org.jboss.web.tomcat.filters: public class: ReplyHeaderFilter

org.jboss.web.tomcat.filters
public class: ReplyHeaderFilter [javadoc | source]

java.lang.Object
   org.jboss.web.tomcat.filters.ReplyHeaderFilter

All Implemented Interfaces:
Filter

A servlet filter that simply adds all header specified in its config to replies the filter is mapped to. An example would be to set the cache control max age:

CacheControlFilter

filter.ReplyHeaderFilter

Cache-Control

max-age=3600

CacheControlFilter

/images/*

CacheControlFilter

*.js

author: Scott.Stark - @jboss.org

version: $ - Revison:$

Field Summary
static Logger	log

Method from org.jboss.web.tomcat.filters.ReplyHeaderFilter Summary:
destroy, doFilter, init

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.jboss.web.tomcat.filters.ReplyHeaderFilter Detail:
public void destroy() { }
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { // Apply the headers HttpServletResponse httpResponse = (HttpServletResponse) response; for(int n = 0; n < replyHeaders.length; n ++) { String name = replyHeaders[n][0]; String value = replyHeaders[n][1]; httpResponse.addHeader(name, value); } chain.doFilter(request, response); }
public void init(FilterConfig config) { Enumeration names = config.getInitParameterNames(); ArrayList tmp = new ArrayList(); while( names.hasMoreElements() ) { String name = (String) names.nextElement(); String value = config.getInitParameter(name); log.debug("Adding header name: "+name+"='"+value+"'"); String[] pair = {name, value}; tmp.add(pair); } replyHeaders = new String[tmp.size()][2]; tmp.toArray(replyHeaders); }

Method from org.jboss.web.tomcat.filters.ReplyHeaderFilter Detail:

 public  void destroy() {

}

 public  void doFilter(ServletRequest request,
    ServletResponse response,
    FilterChain chain) throws IOException, ServletException {
      // Apply the headers
      HttpServletResponse httpResponse = (HttpServletResponse) response;
      for(int n = 0; n <  replyHeaders.length; n ++)
      {
         String name = replyHeaders[n][0];
         String value = replyHeaders[n][1];
         httpResponse.addHeader(name, value);
      }
      chain.doFilter(request, response);
}

 public  void init(FilterConfig config) {
      Enumeration names = config.getInitParameterNames();
      ArrayList tmp = new ArrayList();
      while( names.hasMoreElements() )
      {
         String name = (String) names.nextElement();
         String value = config.getInitParameter(name);
         log.debug("Adding header name: "+name+"='"+value+"'");
         String[] pair = {name, value};
         tmp.add(pair);
      }
      replyHeaders = new String[tmp.size()][2];
      tmp.toArray(replyHeaders);
}