Package org.sitemesh.webapp.contentfilter

Provides a mechanism for intercepting content generated by web-apps and making modifications to it.

See: Description

Interface Summary

Interface	Description
Selector	Rules that will be used by the ContentBufferingFilter and HttpServletResponseBuffer to determine whether the response should be buffered.

Class Summary

Class	Description
BasicSelector	Basic implementation of Selector.
ContainerTweaks	Provides details of Servlet container tweaks to apply - necessary because containers behave subtly different.
ContainerTweaks.TomcatTweaks	Container tweaks specific to Tomcat.
ContainerTweaks.WebLogicTweaks	Container tweaks specific to WebLogic.
ContentBufferingFilter	Abstract Filter implementation that writes the main content of a response to a temporary buffer where it can then be post-processed before being served.
HttpServletRequestFilterable	This special HttpServletRequestWrapper is used to allow filtering of the HTTP headers by adding them to an exclusion list.
HttpServletResponseBuffer	Wraps an HttpServletResponse, allowing the output to be buffered.
ResponseMetaData	Holds additional information about the response.

Package org.sitemesh.webapp.contentfilter Description

Provides a mechanism for intercepting content generated by web-apps and making modifications to it.

There are 2 mechanisms for doing this:

1. HttpServletResponseBuffer wraps a HttpServletResponse and to forwards all content written to the response to an intermediate buffer which can be accessed. This can be passed to anything that accepts a standard HttpServlerResponse (such as a RequestDispatcher).
2. ContentBufferingFilter is a Servlet Filter that automatically applies the HttpServletResponseBuffer to requests. To use it, subclass it and implement application specific functionality.

Both of these are suitable for working with text content, but not binary content.