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<?php |
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/* |
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* This file is part of the Borobudur-Bus package. |
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* |
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* (c) Hexacodelabs <http://hexacodelabs.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Borobudur\Bus; |
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use Borobudur\Bus\Exception\InvalidArgumentException; |
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use Borobudur\Bus\Message\SystemMessage; |
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/** |
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* @author Iqbal Maulana <[email protected]> |
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* @created 8/17/15 |
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*/ |
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class Gate implements GateInterface |
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{ |
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/** |
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* @var BusInterface[] |
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*/ |
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private $buses = array(); |
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/** |
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* {@inheritdoc} |
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*/ |
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public function enableSystemBus() |
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{ |
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if (!isset($this->buses[BusInterface::SYSTEM_BUS])) { |
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$this->attach(new SystemBus()); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function disableSystemBus() |
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{ |
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$this->detach(BusInterface::SYSTEM_BUS); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function attach(BusInterface $bus) |
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{ |
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$name = $bus->getName(); |
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if (BusInterface::SYSTEM_BUS === $name) { |
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$this->assertValidSystemBus($bus); |
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$this->buses[$name] = $bus; |
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return; |
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} |
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$this->assertNotRegisteredBus($name); |
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$bus = new BusProxy($bus); |
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$bus->setGate($this); |
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$this->buses[$name] = $bus; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function detach($busName) |
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{ |
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unset($this->buses[$busName]); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get($busName) |
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{ |
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if (!isset($this->buses[$busName])) { |
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throw new InvalidArgumentException(sprintf('Bus "%s" is not registered.', $busName)); |
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} |
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return $this->buses[$busName]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has($busName) |
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{ |
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return array_key_exists($busName, $this->buses); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getSystemMessage() |
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{ |
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return new SystemMessage(); |
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} |
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/** |
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* Assert that bus with specified name is not registered. |
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* |
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* @param string $name |
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* |
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* @throws InvalidArgumentException |
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*/ |
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private function assertNotRegisteredBus($name) |
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{ |
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if (isset($this->buses[$name])) { |
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throw new InvalidArgumentException(sprintf('Bus with name "%s" is already attached.', $name)); |
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} |
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} |
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/** |
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* Assert valid system bus. |
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* |
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* @param BusInterface $bus |
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*/ |
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private function assertValidSystemBus(BusInterface $bus) |
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{ |
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if (false === $bus instanceof SystemBus) { |
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throw new InvalidArgumentException(sprintf('Bus with name "%s" reserved for system bus.', $bus->getName())); |
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} |
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} |
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} |
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borobudur-php /
borobudur-bus
