82 lines
1.6 KiB
PHP
82 lines
1.6 KiB
PHP
<?php
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namespace Aviat\Ion\Di;
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use ArrayObject;
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use Aviat\Ion\Di\Exception\ContainerException;
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use Aviat\Ion\Di\Exception\NotFoundException;
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/**
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* Dependency container
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*/
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class Container implements ContainerInterface {
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/**
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* Array with class instances
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*
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* @var array
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*/
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protected $container = [];
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/**
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* Constructor
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*
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* @param array $values (optional)
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*/
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public function __construct(array $values = [])
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{
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$this->container = new ArrayObject($values);
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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 $id Identifier of the entry to look for.
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*
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* @throws NotFoundException No entry was found for this identifier.
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* @throws ContainerException Error while retrieving the entry.
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*
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* @return mixed Entry.
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*/
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public function get($id)
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{
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if ( ! is_string($id))
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{
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throw new Exception\ContainerException("Id must be a string");
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}
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if ($this->has($id))
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{
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return $this->container[$id];
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}
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throw new Exception\NotFoundException("Item {$id} does not exist in container.");
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}
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/**
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* Add a value to the container
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*
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* @param string $id
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* @param mixed $value
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* @return Container
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*/
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public function set($id, $value)
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{
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$this->container[$id] = $value;
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return $this;
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}
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/**
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* Returns true if the container can return an entry for the given identifier.
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* Returns false otherwise.
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*
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* @param string $id Identifier of the entry to look for.
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*
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* @return boolean
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*/
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public function has($id)
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{
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return $this->container->offsetExists($id);
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}
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}
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// End of Container.php
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