1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portal.googleapps;
16  
17  import com.liferay.portal.kernel.googleapps.GoogleAppsException;
18  import com.liferay.portal.kernel.xml.Element;
19  
20  import java.util.List;
21  
22  /**
23   * <a href="GetNextItems.java.html"><b><i>View Source</i></b></a>
24   *
25   * @author Brian Wing Shun Chan
26   */
27  public abstract class GetNextItems {
28  
29      public GetNextItems(String url, Element atomFeedElement)
30          throws GoogleAppsException {
31  
32          List<Element> atomLinkElements = atomFeedElement.elements(
33              GHelperUtil.getAtomQName("link"));
34  
35          for (Element atomLinkElement : atomLinkElements) {
36              String rel = atomLinkElement.attributeValue("rel");
37  
38              if (rel.equals("next")) {
39                  String href = atomLinkElement.attributeValue("href");
40  
41                  if (!href.equals(url)) {
42                      getNextItems(href);
43                  }
44  
45                  break;
46              }
47          }
48      }
49  
50      public abstract void getNextItems(String nextURL)
51          throws GoogleAppsException;
52  
53  }