messageRead

<!-- Calling messageRead and replacing all commmas with pipes -->
<arc:call op="messageRead" out="result" >
  <arc:set attr="messageOut.data" value="[result.data | replace(',','|')]" />
</arc:call>

<!-- Checking to make sure the output message has data, else throw an error -->
<arc:check attr="messageOut.data" >
  <arc:set attr="messageOut.filename" value="[FileName]" />
  <arc:push item="messageOut" />
  <arc:else>
    <arc:throw code="NoData" desc="No message data." />
  </arc:else>
</arc:check>