org.chwf.servlet.view
Class TemplateFilter

java.lang.Object
  |
  +--org.chwf.servlet.filter.FilterSupport
        |
        +--org.chwf.servlet.view.TemplateFilter

All Implemented Interfaces:

javax.servlet.Filter

public class TemplateFilter

extends FilterSupport

A filter that invokes a template, passing in the chain to the target URI. The template can insert the target page (body uri) using the <ji18n:includeBody> tag.

The target page is embedded into the template using an include rather than the doChain() method. This means that once the TemplateFilter is invoked, no further filters will be called. The TemplateFilter should be the last filter in the chain. The only filter that can follow the TemplateFilter is the ResourceMapper.

Author:

Paul Strack

Field Summary

static java.lang.String

BODY_URI Request attribute caching the body URI

Constructor Summary

TemplateFilter()

Method Summary

void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain) Invokes the page template, or the page itself if there is no template.
static java.lang.String	getBodyURI(javax.servlet.http.HttpServletRequest request) Get the template body URI (the included page) for this request.

Methods inherited from class org.chwf.servlet.filter.FilterSupport

destroy, doHttpFilter, getConfig, init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BODY_URI

public static final java.lang.String BODY_URI

Request attribute caching the body URI

Constructor Detail

TemplateFilter

public TemplateFilter()

Method Detail

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws java.io.IOException,
                     javax.servlet.ServletException

Invokes the page template, or the page itself if there is no template.

Overrides:

doFilter in class FilterSupport

Parameters:

request - The request.

response - The response.

chain - The filter chain.

Throws:

javax.servlet.ServletException - For servlet exceptions.

java.io.IOException - For IO exceptions.

getBodyURI

public static java.lang.String getBodyURI(javax.servlet.http.HttpServletRequest request)

Get the template body URI (the included page) for this request.

Parameters:

request - The request.

Returns:

The body URI