title: accessing HttpServletRequest object in Spring WebFlow
body: <p>I am using WebFlow and would like to add the current Locale into the flow. 
  I already have a resolveLocale method that does this with this signature:</p>
  
  <pre><code>public Locale resolveLocale (HttpServletRequest request);
  </code></pre>
  
  <p>I would like to add something like this in my WebFlow XML:</p>
  
  <pre><code>&lt;on-start&gt;
  &lt;evaluate expression="localeService.resolveLocale(???)" result="flowScope.locale"/&gt;
  &lt;/on-start&gt;
  </code></pre>
  
  <p>Now, I don't know what to put in the ??? parameter part. <br>
  Any ideas? Thanks for reading.</p>