134 lines
2.5 KiB
PHP
134 lines
2.5 KiB
PHP
<?php
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/**
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* Ion
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*
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* Building blocks for web development
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*
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* @package Ion
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2015 - 2016
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* @license MIT
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*/
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namespace Aviat\Ion\Di;
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use Psr\Log\LoggerInterface;
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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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* Map of logger instances
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*
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* @var array
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*/
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protected $loggers = [];
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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 = $values;
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$this->loggers = [];
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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 $value
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* @return ContainerInterface
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*/
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public function set($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 array_key_exists($id, $this->container);
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}
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/**
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* Determine whether a logger channel is registered
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* @param string $key The logger channel
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* @return boolean
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*/
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public function hasLogger($key = 'default')
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{
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return array_key_exists($key, $this->loggers);
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}
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/**
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* Add a logger to the Container
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*
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* @param LoggerInterface $logger
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* @param string $key The logger 'channel'
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* @return ContainerInterface
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*/
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public function setLogger(LoggerInterface $logger, $key = 'default')
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{
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$this->loggers[$key] = $logger;
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return $this;
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}
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/**
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* Retrieve a logger for the selected channel
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*
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* @param string $key The logger to retreive
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* @return LoggerInterface|null
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*/
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public function getLogger($key = 'default')
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{
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return ($this->hasLogger($key))
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? $this->loggers[$key]
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: NULL;
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}
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}
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// End of Container.php
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