Fix composer.json, check if Amazon SDK installed

Author: yukato

composer.json

@@ -21,13 +21,15 @@
     "illuminate/database": "~4.2|^5",
     "illuminate/config": "~4.2|^5",
     "nesbot/carbon": "~1.0",
-    "elasticsearch/elasticsearch": ">1.0 <2.2",
-    "aws/aws-sdk-php": "^3.18"
+    "elasticsearch/elasticsearch": ">1.0 <2.2"
   },
   "require-dev": {
     "phpunit/phpunit": "~4.2|~5.0",
     "mockery/mockery": "^0.9.4"
   },
+  "suggest": {
+    "aws/aws-sdk-php": "^3.18"
+  },
   "autoload": {
     "psr-4": {
       "Elasticquent\\": "src/"

src/ElasticSearchClientFactory.php

@@ -54,6 +54,10 @@ public function getClient()
      */
     private function getAwsESHandler()
     {
+        if (!class_exists('\Aws\default_http_handler')) {
+            return false;
+        }
+
         $awsConfig = $this->getElasticConfig('aws');
         if (empty($awsConfig)) {
             return false;