001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.web.portlet.mvc; 018 019import javax.portlet.ResourceRequest; 020import javax.portlet.ResourceResponse; 021 022import org.springframework.web.portlet.ModelAndView; 023 024/** 025 * Extension of the Portlet {@link Controller} interface that allows 026 * for handling Portlet 2.0 resource requests as well. Can also be 027 * implemented by {@link AbstractController} subclasses. 028 * 029 * @author Juergen Hoeller 030 * @since 3.0 031 * @see javax.portlet.ResourceServingPortlet 032 * @see Controller 033 * @see EventAwareController 034 */ 035public interface ResourceAwareController { 036 037 /** 038 * Process the resource request and return a ModelAndView object which the DispatcherPortlet 039 * will render. A {@code null} return value is not an error: It indicates that this 040 * object completed request processing itself, thus there is no ModelAndView to render. 041 * @param request current portlet resource request 042 * @param response current portlet resource response 043 * @return a ModelAndView to render, or null if handled directly 044 * @throws Exception in case of errors 045 */ 046 ModelAndView handleResourceRequest(ResourceRequest request, ResourceResponse response) throws Exception; 047 048}