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1 /* 2 * Copyright (c) 2003 Scott Howlett & Paul Libbrecht. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. The end-user documentation included with the redistribution, 18 * if any, must include the following acknowledgment: 19 * "This product includes software developed by the Xwing 20 * Project ( http://xwing.sourceforge.net/ )." 21 * Alternately, this acknowledgment may appear in the software itself, 22 * if and wherever such third-party acknowledgments normally appear. 23 * 24 * 4. The name "Xwing" must not be used to endorse or promote products 25 * derived from this software without prior written permission. For 26 * written permission, please contact the project authors via 27 * the Xwing project site, http://xwing.sourceforge.net/ . 28 * 29 * 5. Products derived from this software may not be called "Xwing", 30 * nor may "Xwing" appear in their name, without prior written 31 * permission of the Xwing project. 32 * 33 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 34 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 35 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 36 * DISCLAIMED. IN NO EVENT SHALL THE XWING AUTHORS OR THE PROJECT 37 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 38 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 39 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 40 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 41 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 42 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 43 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 44 * SUCH DAMAGE. 45 * 46 * For more information on Xwing, please see 47 * < http://xwing.sourceforge.net/ >. 48 */ 49 package net.sourceforge.xwing.jelly.tags.dom; 50 51 import java.util.Iterator; 52 import java.util.List; 53 54 import org.apache.commons.jelly.JellyTagException; 55 import org.apache.commons.jelly.MissingAttributeException; 56 import org.apache.commons.jelly.TagSupport; 57 import org.apache.commons.jelly.XMLOutput; 58 import org.jaxen.dom.DOMXPath; 59 import org.w3c.dom.Node; 60 61 public class ForEachTag extends TagSupport { 62 63 private String var; 64 private String select; 65 private Object xmlContext; 66 67 public void setVar(String var) { 68 this.var = var; 69 } 70 71 public void setSelect(String select) { 72 this.select = select; 73 } 74 75 public void setXmlContext(Object xmlContext) { 76 this.xmlContext = xmlContext; 77 } 78 79 public void doTag(XMLOutput output) 80 throws MissingAttributeException, JellyTagException { 81 82 if (xmlContext == null) { 83 throw new MissingAttributeException("xmlContext"); 84 } 85 if (select == null) { 86 throw new MissingAttributeException("select"); 87 } 88 89 try { 90 List result = new DOMXPath(select).selectNodes(xmlContext); 91 Iterator it = result.iterator(); 92 while (it.hasNext()) { 93 Node node = (Node) it.next(); 94 if (var != null) { 95 context.setVariable(var, node); 96 } 97 invokeBody(output); 98 } 99 } catch (JellyTagException exc) { 100 throw exc; 101 } catch (Exception exc) { 102 throw new JellyTagException(exc); 103 } 104 } 105 }

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