title: File naming convention definition in Sonar
body: <p>I have a java project with a couple of layers. I want to define a rules for file naming convention in Sonar server, e.g. each file in package <code>app.name.dao</code> to have name like <code>ClassNameDAO.java</code>.</p>
  
  <p>Is this possible with some of the tools which Sonar is using?</p>