From cdd7ad020e165fe680703b6d3319b908b682fb7a Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Fri, 20 Oct 2023 17:12:29 +0300
Subject: jaeger-client -> opentelemetry

---
 .../MetricExporter/ConsoleMetricExporter.php       | 105 +++++++++++++++++++++
 .../ConsoleMetricExporterFactory.php               |  16 ++++
 .../Metrics/MetricExporter/InMemoryExporter.php    |  78 +++++++++++++++
 .../MetricExporter/InMemoryExporterFactory.php     |  16 ++++
 .../Metrics/MetricExporter/NoopMetricExporter.php  |  23 +++++
 .../MetricExporter/NoopMetricExporterFactory.php   |  16 ++++
 .../sdk/Metrics/MetricExporter/_register.php       |   7 ++
 7 files changed, 261 insertions(+)
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporter.php
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporterFactory.php
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporter.php
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporterFactory.php
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporter.php
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporterFactory.php
 create mode 100644 vendor/open-telemetry/sdk/Metrics/MetricExporter/_register.php

(limited to 'vendor/open-telemetry/sdk/Metrics/MetricExporter')

diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporter.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporter.php
new file mode 100644
index 000000000..62ea7b535
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporter.php
@@ -0,0 +1,105 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\MetricExporter;
+
+use OpenTelemetry\SDK\Common\Instrumentation\InstrumentationScopeInterface;
+use OpenTelemetry\SDK\Metrics\AggregationTemporalitySelectorInterface;
+use OpenTelemetry\SDK\Metrics\Data\Metric;
+use OpenTelemetry\SDK\Metrics\Data\Temporality;
+use OpenTelemetry\SDK\Metrics\MetricMetadataInterface;
+use OpenTelemetry\SDK\Metrics\PushMetricExporterInterface;
+use OpenTelemetry\SDK\Resource\ResourceInfo;
+
+/**
+ * Console metrics exporter.
+ * Note that the output is human-readable JSON, not compatible with OTLP.
+ */
+class ConsoleMetricExporter implements PushMetricExporterInterface, AggregationTemporalitySelectorInterface
+{
+    /**
+     * @var string|Temporality|null
+     */
+    private $temporality;
+
+    /**
+     * @param string|Temporality|null $temporality
+     */
+    public function __construct($temporality = null)
+    {
+        $this->temporality = $temporality;
+    }
+    /**
+     * @inheritDoc
+     */
+    public function temporality(MetricMetadataInterface $metric)
+    {
+        return $this->temporality ?? $metric->temporality();
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function export(iterable $batch): bool
+    {
+        $resource = null;
+        $scope = null;
+        foreach ($batch as $metric) {
+            /** @var Metric $metric */
+            if (!$resource) {
+                $resource = $this->convertResource($metric->resource);
+            }
+            if (!$scope) {
+                $scope = $this->convertInstrumentationScope($metric->instrumentationScope);
+                $scope['metrics'] = [];
+            }
+            $scope['metrics'][] = $this->convertMetric($metric);
+        }
+        $output = [
+            'resource' => $resource,
+            'scope' => $scope,
+        ];
+        echo json_encode($output, JSON_PRETTY_PRINT) . PHP_EOL;
+
+        return true;
+    }
+
+    public function shutdown(): bool
+    {
+        return true;
+    }
+
+    public function forceFlush(): bool
+    {
+        return true;
+    }
+
+    private function convertMetric(Metric $metric): array
+    {
+        return [
+            'name' => $metric->name,
+            'description' => $metric->description,
+            'unit' => $metric->unit,
+            'data' => $metric->data,
+        ];
+    }
+
+    private function convertResource(ResourceInfo $resource): array
+    {
+        return [
+            'attributes' => $resource->getAttributes()->toArray(),
+            'dropped_attributes_count' => $resource->getAttributes()->getDroppedAttributesCount(),
+        ];
+    }
+    private function convertInstrumentationScope(InstrumentationScopeInterface $scope): array
+    {
+        return [
+            'name' => $scope->getName(),
+            'version' => $scope->getVersion(),
+            'attributes' => $scope->getAttributes()->toArray(),
+            'dropped_attributes_count' => $scope->getAttributes()->getDroppedAttributesCount(),
+            'schema_url' => $scope->getSchemaUrl(),
+        ];
+    }
+}
diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporterFactory.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporterFactory.php
new file mode 100644
index 000000000..19088738d
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/ConsoleMetricExporterFactory.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\MetricExporter;
+
+use OpenTelemetry\SDK\Metrics\MetricExporterFactoryInterface;
+use OpenTelemetry\SDK\Metrics\MetricExporterInterface;
+
+class ConsoleMetricExporterFactory implements MetricExporterFactoryInterface
+{
+    public function create(): MetricExporterInterface
+    {
+        return new ConsoleMetricExporter();
+    }
+}
diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporter.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporter.php
new file mode 100644
index 000000000..6bbab8b79
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporter.php
@@ -0,0 +1,78 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\MetricExporter;
+
+use function array_push;
+use OpenTelemetry\SDK\Metrics\AggregationTemporalitySelectorInterface;
+use OpenTelemetry\SDK\Metrics\Data\Metric;
+use OpenTelemetry\SDK\Metrics\Data\Temporality;
+use OpenTelemetry\SDK\Metrics\MetricExporterInterface;
+use OpenTelemetry\SDK\Metrics\MetricMetadataInterface;
+
+/**
+ * @see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk_exporters/in-memory.md
+ */
+final class InMemoryExporter implements MetricExporterInterface, AggregationTemporalitySelectorInterface
+{
+    /**
+     * @var list<Metric>
+     */
+    private array $metrics = [];
+    /**
+     * @var string|Temporality|null
+     */
+    private $temporality;
+
+    private bool $closed = false;
+
+    /**
+     * @param string|Temporality|null $temporality
+     */
+    public function __construct($temporality = null)
+    {
+        $this->temporality = $temporality;
+    }
+
+    public function temporality(MetricMetadataInterface $metric)
+    {
+        return $this->temporality ?? $metric->temporality();
+    }
+
+    /**
+     * @return list<Metric>
+     */
+    public function collect(bool $reset = false): array
+    {
+        $metrics = $this->metrics;
+        if ($reset) {
+            $this->metrics = [];
+        }
+
+        return $metrics;
+    }
+
+    public function export(iterable $batch): bool
+    {
+        if ($this->closed) {
+            return false;
+        }
+
+        /** @psalm-suppress InvalidPropertyAssignmentValue */
+        array_push($this->metrics, ...$batch);
+
+        return true;
+    }
+
+    public function shutdown(): bool
+    {
+        if ($this->closed) {
+            return false;
+        }
+
+        $this->closed = true;
+
+        return true;
+    }
+}
diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporterFactory.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporterFactory.php
new file mode 100644
index 000000000..c72c7b169
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/InMemoryExporterFactory.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\MetricExporter;
+
+use OpenTelemetry\SDK\Metrics\MetricExporterFactoryInterface;
+use OpenTelemetry\SDK\Metrics\MetricExporterInterface;
+
+class InMemoryExporterFactory implements MetricExporterFactoryInterface
+{
+    public function create(): MetricExporterInterface
+    {
+        return new InMemoryExporter();
+    }
+}
diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporter.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporter.php
new file mode 100644
index 000000000..0cac12fae
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporter.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\MetricExporter;
+
+use OpenTelemetry\SDK\Metrics\MetricExporterInterface;
+
+class NoopMetricExporter implements MetricExporterInterface
+{
+    /**
+     * @inheritDoc
+     */
+    public function export(iterable $batch): bool
+    {
+        return true;
+    }
+
+    public function shutdown(): bool
+    {
+        return true;
+    }
+}
diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporterFactory.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporterFactory.php
new file mode 100644
index 000000000..ab2ab2af3
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/NoopMetricExporterFactory.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\MetricExporter;
+
+use OpenTelemetry\SDK\Metrics\MetricExporterFactoryInterface;
+use OpenTelemetry\SDK\Metrics\MetricExporterInterface;
+
+class NoopMetricExporterFactory implements MetricExporterFactoryInterface
+{
+    public function create(): MetricExporterInterface
+    {
+        return new NoopMetricExporter();
+    }
+}
diff --git a/vendor/open-telemetry/sdk/Metrics/MetricExporter/_register.php b/vendor/open-telemetry/sdk/Metrics/MetricExporter/_register.php
new file mode 100644
index 000000000..fba543d02
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/MetricExporter/_register.php
@@ -0,0 +1,7 @@
+<?php
+
+declare(strict_types=1);
+
+\OpenTelemetry\SDK\Registry::registerMetricExporterFactory('memory', \OpenTelemetry\SDK\Metrics\MetricExporter\InMemoryExporterFactory::class);
+\OpenTelemetry\SDK\Registry::registerMetricExporterFactory('console', \OpenTelemetry\SDK\Metrics\MetricExporter\ConsoleMetricExporterFactory::class);
+\OpenTelemetry\SDK\Registry::registerMetricExporterFactory('none', \OpenTelemetry\SDK\Metrics\MetricExporter\NoopMetricExporterFactory::class);
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