69 lines
1.5 KiB
PHP
69 lines
1.5 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace OpenTelemetry\SDK\Common\Configuration\Resolver;
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use OpenTelemetry\SDK\Common\Configuration\Configuration;
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/**
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* @interal
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*/
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class CompositeResolver
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{
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// @var array<ResolverInterface>
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private array $resolvers = [];
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public static function instance(): self
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{
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static $instance;
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$instance ??= new self([
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new PhpIniResolver(),
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new EnvironmentResolver(),
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]);
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return $instance;
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}
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public function __construct($resolvers)
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{
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foreach ($resolvers as $resolver) {
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$this->addResolver($resolver);
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}
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}
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public function addResolver(ResolverInterface $resolver): void
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{
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$this->resolvers[] = $resolver;
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}
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public function getResolvers(): array
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{
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return $this->resolvers;
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}
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public function resolve(string $variableName, $default = '')
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{
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foreach ($this->resolvers as $resolver) {
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if ($resolver->hasVariable($variableName)) {
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return $resolver->retrieveValue($variableName);
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}
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}
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return Configuration::isEmpty($default)
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? Configuration::getDefault($variableName)
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: $default;
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}
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public function hasVariable(string $variableName): bool
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{
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foreach ($this->resolvers as $resolver) {
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if ($resolver->hasVariable($variableName)) {
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return true;
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}
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}
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return false;
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}
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}
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