title: How to split a file into lines in Camel but process the first line differently
body: <p>I am splitting a file into lines using a tokenizer:</p>
  
  <pre><code>.split().tokenize("\n", 1)
  </code></pre>
  
  <p>However, some of the files I need to process will contain a header line, which will need to be processed differently to the normal lines. Is there an easy way to read the first line, process that, then split the remaining lines?</p>