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<?php |
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namespace Krenor\Prometheus; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Psr7\Request; |
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use function GuzzleHttp\Psr7\stream_for; |
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use Krenor\Prometheus\Renderer\TextRenderer; |
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class PushGateway |
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{ |
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/** |
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* @var Client |
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*/ |
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protected $client; |
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/** |
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* @var CollectorRegistry |
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*/ |
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protected $registry; |
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/** |
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* PushGateway constructor. |
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* |
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* @param Client $client |
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* @param CollectorRegistry $registry |
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*/ |
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public function __construct(Client $client, CollectorRegistry $registry) |
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{ |
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$this->client = $client; |
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$this->registry = $registry; |
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} |
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/** |
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* @param string $job |
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* @param string|null $instance |
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* |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* |
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* @return bool |
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*/ |
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public function add(string $job, ?string $instance = null): bool |
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{ |
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return $this->request('POST', ...func_get_args()); |
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} |
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/** |
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* @param string $job |
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* @param string|null $instance |
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* |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* |
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* @return bool |
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*/ |
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public function replace(string $job, ?string $instance = null): bool |
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{ |
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return $this->request('PUT', ...func_get_args()); |
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} |
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/** |
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* @param string $job |
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* @param string|null $instance |
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* |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* |
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* @return bool |
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*/ |
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public function delete(string $job, ?string $instance = null): bool |
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{ |
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return $this->request('DELETE', ...func_get_args()); |
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} |
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/** |
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* @param string $method |
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* @param string $job |
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* @param string|null $instance |
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* |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* |
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* @return bool |
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*/ |
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protected function request(string $method, string $job, ?string $instance = null): bool |
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{ |
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$request = new Request($method, $instance === null ? "job/{$job}" : "job/{$job}/instance/{$instance}"); |
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$options = [ |
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'headers' => [ |
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'Content-Type' => TextRenderer::CONTENT_TYPE, |
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], |
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]; |
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if ($method !== 'DELETE') { |
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$options['body'] = stream_for( |
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(new TextRenderer) |
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->render($this->registry->collect()) |
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); |
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} |
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return $this |
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->client |
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->send($request, $options) |
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->getStatusCode() === 202; |
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} |
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} |
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krenor /
prometheus-client
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