diff options
Diffstat (limited to 'vendor/open-telemetry/sdk/Metrics/View/CriteriaViewRegistry.php')
-rw-r--r-- | vendor/open-telemetry/sdk/Metrics/View/CriteriaViewRegistry.php | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Metrics/View/CriteriaViewRegistry.php b/vendor/open-telemetry/sdk/Metrics/View/CriteriaViewRegistry.php new file mode 100644 index 000000000..f387abf9c --- /dev/null +++ b/vendor/open-telemetry/sdk/Metrics/View/CriteriaViewRegistry.php @@ -0,0 +1,40 @@ +<?php + +declare(strict_types=1); + +namespace OpenTelemetry\SDK\Metrics\View; + +use Generator; +use OpenTelemetry\SDK\Common\Instrumentation\InstrumentationScopeInterface; +use OpenTelemetry\SDK\Metrics\Instrument; +use OpenTelemetry\SDK\Metrics\ViewRegistryInterface; + +final class CriteriaViewRegistry implements ViewRegistryInterface +{ + /** @var list<SelectionCriteriaInterface> */ + private array $criteria = []; + /** @var list<ViewTemplate> */ + private array $views = []; + + public function register(SelectionCriteriaInterface $criteria, ViewTemplate $view): void + { + $this->criteria[] = $criteria; + $this->views[] = $view; + } + + public function find(Instrument $instrument, InstrumentationScopeInterface $instrumentationScope): ?iterable + { + $views = $this->generateViews($instrument, $instrumentationScope); + + return $views->valid() ? $views : null; + } + + private function generateViews(Instrument $instrument, InstrumentationScopeInterface $instrumentationScope): Generator + { + foreach ($this->criteria as $i => $criteria) { + if ($criteria->accepts($instrument, $instrumentationScope)) { + yield $this->views[$i]->project($instrument); + } + } + } +} |