| 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 */
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 }