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<?php |
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namespace Palmtree\Container; |
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use Palmtree\Container\Definition\Definition; |
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use Palmtree\Container\Exception\ParameterNotFoundException; |
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use Palmtree\Container\Exception\ServiceNotFoundException; |
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use Palmtree\Container\Exception\ServiceNotPublicException; |
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use Psr\Container\ContainerInterface; |
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class Container implements ContainerInterface |
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{ |
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/** @var Definition[] */ |
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private $definitions = []; |
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/** @var mixed[] */ |
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private $services = []; |
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/** @var array */ |
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private $parameters = []; |
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/** @var Resolver */ |
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private $resolver; |
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public function __construct(array $definitions = [], array $parameters = []) |
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{ |
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foreach ($definitions as $key => $definitionArgs) { |
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$this->addDefinition($key, Definition::fromYaml($definitionArgs)); |
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} |
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$this->resolver = new Resolver($this, $this->services); |
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$this->parameters = $parameters; |
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$this->parameters = $this->resolver->resolveArgs($this->parameters); |
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} |
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/** |
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* Instantiates non-lazy services. |
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*/ |
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public function instantiateServices() |
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{ |
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foreach ($this->definitions as $key => $definition) { |
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if (!$definition->isLazy()) { |
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$this->services[$key] = $this->create($definition); |
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} |
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} |
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} |
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/** |
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* Returns whether a service with the given key exists within the container. |
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* |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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public function has($key) |
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{ |
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return isset($this->services[$key]); |
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} |
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/** |
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* Returns a service object with the given key. |
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* |
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* @param string $key |
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* |
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* @return mixed |
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* @throws ServiceNotFoundException |
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* @throws ServiceNotPublicException |
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*/ |
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public function get($key) |
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{ |
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if (!$this->has($key)) { |
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if (!$this->hasDefinition($key)) { |
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throw new ServiceNotFoundException($key); |
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} |
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$this->services[$key] = $this->create($this->definitions[$key]); |
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} |
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if (!$this->definitions[$key]->isPublic()) { |
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throw new ServiceNotPublicException($key); |
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} |
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return $this->services[$key]; |
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} |
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/** |
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* Returns whether a definition with the given key exists within the container. |
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* |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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public function hasDefinition(string $key): bool |
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{ |
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return isset($this->definitions[$key]); |
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} |
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public function addDefinition(string $key, Definition $definition) |
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{ |
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$this->definitions[$key] = $definition; |
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} |
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/** |
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* Returns a parameter with the given key or a default value if given. |
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* |
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* @param string $key |
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* @param mixed $default |
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* |
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* @return mixed |
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* @throws ParameterNotFoundException |
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*/ |
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public function getParameter(string $key, $default = null) |
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{ |
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if (!$this->hasParameter($key)) { |
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if (func_num_args() < 2) { |
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throw new ParameterNotFoundException($key); |
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} |
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return $default; |
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} |
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return $this->parameters[$key]; |
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} |
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/** |
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* Sets a parameter within the container. |
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* |
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* @param string $key |
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* @param mixed $value |
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* |
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* @throws ParameterNotFoundException |
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* @throws ServiceNotFoundException |
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*/ |
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public function setParameter(string $key, $value) |
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{ |
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$this->parameters[$key] = $this->resolver->resolveArg($value); |
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} |
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/** |
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* Returns whether a parameter with the given key exists within the container. |
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* |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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public function hasParameter(string $key): bool |
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{ |
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return isset($this->parameters[$key]) || array_key_exists($key, $this->parameters); |
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} |
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/** |
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* Creates a service as defined by the Definition object. |
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* |
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* @param Definition $definition |
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* |
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* @return mixed |
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*/ |
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private function create(Definition $definition) |
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{ |
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$args = $this->resolver->resolveArgs($definition->getArguments()); |
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if ($factory = $definition->getFactory()) { |
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list($class, $method) = $factory; |
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$class = $this->resolver->resolveArg($class); |
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$method = $this->resolver->resolveArg($method); |
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$service = $class::$method(...$args); |
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} else { |
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$class = $this->resolver->resolveArg($definition->getClass()); |
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$service = new $class(...$args); |
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} |
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foreach ($definition->getMethodCalls() as $methodCall) { |
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$methodName = $methodCall->getName(); |
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$methodArgs = $this->resolver->resolveArgs($methodCall->getArguments()); |
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$service->$methodName(...$methodArgs); |
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} |
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return $service; |
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} |
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} |
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palmtreephp /
container
