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Java > Open Source Codes > com > blandware > atleap > webapp > action > core > mailTemplate > CallUpdateMailTemplateBodyAction


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.core.mailTemplate;
17
18 import com.blandware.atleap.common.Constants;
19 import com.blandware.atleap.common.parsers.html.HTMLPlainTextExtractor;
20 import com.blandware.atleap.common.util.ConvertUtil;
21 import com.blandware.atleap.model.core.MailTemplate;
22 import com.blandware.atleap.service.core.MailTemplateManager;
23 import com.blandware.atleap.webapp.action.core.BaseAction;
24 import com.blandware.atleap.webapp.form.MailTemplateForm;
25 import com.blandware.atleap.webapp.util.core.LocaleUtil;
26 import com.blandware.atleap.webapp.util.core.WebappConstants;
27 import com.blandware.atleap.webapp.util.core.WebappUtil;
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.io.ByteArrayInputStream JavaDoc;
38 import java.io.InputStream JavaDoc;
39 import java.io.StringWriter JavaDoc;
40 import java.util.Iterator JavaDoc;
41 import java.util.List JavaDoc;
42 import java.util.Map JavaDoc;
43
44 /**
45  * <p>Prepares form bean to update mail template body data
46  * </p>
47  * <p><a HREF="CallUpdateMailTemplateAction.java.htm"><i>View Source</i></a></p>
48  * <p/>
49  *
50  * @author Sergey Zubtcovskii <a HREF="mailto:sergey.zubtcovskii@blandware.com">&lt;sergey.zubtcovskii@blandware.com&gt;</a>
51  * @version $Revision: 1.11 $ $Date: 2006/03/10 17:10:27 $
52  * @struts.action name="mailTemplateForm"
53  * input="inputForward"
54  * path="/core/mailTemplate/callUpdateBody"
55  * scope="request"
56  * validate="false"
57  * roles="core-mailTemplate-update"
58  * @struts.action-forward name="inputForward"
59  * path=".core.mailTemplate.update"
60  * @struts.action-forward name="updateMailTemplateBody"
61  * path=".core.mailTemplate.updateBody"
62  * @struts.action-forward name="listMailTemplates"
63  * path="/core/mailTemplate/list.do"
64  * redirect="true"
65  */

66 public final class CallUpdateMailTemplateBodyAction extends BaseAction {
67     /**
68      * @param mapping The ActionMapping used to select this instance
69      * @param form The optional ActionForm bean for this request (if any)
70      * @param request The HTTP request we are proceeding
71      * @param response The HTTP response we are creating
72      * @return an ActionForward instance describing where and how
73      * control should be forwarded, or null if response
74      * has already been completed
75      */

76     public ActionForward execute(ActionMapping mapping, ActionForm form,
77                                  HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response) throws Exception JavaDoc {
78
79         if ( isCancelled(request) ) {
80             return mapping.findForward("listMailTemplates");
81         }
82
83         MailTemplateForm mailTemplateForm = (MailTemplateForm) form;
84         Long JavaDoc mailTemplateId = null;
85         if ( !GenericValidator.isBlankOrNull(mailTemplateForm.getId()) ) {
86             mailTemplateId = Long.valueOf(mailTemplateForm.getId());
87         } else if ( request.getSession().getAttribute(WebappConstants.MAIL_TEMPLATE_ID_KEY) != null ) {
88             mailTemplateId = (Long JavaDoc) request.getSession().getAttribute(WebappConstants.MAIL_TEMPLATE_ID_KEY);
89         } else {
90             if ( log.isWarnEnabled() ) {
91                 log.warn("Missing mail template ID. Returning to list...");
92             }
93             return mapping.findForward("listMailTemplates");
94         }
95
96         MailTemplateManager mailTemplateManager = (MailTemplateManager) getBean(Constants.MAIL_TEMPLATE_MANAGER_BEAN);
97         MailTemplate mailTemplate = mailTemplateManager.retrieveMailTemplate(mailTemplateId);
98
99         if ( mailTemplate == null ) {
100             // mail template not found. it might be deleted by someone else
101
ActionMessages errors = new ActionMessages();
102             errors.add("mailTemplateNotFound", new ActionMessage("core.mailTemplate.errors.notFound"));
103             saveErrors(request, errors);
104             return mapping.findForward("listMailTemplates");
105         }
106
107         // check charset
108
for ( Iterator JavaDoc i = mailTemplateForm.getCharsetMap().entrySet().iterator(); i.hasNext(); ) {
109             Map.Entry JavaDoc entry = (Map.Entry JavaDoc) i.next();
110             String JavaDoc localeIdentifier = (String JavaDoc) entry.getKey();
111             String JavaDoc charset = (String JavaDoc) entry.getValue();
112             if ( GenericValidator.isBlankOrNull(charset) ) {
113                 mailTemplateForm.setCharset(localeIdentifier, Constants.DEFAULT_ENCODING);
114             } else if ( !WebappUtil.isCharsetSupported(charset) ) {
115                 ActionMessages errors = new ActionMessages();
116                 errors.add("notSupportedCharset", new ActionMessage("core.commons.errors.notSupportedCharset", charset));
117                 saveErrors(request, errors);
118                 saveToken(request);
119                 return mapping.getInputForward();
120             }
121         }
122
123         // remove HTML markup, if this template was changed from html to plain text
124
if ( !mailTemplate.isPlain() && Constants.MIME_TYPE_PLAIN.equalsIgnoreCase(mailTemplateForm.getMimeType()) ) {
125             HTMLPlainTextExtractor extractor = new HTMLPlainTextExtractor();
126             for ( Iterator JavaDoc i = mailTemplateForm.getBodyMap().entrySet().iterator(); i.hasNext(); ) {
127                 Map.Entry JavaDoc entry = (Map.Entry JavaDoc) i.next();
128                 String JavaDoc language = (String JavaDoc) entry.getKey();
129                 String JavaDoc body = (String JavaDoc) entry.getValue();
130                 InputStream JavaDoc bodyIS = new ByteArrayInputStream JavaDoc(ConvertUtil.convertToByteArray(body));
131                 StringWriter JavaDoc sw = new StringWriter JavaDoc();
132                 extractor.extract(bodyIS, sw, Constants.DEFAULT_ENCODING);
133                 mailTemplateForm.setBody(language, sw.toString().trim());
134             }
135         }
136         // export available variables to session
137

138         if ( mailTemplate.getAvailableVariables() != null && !mailTemplate.getAvailableVariables().isEmpty() ) {
139             request.getSession().setAttribute(WebappConstants.MAIL_TEMPLATE_AVAIALABLE_VARIABLES_KEY, ConvertUtil.convertListToString(mailTemplate.getAvailableVariables(), ", "));
140         } else {
141             request.getSession().removeAttribute(WebappConstants.MAIL_TEMPLATE_AVAIALABLE_VARIABLES_KEY);
142         }
143
144         List JavaDoc contentLocales = LocaleUtil.getInstance(servlet.getServletContext()).getAvailableLocales();
145
146         request.getSession().setAttribute(WebappConstants.CONTENT_LOCALES_COLLECTION_KEY, contentLocales);
147
148         return mapping.findForward("updateMailTemplateBody");
149     }
150
151 }
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