Added aggregation query param

Author: haphan

src/Metric/v1/Gnocchi/Api.php

@@ -121,6 +121,7 @@ public function getResourceMetricMeasures(): array
                 'metric'      => $this->params->idUrl('metric'),
                 'type'        => $this->params->resourceType(),
                 'granularity' => $this->params->granularity(),
+                'aggregation' => $this->params->aggregation(),
             ],
         ];
     }

src/Metric/v1/Gnocchi/Params.php

@@ -58,8 +58,16 @@ public function granularity()
     {
         return [
             'location'    => self::QUERY,
-            'type'        => self::STRING,
+            'type'        => self::STRING_TYPE,
             'description' => 'Specify the granularity to retrieve, rather than all the granularities available',
         ];
     }
+
+    public function aggregation()
+    {
+        return [
+            'location'    => self::QUERY,
+            'type'        => self::STRING_TYPE
+        ];
+    }
 }

src/Metric/v1/Gnocchi/Service.php

@@ -28,7 +28,12 @@ public function listResources(array $options = []): \Generator
         return $this->model(Resource::class)->enumerate($this->api->getResources(), $options);
     }
 
-    public function getResource(array $options = []): Resource
+    /**
+     * @param array $options
+     *
+     * @return \OpenStack\Metric\v1\Gnocchi\Models\Resource
+     */
+    public function getResource(array $options = []): \OpenStack\Metric\v1\Gnocchi\Models\Resource
     {
         $this->injectGenericType($options);
 
@@ -40,6 +45,8 @@ public function getResource(array $options = []): Resource
 
     public function searchResources(array $options = []): \Generator
     {
+        $this->injectGenericType($options);
+
         /**
          * $options['criteria'] must send as STRING
          * This will check input $options and perform json_encode if needed.