001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 /*
019 * $Id: ProcessorStylesheetElement.java 468640 2006-10-28 06:53:53Z minchau $
020 */
021 package org.apache.xalan.processor;
022
023 import javax.xml.transform.TransformerConfigurationException;
024 import javax.xml.transform.TransformerException;
025
026 import org.apache.xalan.templates.Stylesheet;
027 import org.apache.xalan.templates.StylesheetComposed;
028 import org.apache.xalan.templates.StylesheetRoot;
029
030 import org.xml.sax.Attributes;
031
032 /**
033 * TransformerFactory for xsl:stylesheet or xsl:transform markup.
034 * @see <a href="http://www.w3.org/TR/xslt#dtd">XSLT DTD</a>
035 * @see <a href="http://www.w3.org/TR/xslt#stylesheet-element">stylesheet-element in XSLT Specification</a>
036 *
037 * @xsl.usage internal
038 */
039 public class ProcessorStylesheetElement extends XSLTElementProcessor
040 {
041 static final long serialVersionUID = -877798927447840792L;
042
043 /**
044 * Receive notification of the start of an strip-space element.
045 *
046 * @param handler The calling StylesheetHandler/TemplatesBuilder.
047 * @param uri The Namespace URI, or the empty string if the
048 * element has no Namespace URI or if Namespace
049 * processing is not being performed.
050 * @param localName The local name (without prefix), or the
051 * empty string if Namespace processing is not being
052 * performed.
053 * @param rawName The raw XML 1.0 name (with prefix), or the
054 * empty string if raw names are not available.
055 * @param attributes The attributes attached to the element. If
056 * there are no attributes, it shall be an empty
057 * Attributes object.
058 */
059 public void startElement(
060 StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes)
061 throws org.xml.sax.SAXException
062 {
063
064 super.startElement(handler, uri, localName, rawName, attributes);
065 try
066 {
067 int stylesheetType = handler.getStylesheetType();
068 Stylesheet stylesheet;
069
070 if (stylesheetType == StylesheetHandler.STYPE_ROOT)
071 {
072 try
073 {
074 stylesheet = getStylesheetRoot(handler);
075 }
076 catch(TransformerConfigurationException tfe)
077 {
078 throw new TransformerException(tfe);
079 }
080 }
081 else
082 {
083 Stylesheet parent = handler.getStylesheet();
084
085 if (stylesheetType == StylesheetHandler.STYPE_IMPORT)
086 {
087 StylesheetComposed sc = new StylesheetComposed(parent);
088
089 parent.setImport(sc);
090
091 stylesheet = sc;
092 }
093 else
094 {
095 stylesheet = new Stylesheet(parent);
096
097 parent.setInclude(stylesheet);
098 }
099 }
100
101 stylesheet.setDOMBackPointer(handler.getOriginatingNode());
102 stylesheet.setLocaterInfo(handler.getLocator());
103
104 stylesheet.setPrefixes(handler.getNamespaceSupport());
105 handler.pushStylesheet(stylesheet);
106 setPropertiesFromAttributes(handler, rawName, attributes,
107 handler.getStylesheet());
108 handler.pushElemTemplateElement(handler.getStylesheet());
109 }
110 catch(TransformerException te)
111 {
112 throw new org.xml.sax.SAXException(te);
113 }
114 }
115
116 /**
117 * This method can be over-ridden by a class that extends this one.
118 * @param handler The calling StylesheetHandler/TemplatesBuilder.
119 */
120 protected Stylesheet getStylesheetRoot(StylesheetHandler handler) throws TransformerConfigurationException
121 {
122 StylesheetRoot stylesheet;
123 stylesheet = new StylesheetRoot(handler.getSchema(), handler.getStylesheetProcessor().getErrorListener());
124
125 if (handler.getStylesheetProcessor().isSecureProcessing())
126 stylesheet.setSecureProcessing(true);
127
128 return stylesheet;
129 }
130
131 /**
132 * Receive notification of the end of an element.
133 *
134 * @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
135 * @param uri The Namespace URI, or an empty string.
136 * @param localName The local name (without prefix), or empty string if not namespace processing.
137 * @param rawName The qualified name (with prefix).
138 */
139 public void endElement(
140 StylesheetHandler handler, String uri, String localName, String rawName)
141 throws org.xml.sax.SAXException
142 {
143 super.endElement(handler, uri, localName, rawName);
144 handler.popElemTemplateElement();
145 handler.popStylesheet();
146 }
147 }