1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 /* 19 * $Id: ProcessorTemplateElem.java 468640 2006-10-28 06:53:53Z minchau $ 20 */ 21 package org.apache.xalan.processor; 22 23 import javax.xml.transform.TransformerException; 24 25 import org.apache.xalan.res.XSLTErrorResources; 26 import org.apache.xalan.templates.ElemTemplateElement; 27 28 import org.xml.sax.Attributes; 29 30 /** 31 * This class processes parse events for an XSLT template element. 32 * @see <a href="http://www.w3.org/TR/xslt#dtd">XSLT DTD</a> 33 * @see <a href="http://www.w3.org/TR/xslt#section-Creating-the-Result-Tree">section-Creating-the-Result-Tree in XSLT Specification</a> 34 */ 35 public class ProcessorTemplateElem extends XSLTElementProcessor 36 { 37 static final long serialVersionUID = 8344994001943407235L; 38 39 /** 40 * Receive notification of the start of an element. 41 * 42 * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. 43 * @param uri The Namespace URI, or an empty string. 44 * @param localName The local name (without prefix), or empty string if not namespace processing. 45 * @param rawName The qualified name (with prefix). 46 * @param attributes The specified or defaulted attributes. 47 */ startElement( StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes)48 public void startElement( 49 StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes) 50 throws org.xml.sax.SAXException 51 { 52 53 super.startElement(handler, uri, localName, rawName, attributes); 54 try 55 { 56 // ElemTemplateElement parent = handler.getElemTemplateElement(); 57 XSLTElementDef def = getElemDef(); 58 Class classObject = def.getClassObject(); 59 ElemTemplateElement elem = null; 60 61 try 62 { 63 elem = (ElemTemplateElement) classObject.newInstance(); 64 65 elem.setDOMBackPointer(handler.getOriginatingNode()); 66 elem.setLocaterInfo(handler.getLocator()); 67 elem.setPrefixes(handler.getNamespaceSupport()); 68 } 69 catch (InstantiationException ie) 70 { 71 handler.error(XSLTErrorResources.ER_FAILED_CREATING_ELEMTMPL, null, ie);//"Failed creating ElemTemplateElement instance!", ie); 72 } 73 catch (IllegalAccessException iae) 74 { 75 handler.error(XSLTErrorResources.ER_FAILED_CREATING_ELEMTMPL, null, iae);//"Failed creating ElemTemplateElement instance!", iae); 76 } 77 78 setPropertiesFromAttributes(handler, rawName, attributes, elem); 79 appendAndPush(handler, elem); 80 } 81 catch(TransformerException te) 82 { 83 throw new org.xml.sax.SAXException(te); 84 } 85 } 86 87 /** 88 * Append the current template element to the current 89 * template element, and then push it onto the current template 90 * element stack. 91 * 92 * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. 93 * @param elem non-null reference to a the current template element. 94 * 95 * @throws org.xml.sax.SAXException Any SAX exception, possibly 96 * wrapping another exception. 97 */ appendAndPush( StylesheetHandler handler, ElemTemplateElement elem)98 protected void appendAndPush( 99 StylesheetHandler handler, ElemTemplateElement elem) 100 throws org.xml.sax.SAXException 101 { 102 103 ElemTemplateElement parent = handler.getElemTemplateElement(); 104 if(null != parent) // defensive, for better multiple error reporting. -sb 105 { 106 parent.appendChild(elem); 107 handler.pushElemTemplateElement(elem); 108 } 109 } 110 111 /** 112 * Receive notification of the end of an element. 113 * 114 * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. 115 * @param uri The Namespace URI, or an empty string. 116 * @param localName The local name (without prefix), or empty string if not namespace processing. 117 * @param rawName The qualified name (with prefix). 118 */ endElement( StylesheetHandler handler, String uri, String localName, String rawName)119 public void endElement( 120 StylesheetHandler handler, String uri, String localName, String rawName) 121 throws org.xml.sax.SAXException 122 { 123 super.endElement(handler, uri, localName, rawName); 124 handler.popElemTemplateElement().setEndLocaterInfo(handler.getLocator()); 125 } 126 } 127