From 8f3646a9c93a06f76f6abb31020fdb74b4b1fc59 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Sun, 9 Apr 2023 20:50:33 +0300
Subject: exp: jaeger tracing

---
 .../src/Jaeger/Sampler/ConstSampler.php            | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 vendor/jonahgeorge/jaeger-client-php/src/Jaeger/Sampler/ConstSampler.php

(limited to 'vendor/jonahgeorge/jaeger-client-php/src/Jaeger/Sampler/ConstSampler.php')

diff --git a/vendor/jonahgeorge/jaeger-client-php/src/Jaeger/Sampler/ConstSampler.php b/vendor/jonahgeorge/jaeger-client-php/src/Jaeger/Sampler/ConstSampler.php
new file mode 100644
index 000000000..7c6ba3d62
--- /dev/null
+++ b/vendor/jonahgeorge/jaeger-client-php/src/Jaeger/Sampler/ConstSampler.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Jaeger\Sampler;
+
+use const Jaeger\SAMPLER_PARAM_TAG_KEY;
+use const Jaeger\SAMPLER_TYPE_CONST;
+use const Jaeger\SAMPLER_TYPE_TAG_KEY;
+
+/**
+ * ConstSampler always returns the same decision.
+ *
+ * @package Jaeger\Sampler
+ */
+class ConstSampler implements SamplerInterface
+{
+    /**
+     * Whether or not the new trace should be sampled.
+     *
+     * @var bool
+     */
+    private $decision;
+
+    /**
+     * A list of the sampler tags.
+     *
+     * @var array
+     */
+    private $tags = [];
+
+    /**
+     * ConstSampler constructor.
+     *
+     * @param bool $decision
+     */
+    public function __construct(bool $decision = true)
+    {
+        $this->tags = [
+            SAMPLER_TYPE_TAG_KEY => SAMPLER_TYPE_CONST,
+            SAMPLER_PARAM_TAG_KEY => $decision,
+        ];
+
+        $this->decision = $decision;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param string $traceId   The traceId on the span.
+     * @param string $operation The operation name set on the span.
+     * @return array
+     */
+    public function isSampled(string $traceId, string $operation = ''): array
+    {
+        return [$this->decision, $this->tags];
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * Only implemented to satisfy the sampler interface.
+     *
+     * @return void
+     */
+    public function close()
+    {
+        // nothing to do
+    }
+}
-- 
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