stylesheet.java

来自「java jdk 1.4的源码」· Java 代码 · 共 1,548 行 · 第 1/3 页

   */
  public int getVariableOrParamCount()
  {
    return (null != m_topLevelVariables) ? m_topLevelVariables.size() : 0;
  }

  /**
   * Set an "xsl:param" property.
   * @see <a href="http://www.w3.org/TR/xslt#top-level-variables">top-level-variables in XSLT Specification</a>
   *
   * @param v A non-null ElemParam reference.
   */
  public void setParam(ElemParam v)
  {
    setVariable(v);
  }

  /**
   * Get an "xsl:param" property.
   * @see <a href="http://www.w3.org/TR/xslt#top-level-variables">top-level-variables in XSLT Specification</a>
   *
   * @param qname non-null reference to qualified name of the parameter.
   *
   * @return ElemParam with the given name in the list or null
   */
  public ElemParam getParam(QName qname)
  {

    if (null != m_topLevelVariables)
    {
      int n = getVariableOrParamCount();

      for (int i = 0; i < n; i++)
      {
        ElemVariable var = getVariableOrParam(i);
        if((var.getXSLToken() == Constants.ELEMNAME_PARAMVARIABLE) &&
           (var.getName().equals(qname)))
          return (ElemParam)var;
      }
    }

    return null;
  }

  /**
   * The "xsl:template" properties.
   * @serial
   */
  private Vector m_templates;

  /**
   * Set an "xsl:template" property.
   * @see <a href="http://www.w3.org/TR/xslt#section-Defining-Template-Rules">section-Defining-Template-Rules in XSLT Specification</a>
   *
   * @param v ElemTemplate to add to list of templates
   */
  public void setTemplate(ElemTemplate v)
  {

    if (null == m_templates)
      m_templates = new Vector();

    m_templates.addElement(v);
    v.setStylesheet(this);
  }

  /**
   * Get an "xsl:template" property.
   * @see <a href="http://www.w3.org/TR/xslt#section-Defining-Template-Rules">section-Defining-Template-Rules in XSLT Specification</a>
   *
   * @param i Index of ElemTemplate in the list to get
   *
   * @return ElemTemplate at the given index in the list
   *
   * @throws TransformerException
   */
  public ElemTemplate getTemplate(int i) throws TransformerException
  {

    if (null == m_templates)
      throw new ArrayIndexOutOfBoundsException();

    return (ElemTemplate) m_templates.elementAt(i);
  }

  /**
   * Get the number of "xsl:template" properties.
   * @see <a href="http://www.w3.org/TR/xslt#section-Defining-Template-Rules">section-Defining-Template-Rules in XSLT Specification</a>
   *
   * @return the number of "xsl:template" properties.
   */
  public int getTemplateCount()
  {
    return (null != m_templates) ? m_templates.size() : 0;
  }

  /**
   * The "xsl:namespace-alias" properties.
   * @serial
   */
  private Vector m_prefix_aliases;

  /**
   * Set the "xsl:namespace-alias" property.
   * @see <a href="http://www.w3.org/TR/xslt#literal-result-element">literal-result-element in XSLT Specification</a>
   *
   * @param na NamespaceAlias elemeent to add to the list
   */
  public void setNamespaceAlias(NamespaceAlias na)
  {

    if (m_prefix_aliases == null)
      m_prefix_aliases = new Vector();

    m_prefix_aliases.addElement(na);
  }

  /**
   * Get an "xsl:namespace-alias" property.
   * @see <a href="http://www.w3.org/TR/xslt#literal-result-element">literal-result-element in XSLT Specification</a>
   *
   * @param i Index of NamespaceAlias element to get from the list 
   *
   * @return NamespaceAlias element at the given index in the list
   *
   * @throws ArrayIndexOutOfBoundsException
   */
  public NamespaceAlias getNamespaceAlias(int i)
          throws ArrayIndexOutOfBoundsException
  {

    if (null == m_prefix_aliases)
      throw new ArrayIndexOutOfBoundsException();

    return (NamespaceAlias) m_prefix_aliases.elementAt(i);
  }

  /**
   * Get the number of "xsl:namespace-alias" properties.
   * @see <a href="http://www.w3.org/TR/xslt#top-level-variables">top-level-variables in XSLT Specification</a>
   *
   * @return the number of "xsl:namespace-alias" properties.
   */
  public int getNamespaceAliasCount()
  {
    return (null != m_prefix_aliases) ? m_prefix_aliases.size() : 0;
  }

  /**
   * The "non-xsl-top-level" properties.
   * @serial
   */
  private Hashtable m_NonXslTopLevel;

  /**
   * Set found a non-xslt element.
   * @see <a href="http://www.w3.org/TR/xslt#stylesheet-element">stylesheet-element in XSLT Specification</a>
   *
   * @param name Qualified name of the element
   * @param obj The element object
   */
  public void setNonXslTopLevel(QName name, Object obj)
  {

    if (null == m_NonXslTopLevel)
      m_NonXslTopLevel = new Hashtable();

    m_NonXslTopLevel.put(name, obj);
  }

  /**
   * Get a non-xslt element.
   * @see <a href="http://www.w3.org/TR/xslt#stylesheet-element">stylesheet-element in XSLT Specification</a>
   *
   * @param name Qualified name of the element to get
   *
   * @return The object associate with the given name 
   */
  public Object getNonXslTopLevel(QName name)
  {
    return (null != m_NonXslTopLevel) ? m_NonXslTopLevel.get(name) : null;
  }

  // =========== End top-level XSLT properties ===========

  /**
   * The base URL of the XSL document.
   * @serial
   */
  private String m_href = null;

  /** The doctype-public element.
   *  @serial          */
  private String m_publicId;

  /** The doctype-system element.
   *  @serial          */
  private String m_systemId;

  /**
   * Get the base identifier with which this stylesheet is associated.
   *
   * @return the base identifier with which this stylesheet is associated.
   */
  public String getHref()
  {
    return m_href;
  }

  /**
   * Set the base identifier with which this stylesheet is associated.
   *
   * @param baseIdent the base identifier with which this stylesheet is associated.
   */
  public void setHref(String baseIdent)
  {
    m_href = baseIdent;
  }

  /**
   * Set the location information for this element.
   *
   * @param locator SourceLocator object with location information  
   */
  public void setLocaterInfo(SourceLocator locator)
  {

    if (null != locator)
    {
      m_publicId = locator.getPublicId();
      m_systemId = locator.getSystemId();

      if (null != m_systemId)
      {
        try
        {
          m_href = SystemIDResolver.getAbsoluteURI(m_systemId, null);
        }
        catch (TransformerException se)
        {

          // Ignore this for right now
        }
      }

      super.setLocaterInfo(locator);
    }
  }

  /**
   * The root of the stylesheet, where all the tables common
   * to all stylesheets are kept.
   * @serial
   */
  private StylesheetRoot m_stylesheetRoot;

  /**
   * Get the root of the stylesheet, where all the tables common
   * to all stylesheets are kept.
   *
   * @return the root of the stylesheet
   */
  public StylesheetRoot getStylesheetRoot()
  {
    return m_stylesheetRoot;
  }

  /**
   * Set the root of the stylesheet, where all the tables common
   * to all stylesheets are kept.
   *
   * @param v the root of the stylesheet
   */
  public void setStylesheetRoot(StylesheetRoot v)
  {
    m_stylesheetRoot = v;
  }

  /**
   * The parent of the stylesheet.  This will be null if this
   * is the root stylesheet.
   * @serial
   */
  private Stylesheet m_stylesheetParent;

  /**
   * Get the parent of the stylesheet.  This will be null if this
   * is the root stylesheet.
   *
   * @return the parent of the stylesheet.
   */
  public Stylesheet getStylesheetParent()
  {
    return m_stylesheetParent;
  }

  /**
   * Set the parent of the stylesheet.  This should be null if this
   * is the root stylesheet.
   *
   * @param v the parent of the stylesheet.
   */
  public void setStylesheetParent(Stylesheet v)
  {
    m_stylesheetParent = v;
  }

  /**
   * Get the owning aggregated stylesheet, or this
   * stylesheet if it is aggregated.
   *
   * @return the owning aggregated stylesheet or itself
   */
  public StylesheetComposed getStylesheetComposed()
  {

    Stylesheet sheet = this;

    while (!sheet.isAggregatedType())
    {
      sheet = sheet.getStylesheetParent();
    }

    return (StylesheetComposed) sheet;
  }

  /**
   * Get the type of the node.  We'll pretend we're a Document.
   *
   * @return the type of the node: document node.
   */
  public short getNodeType()
  {
    return DTM.DOCUMENT_NODE;
  }

  /**
   * Get an integer representation of the element type.
   *
   * @return An integer representation of the element, defined in the
   *     Constants class.
   * @see org.apache.xalan.templates.Constants
   */
  public int getXSLToken()
  {
    return Constants.ELEMNAME_STYLESHEET;
  }

  /**
   * Return the node name.
   *
   * @return The node name
   */
  public String getNodeName()
  {
    return Constants.ELEMNAME_STYLESHEET_STRING;
  }

  /**
   * Replace an "xsl:template" property.
   * This is a hook for CompilingStylesheetHandler, to allow
   * us to access a template, compile it, instantiate it,
   * and replace the original with the compiled instance.
   * ADDED 9/5/2000 to support compilation experiment
   *
   * @param v Compiled template to replace with
   * @param i Index of template to be replaced
   *
   * @throws TransformerException
   */
  public void replaceTemplate(ElemTemplate v, int i) throws TransformerException
  {

    if (null == m_templates)
      throw new ArrayIndexOutOfBoundsException();

    replaceChild(v, (ElemTemplateElement)m_templates.elementAt(i));
    m_templates.setElementAt(v, i);
    v.setStylesheet(this);
  }
  
    /**
     * Call the children visitors.
     * @param visitor The visitor whose appropriate method will be called.
     */
    protected void callChildVisitors(XSLTVisitor visitor, boolean callAttrs)
    {
      int s = getImportCount();
      for (int j = 0; j < s; j++)
      {
      	getImport(j).callVisitors(visitor);
      }
   
      s = getIncludeCount();
      for (int j = 0; j < s; j++)
      {
      	getInclude(j).callVisitors(visitor);
      }

      s = getOutputCount();
      for (int j = 0; j < s; j++)
      {
        visitor.visitTopLevelInstruction(getOutput(j));
      }

      // Next, add in the attribute-set elements

      s = getAttributeSetCount();
      for (int j = 0; j < s; j++)
      {
      	ElemAttributeSet attrSet = getAttributeSet(j);
        if (visitor.visitTopLevelInstruction(attrSet))
        {
          attrSet.callChildVisitors(visitor);
        }
      }
      // Now the decimal-formats

      s = getDecimalFormatCount();
      for (int j = 0; j < s; j++)
      {
        visitor.visitTopLevelInstruction(getDecimalFormat(j));
      }

      // Now the keys

      s = getKeyCount();
      for (int j = 0; j < s; j++)
      {
        visitor.visitTopLevelInstruction(getKey(j));
      }

      // And the namespace aliases

      s = getNamespaceAliasCount();
      for (int j = 0; j < s; j++)
      {
        visitor.visitTopLevelInstruction(getNamespaceAlias(j));
      }

      // Next comes the templates

      s = getTemplateCount();
      for (int j = 0; j < s; j++)
      {
        try
        {
          ElemTemplate template = getTemplate(j);
          if (visitor.visitTopLevelInstruction(template))
          {
            template.callChildVisitors(visitor);
          }
        }
        catch (TransformerException te)
        {
          throw new org.apache.xml.utils.WrappedRuntimeException(te);
        }
      }

      // Then, the variables

      s = getVariableOrParamCount();
      for (int j = 0; j < s; j++)
      {
      	ElemVariable var = getVariableOrParam(j);
        if (visitor.visitTopLevelVariableOrParamDecl(var))
        {
          var.callChildVisitors(visitor);
        }
      }

      // And lastly the whitespace preserving and stripping elements

      s = getStripSpaceCount();
      for (int j = 0; j < s; j++)
      {
        visitor.visitTopLevelInstruction(getStripSpace(j));
      }

      s = getPreserveSpaceCount();
      for (int j = 0; j < s; j++)
      {
        visitor.visitTopLevelInstruction(getPreserveSpace(j));
      }
      
      if(null != m_NonXslTopLevel)
      {
      	java.util.Enumeration enum = m_NonXslTopLevel.elements();
      	while(enum.hasMoreElements())
      	{
      	  ElemTemplateElement elem = (ElemTemplateElement)enum.nextElement();
          if (visitor.visitTopLevelInstruction(elem))
          {
            elem.callChildVisitors(visitor);
          }
      		
      	}
      }
    }
        
          
  /**
   * Accept a visitor and call the appropriate method 
   * for this class.
   * 
   * @param visitor The visitor whose appropriate method will be called.
   * @return true if the children of the object should be visited.
   */
  protected boolean accept(XSLTVisitor visitor)
  {
  	return visitor.visitStylesheet(this);
  }

  
}