BlackholeBroker.php
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BlackholeBroker.php
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	<?php

	namespace Keruald\Broker;

	class BlackholeBroker extends Broker implements BuildableFromConfigInterface {
	///
	/// Broker implementation
	///

	/**
	* Sends a message to the broker, which will silently discards it.
	*
	* @param string $message The message to send
	*/
	public final function sendMessage ($message) {
	return $this;
	}

	/**
	* Determines if the configuration wants an omnipotent blackhole
	*
	* @param array $params An array with omnipotence information
	* @return bool
	*/
	static private function configWantsOmnipotence ($params) {
	return array_key_exists('omnipotence', $params)
	&&
	$params['omnipotence'];
	}

	/**
	* Initializes a new instance of the broker from specified parameters
	*
	* @param array $params An array with omnipotence information
	* @return Keruald\Broker\BlackholeBroker A connected instance of the broker
	*/
	static public function makeFromConfig ($params) {
	$instance = new self;

	if (self::configWantsOmnipotence($params)) {
	$instance->acceptAllMethodCalls();
	}

	return $instance;
	}

	///
	/// Omnipotence to ease lightweight mock testing without any lib
	///

	/**
	* @var bool
	*/
	private $acceptAllMethodCalls = false;

	/**
	* Configures the broker to accept every method call
	*/
	public function acceptAllMethodCalls () {
	$this->acceptAllMethodCalls = true;
	return $this;
	}

	/**
	* Handles a method overloading call
	*
	* @param string $name The name of the method being called
	* @param array $arguments An enumerated array containing the parameters
	* passed to the method
	*/
	public function __call ($name, array $arguments) {
	if ($this->acceptAllMethodCalls) {
	return $this; // Brokers are intended to be fluent
	}

	throw new \BadFunctionCallException(
	"Blackhole broker doesn't implement the $name method."
	);
	}
	}

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