1 /*
2 * Copyright 2002-2007 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.springframework.web.servlet.mvc;
18
19 import javax.servlet.http.HttpServletRequest;
20 import javax.servlet.http.HttpServletResponse;
21
22 import org.springframework.web.servlet.HandlerAdapter;
23 import org.springframework.web.servlet.ModelAndView;
24
25 /**
26 * Adapter to use the plain {@link Controller} workflow interface with
27 * the generic {@link org.springframework.web.servlet.DispatcherServlet}.
28 * Supports handlers that implement the {@link LastModified} interface.
29 *
30 * <p>This is an SPI class, not used directly by application code.
31 *
32 * @author Rod Johnson
33 * @author Juergen Hoeller
34 * @see org.springframework.web.servlet.DispatcherServlet
35 * @see Controller
36 * @see LastModified
37 * @see HttpRequestHandlerAdapter
38 */
39 public class SimpleControllerHandlerAdapter implements HandlerAdapter {
40
41 public boolean supports(Object handler) {
42 return (handler instanceof Controller);
43 }
44
45 public ModelAndView handle(HttpServletRequest request, HttpServletResponse response, Object handler)
46 throws Exception {
47
48 return ((Controller) handler).handleRequest(request, response);
49 }
50
51 public long getLastModified(HttpServletRequest request, Object handler) {
52 if (handler instanceof LastModified) {
53 return ((LastModified) handler).getLastModified(request);
54 }
55 return -1L;
56 }
57
58 }
Save This Page