/**
* @param request HTTP request
* @param response HTTP response
* @return rendered HTML output
*/
public String renderPage(HttpRequest request, HttpResponse response) {
RequestLookup requestLookup = createRequestLookup(request, response);
API api = new API(sessionRegistry, requestLookup);
// If exists, render Theme.
Theme renderingTheme = getRenderingTheme(api);
if (renderingTheme != null) {
renderingTheme.render(requestLookup);
}
try {
return renderPage(request.getUriWithoutContextPath(), null, requestLookup, api);
} catch (SessionNotFoundException e) {
String loginPageUri = configuration.getLoginPageUri();
if (loginPageUri == null) {
throw (HttpErrorException) e;
} else {
throw new PageRedirectException(loginPageUri);
}
}
}
public Optional<String> renderErrorPage(
HttpErrorException ex, HttpRequest request, HttpResponse response) {
Map<String, String> errorPages = configuration.getErrorPages();
String errorPageUri =
errorPages.getOrDefault(String.valueOf(ex.getHttpStatusCode()), errorPages.get("default"));
if (errorPageUri == null) {
return Optional.<String>empty();
}
RequestLookup requestLookup = createRequestLookup(request, response);
API api = new API(sessionRegistry, requestLookup);
// If exists, render Theme.
Theme renderingTheme = getRenderingTheme(api);
if (renderingTheme != null) {
renderingTheme.render(requestLookup);
}
// Create Model with HTTP status code and error message.
Map<String, Object> modelMap = new HashMap<>(2);
modelMap.put("status", ex.getHttpStatusCode());
modelMap.put("message", ex.getMessage());
return Optional.of(renderPage(errorPageUri, new MapModel(modelMap), requestLookup, api));
}
private RequestLookup createRequestLookup(HttpRequest request, HttpResponse response) {
String clientContextPath = configuration.getContextPath();
return new RequestLookup(
(clientContextPath == null ? contextPath : clientContextPath), request, response);
}