blob: 5f7f9988d9f16717bfaa03ed1e7b74dddd597ac5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
<?php
declare(strict_types=1);
namespace OpenTelemetry\SDK\Metrics;
use InvalidArgumentException;
use OpenTelemetry\API\Behavior\LogsMessagesTrait;
use OpenTelemetry\SDK\Common\Configuration\Configuration;
use OpenTelemetry\SDK\Common\Configuration\KnownValues;
use OpenTelemetry\SDK\Common\Configuration\Variables;
use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilter\AllExemplarFilter;
use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilter\NoneExemplarFilter;
use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilter\WithSampledTraceExemplarFilter;
use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilterInterface;
use OpenTelemetry\SDK\Metrics\MetricExporter\NoopMetricExporter;
use OpenTelemetry\SDK\Metrics\MetricReader\ExportingReader;
use OpenTelemetry\SDK\Registry;
use OpenTelemetry\SDK\Resource\ResourceInfoFactory;
use OpenTelemetry\SDK\Sdk;
class MeterProviderFactory
{
use LogsMessagesTrait;
/**
* @todo https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk_exporters/otlp.md#general
* - "The exporter MUST configure the default aggregation on the basis of instrument kind using the
* OTEL_EXPORTER_OTLP_METRICS_DEFAULT_HISTOGRAM_AGGREGATION variable as described below if it is implemented."
*/
public function create(): MeterProviderInterface
{
if (Sdk::isDisabled()) {
return new NoopMeterProvider();
}
$exporters = Configuration::getList(Variables::OTEL_METRICS_EXPORTER);
//TODO "The SDK MAY accept a comma-separated list to enable setting multiple exporters"
if (count($exporters) !== 1) {
throw new InvalidArgumentException(sprintf('Configuration %s requires exactly 1 exporter', Variables::OTEL_METRICS_EXPORTER));
}
$exporterName = $exporters[0];
try {
$factory = Registry::metricExporterFactory($exporterName);
$exporter = $factory->create();
} catch (\Throwable $t) {
self::logWarning(sprintf('Unable to create %s meter provider: %s', $exporterName, $t->getMessage()));
$exporter = new NoopMetricExporter();
}
// @todo "The exporter MUST be paired with a periodic exporting MetricReader"
$reader = new ExportingReader($exporter);
$resource = ResourceInfoFactory::defaultResource();
$exemplarFilter = $this->createExemplarFilter(Configuration::getEnum(Variables::OTEL_METRICS_EXEMPLAR_FILTER));
return MeterProvider::builder()
->setResource($resource)
->addReader($reader)
->setExemplarFilter($exemplarFilter)
->build();
}
private function createExemplarFilter(string $name): ExemplarFilterInterface
{
switch ($name) {
case KnownValues::VALUE_WITH_SAMPLED_TRACE:
return new WithSampledTraceExemplarFilter();
case KnownValues::VALUE_ALL:
return new AllExemplarFilter();
case KnownValues::VALUE_NONE:
return new NoneExemplarFilter();
default:
self::logWarning('Unknown exemplar filter: ' . $name);
return new NoneExemplarFilter();
}
}
}
|
