| Total Complexity | 86 |
| Total Lines | 597 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Config often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Config, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 23 | class Config extends Container |
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| 24 | { |
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| 25 | /** @var Config|null */ |
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| 26 | protected static $instance = null; |
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| 27 | |||
| 28 | /** @var bool */ |
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| 29 | protected static $test_mode = false; |
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| 30 | |||
| 31 | /** @var Resolver */ |
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| 32 | protected $resolver; |
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| 33 | |||
| 34 | /** @var array */ |
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| 35 | protected $resolve_stack = []; |
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| 36 | |||
| 37 | public function __construct(array $config = [], Resolver $resolver = null) |
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| 38 | { |
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| 39 | static::$instance = $this; |
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| 40 | |||
| 41 | $this->resolver = $resolver ?? new Resolver($this); |
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| 42 | $this->boot($config); |
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| 43 | } |
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| 44 | |||
| 45 | /** |
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| 46 | * Returns current instance if available and merges any available configuration. |
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| 47 | * This is the method used throughout the library to retrieve configuration. |
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| 48 | * |
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| 49 | * @param array $items |
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| 50 | * @param Resolver|null $resolver |
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| 51 | * |
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| 52 | * @return Config |
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| 53 | */ |
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| 54 | public static function instance(array $items = [], Resolver $resolver = null) |
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| 55 | { |
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| 56 | if (static::$instance && !empty($items)) { |
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| 57 | return static::newInstance(array_merge(static::$instance->container, $items), $resolver); |
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| 58 | } |
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| 59 | |||
| 60 | if (static::$instance && $resolver) { |
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| 61 | static::$instance->resolver = $resolver; |
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| 62 | } |
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| 63 | |||
| 64 | return static::$instance ?? static::newInstance($items, $resolver); |
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| 65 | } |
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| 66 | |||
| 67 | /** |
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| 68 | * Always returns a new instance. Used primary for testing. If used be aware that any previous changes |
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| 69 | * to the instance will be lost. If it's in test mode it will remain until you explicitly remove it. |
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| 70 | * You should never need to reference this directly except inside of tests. |
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| 71 | * |
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| 72 | * @param array $items |
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| 73 | * @param Resolver|null $resolver |
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| 74 | * |
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| 75 | * @return Config |
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| 76 | */ |
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| 77 | public static function newInstance(array $items = [], Resolver $resolver = null) |
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| 78 | { |
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| 79 | return new static($items, $resolver); |
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| 80 | } |
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| 81 | |||
| 82 | /** |
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| 83 | * This merges in a testing configuration. Any instance from this point will use that configuration. |
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| 84 | * |
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| 85 | * @param array $items |
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| 86 | * @param Resolver|null $resolver |
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| 87 | * |
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| 88 | * @return Config |
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| 89 | */ |
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| 90 | public static function testInstance(array $items = [], Resolver $resolver = null) |
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| 91 | { |
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| 92 | if (static::$test_mode === false && !is_null(static::$instance)) { |
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| 93 | static::$instance = null; |
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| 94 | } |
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| 95 | |||
| 96 | static::$test_mode = true; |
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| 97 | |||
| 98 | return static::instance($items, $resolver); |
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| 99 | } |
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| 100 | |||
| 101 | /** |
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| 102 | * Same as endTest, but also returns a fresh instance. |
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| 103 | * |
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| 104 | * @param array $items |
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| 105 | * @param Resolver|null $resolver |
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| 106 | * |
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| 107 | * @return Config |
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| 108 | */ |
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| 109 | public static function killTestInstance(array $items = [], Resolver $resolver = null) |
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| 110 | { |
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| 111 | (new static())->endTest(); |
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| 112 | |||
| 113 | return static::instance($items, $resolver); |
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| 114 | } |
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| 115 | |||
| 116 | /** |
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| 117 | * This removes the testing flag and allow the normal configuration to return. This must be called to have |
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| 118 | * the library behave normally when testing. |
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| 119 | * |
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| 120 | * @return Config |
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| 121 | */ |
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| 122 | public function endTest() |
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| 123 | { |
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| 124 | static::$test_mode = false; |
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| 125 | static::$instance = null; |
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| 126 | |||
| 127 | return $this; |
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| 128 | } |
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| 129 | |||
| 130 | /** |
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| 131 | * Returns the Resolver if no class is specified otherwise it attempts to resolve the given class. |
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| 132 | * |
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| 133 | * @param string|null $class |
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| 134 | * @param mixed ...$parameters |
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| 135 | * |
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| 136 | * @return Resolver|mixed|null |
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| 137 | */ |
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| 138 | public function __invoke(string $class = null, ...$parameters) |
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| 139 | { |
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| 140 | if (is_null($class)) { |
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| 141 | return $this->resolve(); |
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| 142 | } |
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| 143 | |||
| 144 | if ($this->hasResolvable($class)) { |
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| 145 | return $this->resolveFromStack($class); |
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| 146 | } |
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| 147 | |||
| 148 | if ($this->isProviderClass($class)) { |
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| 149 | return $this->getBoundProvider($class); |
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| 150 | } |
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| 151 | |||
| 152 | if (($bound = $this->bindings($class, false)) !== false) { |
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| 153 | return $bound; |
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| 154 | } |
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| 155 | |||
| 156 | if (array_key_exists($class, $this->apiObjects())) { |
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| 157 | return $this->resolve()->make($this->getApiObject($class), ...$parameters); |
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| 158 | } |
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| 159 | |||
| 160 | if (array_key_exists($class, $this->com())) { |
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| 161 | return $this->resolve()->make($this->com()[$class], ...$parameters); |
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| 162 | } |
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| 163 | |||
| 164 | throw UnresolvableClassException::default($class); |
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| 165 | } |
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| 166 | |||
| 167 | /** |
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| 168 | * @return Resolver |
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| 169 | */ |
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| 170 | public function resolve() |
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| 171 | { |
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| 172 | return $this->resolver; |
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| 173 | } |
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| 174 | |||
| 175 | /** |
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| 176 | * Returns the current resolve stack. |
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| 177 | * |
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| 178 | * @return array |
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| 179 | */ |
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| 180 | public function getResolveStack() |
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| 181 | { |
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| 182 | return $this->resolve_stack; |
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| 183 | } |
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| 184 | |||
| 185 | /** |
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| 186 | * This attempts to get a resolvable item from the stack. Items on the stack are FIFO (First In First Out). |
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| 187 | * This is only ever utilized if using the Config classes' __invoke capability. |
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| 188 | * |
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| 189 | * @param $abstract |
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| 190 | * |
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| 191 | * @return mixed|null |
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| 192 | */ |
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| 193 | public function resolveFromStack($abstract) |
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| 194 | { |
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| 195 | foreach ($this->resolve_stack as $key => $resolvable) { |
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| 196 | if (array_key_exists($abstract, $resolvable)) { |
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| 197 | $result = $resolvable[$abstract]; |
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| 198 | unset($this->resolve_stack[$key]); |
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| 199 | |||
| 200 | return $result; |
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| 201 | } |
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| 202 | } |
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| 203 | |||
| 204 | return null; |
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| 205 | } |
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| 206 | |||
| 207 | /** |
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| 208 | * Add new resolvable to the end of the stack. |
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| 209 | * |
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| 210 | * @param string $abstract |
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| 211 | * @param $concrete |
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| 212 | * |
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| 213 | * @return Config |
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| 214 | */ |
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| 215 | public function addResolvable(string $abstract, $concrete) |
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| 216 | { |
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| 217 | $this->resolve_stack[] = [$abstract => $concrete]; |
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| 218 | |||
| 219 | return $this; |
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| 220 | } |
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| 221 | |||
| 222 | /** |
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| 223 | * Check stack for resolvable. There may be a chance for caching pointers for resolvable abstracts. |
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| 224 | * |
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| 225 | * @param string $abstract |
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| 226 | * |
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| 227 | * @return bool |
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| 228 | */ |
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| 229 | public function hasResolvable(string $abstract): bool |
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| 230 | { |
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| 231 | foreach ($this->resolve_stack as $key => $resolvable) { |
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| 232 | if (array_key_exists($abstract, $resolvable)) { |
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| 233 | return true; |
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| 234 | } |
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| 235 | } |
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| 236 | |||
| 237 | return false; |
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| 238 | } |
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| 239 | |||
| 240 | /** |
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| 241 | * @return array |
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| 242 | */ |
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| 243 | public function apiObjects() |
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| 244 | { |
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| 245 | return $this->get('wmi.api_objects', []); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * @param string $abstract_class |
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| 250 | * @param string|callable|object $concrete_class |
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| 251 | * |
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| 252 | * @return Config |
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| 253 | */ |
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| 254 | public function addApiObject(string $abstract_class, $concrete_class) |
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| 255 | { |
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| 256 | $this->set("wmi.api_objects.{$abstract_class}", $concrete_class); |
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| 257 | |||
| 258 | return $this; |
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| 259 | } |
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| 260 | |||
| 261 | /** |
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| 262 | * @param string $class |
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| 263 | * |
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| 264 | * @return string |
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| 265 | */ |
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| 266 | public function getApiObject(string $class) |
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| 267 | { |
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| 268 | return $this->get("wmi.api_objects.{$class}"); |
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| 269 | } |
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| 270 | |||
| 271 | /** |
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| 272 | * @return array |
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| 273 | */ |
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| 274 | public function com() |
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| 275 | { |
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| 276 | return $this->get('com', []); |
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| 277 | } |
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| 278 | |||
| 279 | /** |
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| 280 | * @param string $abstract_class |
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| 281 | * @param string|callable|object $concrete_class |
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| 282 | * |
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| 283 | * @return Config |
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| 284 | */ |
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| 285 | public function addComObject(string $abstract_class, $concrete_class) |
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| 286 | { |
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| 287 | $this->set("com.{$abstract_class}", $concrete_class); |
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| 288 | |||
| 289 | return $this; |
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| 290 | } |
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| 291 | |||
| 292 | /** |
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| 293 | * @return EventProvider |
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| 294 | */ |
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| 295 | public function eventProvider() |
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| 298 | } |
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| 299 | |||
| 300 | /** |
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| 301 | * @return EventHistoryProvider |
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| 302 | */ |
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| 303 | public function eventHistoryProvider() |
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| 304 | { |
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| 305 | return $this->getBoundProvider('event_history'); |
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| 306 | } |
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| 307 | |||
| 308 | /** |
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| 309 | * @return CommandBus |
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| 310 | */ |
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| 311 | public function commandBus() |
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| 314 | } |
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| 315 | |||
| 316 | /** |
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| 317 | * Returns the given binding if exists and provided, or all bindings if not given. If the value cannot be found |
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| 318 | * it will return $default which can be a Closure that can be used to resolve the binding. |
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| 319 | * |
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| 320 | * @param string|null $abstract |
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| 321 | * @param array $default |
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| 322 | * |
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| 323 | * @return mixed |
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| 324 | */ |
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| 325 | public function bindings(string $abstract = null, $default = []) |
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| 326 | { |
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| 327 | return $this->get('bindings' . if_not_null($abstract, ".{$abstract}"), $default); |
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| 328 | } |
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| 329 | |||
| 330 | /** |
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| 331 | * Stores the given abstract with a reference to the given instance. |
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| 332 | * |
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| 333 | * @param string $abstract |
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| 334 | * @param $concrete |
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| 335 | * |
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| 336 | * @return Config |
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| 337 | */ |
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| 338 | public function bind(string $abstract, $concrete) |
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| 339 | { |
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| 340 | if (is_object($concrete) && class_exists($abstract) === false && is_not_closure($concrete)) { |
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| 341 | $this->set('bindings.' . get_class($concrete), $concrete); |
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| 342 | } |
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| 343 | |||
| 344 | if ($this->isProviderClass($abstract)) { |
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| 345 | $this->set('bindings.' . $this->getProviderAlias($abstract), $concrete); |
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| 346 | } |
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| 347 | |||
| 348 | return $this->set("bindings.{$abstract}", $concrete); |
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| 349 | } |
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| 350 | |||
| 351 | /** |
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| 352 | * Resolves the given concrete with either the given constructor arguments. If the first argument is a Closure |
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| 353 | * it will be used to resolve the given concrete. |
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| 354 | * |
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| 355 | * @param $class |
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| 356 | * @param mixed ...$constructor |
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| 357 | * |
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| 358 | * @return mixed |
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| 359 | */ |
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| 360 | public function make(string $class, ...$constructor) |
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| 371 | } |
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| 372 | |||
| 373 | /** |
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| 374 | * @param string|null $abstract |
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| 375 | * @param array $default |
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| 376 | * |
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| 377 | * @return mixed |
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| 378 | */ |
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| 379 | public function concreteProviders(string $abstract = null, $default = []) |
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| 380 | { |
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| 381 | if (is_null($abstract)) { |
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| 382 | return $this->get('providers.concrete', $default); |
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| 383 | } |
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| 384 | |||
| 385 | if (class_exists($abstract) && array_key_exists($abstract, $this->get('providers.aliases'))) { |
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| 386 | return $abstract; |
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| 387 | } |
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| 388 | |||
| 389 | return $this->get("providers.concrete.{$abstract}", $default); |
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| 390 | } |
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| 391 | |||
| 392 | /** |
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| 393 | * Returns an already registered provider or instantiates it from configuration when $default is null. |
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| 394 | * |
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| 395 | * @param string $alias |
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| 396 | * @param null|mixed $default |
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| 397 | * |
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| 398 | * @return mixed |
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| 399 | */ |
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| 400 | public function getBoundProvider($alias, $default = null) |
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| 401 | { |
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| 402 | $default = $default ?? function () use ($alias) { |
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| 403 | return $this->registerProvider($alias); |
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| 404 | }; |
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| 405 | |||
| 406 | return $this->bindings($alias, $default); |
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| 407 | } |
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| 408 | |||
| 409 | /** |
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| 410 | * @param string $abstract |
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| 411 | * @param array|mixed|Closure ...$constructor |
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| 412 | * |
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| 413 | * @return mixed |
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| 414 | */ |
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| 415 | public function makeProvider(string $abstract, ...$constructor) |
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| 416 | { |
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| 417 | if (($provider = $this->concreteProviders($abstract, false)) === false) { |
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| 418 | throw new InvalidArgumentException("{$abstract} is not a valid provider."); |
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| 419 | } |
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| 420 | |||
| 421 | return $this->make($provider, ...$constructor); |
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| 422 | } |
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| 423 | |||
| 424 | public function getCacheDriver($provider = null) |
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| 425 | { |
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| 426 | $driver = $this->get(if_not_null($provider, "{$provider}.") . 'cache.driver'); |
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| 427 | |||
| 428 | return new $driver($this); |
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| 429 | } |
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| 430 | |||
| 431 | public function shouldTrackEvents() |
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| 432 | { |
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| 433 | return $this->get('event.track', false); |
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| 434 | } |
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| 435 | |||
| 436 | public function trackEvents() |
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| 437 | { |
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| 438 | $this->set('event.track', true); |
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| 439 | |||
| 440 | return $this; |
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| 441 | } |
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| 442 | |||
| 443 | public function doNotTrackEvents() |
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| 444 | { |
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| 445 | $this->set('event.track', false); |
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| 446 | |||
| 447 | return $this; |
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| 448 | } |
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| 449 | |||
| 450 | /** |
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| 451 | * @return string |
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| 452 | */ |
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| 453 | public function getComClass() |
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| 456 | } |
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| 457 | |||
| 458 | /** |
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| 459 | * @return string |
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| 460 | */ |
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| 461 | public function getVariantClass() |
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| 462 | { |
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| 463 | return $this->get('com.variant_class'); |
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| 464 | } |
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| 465 | |||
| 466 | /** |
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| 467 | * @return string |
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| 468 | */ |
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| 469 | public function getComVariantWrapper() |
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| 470 | { |
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| 471 | return $this->get('com.' . ComVariantWrapper::class); |
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| 472 | } |
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| 473 | |||
| 474 | /** |
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| 475 | * @return string |
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| 476 | */ |
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| 477 | public function getComWrapper() |
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| 478 | { |
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| 479 | return $this->get('com.' . ComWrapper::class); |
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| 480 | } |
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| 481 | |||
| 482 | /** |
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| 483 | * @return string |
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| 484 | */ |
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| 485 | public function getVariantWrapper() |
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| 486 | { |
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| 487 | return $this->get('com.' . VariantWrapper::class); |
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| 488 | } |
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| 489 | |||
| 490 | /** |
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| 491 | * @return Connections |
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| 492 | */ |
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| 493 | public function connections() |
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| 494 | { |
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| 495 | return $this->get('wmi.connections.servers'); |
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| 496 | } |
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| 497 | |||
| 498 | /** |
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| 499 | * @param string $name |
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| 500 | * |
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| 501 | * @return ComConnection|null |
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| 502 | */ |
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| 503 | public function getConnection(string $name = null) |
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| 504 | { |
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| 505 | if ($name === 'default' || is_null($name)) { |
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| 506 | $name = $this->get('wmi.connections.default'); |
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| 507 | } |
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| 508 | |||
| 509 | return $this->connections()->get($name); |
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| 510 | } |
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| 511 | |||
| 512 | /** |
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| 513 | * @param string $name |
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| 514 | * @param ComConnection $connection |
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| 515 | * |
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| 516 | * @return Config |
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| 517 | */ |
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| 518 | public function addConnection(string $name, ComConnection $connection): self |
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| 519 | { |
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| 520 | $this->connections()->set($name, $connection); |
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| 521 | |||
| 522 | return $this; |
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| 523 | } |
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| 524 | |||
| 525 | public function getDefaultConnection() |
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| 526 | { |
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| 527 | return $this->getConnection($this->getDefaultConnectionName()); |
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| 528 | } |
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| 529 | |||
| 530 | public function getDefaultConnectionName() |
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| 531 | { |
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| 532 | return $this->get('wmi.connections.default'); |
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| 533 | } |
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| 534 | |||
| 535 | public function setDefaultConnection(string $name) |
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| 536 | { |
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| 537 | if (!$this->getConnection($name)) { |
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| 538 | throw InvalidConnectionException::new($name); |
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| 539 | } |
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| 540 | |||
| 541 | return $this->set('wmi.connections.default', $name); |
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| 542 | } |
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| 543 | |||
| 544 | public function registerProvider($alias, $instance = null) |
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| 545 | { |
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| 546 | if (is_null($instance) && ($bound = $this->getBoundProvider($alias, false)) !== false) { |
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| 547 | return $bound; |
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| 548 | } |
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| 549 | |||
| 550 | if (!is_object($instance)) { |
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| 551 | $instance = $this->makeProvider($alias); |
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| 552 | } |
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| 553 | |||
| 554 | $this->bind("{$alias}", $instance); |
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| 555 | |||
| 556 | return $instance; |
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| 557 | } |
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| 558 | |||
| 559 | /** |
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| 560 | * @param string $abstract |
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| 561 | * |
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| 562 | * @return bool |
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| 563 | */ |
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| 564 | protected function isProvider(string $abstract): bool |
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| 565 | { |
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| 566 | return array_key_exists($abstract, $this->concreteProviders()) |
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| 567 | || $this->concreteProviders($abstract, false) |
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| 568 | || $this->getProviderAlias($abstract) !== false; |
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| 569 | } |
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| 570 | |||
| 571 | /** |
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| 572 | * @param string $abstract |
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| 573 | * |
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| 574 | * @return bool |
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| 575 | */ |
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| 576 | protected function isProviderClass(string $abstract): bool |
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| 579 | } |
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| 580 | |||
| 581 | /** |
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| 582 | * @param string $abstract |
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| 583 | * |
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| 584 | * @return bool|false|int|string |
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| 585 | */ |
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| 586 | protected function getProviderAlias(string $abstract) |
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| 589 | } |
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| 590 | |||
| 591 | protected function boot(array $config) |
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| 592 | { |
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| 593 | if (static::$test_mode) { |
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| 594 | $this->merge(include(__DIR__ . '/../config/testing.php')); |
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| 595 | } |
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| 596 | |||
| 597 | if (!empty($config)) { |
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| 598 | $this->merge($config); |
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| 604 | } |
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| 605 | |||
| 606 | protected function registerProviders() |
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| 607 | { |
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| 608 | array_map(function ($alias) { |
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| 609 | $this->registerProvider($alias); |
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| 610 | }, array_keys($this->concreteProviders())); |
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| 611 | |||
| 612 | return $this; |
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| 613 | } |
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| 614 | |||
| 615 | protected function bootConnections() |
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| 620 | } |
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| 621 | } |
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| 622 |