Added some temporary timer logging (to be removed.)

handlers/batch-email-sender/src/main/scala/com/gu/batchemailsender/api/batchemail/SqsSendBatch.scala

@@ -11,11 +11,16 @@ object SqsSendBatch extends Logging {
 
   def sendBatchSync(sqsSend: Payload => Try[Unit])(emailBatchItems: List[EmailBatchItem]): List[EmailBatchItemId] = {
     def sendAndRetainItemIdOnFailure(payload: Payload, emailBatchItemId: EmailBatchItemId): Option[EmailBatchItemId] = {
-      Try(sqsSend(payload)) match {
+      val stopWatch = new StopWatch
+      val result: Option[EmailBatchItemId] = Try(sqsSend(payload)) match {
         case Success(_) => None
         case Failure(_) =>
           Some(emailBatchItemId)
       }
+
+      logger.info(s"We added emailbatchId ${emailBatchItemId} to the queue and it took ${stopWatch.elapsed} ms" )
+
+      result
     }
 
     emailBatchItems flatMap { emailBatchItem: EmailBatchItem =>
@@ -28,3 +33,16 @@ object SqsSendBatch extends Logging {
 
   }
 }
+
+//TODO: remove!
+object StopWatch {
+  def apply() = new StopWatch
+}
+
+class StopWatch {
+  private val startTime = System.currentTimeMillis
+
+  def elapsed: Long = System.currentTimeMillis - startTime
+
+  override def toString() = s"${elapsed}ms"
+}