1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   *
12   *
13   */
14  
15  package com.liferay.portlet.tags.action;
16  
17  import com.liferay.portal.kernel.dao.search.SearchContainer;
18  import com.liferay.portal.kernel.util.ContentTypes;
19  import com.liferay.portal.kernel.util.ParamUtil;
20  import com.liferay.portal.kernel.util.StringPool;
21  import com.liferay.portal.kernel.util.StringUtil;
22  import com.liferay.portal.model.Group;
23  import com.liferay.portal.service.GroupLocalServiceUtil;
24  import com.liferay.portal.theme.ThemeDisplay;
25  import com.liferay.portal.util.PortalUtil;
26  import com.liferay.portal.util.WebKeys;
27  import com.liferay.portlet.tags.service.TagsAssetServiceUtil;
28  import com.liferay.portlet.tags.service.TagsEntryLocalServiceUtil;
29  import com.liferay.util.RSSUtil;
30  import com.liferay.util.servlet.ServletResponseUtil;
31  
32  import java.util.Date;
33  
34  import javax.servlet.http.HttpServletRequest;
35  import javax.servlet.http.HttpServletResponse;
36  
37  import org.apache.struts.action.Action;
38  import org.apache.struts.action.ActionForm;
39  import org.apache.struts.action.ActionForward;
40  import org.apache.struts.action.ActionMapping;
41  
42  /**
43   * <a href="RSSAction.java.html"><b><i>View Source</i></b></a>
44   *
45   * @author Brian Wing Shun Chan
46   */
47  public class RSSAction extends Action {
48  
49      public ActionForward execute(
50              ActionMapping mapping, ActionForm form, HttpServletRequest request,
51              HttpServletResponse response)
52          throws Exception {
53  
54          try {
55              ServletResponseUtil.sendFile(
56                  request, response, null, getRSS(request),
57                  ContentTypes.TEXT_XML_UTF8);
58  
59              return null;
60          }
61          catch (Exception e) {
62              PortalUtil.sendError(e, request, response);
63  
64              return null;
65          }
66      }
67  
68      protected byte[] getRSS(HttpServletRequest request) throws Exception {
69          ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
70              WebKeys.THEME_DISPLAY);
71  
72          long companyId = ParamUtil.getLong(request, "companyId");
73          long groupId = ParamUtil.getLong(request, "groupId");
74          int max = ParamUtil.getInteger(
75              request, "max", SearchContainer.DEFAULT_DELTA);
76          String type = ParamUtil.getString(
77              request, "type", RSSUtil.DEFAULT_TYPE);
78          double version = ParamUtil.getDouble(
79              request, "version", RSSUtil.DEFAULT_VERSION);
80          String displayStyle = ParamUtil.getString(
81              request, "displayStyle", RSSUtil.DISPLAY_STYLE_FULL_CONTENT);
82  
83          String feedURL = StringPool.BLANK;
84  
85          String entryURL =
86              themeDisplay.getPortalURL() + themeDisplay.getPathMain() +
87                  "/tags/find_asset?";
88  
89          String rss = StringPool.BLANK;
90  
91          if (companyId > 0) {
92              rss = TagsAssetServiceUtil.getCompanyAssetsRSS(
93                  companyId, max, type, version, displayStyle, feedURL, entryURL);
94          }
95          else if (groupId > 0) {
96              Group group = GroupLocalServiceUtil.getGroup(groupId);
97  
98              companyId = group.getCompanyId();
99  
100             long[] classNameIds = new long[0];
101 
102             String[] allEntries = StringUtil.split(
103                 ParamUtil.getString(request, "tags"));
104 
105             long[] entryIds = TagsEntryLocalServiceUtil.getEntryIds(
106                 companyId, allEntries);
107 
108             String[] notEntries = StringUtil.split(
109                 ParamUtil.getString(request, "noTags"));
110 
111             long[] notEntryIds = TagsEntryLocalServiceUtil.getEntryIds(
112                 companyId, notEntries);
113 
114             boolean andOperator = false;
115             String orderByCol1 = null;
116             String orderByCol2 = null;
117             String orderByType1 = null;
118             String orderByType2 = null;
119             boolean excludeZeroViewCount = false;
120             Date publishDate = null;
121             Date expirationDate = null;
122 
123             rss = TagsAssetServiceUtil.getAssetsRSS(
124                 groupId, classNameIds, entryIds, notEntryIds, andOperator,
125                 orderByCol1, orderByCol2, orderByType1, orderByType2,
126                 excludeZeroViewCount, publishDate, expirationDate, max, type,
127                 version, displayStyle, feedURL, entryURL);
128         }
129 
130         return rss.getBytes(StringPool.UTF8);
131     }
132 
133 }