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<?php |
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namespace Basis; |
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use Exception; |
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use LinkORB\Component\Etcd\Client; |
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class Service |
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{ |
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private $client; |
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private $name; |
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public function __construct($name, Client $client) |
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{ |
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$this->client = $client; |
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$this->name = $name; |
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} |
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public function eventExists(string $event) : bool |
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{ |
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return $this->exists("events/$event"); |
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} |
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public function getName() : string |
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{ |
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return $this->name; |
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} |
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public function register() |
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{ |
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$this->store("services/$this->name"); |
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} |
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public function listServices() : array |
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{ |
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$this->client->setRoot('services'); |
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$services = []; |
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foreach ($this->client->ls() as $entry) { |
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$name = substr($entry, strlen('/services/')); |
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if ($name) { |
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$services[] = $name; |
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} |
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} |
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return $services; |
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} |
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public function registerRoute(string $route) |
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{ |
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$this->store("routes/$route", $this->name); |
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} |
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public function subscribe(string $event) |
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{ |
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$this->store("events/$event/$this->name"); |
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} |
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public function unsubscribe(string $event) |
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{ |
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$this->remove("events/$event/$this->name"); |
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} |
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private function exists(string $path) : bool |
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{ |
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$chain = explode('/', $path); |
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$key = array_pop($chain); |
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$folder = implode('/', $chain); |
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try { |
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$this->client->setRoot($folder); |
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$this->client->get($key); |
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} catch (Exception $e) { |
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return false; |
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} |
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return true; |
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} |
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private function store(string $path, $value = null) |
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{ |
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$chain = explode('/', $path); |
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$key = array_pop($chain); |
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$folder = implode('/', $chain); |
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$this->client->setRoot($folder); |
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try { |
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$this->client->ls('.'); |
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} catch (Exception $e) { |
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$this->client->mkdir('.'); |
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} |
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try { |
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if ($this->client->get($key) != $value) { |
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$this->client->set($key, $value); |
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} |
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} catch (Exception $e) { |
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$this->client->set($key, $value); |
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} |
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} |
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private function remove(string $path) |
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{ |
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$chain = explode('/', $path); |
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$key = array_pop($chain); |
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$folder = implode('/', $chain); |
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$this->client->setRoot($folder); |
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try { |
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$this->client->ls('.'); |
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} catch (Exception $e) { |
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$this->client->mkdir('.'); |
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} |
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try { |
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$this->client->rm($key); |
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} catch (Exception $e) { |
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} |
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} |
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} |
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basis-company /
framework.php
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