1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* This file is part of slick/di package |
5
|
|
|
* |
6
|
|
|
* For the full copyright and license information, please view the LICENSE |
7
|
|
|
* file that was distributed with this source code. |
8
|
|
|
*/ |
9
|
|
|
|
10
|
|
|
namespace Slick\Di; |
11
|
|
|
|
12
|
|
|
use Interop\Container\Exception\ContainerException; |
13
|
|
|
use Slick\Di\Definition\Alias; |
14
|
|
|
use Slick\Di\Definition\Factory; |
15
|
|
|
use Slick\Di\Definition\ObjectDefinition; |
16
|
|
|
use Slick\Di\Definition\Scope; |
17
|
|
|
use Slick\Di\Definition\Value; |
18
|
|
|
use Slick\Di\Exception\NotFoundException; |
19
|
|
|
|
20
|
|
|
/** |
21
|
|
|
* Container |
22
|
|
|
* |
23
|
|
|
* @package Slick\Di |
24
|
|
|
* @author Filipe Silva <[email protected]> |
25
|
|
|
*/ |
26
|
|
|
class Container implements ContainerInterface, ObjectHydratorAwareInterface |
27
|
|
|
{ |
28
|
|
|
/** |
29
|
|
|
* @var array |
30
|
|
|
*/ |
31
|
|
|
protected $definitions = []; |
32
|
|
|
|
33
|
|
|
/** |
34
|
|
|
* @var array |
35
|
|
|
*/ |
36
|
|
|
protected static $instances = []; |
37
|
|
|
|
38
|
|
|
/** |
39
|
|
|
* @var ObjectHydratorInterface |
40
|
|
|
*/ |
41
|
|
|
protected $hydrator; |
42
|
|
|
|
43
|
|
|
/** |
44
|
|
|
* @var null|ContainerInterface |
45
|
|
|
*/ |
46
|
|
|
protected $parent; |
47
|
|
|
|
48
|
|
|
/** |
49
|
|
|
* Creates a dependency container |
50
|
|
|
*/ |
51
|
|
|
public function __construct() |
52
|
|
|
{ |
53
|
|
|
$this->parent = array_key_exists('container', self::$instances) |
54
|
74 |
|
? self::$instances['container'] |
55
|
|
|
: null; |
56
|
74 |
|
|
57
|
74 |
|
self::$instances['container'] = $this; |
58
|
74 |
|
} |
59
|
72 |
|
|
60
|
72 |
|
/** |
61
|
|
|
* Finds an entry of the container by its identifier and returns it. |
62
|
74 |
|
* |
63
|
74 |
|
* @param string $id Identifier of the entry to look for. |
64
|
74 |
|
* |
65
|
74 |
|
* @throws NotFoundException No entry was found for this identifier. |
66
|
74 |
|
* @throws ContainerException Error while retrieving the entry. |
67
|
|
|
* |
68
|
|
|
* @return mixed Entry. |
69
|
|
|
*/ |
70
|
|
|
public function get($id) |
71
|
|
|
{ |
72
|
|
|
if (!$this->has($id)) { |
73
|
|
|
throw new NotFoundException( |
74
|
|
|
"Dependency container has not found any definition for '{$id}'" |
75
|
|
|
); |
76
|
|
|
} |
77
|
|
|
return $this->resolve($id); |
78
|
52 |
|
} |
79
|
|
|
|
80
|
52 |
|
/** |
81
|
2 |
|
* Returns true if the container can return an entry for the given |
82
|
2 |
|
* identifier. Returns false otherwise. |
83
|
|
|
* |
84
|
2 |
|
* @param string $id Identifier of the entry to look for. |
85
|
|
|
* |
86
|
|
|
* @return boolean |
87
|
50 |
|
*/ |
88
|
50 |
|
public function has($id) |
89
|
50 |
|
{ |
90
|
|
|
return array_key_exists($id, $this->definitions); |
91
|
50 |
|
} |
92
|
46 |
|
|
93
|
46 |
|
/** |
94
|
|
|
* Adds a definition or a value to the container |
95
|
50 |
|
* |
96
|
|
|
* @param string $name |
97
|
|
|
* @param mixed $definition |
98
|
|
|
* @param Scope|string $scope Resolving scope |
99
|
|
|
* @param array $parameters Used if $value is a callable |
100
|
|
|
* |
101
|
|
|
* @return Container |
102
|
|
|
*/ |
103
|
|
|
public function register( |
104
|
|
|
$name, |
105
|
|
|
$definition = null, |
106
|
56 |
|
$scope = Scope::SINGLETON, |
107
|
|
|
array $parameters = [] |
108
|
56 |
|
) { |
109
|
28 |
|
if (!$definition instanceof DefinitionInterface) { |
110
|
|
|
$definition = $this->createDefinition( |
111
|
|
|
$definition, |
112
|
56 |
|
$parameters |
113
|
18 |
|
); |
114
|
|
|
$definition->setScope($scope); |
115
|
52 |
|
} |
116
|
|
|
return $this->add($name, $definition); |
117
|
|
|
} |
118
|
|
|
|
119
|
|
|
/** |
120
|
|
|
* Resolves the definition that was saved under the provided name |
121
|
|
|
* |
122
|
|
|
* @param string $name |
123
|
|
|
* |
124
|
|
|
* @return mixed |
125
|
|
|
*/ |
126
|
|
|
protected function resolve($name) |
127
|
|
|
{ |
128
|
|
|
if (! array_key_exists($name, self::$instances)) { |
129
|
|
|
$entry = $this->definitions[$name]; |
130
|
|
|
return $this->registerEntry($name, $entry); |
131
|
|
|
} |
132
|
|
|
return self::$instances[$name]; |
133
|
74 |
|
} |
134
|
|
|
|
135
|
|
|
/** |
136
|
|
|
* Checks the definition scope to register resolution result |
137
|
74 |
|
* |
138
|
72 |
|
* If scope is set to prototype the the resolution result is not |
139
|
32 |
|
* stores in the container instances. |
140
|
32 |
|
* |
141
|
32 |
|
* @param string $name |
142
|
32 |
|
* @param DefinitionInterface $definition |
143
|
32 |
|
* @return mixed |
144
|
32 |
|
*/ |
145
|
32 |
|
protected function registerEntry($name, DefinitionInterface $definition) |
146
|
|
|
{ |
147
|
72 |
|
$value = $definition->resolve(); |
148
|
72 |
|
if ((string) $definition->getScope() !== Scope::PROTOTYPE) { |
149
|
72 |
|
self::$instances[$name] = $value; |
150
|
72 |
|
} |
151
|
|
|
return $value; |
152
|
72 |
|
} |
153
|
72 |
|
|
154
|
|
|
/** |
155
|
72 |
|
* Adds a definition to the definitions list |
156
|
|
|
* |
157
|
72 |
|
* @param string $name |
158
|
72 |
|
* @param DefinitionInterface $definition |
159
|
|
|
* |
160
|
|
|
* @return Container |
161
|
|
|
*/ |
162
|
|
|
protected function add($name, DefinitionInterface $definition) |
163
|
|
|
{ |
164
|
|
|
$this->definitions[$name] = $definition; |
165
|
|
|
$definition->setContainer($this); |
166
|
|
|
return $this; |
167
|
|
|
} |
168
|
|
|
|
169
|
|
|
/** |
170
|
|
|
* Creates the definition for registered data |
171
|
|
|
* |
172
|
|
|
* If value is a callable then the definition is Factory, otherwise |
173
|
|
|
* it will create a Value definition. |
174
|
|
|
* |
175
|
10 |
|
* @see Factory, Value |
176
|
|
|
* |
177
|
|
|
* @param callable|mixed $value |
178
|
10 |
|
* @param array $parameters |
179
|
2 |
|
* |
180
|
|
|
* @return Factory|Value |
181
|
2 |
|
*/ |
182
|
|
|
protected function createDefinition( |
183
|
|
|
$value, |
184
|
8 |
|
array $parameters = [] |
185
|
4 |
|
) { |
186
|
4 |
|
if (is_callable($value)) { |
187
|
|
|
return new Factory($value, $parameters); |
188
|
8 |
|
} |
189
|
|
|
return $this->createValueDefinition($value); |
190
|
|
|
} |
191
|
|
|
|
192
|
|
|
/** |
193
|
|
|
* Creates a definition for provided name and value pair |
194
|
|
|
* |
195
|
|
|
* If $value is a string prefixed with '@' it will create an Alias |
196
|
|
|
* definition. Otherwise a Value definition will be created. |
197
|
|
|
* |
198
|
46 |
|
* @param mixed $value |
199
|
|
|
* |
200
|
46 |
|
* @return Value|Alias |
201
|
46 |
|
*/ |
202
|
46 |
|
protected function createValueDefinition($value) |
203
|
46 |
|
{ |
204
|
46 |
|
if (is_string($value) && strpos($value, '@') !== false) { |
205
|
46 |
|
return new Alias($value); |
206
|
46 |
|
} |
207
|
|
|
|
208
|
|
|
return new Value($value); |
209
|
|
|
} |
210
|
|
|
|
211
|
|
|
/** |
212
|
|
|
* Creates an instance of provided class injecting its dependencies |
213
|
|
|
* |
214
|
|
|
* @param string $className |
215
|
|
|
* @param array ...$arguments |
216
|
70 |
|
* |
217
|
|
|
* @return mixed |
218
|
70 |
|
*/ |
219
|
70 |
|
public function make($className, ...$arguments) |
220
|
|
|
{ |
221
|
|
|
if (is_a($className, ContainerInjectionInterface::class, true)) { |
222
|
|
|
return call_user_func_array([$className, 'create'], [$this]); |
223
|
|
|
} |
224
|
|
|
|
225
|
|
|
$definition = (new ObjectDefinition($className)) |
226
|
|
|
->setContainer($this) |
227
|
|
|
; |
228
|
|
|
call_user_func_array([$definition, 'with'], $arguments); |
229
|
|
|
$object = $definition->resolve(); |
|
|
|
|
230
|
72 |
|
$this->getHydrator()->hydrate($object); |
231
|
|
|
return $object; |
232
|
72 |
|
} |
233
|
|
|
|
234
|
72 |
|
/** |
235
|
|
|
* Set the object hydrator |
236
|
72 |
|
* |
237
|
72 |
|
* @param ObjectHydratorInterface $hydrator |
238
|
|
|
* |
239
|
|
|
* @return Container|ObjectHydratorAwareInterface |
240
|
|
|
*/ |
241
|
|
|
public function setHydrator(ObjectHydratorInterface $hydrator) |
242
|
|
|
{ |
243
|
|
|
$this->hydrator = $hydrator; |
244
|
|
|
return $this; |
245
|
|
|
} |
246
|
|
|
|
247
|
|
|
/** |
248
|
|
|
* Get the object hydrator |
249
|
|
|
* |
250
|
32 |
|
* @return ObjectHydratorInterface |
251
|
|
|
*/ |
252
|
|
|
public function getHydrator() |
253
|
32 |
|
{ |
254
|
|
|
if (!$this->hydrator) { |
255
|
32 |
|
$this->setHydrator(new ObjectHydrator($this)); |
256
|
32 |
|
} |
257
|
|
|
return $this->hydrator; |
258
|
|
|
} |
259
|
|
|
|
260
|
|
|
/** |
261
|
|
|
* Gets the parent container if it exists |
262
|
|
|
* |
263
|
|
|
* @return null|ContainerInterface |
264
|
|
|
*/ |
265
|
50 |
|
public function parent() |
266
|
|
|
{ |
267
|
50 |
|
return $this->parent; |
268
|
8 |
|
} |
269
|
|
|
} |
270
|
|
|
|
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.