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<?php |
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namespace Actuator\Slim\Provider; |
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use Actuator\Health\Health; |
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use Actuator\Health\HealthAggregatorInterface; |
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use Actuator\Health\Indicator\CompositeHealthIndicator; |
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use Actuator\Health\Indicator\HealthIndicatorInterface; |
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use Psr\Http\Message\ResponseInterface; |
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class HealthServiceProvider |
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{ |
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/** |
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* @var HealthAggregatorInterface |
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*/ |
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protected $aggregator; |
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/** |
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* @var HealthIndicatorInterface[] |
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*/ |
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protected $indicators; |
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/** |
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* HealthServiceProvider constructor. |
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* @param HealthAggregatorInterface $aggregator |
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* @param \Actuator\Health\Indicator\HealthIndicatorInterface[] $indicators |
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*/ |
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public function __construct(HealthAggregatorInterface $aggregator, array $indicators) |
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{ |
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$this->aggregator = $aggregator; |
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$this->indicators = $indicators; |
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} |
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/** |
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* @param ResponseInterface $response |
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* @return ResponseInterface |
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*/ |
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public function getHealth(ResponseInterface $response) |
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{ |
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$healthResult = $this->getHealthResult(); |
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$healthBody = $this->formatHealthResult($healthResult); |
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$response = $response->withHeader('Content-Type', 'application/json'); |
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$body = $response->getBody(); |
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$body->write(json_encode($healthBody)); |
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return $response; |
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} |
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/** |
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* @return Health |
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*/ |
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private function getHealthResult() |
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{ |
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$healthIndicator = new CompositeHealthIndicator($this->aggregator); |
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foreach ($this->indicators as $key => $entry) { |
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$healthIndicator->addHealthIndicator($key, $entry); |
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} |
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return $healthIndicator->health(); |
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} |
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/** |
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* @param Health $healthResult |
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* @return array |
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*/ |
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private function formatHealthResult(Health $healthResult) |
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{ |
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$healthDetails = array(); |
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foreach ($healthResult->getDetails() as $key => $healthDetail) { |
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$healthDetails[$key] = array_merge( |
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array('status' => $healthDetail->getStatus()->getCode()), |
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$healthDetail->getDetails() |
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); |
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} |
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$healthDetails = array_merge( |
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array('status' => $healthResult->getStatus()->getCode()), |
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$healthDetails |
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); |
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return $healthDetails; |
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} |
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} |
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