ICanBoogie\HTTP\DispatcherProvider

Complexity

Total Complexity

5

Size/Duplication

Total Lines	60
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes	1
Bugs	0	Features	1

4 Methods

Rating	Name	Duplication	Size	Complexity
A	defined()	0	4	1
A	define()	0	8	1
A	provide()	0	11	2
A	clear()	0	4	1

<?php

/*
 * This file is part of the ICanBoogie package.
 *
 * (c) Olivier Laviale <olivier.laviale@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace ICanBoogie\HTTP;

/**
 * Provides a {@link Dispatcher} instance.
 */
class DispatcherProvider
{
	/**
	 * @var callable {@link Dispatcher} provider
	 */
	static private $provider;

	/**
	 * Whether a provider if defined.
	 *
	 * @return bool
	 */
	static public function defined()
	{
		return isset(self::$provider);
	}

	/**
	 * Defines the {@link Dispatcher} provider.
	 *
	 * @param callable $provider
	 *
	 * @return callable|null The previous provider, or `null` if none was defined before.
	 */
	static public function define(callable $provider)
	{
		$previous = self::$provider;

		self::$provider = $provider;

		return $previous;
	}

	/**
	 * Returns a {@link Dispatcher} instance using the provider.
	 *
	 * @return Dispatcher
	 *
	 * @throws DispatcherProviderNotDefined if no provider is defined.
	 */
	static public function provide()
	{
		$provider = self::$provider;

		if (!$provider)
		{
			throw new DispatcherProviderNotDefined;
		}

		return $provider();
	}

	/**
	 * Clears the provider.
	 */
	static public function clear()
	{
		self::$provider = null;
	}
}