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Java > Open Source Codes > com > blandware > atleap > webapp > action > news > CallUpdateNewsItemAction


1 /*
2  * Copyright 2004 Blandware (http://www.blandware.com)
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 package com.blandware.atleap.webapp.action.news;
17
18 import com.blandware.atleap.common.NewsModuleConstants;
19 import com.blandware.atleap.model.news.NewsItem;
20 import com.blandware.atleap.model.core.ContentLocale;
21 import com.blandware.atleap.service.news.NewsManager;
22 import com.blandware.atleap.webapp.action.core.BaseAction;
23 import com.blandware.atleap.webapp.form.NewsItemForm;
24 import com.blandware.atleap.webapp.util.core.LocaleUtil;
25 import com.blandware.atleap.webapp.util.core.WebappConstants;
26 import com.blandware.atleap.webapp.util.core.WebappUtil;
27 import com.blandware.atleap.webapp.util.news.NewsModuleWebConstants;
28 import org.apache.commons.validator.GenericValidator;
29 import org.apache.struts.action.ActionForm;
30 import org.apache.struts.action.ActionForward;
31 import org.apache.struts.action.ActionMapping;
32 import org.apache.struts.action.ActionMessage;
33 import org.apache.struts.action.ActionMessages;
34
35 import javax.servlet.http.HttpServletRequest JavaDoc;
36 import javax.servlet.http.HttpServletResponse JavaDoc;
37 import java.util.List JavaDoc;
38 import java.util.Map JavaDoc;
39 import java.util.Iterator JavaDoc;
40
41 /**
42  * <p>Prepares form bean to update news item's data
43  * </p>
44  * <p><a HREF="CallUpdateNewsItemAction.java.htm"><i>View Source</i></a></p>
45  * <p/>
46  *
47  * @author Sergey Zubtcovskii <a HREF="mailto:sergey.zubtcovskii@blandware.com">&lt;sergey.zubtcovskii@blandware.com&gt;</a>
48  * @version $Revision: 1.20 $ $Date: 2006/03/10 17:10:31 $
49  * @struts.action path="/news/callUpdateItem"
50  * name="newsItemForm"
51  * scope="request"
52  * validate="false"
53  * roles="news-item-update, news-item-view"
54  * @struts.action-forward name="updateNewsItem"
55  * path=".news.updateItem"
56  * @struts.action-forward name="listNewsItems"
57  * path="/news/listItems.do"
58  * redirect="true"
59  */

60 public final class CallUpdateNewsItemAction extends BaseAction {
61     /**
62      * @param mapping The ActionMapping used to select this instance
63      * @param form The optional ActionForm bean for this request (if any)
64      * @param request The HTTP request we are proceeding
65      * @param response The HTTP response we are creating
66      * @return an ActionForward instance describing where and how
67      * control should be forwarded, or null if response
68      * has already been completed
69      */

70     public ActionForward execute(ActionMapping mapping, ActionForm form,
71                                  HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response) throws Exception JavaDoc {
72
73         request.getSession().removeAttribute(NewsModuleWebConstants.NEWS_ITEM_SUBMITTED_ACTION_KEY);
74
75         if ( isCancelled(request) ) {
76             return mapping.findForward("listNewsItems");
77         }
78
79         if ( !request.isUserInRole("news-item-update") ) {
80             response.sendError(HttpServletResponse.SC_FORBIDDEN);
81             return null;
82         }
83
84         NewsItemForm newsItemForm = (NewsItemForm) form;
85         Long JavaDoc newsItemId = null;
86         if ( newsItemForm.getId() != null ) {
87             newsItemId = Long.valueOf(newsItemForm.getId());
88         } else if ( request.getAttribute(NewsModuleWebConstants.NEWS_ITEM_ID_KEY) != null ) {
89             newsItemId = (Long JavaDoc) request.getAttribute(NewsModuleWebConstants.NEWS_ITEM_ID_KEY);
90         } else if ( request.getSession().getAttribute(NewsModuleWebConstants.NEWS_ITEM_ID_KEY) != null ) {
91             newsItemId = (Long JavaDoc) request.getSession().getAttribute(NewsModuleWebConstants.NEWS_ITEM_ID_KEY);
92         } else {
93             if ( log.isWarnEnabled() ) {
94                 log.warn("Missing news item ID. Returning to list...");
95             }
96             return mapping.findForward("listNewsItems");
97         }
98
99         String JavaDoc redirectUrl = request.getParameter("redirectUrl");
100         if ( GenericValidator.isBlankOrNull(redirectUrl) ) {
101             redirectUrl = (String JavaDoc) request.getAttribute(WebappConstants.REDIRECT_URL_KEY);
102         }
103         if ( !GenericValidator.isBlankOrNull(redirectUrl) ) {
104             request.getSession().setAttribute(WebappConstants.REDIRECT_URL_KEY, redirectUrl);
105         } else {
106             request.getSession().removeAttribute(WebappConstants.REDIRECT_URL_KEY);
107         }
108
109         String JavaDoc localesMode = newsItemForm.getLocalesMode();
110         if ( !"current".equalsIgnoreCase(localesMode) && !"all".equalsIgnoreCase(localesMode) ) {
111             localesMode = "selected";
112         }
113         newsItemForm.setLocalesMode(localesMode);
114
115         NewsManager newsManager = (NewsManager) getBean(NewsModuleConstants.NEWS_MANAGER_BEAN);
116         NewsItem newsItem = newsManager.retrieveNewsItem(newsItemId);
117         if ( newsItem == null ) {
118             // newsItem not found. it might be deleted by someone else
119
ActionMessages errors = new ActionMessages();
120             errors.add("newsItemNotFound", new ActionMessage("news.errors.notFound"));
121             saveErrors(request, errors);
122             return mapping.findForward("listNewsItems");
123         }
124         WebappUtil.copyProperties(newsItemForm, newsItem, request);
125         newsItemForm.setTitleMap(newsItem.getTitle());
126         newsItemForm.setAnnotationMap(newsItem.getAnnotation());
127         newsItemForm.setBodyMap(newsItem.getBody());
128
129         List JavaDoc contentLocales = LocaleUtil.getInstance(servlet.getServletContext()).getAvailableLocales();
130
131         if ("selected".equalsIgnoreCase(localesMode)) {
132             // mark all locales as checked
133
Map JavaDoc annotationCheckedBoxes = newsItemForm.getAnnotationCheckedBoxes();
134             for (Iterator JavaDoc i = contentLocales.iterator(); i.hasNext();) {
135                 ContentLocale contentLocale = (ContentLocale) i.next();
136                 annotationCheckedBoxes.put(contentLocale.getIdentifier(), Boolean.TRUE);
137             }
138
139             // check 'check all' ckeckbox
140
if ("selected".equalsIgnoreCase(localesMode)) {
141                 request.setAttribute(WebappConstants.SELECT_ALL_LOCALES_CHECKBOX_IS_CHECKED, Boolean.TRUE);
142             }
143         }
144
145         request.getSession().setAttribute(WebappConstants.CONTENT_LOCALES_COLLECTION_KEY, contentLocales);
146
147         // save transaction token in request
148
saveToken(request);
149         return mapping.findForward("updateNewsItem");
150     }
151
152 }
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