public final class SessionControlFilter
implements Filter
{
private String attribute =
null;
private FilterConfig filterConfig = null;
public void
init(FilterConfig filterConfig) throws ServletException
{
this.filterConfig =
filterConfig;
this.attribute =
filterConfig.getInitParameter("attribute");
sessionController = SessionController.getInstance();
}
public void doFilter(ServletRequest request, ServletResponse
response, FilterChain chain)
throws
IOException, ServletException
{
if (attribute != null)
request.setAttribute(attribute, this);
if(getCookie((HttpServletRequest)request, "CHOCLATE_CHIP") ==
null)
{
makeCookie((HttpServletResponse)response, "CHOCLATE_CHIP", "CLIENT",
"666");
}
chain.doFilter(request,
response);
}
public static Cookie
getCookie(HttpServletRequest request, String name)
{
Cookie[] cookies =
request.getCookies();
Cookie myCookie =
null;
for (int
i=0;i<cookies.length ;i++ )
{
if
(cookies[i].getName().equals(name))
{
myCookie =
cookies[i];
break;
}
}
return
myCookie;
}
public void
makeCookie(HttpServletResponse response, String name, String channel, String
visitorId)
{
String value = channel + "|" +
visitorId;
Cookie newCookie = new
Cookie(name, value);
newCookie.setPath("/");
newCookie.setComment("No comment.");
newCookie.setMaxAge(315360000);
newCookie.setVersion(1);
response.addCookie(newCookie);
}
public void
destroy()
{
this.attribute = null;
this.filterConfig = null;
}
}
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