Always end TCP message with newline character

Author: Paweł Niedzielski

src/InfluxDB/Driver/AbstractSocketDriver.php

@@ -75,7 +75,9 @@ public function write($data = null)
             $this->createStream();
         }
 
-        $this->doWrite($data);
+        if ($data !== null) {
+            $this->doWrite($data);
+        }
     }
 
     /**
@@ -85,9 +87,9 @@ abstract public function isSuccess();
 
     /**
      * Perform write to socket
-     * @param mixed|null $data
+     * @param mixed $data
      */
-    abstract protected function doWrite($data = null);
+    abstract protected function doWrite($data);
 
     /**
      * Create the resource stream

src/InfluxDB/Driver/TCP.php

@@ -37,8 +37,8 @@ protected function createStream()
     /**
      * {@inheritdoc}
      */
-    protected function doWrite($data = null)
+    protected function doWrite($data)
     {
-        $this->result = false !== @fwrite($this->stream, $data);
+        $this->result = false !== @fwrite($this->stream, "$data\n");
     }
 }

src/InfluxDB/Driver/UDP.php

@@ -34,7 +34,7 @@ protected function createStream()
     /**
      * {@inheritdoc}
      */
-    protected function doWrite($data = null)
+    protected function doWrite($data)
     {
         @stream_socket_sendto($this->stream, $data);
     }