Can i use filebeat to filter tomcate log?

i installed Logstash and elasticsearch from the below tutorial

and tomcat logs successfully appear but i need to cut on the request on spastic words "Is that possible by Filtering "
the request
topup/img/pass_bg.png HTTP/1.1 304 - [Mozilla/5.0 (Windows NT 6.1; rv:43.0) Gecko/20100101 Firefox/43.0] http:///topup4/img/style_login.css

Also i need tutorial how to use Filter using filebeat ?

Let's keep it in How to use filebeat to filter the tomcate log?