Class StaticAssetCacheFilter

  • All Implemented Interfaces:
    javax.servlet.Filter

    public class StaticAssetCacheFilter
    extends Object
    implements javax.servlet.Filter
    Simple servlet filter to add a 'Cache-Control' HTTP header to a response. The Cache-Control header is set to a max-age value by a configurable setting in the 'expires' init parameters - values are in days. WebScripts or other servlets that happen to match the response type configured for the filter (e.g. "*.js") should override cache settings as required.
    Author:
    Kevin Roast
    • Constructor Detail

      • StaticAssetCacheFilter

        public StaticAssetCacheFilter()
    • Method Detail

      • init

        public void init​(javax.servlet.FilterConfig config)
                  throws javax.servlet.ServletException
        Specified by:
        init in interface javax.servlet.Filter
        Throws:
        javax.servlet.ServletException
      • doFilter

        public void doFilter​(javax.servlet.ServletRequest req,
                             javax.servlet.ServletResponse res,
                             javax.servlet.FilterChain chain)
                      throws IOException,
                             javax.servlet.ServletException
        Specified by:
        doFilter in interface javax.servlet.Filter
        Throws:
        IOException
        javax.servlet.ServletException
      • destroy

        public void destroy()
        Specified by:
        destroy in interface javax.servlet.Filter