ |
|
56
|
|
|
public function getNew(string $id): object |
|
57
|
|
|
{ |
|
58
|
|
|
if (!$this->has($id)) { |
|
59
|
|
|
if ($this->isInstantiable($id)) { |
|
60
|
|
|
return $this->createInstance($id); |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
throw new NotFoundException(sprintf('Definition not found: %s', $id)); |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
|
|
$definition = $this->definitions[$id]; |
|
67
|
|
|
$type = gettype($definition); |
|
68
|
|
|
|
|
69
|
|
|
if ($definition instanceof Closure) { |
|
70
|
|
|
$object = $definition($this); |
|
71
|
|
|
|
|
72
|
|
|
if (is_object($object)) { |
|
73
|
|
|
return $object; |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
throw new ContainerException(sprintf('Closure must returns an object: %s', $id)); |
|
77
|
|
|
} elseif ($type == 'object') { |
|
78
|
|
|
return $definition; |
|
79
|
|
|
} elseif ($this->isInstantiable($definition)) { // $type == 'string' |
|
80
|
|
|
return $this->createInstance($definition); |
|
81
|
|
|
} else { // $type == 'string' |
|
82
|
|
|
throw new ContainerException(sprintf('Class cannot be instantiated: %s', $definition)); |
|
83
|
|
|
} |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
|
|
/** |
|
87
|
|
|
* Регистрация сервиса. |
|
88
|
|
|
* @param string $id |
|
89
|
|
|
* @param object|callable|string $definition |
|
90
|
|
|
* @return void |
|
91
|
|
|
*/ |
|
92
|
|
|
public function set(string $id, object|callable|string $definition): void |
|
93
|
|
|
{ |
|
94
|
|
|
if (array_key_exists($id, $this->instances)) { |
|
95
|
|
|
unset($this->instances[$id]); |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
|
|
$this->definitions[$id] = $definition; |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
|
|
/** |
|
102
|
|
|
* Регистрация сервисов. |
|
103
|
|
|
* @param array $definitions |
|
104
|
|
|
* @return void |
|
105
|
|
|
*/ |
|
106
|
|
|
public function setMultiple(array $definitions): void |
|
107
|
|
|
{ |
|
108
|
|
|
foreach ($definitions as $id => $definition) { |
|
109
|
|
|
$this->set($id, $definition); |
|
110
|
|
|
} |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
/** |
|
114
|
|
|
* {@inheritdoc} |
|
115
|
|
|
*/ |
|
116
|
|
|
public function has(string $id): bool |
|
117
|
|
|
{ |
|
118
|
|
|
return array_key_exists($id, $this->definitions); |
|
119
|
|
|
} |
|
120
|
|
|
|
|
121
|
|
|
/** |
|
122
|
|
|
* Создать объект по названию класса. |
|
123
|
|
|
* @param string $class |
|
124
|
|
|
* @return object |
|
125
|
|
|
* @throws ContainerException |
|
126
|
|
|
*/ |
|
127
|
|
|
protected function createInstance(string $class): object |
|
128
|
|
|
{ |
|
129
|
|
|
try { |
|
130
|
|
|
$reflection = new ReflectionClass($class); |
|
131
|
|
|
} catch (ReflectionException $e) { |
|
132
|
|
|
throw new ContainerException(sprintf('Class does not exists: %s', $class)); |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
|
|
$constructor = $reflection->getConstructor(); |
|
136
|
|
|
|
|
137
|
|
|
if (!$constructor) { |
|
138
|
|
|
return $reflection->newInstance(); |
|
139
|
|
|
} |
|
140
|
|
|
|
|
141
|
|
|
$args = []; |
|
142
|
|
|
|
|
143
|
|
|
foreach ($constructor->getParameters() as $param) { |
|
144
|
|
|
$args[] = $this->getParamValue($param); |
|
145
|
|
|
} |
|
146
|
|
|
|
|
147
|
|
|
return $reflection->newInstanceArgs($args); |
|
148
|
|
|
} |
|
149
|
|
|
|
|
150
|
|
|
/** |
|
151
|
|
|
* Вернуть значение указанного параметра конструктора. |
|
152
|
|
|
* @param ReflectionParameter $param |
|
153
|
|
|
* @return mixed |
|
154
|
|
|
*/ |
|
155
|
|
|
private function getParamValue(ReflectionParameter $param): mixed |
|
156
|
|
|
{ |
|
157
|
|
|
$type = $param->getType(); |
|
158
|
|
|
|
|
159
|
|
|
if (!is_null($type)) { |
|
160
|
|
|
$type = (string)$type; |
|
161
|
|
|
} |
|
162
|
|
|
|
|
163
|
|
|
if (!is_null($type) && (class_exists($type) || interface_exists($type))) { |
|
164
|
|
|
return $this->get($type); |
|
165
|
|
|
} |
|
166
|
|
|
|
|
167
|
|
|
if ($param->isDefaultValueAvailable()) { |
|
168
|
|
|
return $param->getDefaultValue(); |
|
169
|
|
|
} |
|
170
|
|
|
|
|
171
|
|
|
return null; |
|
172
|
|
|
} |
|
173
|
|
|
|
|
174
|
|
|
/** |
|
175
|
|
|
* Является ли класс инстанцируемым. |
|
176
|
|
|
* @param string $class |
|
177
|
|
|
* @return bool |
|
178
|
|
|
*/ |
|
179
|
|
|
private function isInstantiable(string $class): bool |
|
180
|
|
|
{ |
|
181
|
|
|
if (!class_exists($class)) { |
|
182
|
|
|
return false; |
|
183
|
|
|
} |
|
184
|
|
|
|
|
185
|
|
|
$reflectionClass = new ReflectionClass($class); |
|
186
|
|
|
return $reflectionClass->isInstantiable(); |
|
187
|
|
|
} |
|
188
|
|
|
} |
|
189
|
|
|
|
Veejayspb /
container
