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.taglib.util;
24  
25  import com.liferay.portal.kernel.util.StringPool;
26  import com.liferay.portal.kernel.util.Time;
27  import com.liferay.portal.kernel.util.Validator;
28  import com.liferay.portal.kernel.webcache.WebCacheItem;
29  import com.liferay.portal.kernel.webcache.WebCachePoolUtil;
30  
31  import javax.servlet.jsp.JspException;
32  import javax.servlet.jsp.tagext.BodyTagSupport;
33  
34  /**
35   * <a href="GetUrlTag.java.html"><b><i>View Source</i></b></a>
36   *
37   * @author Brian Wing Shun Chan
38   *
39   */
40  public class GetUrlTag extends BodyTagSupport {
41  
42      public int doEndTag() throws JspException {
43          try {
44              WebCacheItem wci = new GetUrlWebCacheItem(_url, _expires);
45  
46              String content = (String)WebCachePoolUtil.get(
47                  GetUrlTag.class.getName() + StringPool.PERIOD + _url, wci);
48  
49              if (Validator.isNotNull(_var)) {
50                  pageContext.setAttribute(_var, content);
51              }
52              else {
53                  pageContext.getOut().print(content);
54              }
55  
56              return EVAL_PAGE;
57          }
58          catch (Exception e) {
59              throw new JspException(e);
60          }
61      }
62  
63      public void setUrl(String url) {
64          _url = url;
65      }
66  
67      public void setExpires(long expires) {
68          _expires = expires;
69      }
70  
71      public void setVar(String var) {
72          _var = var;
73      }
74  
75      private String _url;
76      private long _expires = Time.WEEK;
77      private String _var;
78  
79  }