Add client factory to config, allow user to create client with specific options

Author: datashaman

.gitignore

@@ -6,3 +6,4 @@
 .DS_Store
 .env
 Thumbs.db
+/travis.log

config/elasticsearch.php

@@ -5,6 +5,12 @@
     // It is expanded here to an array of host definitions.
     'hosts' => explode(',', env('ELASTICSEARCH_HOSTS', 'localhost:9200')),
 
+    // Use a factory callable to create the Elasticsearch client. Accepts the app instance as the only parameter.
+    // 'clientFactory' => [
+    //     App\ClientFactory::class,
+    //     'make',
+    // ]
+
     // Optionally specify global retries for operations, defaults to number of nodes in cluster.
     // 'retries' => 3,
 

src/ClientFactory.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Datashaman\Elasticsearch\Model;
+
+use Elasticsearch\ClientBuilder;
+
+class ClientFactory
+{
+    public static function make($app)
+    {
+        $config = array_get(
+            $app['config'],
+            'elasticsearch',
+            [
+                'hosts' => '127.0.0.1:9200',
+            ]
+        );
+
+        return ClientBuilder::fromConfig($config, true);
+    }
+}

src/ServiceProvider.php

@@ -2,8 +2,6 @@
 
 namespace Datashaman\Elasticsearch\Model;
 
-use Elasticsearch\ClientBuilder;
-
 class ServiceProvider extends \Illuminate\Support\ServiceProvider
 {
     /**
@@ -24,17 +22,16 @@ public function register()
         $this->mergeConfigFrom($configPath, 'elasticsearch');
 
         $this->app->singleton('elasticsearch', function ($app) {
-            $config = array_get(
-                $app['config'],
-                'elasticsearch',
+            $clientFactory = array_get(
+                $app,
+                'config.clientFactory',
                 [
-                    'hosts' => '127.0.0.1:9200',
+                    ClientFactory::class,
+                    'make'
                 ]
             );
 
-            $client = ClientBuilder::fromConfig($config, true);
-
-            return $client;
+            return call_user_func($clientFactory, $app);
         });
     }