01: /**********************************************************************************
02: * $URL: https://source.sakaiproject.org/svn/metaobj/tags/sakai_2-4-1/metaobj-util/tool-lib/src/java/org/sakaiproject/metaobj/utils/mvc/impl/servlet/AbstractFormController.java $
03: * $Id: AbstractFormController.java 14230 2006-09-05 18:02:51Z chmaurer@iupui.edu $
04: ***********************************************************************************
05: *
06: * Copyright (c) 2004, 2005, 2006 The Sakai Foundation.
07: *
08: * Licensed under the Educational Community License, Version 1.0 (the "License");
09: * you may not use this file except in compliance with the License.
10: * You may obtain a copy of the License at
11: *
12: * http://www.opensource.org/licenses/ecl1.php
13: *
14: * Unless required by applicable law or agreed to in writing, software
15: * distributed under the License is distributed on an "AS IS" BASIS,
16: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: * See the License for the specific language governing permissions and
18: * limitations under the License.
19: *
20: **********************************************************************************/package org.sakaiproject.metaobj.utils.mvc.impl.servlet;
21:
22: import java.util.HashMap;
23: import java.util.Map;
24:
25: import javax.servlet.ServletException;
26:
27: import org.sakaiproject.metaobj.utils.mvc.intf.CancelableController;
28: import org.sakaiproject.metaobj.utils.mvc.intf.FormController;
29: import org.springframework.validation.Errors;
30: import org.springframework.web.servlet.ModelAndView;
31:
32: /**
33: * Created by IntelliJ IDEA.
34: * User: jbush
35: * Date: Dec 15, 2004
36: * Time: 9:52:19 PM
37: * To change this template use File | Settings | File Templates.
38: */
39: public abstract class AbstractFormController implements
40: CancelableController, FormController {
41: public static final String PARAM_CANCEL = "_cancel";
42:
43: /**
44: * Return if cancel action is specified in the request.
45: * <p>Default implementation looks for "_cancel" parameter in the request.
46: *
47: * @param request current HTTP request
48: * @see #PARAM_CANCEL
49: */
50: public boolean isCancel(Map request) {
51: return request.containsKey(PARAM_CANCEL);
52: }
53:
54: public ModelAndView processCancel(Map request, Map session,
55: Map application, Object command, Errors errors)
56: throws Exception {
57: throw new ServletException("Wizard form controller class ["
58: + getClass().getName()
59: + "] does not support a cancel operation");
60: }
61:
62: public Map referenceData(Map request, Object command, Errors errors) {
63: return new HashMap();
64: }
65: }
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