add ProducerInterface

RabbitMq/Fallback.php

@@ -2,9 +2,9 @@
 
 namespace OldSound\RabbitMqBundle\RabbitMq;
 
-class Fallback
+class Fallback implements ProducerInterface
 {
-    public function publish()
+    public function publish($msgBody, $routingKey = '', $additionalProperties = array())
     {
         return false;
     }

RabbitMq/Producer.php

@@ -8,7 +8,7 @@
 /**
  * Prodcuer, that publishes AMQP Messages
  */
-class Producer extends BaseAmqp
+class Producer extends BaseAmqp implements ProducerInterface
 {
     protected $contentType = 'text/plain';
     protected $deliveryMode = 2;

RabbitMq/ProducerInterface.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace OldSound\RabbitMqBundle\RabbitMq;
+
+interface ProducerInterface
+{
+    /**
+     * Publish a message
+     *
+     * @param string $msgBody
+     * @param string $routingKey
+     * @param array $additionalProperties
+     */
+    public function publish($msgBody, $routingKey = '', $additionalProperties = array());
+}