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 }