code: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the  "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /*
   * $Id$
   */
  package org.apache.xalan.processor;
  
  import javax.xml.transform.TransformerConfigurationException;
  import javax.xml.transform.TransformerException;
  
  import org.apache.xalan.templates.Stylesheet;
  import org.apache.xalan.templates.StylesheetComposed;
  import org.apache.xalan.templates.StylesheetRoot;
  
  import org.xml.sax.Attributes;
  
  /**
   * TransformerFactory for xsl:stylesheet or xsl:transform markup.
   * @see <a href="http://www.w3.org/TR/xslt#dtd">XSLT DTD</a>
   * @see <a href="http://www.w3.org/TR/xslt#stylesheet-element">stylesheet-element in XSLT Specification</a>
   * 
   * @xsl.usage internal
   */
  public class ProcessorStylesheetElement extends XSLTElementProcessor
  {
      static final long serialVersionUID = -877798927447840792L;
  
    /**
     * Receive notification of the start of an strip-space element.
     *
     * @param handler The calling StylesheetHandler/TemplatesBuilder.
     * @param uri The Namespace URI, or the empty string if the
     *        element has no Namespace URI or if Namespace
     *        processing is not being performed.
     * @param localName The local name (without prefix), or the
     *        empty string if Namespace processing is not being
     *        performed.
     * @param rawName The raw XML 1.0 name (with prefix), or the
     *        empty string if raw names are not available.
     * @param attributes The attributes attached to the element.  If
     *        there are no attributes, it shall be an empty
     *        Attributes object.
     */
    public void startElement(
            StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes)
              throws org.xml.sax.SAXException
    {
  
  		super.startElement(handler, uri, localName, rawName, attributes);
      try
      {
        int stylesheetType = handler.getStylesheetType();
        Stylesheet stylesheet;
  
        if (stylesheetType == StylesheetHandler.STYPE_ROOT)
        {
          try
          {
            stylesheet = getStylesheetRoot(handler);
          }
          catch(TransformerConfigurationException tfe)
          {
            throw new TransformerException(tfe);
          }
        }
        else
        {
          Stylesheet parent = handler.getStylesheet();
  
          if (stylesheetType == StylesheetHandler.STYPE_IMPORT)
          {
            StylesheetComposed sc = new StylesheetComposed(parent);
  
            parent.setImport(sc);
  
            stylesheet = sc;
          }
          else
          {
            stylesheet = new Stylesheet(parent);
  
            parent.setInclude(stylesheet);
          }
        }
  
        stylesheet.setDOMBackPointer(handler.getOriginatingNode());
        stylesheet.setLocaterInfo(handler.getLocator());
  
        stylesheet.setPrefixes(handler.getNamespaceSupport());
        handler.pushStylesheet(stylesheet);
        setPropertiesFromAttributes(handler, rawName, attributes,
                                    handler.getStylesheet());
        handler.pushElemTemplateElement(handler.getStylesheet());
      }
      catch(TransformerException te)
      {
        throw new org.xml.sax.SAXException(te);
      }
    }
  
    /**
     * This method can be over-ridden by a class that extends this one.
     * @param handler The calling StylesheetHandler/TemplatesBuilder.
     */
    protected Stylesheet getStylesheetRoot(StylesheetHandler handler) throws TransformerConfigurationException
    {
      StylesheetRoot stylesheet;
      stylesheet = new StylesheetRoot(handler.getSchema(), handler.getStylesheetProcessor().getErrorListener());
      
      if (handler.getStylesheetProcessor().isSecureProcessing())
        stylesheet.setSecureProcessing(true);
      
      return stylesheet;
    }
  
  /**
     * Receive notification of the end of an element.
     *
     * @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
     * @param uri The Namespace URI, or an empty string.
     * @param localName The local name (without prefix), or empty string if not namespace processing.
     * @param rawName The qualified name (with prefix).
     */
    public void endElement(
            StylesheetHandler handler, String uri, String localName, String rawName)
              throws org.xml.sax.SAXException
    {
  		super.endElement(handler, uri, localName, rawName);
      handler.popElemTemplateElement();
      handler.popStylesheet();
    }
  }
  