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<?php
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/*
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* @copyright (c) 2018 Mendel <[email protected]>
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* @license see license.txt
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*/
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namespace drycart\di;
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/**
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* Prepare parameters for call, using reflection
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* @see: AbstractCoreContainer
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* @author Mendel <[email protected]>
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*/
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abstract class AbstractParametersContainer
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{
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/**
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* Contain array of callable for try transform parameters
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* @var array
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*/
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protected $transformers = [];
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/**
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* Prepare parameters using parameters array
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* @param array $dependency
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* @param array $parameters
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* @return array
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*/
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protected function prepareParameters(array $dependency, array $parameters) : array
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{
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$preparedParameters = [];
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foreach ($dependency as $paramReflector) {
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$name = $paramReflector->name;
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$type = $paramReflector->getType();
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if (isset($parameters[$name])) {
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$value = $parameters[$name];
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$preparedParameters[] = $this->prepareValue($type, $value);
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} else {
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$preparedParameters[] = $this->getParameter($paramReflector);
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}
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}
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return $preparedParameters;
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}
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private function prepareValue($type, $value)
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{
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if (empty($type) or $type->isBuiltIn() or is_a($value, $type->getName())) {
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return $value;
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} elseif (is_array($value)) {
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$className = $value['#class'] ?? $type->getName();
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return $this->make($className, $value);
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} else {
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return $this->tryTransformValue($type->getName(), $value);
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}
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}
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/**
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* Try get parameter - from container or default
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* @param \ReflectionParameter $param
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* @return mixed
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*/
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private function getParameter(\ReflectionParameter $param)
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{
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$type = $param->getType();
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if (!empty($type) and !$type->isBuiltIn()) {
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return $this->get($type->getName());
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} elseif ($param->isDefaultValueAvailable()) {
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return $param->getDefaultValue();
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}elseif ($type->allowsNull()) {
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return null;
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} else {
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throw new ContainerException('Unknown parameter '.$param->name);
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}
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}
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private function tryTransformValue(string $className, $value)
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{
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foreach ($this->transformers as $transformer) {
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$value = $transformer($value, $className, $this);
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if (is_a($value, $className)) {
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return $value;
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}
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}
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throw new ContainerException('Wrong type of value for parameter. Need: '.$className);
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}
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/**
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* Finds an entry of the container by its identifier and returns it.
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*
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* @param string $id class name
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*
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* @throws NotFoundException No entry was found for **this** identifier.
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* @throws ContainerException Error while retrieving the entry.
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*
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* @return mixed
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*/
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abstract public function get($id);
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/**
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* Create new object
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99
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* @param string $id class name
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* @param array $parameters parameters from request
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* @return mixed
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* @throws ContainerException
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103
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*/
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104
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abstract public function make(string $id, array $parameters = []);
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105
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} |
drycart /
di
mendel
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