1   /**
2    * Copyright (c) 2000-2008 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.journal.util;
24  
25  import com.liferay.portal.kernel.util.StringMaker;
26  import com.liferay.portal.kernel.util.StringPool;
27  import com.liferay.portal.kernel.util.StringUtil;
28  
29  import java.util.Map;
30  
31  import org.apache.commons.logging.Log;
32  import org.apache.commons.logging.LogFactory;
33  
34  /**
35   * <a href="ViewCounterTransformerListener.java.html"><b><i>View Source</i></b>
36   * </a>
37   *
38   * @author Raymond Aug�
39   *
40   */
41  public class ViewCounterTransformerListener extends TransformerListener {
42  
43      public String onXml(String s) {
44          if (_log.isDebugEnabled()) {
45              _log.debug("onXml");
46          }
47  
48          return s;
49      }
50  
51      public String onScript(String s) {
52          if (_log.isDebugEnabled()) {
53              _log.debug("onScript");
54          }
55  
56          return s;
57      }
58  
59      public String onOutput(String s) {
60          if (_log.isDebugEnabled()) {
61              _log.debug("onOutput");
62          }
63  
64          return replaceViewCounterToken(s);
65      }
66  
67      /**
68       * Replace the counter token with the increment call.
69       *
70       * @param       s the given string
71       * @return      the processed string
72       */
73      protected String replaceViewCounterToken(String s) {
74          Map<String, String> tokens = getTokens();
75  
76          String articleResourcePK = tokens.get("article_resource_pk");
77  
78          String counterToken = StringPool.AT + "view_counter" + StringPool.AT;
79  
80          StringMaker sm = new StringMaker();
81  
82          sm.append("<script type=\"text/javascript\">");
83          sm.append("Liferay.Service.Tags.TagsAsset.incrementViewCounter");
84          sm.append("({className:'");
85          sm.append("com.liferay.portlet.journal.model.JournalArticle', ");
86          sm.append("classPK:");
87          sm.append(articleResourcePK);
88          sm.append("});");
89          sm.append("</script>");
90  
91          s = StringUtil.replace(s, counterToken, sm.toString());
92  
93          return s;
94      }
95  
96      private static Log _log =
97          LogFactory.getLog(ViewCounterTransformerListener.class);
98  
99  }