title: Logstash condition to check if message contains any of from list of string
body: <p>I have a javastack trace in message field and an array field having list of string like ["NullPointer", "TimeOutException"].</p>
  
  <p>I want a conditional check on message field such that it checks if message contains any of from list of string.</p>
  
  <p>Any idea how to get this?</p>