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.templates;
  
  import javax.xml.transform.TransformerException;
  
  import org.apache.xalan.res.XSLMessages;
  import org.apache.xalan.res.XSLTErrorResources;
  import org.apache.xalan.transformer.TransformerImpl;
  import org.apache.xml.utils.QName;
  
  /**
   * Implement xsl:attribute-set.
   * <pre>
   * &amp;!ELEMENT xsl:attribute-set (xsl:attribute)*>
   * &amp;!ATTLIST xsl:attribute-set
   *   name %qname; #REQUIRED
   *   use-attribute-sets %qnames; #IMPLIED
   * &amp;
   * </pre>
   * @see <a href="http://www.w3.org/TR/xslt#attribute-sets">attribute-sets in XSLT Specification</a>
   * @xsl.usage advanced
   */
  public class ElemAttributeSet extends ElemUse
  {
      static final long serialVersionUID = -426740318278164496L;
  
    /**
     * The name attribute specifies the name of the attribute set.
     * @serial
     */
    public QName m_qname = null;
  
    /**
     * Set the "name" attribute.
     * The name attribute specifies the name of the attribute set.
     *
     * @param name Name attribute to set
     */
    public void setName(QName name)
    {
      m_qname = name;
    }
  
    /**
     * Get the "name" attribute.
     * The name attribute specifies the name of the attribute set.
     *
     * @return The name attribute of the attribute set
     */
    public QName getName()
    {
      return m_qname;
    }
  
    /**
     * Get an int constant identifying the type of element.
     * @see org.apache.xalan.templates.Constants
     *
     * @return Token ID of the element 
     */
    public int getXSLToken()
    {
      return Constants.ELEMNAME_DEFINEATTRIBUTESET;
    }
  
    /**
     * Return the node name.
     *
     * @return The name of this element
     */
    public String getNodeName()
    {
      return Constants.ELEMNAME_ATTRIBUTESET_STRING;
    }
  
    /**
     * Apply a set of attributes to the element.
     *
     * @param transformer non-null reference to the the current transform-time state.
     *
     * @throws TransformerException
     */
    public void execute(
            TransformerImpl transformer)
              throws TransformerException
    {
  
      if (transformer.getDebug())
  	  transformer.getTraceManager().fireTraceEvent(this);
  
      if (transformer.isRecursiveAttrSet(this))
      {
        throw new TransformerException(
          XSLMessages.createMessage(
            XSLTErrorResources.ER_XSLATTRSET_USED_ITSELF,
            new Object[]{ m_qname.getLocalPart() }));  //"xsl:attribute-set '"+m_qname.m_localpart+
      }
  
      transformer.pushElemAttributeSet(this);
      super.execute(transformer);
  
      ElemAttribute attr = (ElemAttribute) getFirstChildElem();
  
      while (null != attr)
      {
        attr.execute(transformer);
  
        attr = (ElemAttribute) attr.getNextSiblingElem();
      }
  
      transformer.popElemAttributeSet();
     
      if (transformer.getDebug())
  	  transformer.getTraceManager().fireTraceEndEvent(this);
  
    }
  
    /**
     * Add a child to the child list.
     * <!ELEMENT xsl:attribute-set (xsl:attribute)*>
     * <!ATTLIST xsl:attribute-set
     *   name %qname; #REQUIRED
     *   use-attribute-sets %qnames; #IMPLIED
     * >
     *
     * @param newChild Child to be added to this node's list of children
     *
     * @return The child that was just added to the list of children
     *
     * @throws DOMException
     */
    public ElemTemplateElement appendChildElem(ElemTemplateElement newChild)
    {
  
      int type = ((ElemTemplateElement) newChild).getXSLToken();
  
      switch (type)
      {
      case Constants.ELEMNAME_ATTRIBUTE :
        break;
      default :
        error(XSLTErrorResources.ER_CANNOT_ADD,
              new Object[]{ newChild.getNodeName(),
                            this.getNodeName() });  //"Can not add " +((ElemTemplateElement)newChild).m_elemName +
  
      //" to " + this.m_elemName);
      }
  
      return super.appendChild(newChild);
    }
  
    /**
     * This function is called during recomposition to
     * control how this element is composed.
     * @param root The root stylesheet for this transformation.
     */
    public void recompose(StylesheetRoot root)
    {
      root.recomposeAttributeSets(this);
    }
  
  }
  