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<?php |
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namespace Softius\ResourcesResolver; |
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use Interop\Container\ContainerInterface; |
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/** |
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* Class DefaultCallableStrategy |
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* @package Softius\ResourcesResolver |
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*/ |
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class DefaultCallableStrategy implements ResolvableInterface |
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{ |
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const DEFAULT_METHOD_SEPARATOR = '::'; |
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/** |
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* @var ContainerInterface |
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*/ |
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private $container; |
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/** |
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* @var null|string |
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*/ |
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private $method_separator; |
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/** |
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* DefaultCallableStrategy constructor. |
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* @param \Interop\Container\ContainerInterface $container |
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* @param string $method_separator |
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*/ |
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public function __construct(ContainerInterface $container = null, $method_separator = null) { |
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$this->container = $container; |
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$this->method_separator = ($method_separator === null) ? self::DEFAULT_METHOD_SEPARATOR : $method_separator; |
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} |
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/** |
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* @param string $in |
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* @return array |
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* @throws \Exception |
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*/ |
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public function resolve($in) |
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{ |
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$pos = strrpos($in, $this->method_separator); |
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if ($pos === false) { |
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throw new \Exception(sprintf('Method separator not found in %s', $in)); |
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} |
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if ($pos === 0) { |
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// Use backtrace to find the calling Class |
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$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 3); |
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$class = $trace[2]['class']; |
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$method = substr($in, $pos + strlen($this->method_separator)); |
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} else { |
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$class = substr($in, 0, $pos); |
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$method = substr($in, $pos + strlen($this->method_separator)); |
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} |
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if ($this->container !== null && $this->container->has($class)) { |
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$class = $this->container->get($class); |
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} |
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return [$class, $method]; |
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} |
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/** |
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* @param $in |
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* @return array |
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* @throws \Exception |
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*/ |
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public function resolveSafe($in) |
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{ |
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$callable = $this->resolve($in); |
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if (is_callable($callable)) { |
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return $callable; |
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} |
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throw new \Exception(sprintf('Could not resolve %s to a callable', $in)); |
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} |
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} |