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<?php
declare(strict_types=1);
namespace OpenTracing\Mock;
use OpenTracing\SpanContext;
use ArrayIterator;
final class MockSpanContext implements SpanContext
{
/**
* @var int
*/
private $traceId;
/**
* @var int
*/
private $spanId;
/**
* @var bool
*/
private $isSampled;
/**
* @var array
*/
private $items;
private function __construct(int $traceId, int $spanId, bool $isSampled, array $items)
{
$this->traceId = $traceId;
$this->spanId = $spanId;
$this->isSampled = $isSampled;
$this->items = $items;
}
public static function create(int $traceId, int $spanId, bool $sampled = true, array $items = []): SpanContext
{
return new self($traceId, $spanId, $sampled, $items);
}
public static function createAsRoot(bool $sampled = true, array $items = []): SpanContext
{
$traceId = $spanId = self::nextId();
return new self($traceId, $spanId, $sampled, $items);
}
public static function createAsChildOf(MockSpanContext $spanContext): SpanContext
{
$spanId = self::nextId();
return new self($spanContext->traceId, $spanId, $spanContext->isSampled, $spanContext->items);
}
public function getTraceId(): int
{
return $this->traceId;
}
public function getSpanId(): int
{
return $this->spanId;
}
public function isSampled(): bool
{
return $this->isSampled;
}
/**
* {@inheritdoc}
*/
public function getIterator(): ArrayIterator
{
return new ArrayIterator($this->items);
}
/**
* {@inheritdoc}
*/
public function getBaggageItem(string $key): ?string
{
return array_key_exists($key, $this->items) ? $this->items[$key] : null;
}
/**
* {@inheritdoc}
*/
public function withBaggageItem(string $key, string $value): SpanContext
{
return new self($this->traceId, $this->spanId, $this->isSampled, array_merge($this->items, [$key => $value]));
}
private static function nextId(): int
{
return mt_rand(0, 99999);
}
}
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