1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.ratings.action;
24  
25  import com.liferay.portal.kernel.json.JSONFactoryUtil;
26  import com.liferay.portal.kernel.json.JSONObject;
27  import com.liferay.portal.kernel.util.MathUtil;
28  import com.liferay.portal.kernel.util.ParamUtil;
29  import com.liferay.portal.struts.JSONAction;
30  import com.liferay.portlet.ratings.model.RatingsStats;
31  import com.liferay.portlet.ratings.service.RatingsEntryServiceUtil;
32  import com.liferay.portlet.ratings.service.RatingsStatsLocalServiceUtil;
33  
34  import javax.servlet.http.HttpServletRequest;
35  import javax.servlet.http.HttpServletResponse;
36  
37  import org.apache.struts.action.ActionForm;
38  import org.apache.struts.action.ActionMapping;
39  
40  /**
41   * <a href="RateEntryAction.java.html"><b><i>View Source</i></b></a>
42   *
43   * @author Brian Wing Shun Chan
44   *
45   */
46  public class RateEntryAction extends JSONAction {
47  
48      public String getJSON(
49              ActionMapping mapping, ActionForm form, HttpServletRequest request,
50              HttpServletResponse response)
51          throws Exception {
52  
53          String className = getClassName(request);
54          long classPK = getClassPK(request);
55          double score = ParamUtil.getDouble(request, "score");
56  
57          if (score == 0) {
58              RatingsEntryServiceUtil.deleteEntry(className, classPK);
59          }
60          else {
61              RatingsEntryServiceUtil.updateEntry(className, classPK, score);
62          }
63  
64          RatingsStats stats = RatingsStatsLocalServiceUtil.getStats(
65              className, classPK);
66  
67          double averageScore = MathUtil.format(stats.getAverageScore(), 1, 1);
68  
69          JSONObject jsonObj = JSONFactoryUtil.createJSONObject();
70  
71          jsonObj.put("totalEntries", stats.getTotalEntries());
72          jsonObj.put("totalScore", stats.getTotalScore());
73          jsonObj.put("averageScore", averageScore);
74  
75          return jsonObj.toString();
76      }
77  
78      protected String getClassName(HttpServletRequest request) {
79          return ParamUtil.getString(request, "className");
80      }
81  
82      protected long getClassPK(HttpServletRequest request) {
83          return ParamUtil.getLong(request, "classPK");
84      }
85  
86  }