private Url encodeSharedResourceUrl(Url url) {
if (url != null) {
Request request = RequestCycle.get().getRequest();
StringBuilder urlBuilder = new StringBuilder();
urlBuilder.append(request.getContextPath());
urlBuilder.append(request.getFilterPath());
urlBuilder.append(PortletFilter.SHARED_RESOURCE_URL_PORTLET_WINDOW_ID_PREFIX);
urlBuilder.append(
Base64.encodeBase64URLSafeString(ThreadPortletContext.getWindowID().getBytes()));
urlBuilder.append('/');
urlBuilder.append(url.toString());
url = Url.parse(urlBuilder.toString());
}
return url;
}
