Create a cookie using HttpServletRequest?

Question

I've created a RenderingPlugin , for use in WebSphere Portal , which is invoked serverside before sending markup to client. The plugin loops through all cookies and if 'test' is not found, I'd like to set that cookie.

I know this is possible with a HttpServletResponse but the RenderingPlugin doesn't have access to that object. It only has a HttpServletRequest .

Is there another way to do this?

public class Request implements com.ibm.workplace.wcm.api.plugin.RenderingPlugin {

    @Override
    public boolean render(RenderingPluginModel rpm) throws RenderingPluginException {

        boolean found = false;

        HttpServletRequest servletRequest = (HttpServletRequest) rpm.getRequest();
        Cookie[] cookie = servletRequest.getCookies();

        // loop through cookies
        for (int i = 0; i < cookie.length; i++) {

            // if test found
            if (cookie[i].getName().equals("test")) {

                found = true;
            }
        }

        if (!found){

            // set cookie here
        }
    }
}

Answer 1

Did you try using javascript code to set the cookie ?

<script>
document.cookie = "test=1;path=/";
</script>

you send this as part of the content you give to the Writer rpm.getWriter() and it will be executed by the browser.

Answer 2

I had a problem to simulate a cookie, that is only sending in production, in my test environment. I solve with HttpServletRequestWrapper in a filter.

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
        Cookie cookie = new Cookie("Key", "Value");
        chain.doFilter(new CustomRequest((HttpServletRequest) request, cookie), response);
    }
}

class CustomRequest extends HttpServletRequestWrapper {
     private final Cookie cookie;

        public CustomRequest(HttpServletRequest request, Cookie cookie) {
            super(request);
            this.cookie = cookie;
        }

        @Override
        public Cookie[] getCookies() {
         //This is a example, get all cookies here and put your with a new Array
            return new Cookie[] {cookie};
        }
    }

This filter is only started in test environment. My class WebConfig take care of this:

 @HandlesTypes(WebApplicationInitializer.class)
 public class WebConfig implements WebApplicationInitializer