com.taggercat.filter
Class CacheFilter

java.lang.Object
  com.taggercat.filter.CacheFilter

All Implemented Interfaces:

javax.servlet.Filter

public class CacheFilter
extends java.lang.Object
implements javax.servlet.Filter

A filter to enable browser caching of static images, css, js files, etc.. Use of this filter is highly recommended for improving browser performance. But, be aware of the subsequent requirement to version number your resources. Install it using:

<filter> <filter-name>CacheFilter</filter-name> <filter-class>com.taggercat.filter.CacheFilter</filter-class> <init-param> <param-name>Cache-Control</param-name> <param-value>public,max-age=360000</param-value> </init-param> </filter> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.js</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.css</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.gif</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.jpg</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.png</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.tif</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping> <filter-mapping> <filter-name>CacheFilter</filter-name> <url-pattern>*.ico</url-pattern> <dispatcher>REQUEST</dispatcher> </filter-mapping>

Constructor Summary

CacheFilter()

Method Summary

void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain filterChain)
void	init(javax.servlet.FilterConfig filterConfig)

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheFilter

public CacheFilter()

Method Detail

doFilter

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

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

java.io.IOException

javax.servlet.ServletException

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter