php adapter for metric collection, more tests

1 files changed, 103 insertions, 0 deletions

diff --git a/src/Metrics.php b/src/Metrics.php
new file mode 100644
index 00000000..c07a1e7a
--- /dev/null
+++ b/src/Metrics.php
@@ -0,0 +1,103 @@
+<?php
+/**
+ * Spiral Framework.
+ *
+ * @license   MIT
+ * @author    Anton Titov (Wolfy-J)
+ */
+declare(strict_types=1);
+
+namespace Spiral\RoadRunner;
+
+use Spiral\Goridge\Exceptions\RPCException;
+use Spiral\Goridge\RPC;
+use Spiral\RoadRunner\Exception\MetricException;
+
+/**
+ * Application metrics.
+ */
+final class Metrics
+{
+    /** @var RPC */
+    private $rpc;
+
+    /**
+     * @param RPC $rpc
+     */
+    public function __construct(RPC $rpc)
+    {
+        $this->rpc = $rpc;
+    }
+
+    /**
+     * Add collector value. Fallback to appropriate method of related collector.
+     *
+     * @param string $collector
+     * @param float  $value
+     * @param array  $labels
+     *
+     * @throws MetricException
+     */
+    public function add(string $collector, float $value, array $labels = [])
+    {
+        try {
+            $this->rpc->call('metrics.Add', compact('collector', 'value', 'labels'));
+        } catch (RPCException $e) {
+            throw new MetricException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * Subtract the collector value, only for gauge collector.
+     *
+     * @param string $collector
+     * @param float  $value
+     * @param array  $labels
+     *
+     * @throws MetricException
+     */
+    public function sub(string $collector, float $value, array $labels = [])
+    {
+        try {
+            $this->rpc->call('metrics.Sub', compact('collector', 'value', 'labels'));
+        } catch (RPCException $e) {
+            throw new MetricException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * Observe collector value, only for histogram and summary collectors.
+     *
+     * @param string $collector
+     * @param float  $value
+     * @param array  $labels
+     *
+     * @throws MetricException
+     */
+    public function observe(string $collector, float $value, array $labels = [])
+    {
+        try {
+            $this->rpc->call('metrics.Observe', compact('collector', 'value', 'labels'));
+        } catch (RPCException $e) {
+            throw new MetricException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    /**
+     * Set collector value, only for gauge collector.
+     *
+     * @param string $collector
+     * @param float  $value
+     * @param array  $labels
+     *
+     * @throws MetricException
+     */
+    public function set(string $collector, float $value, array $labels = [])
+    {
+        try {
+            $this->rpc->call('metrics.Set', compact('collector', 'value', 'labels'));
+        } catch (RPCException $e) {
+            throw new MetricException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+}
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