001
014
015 package com.liferay.portlet.journal.action;
016
017 import com.liferay.portal.kernel.diff.CompareVersionsException;
018 import com.liferay.portal.kernel.portlet.PortletRequestModel;
019 import com.liferay.portal.kernel.servlet.SessionErrors;
020 import com.liferay.portal.kernel.util.GetterUtil;
021 import com.liferay.portal.kernel.util.LocaleUtil;
022 import com.liferay.portal.kernel.util.ParamUtil;
023 import com.liferay.portal.struts.PortletAction;
024 import com.liferay.portal.theme.ThemeDisplay;
025 import com.liferay.portal.util.WebKeys;
026 import com.liferay.portlet.journal.NoSuchArticleException;
027 import com.liferay.portlet.journal.model.JournalArticle;
028 import com.liferay.portlet.journal.service.JournalArticleLocalServiceUtil;
029 import com.liferay.portlet.journal.service.JournalArticleServiceUtil;
030 import com.liferay.portlet.journal.util.JournalUtil;
031 import com.liferay.portlet.journal.util.comparator.ArticleVersionComparator;
032
033 import java.util.HashSet;
034 import java.util.List;
035 import java.util.Locale;
036 import java.util.Set;
037
038 import javax.portlet.PortletConfig;
039 import javax.portlet.PortletContext;
040 import javax.portlet.PortletRequestDispatcher;
041 import javax.portlet.RenderRequest;
042 import javax.portlet.RenderResponse;
043 import javax.portlet.ResourceRequest;
044 import javax.portlet.ResourceResponse;
045
046 import org.apache.struts.action.ActionForm;
047 import org.apache.struts.action.ActionForward;
048 import org.apache.struts.action.ActionMapping;
049
050
053 public class CompareVersionsAction extends PortletAction {
054
055 @Override
056 public ActionForward render(
057 ActionMapping actionMapping, ActionForm actionForm,
058 PortletConfig portletConfig, RenderRequest renderRequest,
059 RenderResponse renderResponse)
060 throws Exception {
061
062 try {
063 ActionUtil.getArticle(renderRequest);
064
065 compareVersions(renderRequest, renderResponse);
066 }
067 catch (Exception e) {
068 if (e instanceof NoSuchArticleException) {
069 SessionErrors.add(renderRequest, e.getClass());
070
071 return actionMapping.findForward("portlet.journal.error");
072 }
073 else {
074 throw e;
075 }
076 }
077
078 return actionMapping.findForward("portlet.journal.compare_versions");
079 }
080
081 @Override
082 public void serveResource(
083 ActionMapping actionMapping, ActionForm actionForm,
084 PortletConfig portletConfig, ResourceRequest resourceRequest,
085 ResourceResponse resourceResponse)
086 throws Exception {
087
088 ThemeDisplay themeDisplay = (ThemeDisplay)resourceRequest.getAttribute(
089 WebKeys.THEME_DISPLAY);
090
091 long groupId = ParamUtil.getLong(resourceRequest, "groupId");
092 String articleId = ParamUtil.getString(resourceRequest, "articleId");
093 double sourceVersion = ParamUtil.getDouble(
094 resourceRequest, "filterSourceVersion");
095 double targetVersion = ParamUtil.getDouble(
096 resourceRequest, "filterTargetVersion");
097 String languageId = ParamUtil.getString(resourceRequest, "languageId");
098
099 String diffHtmlResults = null;
100
101 try {
102 diffHtmlResults = JournalUtil.diffHtml(
103 groupId, articleId, sourceVersion, targetVersion, languageId,
104 new PortletRequestModel(resourceRequest, resourceResponse),
105 themeDisplay);
106 }
107 catch (CompareVersionsException cve) {
108 resourceRequest.setAttribute(
109 WebKeys.DIFF_VERSION, cve.getVersion());
110 }
111
112 resourceRequest.setAttribute(
113 WebKeys.DIFF_HTML_RESULTS, diffHtmlResults);
114
115 PortletContext portletContext = portletConfig.getPortletContext();
116
117 PortletRequestDispatcher portletRequestDispatcher =
118 portletContext.getRequestDispatcher(
119 "/html/taglib/ui/diff_version_comparator/diff_html.jsp");
120
121 portletRequestDispatcher.include(resourceRequest, resourceResponse);
122 }
123
124 protected void compareVersions(
125 RenderRequest renderRequest, RenderResponse renderResponse)
126 throws Exception {
127
128 ThemeDisplay themeDisplay = (ThemeDisplay)renderRequest.getAttribute(
129 WebKeys.THEME_DISPLAY);
130
131 long groupId = ParamUtil.getLong(renderRequest, "groupId");
132 String articleId = ParamUtil.getString(renderRequest, "articleId");
133
134 String sourceArticleId = ParamUtil.getString(
135 renderRequest, "sourceVersion");
136
137 int index = sourceArticleId.lastIndexOf(
138 EditArticleAction.VERSION_SEPARATOR);
139
140 if (index != -1) {
141 sourceArticleId =
142 sourceArticleId.substring(
143 index + EditArticleAction.VERSION_SEPARATOR.length(),
144 sourceArticleId.length());
145 }
146
147 double sourceVersion = GetterUtil.getDouble(sourceArticleId);
148
149 String targetArticleId = ParamUtil.getString(
150 renderRequest, "targetVersion");
151
152 index = targetArticleId.lastIndexOf(
153 EditArticleAction.VERSION_SEPARATOR);
154
155 if (index != -1) {
156 targetArticleId =
157 targetArticleId.substring(
158 index + EditArticleAction.VERSION_SEPARATOR.length(),
159 targetArticleId.length());
160 }
161
162 double targetVersion = GetterUtil.getDouble(targetArticleId);
163
164 if ((sourceVersion == 0) && (targetVersion == 0)) {
165 List<JournalArticle> sourceArticles =
166 JournalArticleServiceUtil.getArticlesByArticleId(
167 groupId, articleId, 0, 1,
168 new ArticleVersionComparator(false));
169
170 JournalArticle sourceArticle = sourceArticles.get(0);
171
172 sourceVersion = sourceArticle.getVersion();
173
174 List<JournalArticle> targetArticles =
175 JournalArticleServiceUtil.getArticlesByArticleId(
176 groupId, articleId, 0, 1,
177 new ArticleVersionComparator(true));
178
179 JournalArticle targetArticle = targetArticles.get(0);
180
181 targetVersion = targetArticle.getVersion();
182 }
183
184 if (sourceVersion > targetVersion) {
185 double tempVersion = targetVersion;
186
187 targetVersion = sourceVersion;
188 sourceVersion = tempVersion;
189 }
190
191 String languageId = getLanguageId(
192 renderRequest, groupId, articleId, sourceVersion, targetVersion);
193
194 String diffHtmlResults = null;
195
196 try {
197 diffHtmlResults = JournalUtil.diffHtml(
198 groupId, articleId, sourceVersion, targetVersion, languageId,
199 new PortletRequestModel(renderRequest, renderResponse),
200 themeDisplay);
201 }
202 catch (CompareVersionsException cve) {
203 renderRequest.setAttribute(WebKeys.DIFF_VERSION, cve.getVersion());
204 }
205
206 renderRequest.setAttribute(WebKeys.DIFF_HTML_RESULTS, diffHtmlResults);
207 renderRequest.setAttribute(WebKeys.SOURCE_VERSION, sourceVersion);
208 renderRequest.setAttribute(WebKeys.TARGET_VERSION, targetVersion);
209 }
210
211 protected String getLanguageId(
212 RenderRequest renderRequest, long groupId, String articleId,
213 double sourceVersion, double targetVersion)
214 throws Exception {
215
216 JournalArticle sourceArticle =
217 JournalArticleLocalServiceUtil.fetchArticle(
218 groupId, articleId, sourceVersion);
219
220 JournalArticle targetArticle =
221 JournalArticleLocalServiceUtil.fetchArticle(
222 groupId, articleId, targetVersion);
223
224 Set<Locale> locales = new HashSet<Locale>();
225
226 for (String locale : sourceArticle.getAvailableLanguageIds()) {
227 locales.add(LocaleUtil.fromLanguageId(locale));
228 }
229
230 for (String locale : targetArticle.getAvailableLanguageIds()) {
231 locales.add(LocaleUtil.fromLanguageId(locale));
232 }
233
234 String languageId = ParamUtil.get(
235 renderRequest, "languageId", targetArticle.getDefaultLanguageId());
236
237 Locale locale = LocaleUtil.fromLanguageId(languageId);
238
239 if (!locales.contains(locale)) {
240 languageId = targetArticle.getDefaultLanguageId();
241 }
242
243 renderRequest.setAttribute(WebKeys.AVAILABLE_LOCALES, locales);
244 renderRequest.setAttribute(WebKeys.LANGUAGE_ID, languageId);
245
246 return languageId;
247 }
248
249 }