Changed the FormatterInterface to return only the formatted message and added a batch formatting method

src/Monolog/Formatter/WildfireFormatter.php

@@ -18,7 +18,7 @@ use Monolog\Logger;
  *
  * @author Eric Clemmons (@ericclemmons) <eric@uxdriven.com>
  */
-class WildfireFormatter extends LineFormatter implements FormatterInterface
+class WildfireFormatter extends LineFormatter
 {
     /**
      * Similar to LineFormatter::SIMPLE_FORMAT, except without the "[%datetime%]"
@@ -43,7 +43,7 @@ class WildfireFormatter extends LineFormatter implements FormatterInterface
     public function format(array $record)
     {
         // Format record according with LineFormatter
-        $formatted = parent::format($record);
+        $message = parent::format($record);
 
         // Create JSON object describing the appearance of the message in the console
         $json = json_encode(array(
@@ -52,17 +52,19 @@ class WildfireFormatter extends LineFormatter implements FormatterInterface
                 'File'  =>  '',
                 'Line'  =>  '',
             ),
-            $formatted['message'],
+            $message,
         ));
 
         // The message itself is a serialization of the above JSON object + it's length
-        $formatted['message'] = sprintf(
+        return sprintf(
             '%s|%s|',
             strlen($json),
             $json
         );
-
-        return $formatted;
     }
 
+    public function formatBatch(array $records)
+    {
+        throw new \BadMethodCallException('Batch formatting does not make sense for the WildfireFormatter');
+    }
 }