After invoking NucleusServlet, the web container calls PageFilter filter, which starts execution of the request-handling pipeline for JSP requests by calling the pipeline’s first servlet, /atg/dynamo/servlet/dafpipeline/DynamoHandler. This servlet generates a DynamoHTTPServletRequest that wraps the generic HTTPServletRequest so pipeline servlets can read information from the request and also modify it. A matching DynamoHTTPServletResponse is also generated. DynamoHandler passes the Dynamo request/response pair to the next servlet in the request-handling pipeline.
For more information, see Request Handling with Servlet Pipelines.
To include PageFilter in web.xml:
Insert the filter name and class name in enclosing
<filter>tags.Map the filter to either a directory holding JSPs or the
.jspextension. This information is included in enclosing<filter-mapping>tags.
For example:
<filter> <filter-name>PageFilter</filter-name> <filter-class>atg.filter.dspjsp.PageFilter</filter-class> </filter> <filter-mapping> <filter-name>PageFilter</filter-name> <url-pattern>*.jsp</url-pattern> </filter-mapping>

