001
014
015 package com.liferay.portlet.activities.action;
016
017 import com.liferay.portal.kernel.exception.SystemException;
018 import com.liferay.portal.kernel.util.ContentTypes;
019 import com.liferay.portal.kernel.util.HtmlUtil;
020 import com.liferay.portal.kernel.util.ParamUtil;
021 import com.liferay.portal.kernel.util.StringPool;
022 import com.liferay.portal.kernel.util.Validator;
023 import com.liferay.portal.model.Group;
024 import com.liferay.portal.service.GroupLocalServiceUtil;
025 import com.liferay.portal.struts.PortletAction;
026 import com.liferay.portal.theme.ThemeDisplay;
027 import com.liferay.portal.util.Portal;
028 import com.liferay.portal.util.PortalUtil;
029 import com.liferay.portal.util.WebKeys;
030 import com.liferay.portlet.social.model.SocialActivity;
031 import com.liferay.portlet.social.model.SocialActivityFeedEntry;
032 import com.liferay.portlet.social.service.SocialActivityInterpreterLocalServiceUtil;
033 import com.liferay.portlet.social.service.SocialActivityLocalServiceUtil;
034 import com.liferay.util.RSSUtil;
035
036 import com.sun.syndication.feed.synd.SyndContent;
037 import com.sun.syndication.feed.synd.SyndContentImpl;
038 import com.sun.syndication.feed.synd.SyndEntry;
039 import com.sun.syndication.feed.synd.SyndEntryImpl;
040 import com.sun.syndication.feed.synd.SyndFeed;
041 import com.sun.syndication.feed.synd.SyndFeedImpl;
042 import com.sun.syndication.io.FeedException;
043
044 import edu.emory.mathcs.backport.java.util.Collections;
045
046 import java.io.OutputStream;
047
048 import java.util.ArrayList;
049 import java.util.Date;
050 import java.util.List;
051
052 import javax.portlet.PortletConfig;
053 import javax.portlet.PortletRequest;
054 import javax.portlet.ResourceRequest;
055 import javax.portlet.ResourceResponse;
056
057 import org.apache.struts.action.ActionForm;
058 import org.apache.struts.action.ActionMapping;
059
060
064 public class RSSAction extends PortletAction {
065
066 @Override
067 public void serveResource(
068 ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
069 ResourceRequest resourceRequest, ResourceResponse resourceResponse)
070 throws Exception {
071
072 resourceResponse.setContentType(ContentTypes.TEXT_XML_UTF8);
073
074 OutputStream outputStream = resourceResponse.getPortletOutputStream();
075
076 try {
077 byte[] bytes = getRSS(resourceRequest);
078
079 outputStream.write(bytes);
080 }
081 finally {
082 outputStream.close();
083 }
084 }
085
086 protected List<SocialActivity> getActivities(PortletRequest portletRequest)
087 throws Exception {
088
089 ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
090 WebKeys.THEME_DISPLAY);
091
092 Group group = GroupLocalServiceUtil.getGroup(
093 themeDisplay.getScopeGroupId());
094
095 int start = 0;
096 int end = 10;
097
098 if (group.isOrganization()) {
099 return SocialActivityLocalServiceUtil.getOrganizationActivities(
100 group.getOrganizationId(), start, end);
101 }
102 else if (group.isRegularSite()) {
103 return SocialActivityLocalServiceUtil.getGroupActivities(
104 group.getGroupId(), start, end);
105 }
106 else if (group.isUser()) {
107 return SocialActivityLocalServiceUtil.getUserActivities(
108 group.getClassPK(), start, end);
109 }
110
111 return Collections.emptyList();
112 }
113
114 protected byte[] getRSS(PortletRequest portletRequest) throws Exception {
115 ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
116 WebKeys.THEME_DISPLAY);
117
118 SyndFeed syndFeed = new SyndFeedImpl();
119
120 String feedTitle = ParamUtil.getString(portletRequest, "feedTitle");
121
122 syndFeed.setDescription(feedTitle);
123
124 syndFeed.setFeedType(RSSUtil.FEED_TYPE_DEFAULT);
125
126 String feedLink = PortalUtil.getLayoutFullURL(themeDisplay) +
127 Portal.FRIENDLY_URL_SEPARATOR + "activities/rss";
128
129 syndFeed.setLink(feedLink);
130
131 syndFeed.setTitle(feedTitle);
132
133 List<SyndEntry> syndEntries = new ArrayList<SyndEntry>();
134
135 syndFeed.setEntries(syndEntries);
136
137 List<SocialActivity> activities = getActivities(portletRequest);
138
139 for (SocialActivity activity : activities) {
140 SocialActivityFeedEntry activityFeedEntry =
141 SocialActivityInterpreterLocalServiceUtil.interpret(
142 activity, themeDisplay);
143
144 if (activityFeedEntry == null) {
145 continue;
146 }
147
148 SyndEntry syndEntry = new SyndEntryImpl();
149
150 SyndContent syndContent = new SyndContentImpl();
151
152 syndContent.setType(RSSUtil.FEED_TYPE_DEFAULT);
153 syndContent.setValue(activityFeedEntry.getBody());
154
155 syndEntry.setDescription(syndContent);
156
157 if (Validator.isNotNull(activityFeedEntry.getLink())) {
158 syndEntry.setLink(activityFeedEntry.getLink());
159 }
160
161 syndEntry.setPublishedDate(new Date(activity.getCreateDate()));
162 syndEntry.setTitle(
163 HtmlUtil.extractText(activityFeedEntry.getTitle()));
164
165 syndEntries.add(syndEntry);
166 }
167
168 String rss = StringPool.BLANK;
169
170 try {
171 rss = RSSUtil.export(syndFeed);
172 }
173 catch (FeedException fe) {
174 throw new SystemException(fe);
175 }
176
177 return rss.getBytes(StringPool.UTF8);
178 }
179
180 @Override
181 protected boolean isCheckMethodOnProcessAction() {
182 return _CHECK_METHOD_ON_PROCESS_ACTION;
183 }
184
185 private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
186
187 }