initial commit

src/PrometheusServiceProvider.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Superbalist\LaravelPrometheusExporter;
+
+use Illuminate\Support\ServiceProvider;
+use Prometheus\CollectorRegistry;
+use Prometheus\Storage\Adapter;
+
+class PrometheusServiceProvider extends ServiceProvider
+{
+    /**
+     * Perform post-registration booting of services.
+     */
+    public function boot()
+    {
+        $this->publishes([
+            __DIR__ . '/../config/prometheus.php' => config_path('prometheus.php'),
+        ]);
+
+        if (config('prometheus.metrics_route_enabled')) {
+            $this->loadRoutesFrom(__DIR__ . '/routes.php');
+        }
+
+        $exporter = $this->app->make(PrometheusExporter::class); /** @var PrometheusExporter $exporter */
+        foreach (config('prometheus.collectors') as $class) {
+            $collector = $this->app->make($class);
+            $exporter->registerCollector($collector);
+        }
+    }
+
+    /**
+     * Register bindings in the container.
+     */
+    public function register()
+    {
+        $this->mergeConfigFrom(__DIR__ . '/../config/prometheus.php', 'prometheus');
+
+        $this->app->singleton(PrometheusExporter::class, function ($app) {
+            $adapter = $app['prometheus.storage_adapter'];
+            $prometheus = new CollectorRegistry($adapter);
+            return new PrometheusExporter(config('prometheus.namespace'), $prometheus);
+        });
+        $this->app->alias(PrometheusExporter::class, 'prometheus');
+
+        $this->app->bind('prometheus.storage_adapter_factory', function ($app) {
+            return new StorageAdapterFactory($app);
+        });
+
+        $this->app->bind(Adapter::class, function ($app) {
+            $factory = $app['prometheus.storage_adapter_factory']; /** @var StorageAdapterFactory $factory */
+            $driver = config('prometheus.storage_adapter');
+            $configs = config('storage_adapters');
+            $config = array_get($configs, $driver, []);
+            return $factory->make($driver, $config);
+        });
+        $this->app->alias(Adapter::class, 'prometheus.storage_adapter');
+    }
+
+    /**
+     * Get the services provided by the provider.
+     *
+     * @return array
+     */
+    public function provides()
+    {
+        return [
+            'prometheus',
+            'prometheus.storage_adapter_factory',
+            'prometheus.storage_adapter',
+        ];
+    }
+}