Added retention policy as option

src/InfluxDB/Adapter/AdapterAbstract.php

@@ -27,6 +27,7 @@ abstract class AdapterAbstract implements AdapterInterface
     {
         return [
             "database" => $this->getOptions()->getDatabase(),
+            "retentionPolicy" => $this->getOptions()->getRetentionPolicy(),
         ];
     }
 

src/InfluxDB/Options.php

@@ -37,16 +37,31 @@ class Options
      */
     private $database;
 
+    private $retentionPolicy;
+
     /**
      * Set default options
      */
     public function __construct()
     {
-        $this->host = "localhost";
-        $this->port = 8086;
-        $this->username = "root";
-        $this->password = "root";
+        $this->setHost("localhost");
+        $this->setPort(8086);
+        $this->setUsername("root");
+        $this->setPassword("root");
         $this->setProtocol("http");
+
+        $this->setRetentionPolicy("default");
+    }
+
+    public function getRetentionPolicy()
+    {
+        return $this->retentionPolicy;
+    }
+
+    public function setRetentionPolicy($retentionPolicy)
+    {
+        $this->retentionPolicy = $retentionPolicy;
+        return $this;
     }
 
     /**
@@ -57,19 +72,12 @@ class Options
         return $this->protocol;
     }
 
-    /**
-     * @param string $protocol
-     * @return Options
-     */
     public function setProtocol($protocol)
     {
         $this->protocol = $protocol;
         return $this;
     }
 
-    /**
-     * @return string
-     */
     public function getHost()
     {
        return $this->host;
@@ -81,82 +89,50 @@ class Options
         return $this;
     }
 
-    /**
-     * @return string|int
-     */
     public function getPort()
     {
         return $this->port;
     }
 
-    /**
-     * @param string|int $port
-     * @return Options
-     */
     public function setPort($port)
     {
         $this->port = $port;
         return $this;
     }
 
-    /**
-     * @return string
-     */
     public function getUsername()
     {
         return $this->username;
     }
 
-    /**
-     * @param string $usarname
-     * @return Options
-     */
     public function setUsername($username)
     {
         $this->username = $username;
         return $this;
     }
 
-    /**
-     * @return string
-     */
     public function getPassword()
     {
         return $this->password;
     }
 
-    /**
-     * @param string $password
-     * @return Options
-     */
     public function setPassword($password)
     {
         $this->password = $password;
         return $this;
     }
 
-    /**
-     * @return string
-     */
     public function getDatabase()
     {
         return $this->database;
     }
 
-    /**
-     * @param string $database
-     * @return Options
-     */
     public function setDatabase($database)
     {
         $this->database = $database;
         return $this;
     }
 
-    /**
-     * Build http series edpoint
-     * @return string
-     */
     public function getHttpSeriesEndpoint()
     {
         return sprintf(
@@ -167,11 +143,6 @@ class Options
         );
     }
 
-    /**
-     * Build http database endpoint by name
-     * @param string $name
-     * @return string
-     */
     public function getHttpQueryEndpoint($name = false)
     {
         $url = sprintf(