| GetUrlTag.java |
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 public class GetUrlTag extends BodyTagSupport {
40
41 public int doEndTag() throws JspException {
42 try {
43 WebCacheItem wci = new GetUrlWebCacheItem(_url, _expires);
44
45 String content = (String)WebCachePoolUtil.get(
46 GetUrlTag.class.getName() + StringPool.PERIOD + _url, wci);
47
48 if (Validator.isNotNull(_var)) {
49 pageContext.setAttribute(_var, content);
50 }
51 else {
52 pageContext.getOut().print(content);
53 }
54
55 return EVAL_PAGE;
56 }
57 catch (Exception e) {
58 throw new JspException(e);
59 }
60 }
61
62 public void setUrl(String url) {
63 _url = url;
64 }
65
66 public void setExpires(long expires) {
67 _expires = expires;
68 }
69
70 public void setVar(String var) {
71 _var = var;
72 }
73
74 private String _url;
75 private long _expires = Time.WEEK;
76 private String _var;
77
78 }