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1   /**
2    * This file Copyright (c) 2013 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.module.admininterface.commands;
35  
36  import info.magnolia.cms.core.MetaData;
37  import info.magnolia.context.Context;
38  
39  import java.util.regex.Matcher;
40  import java.util.regex.Pattern;
41  
42  import javax.jcr.Node;
43  
44  import org.apache.commons.lang.StringUtils;
45  
46  /**
47   * Extracts comment from the resource and put it in the context. Regular java regex pattern is used
48   * for extraction. Using commentTemplate it is possible to format extracted comment info further.
49   */
50  public class ExtractCommentCommand extends BaseRepositoryCommand {
51  
52      private String pattern;
53  
54      private String commentTemplate;
55  
56      @Override
57      public boolean execute(Context context) throws Exception {
58          Node node = getJCRNode(context);
59          if (node == null) {
60              return false;
61          }
62          MetaData metaData = new MetaData(node);
63          if (metaData.getCreationDate() == null || metaData.getCreationDate().equals(metaData.getModificationDate())) {
64              return false;
65          }
66          if(node.hasProperty("text")){
67              String text = node.getProperty("text").getString();
68  
69              Pattern pattern = Pattern.compile(getPattern());
70              Matcher matcher = pattern.matcher(text);
71              if (StringUtils.isBlank(commentTemplate)) {
72                  if (matcher.find())
73                  {
74                      context.put("comment", matcher.group(1));
75                  }
76              } else {
77                  if (matcher.find()) {
78                      for (int idx = 1; idx <= matcher.groupCount(); idx++) {
79                          commentTemplate = commentTemplate.replaceAll("\\(" + idx + "\\)", matcher.group(idx));
80                      }
81                  }
82                  context.put("comment", commentTemplate);
83              }
84          }
85          return true;
86      }
87  
88      private String getPattern() {
89          return pattern;
90      }
91  
92      public void setPattern(String pattern) {
93          this.pattern = pattern;
94      }
95  
96      public String getCommentTemplate() {
97          return commentTemplate;
98      }
99  
100     public void setCommentTemplate(String commentTemplate) {
101         this.commentTemplate = commentTemplate;
102     }
103 }