initial commit

src/StorageAdapterFactory.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace Superbalist\LaravelPrometheusExporter;
+
+use Illuminate\Contracts\Container\Container;
+use InvalidArgumentException;
+use Prometheus\Storage\Adapter;
+use Prometheus\Storage\APC;
+use Prometheus\Storage\InMemory;
+use Prometheus\Storage\Redis;
+
+class StorageAdapterFactory
+{
+    /**
+     * @var Container
+     */
+    protected $container;
+
+    /**
+     * @param Container $container
+     */
+    public function __construct(Container $container)
+    {
+        $this->container = $container;
+    }
+
+    /**
+     * Factory a storage adapter.
+     *
+     * @param string $driver
+     * @param array $config
+     * @return Adapter
+     */
+    public function make($driver, array $config = [])
+    {
+        switch ($driver) {
+            case 'memory':
+                return new InMemory();
+            case 'redis':
+                return $this->makeRedisAdapter($config);
+            case 'apc':
+                return new APC();
+        }
+
+        throw new InvalidArgumentException(sprintf('The driver [%s] is not supported.', $driver));
+    }
+
+    /**
+     * Factory a redis storage adapter.
+     *
+     * @param array $config
+     * @return Redis
+     */
+    protected function makeRedisAdapter(array $config)
+    {
+        if (isset($config['prefix'])) {
+            Redis::setPrefix($config['prefix']);
+        }
+        return new Redis($config);
+    }
+}