1   /**
2    * Copyright (c) 2000-2009 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   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portlet.tags.action;
21  
22  import com.liferay.portal.kernel.dao.search.SearchContainer;
23  import com.liferay.portal.kernel.util.ContentTypes;
24  import com.liferay.portal.kernel.util.ParamUtil;
25  import com.liferay.portal.kernel.util.StringPool;
26  import com.liferay.portal.kernel.util.StringUtil;
27  import com.liferay.portal.model.Group;
28  import com.liferay.portal.service.GroupLocalServiceUtil;
29  import com.liferay.portal.theme.ThemeDisplay;
30  import com.liferay.portal.util.PortalUtil;
31  import com.liferay.portal.util.WebKeys;
32  import com.liferay.portlet.tags.service.TagsAssetServiceUtil;
33  import com.liferay.portlet.tags.service.TagsEntryLocalServiceUtil;
34  import com.liferay.util.RSSUtil;
35  import com.liferay.util.servlet.ServletResponseUtil;
36  
37  import java.util.Date;
38  
39  import javax.servlet.http.HttpServletRequest;
40  import javax.servlet.http.HttpServletResponse;
41  
42  import org.apache.struts.action.Action;
43  import org.apache.struts.action.ActionForm;
44  import org.apache.struts.action.ActionForward;
45  import org.apache.struts.action.ActionMapping;
46  
47  /**
48   * <a href="RSSAction.java.html"><b><i>View Source</i></b></a>
49   *
50   * @author Brian Wing Shun Chan
51   *
52   */
53  public class RSSAction extends Action {
54  
55      public ActionForward execute(
56              ActionMapping mapping, ActionForm form, HttpServletRequest request,
57              HttpServletResponse response)
58          throws Exception {
59  
60          try {
61              ServletResponseUtil.sendFile(
62                  response, null, getRSS(request), ContentTypes.TEXT_XML_UTF8);
63  
64              return null;
65          }
66          catch (Exception e) {
67              PortalUtil.sendError(e, request, response);
68  
69              return null;
70          }
71      }
72  
73      protected byte[] getRSS(HttpServletRequest request) throws Exception {
74          ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
75              WebKeys.THEME_DISPLAY);
76  
77          long companyId = ParamUtil.getLong(request, "companyId");
78          long groupId = ParamUtil.getLong(request, "groupId");
79          int max = ParamUtil.getInteger(
80              request, "max", SearchContainer.DEFAULT_DELTA);
81          String type = ParamUtil.getString(
82              request, "type", RSSUtil.DEFAULT_TYPE);
83          double version = ParamUtil.getDouble(
84              request, "version", RSSUtil.DEFAULT_VERSION);
85          String displayStyle = ParamUtil.getString(
86              request, "displayStyle", RSSUtil.DISPLAY_STYLE_FULL_CONTENT);
87  
88          String feedURL = StringPool.BLANK;
89  
90          String entryURL =
91              themeDisplay.getURLPortal() + themeDisplay.getPathMain() +
92                  "/tags/find_asset?";
93  
94          String rss = StringPool.BLANK;
95  
96          if (companyId > 0) {
97              rss = TagsAssetServiceUtil.getCompanyAssetsRSS(
98                  companyId, max, type, version, displayStyle, feedURL, entryURL);
99          }
100         else if (groupId > 0) {
101             Group group = GroupLocalServiceUtil.getGroup(groupId);
102 
103             companyId = group.getCompanyId();
104 
105             long[] classNameIds = new long[0];
106 
107             String[] allEntries = StringUtil.split(
108                 ParamUtil.getString(request, "tags"));
109 
110             long[] entryIds = TagsEntryLocalServiceUtil.getEntryIds(
111                 companyId, allEntries);
112 
113             String[] notEntries = StringUtil.split(
114                 ParamUtil.getString(request, "noTags"));
115 
116             long[] notEntryIds = TagsEntryLocalServiceUtil.getEntryIds(
117                 companyId, notEntries);
118 
119             boolean andOperator = false;
120             String orderByCol1 = null;
121             String orderByCol2 = null;
122             String orderByType1 = null;
123             String orderByType2 = null;
124             boolean excludeZeroViewCount = false;
125             Date publishDate = null;
126             Date expirationDate = null;
127 
128             rss = TagsAssetServiceUtil.getAssetsRSS(
129                 groupId, classNameIds, entryIds, notEntryIds, andOperator,
130                 orderByCol1, orderByCol2, orderByType1, orderByType2,
131                 excludeZeroViewCount, publishDate, expirationDate, max, type,
132                 version, displayStyle, feedURL, entryURL);
133         }
134 
135         return rss.getBytes(StringPool.UTF8);
136     }
137 
138 }