Package org.apache.xpath

Examples of org.apache.xpath.XPathContext$XPathExpressionContext


        m_nsSupport = (NamespaceMappings)rtf.getNamespaceMappings().clone();
       
        // Do other fields need to be saved/restored?
      }
      XPathContext xpc = transformer.getXPathContext();

      m_variableStacks = (VariableStack) xpc.getVarStack().clone();
      m_currentNodes = (IntStack) xpc.getCurrentNodeStack().clone();
      m_currentExpressionNodes =
        (IntStack) xpc.getCurrentExpressionNodeStack().clone();
      m_contextNodeLists = (Stack) xpc.getContextNodeListsStack().clone();

      if (!m_contextNodeLists.empty())
        m_contextNodeList =
          (DTMIterator) xpc.getContextNodeList().clone();

      m_axesIteratorStack = (Stack) xpc.getAxesIteratorStackStacks().clone();
      m_currentTemplateRuleIsNull =
        (BoolStack) transformer.m_currentTemplateRuleIsNull.clone();
      m_currentTemplateElements =
        (ObjectStack) transformer.m_currentTemplateElements.clone();
      m_currentMatchTemplates =
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   */
  public void execute(
          TransformerImpl transformer)
            throws TransformerException
  {
    XPathContext xctxt = transformer.getXPathContext();
   
    transformer.getStackGuard().checkForInfinateLoop();
   
    xctxt.pushRTFContext();

    if (transformer.getDebug())
      transformer.getTraceManager().fireTraceEvent(this);

      // %REVIEW% commenting out of the code below.
//    if (null != sourceNode)
//    {
      transformer.executeChildTemplates(this, true);
//    }
//    else  // if(null == sourceNode)
//    {
//      transformer.getMsgMgr().error(this,
//        this, sourceNode,
//        XSLTErrorResources.ER_NULL_SOURCENODE_HANDLEAPPLYTEMPLATES);
//
//      //"sourceNode is null in handleApplyTemplatesInstruction!");
//    }

    if (transformer.getDebug())
      transformer.getTraceManager().fireTraceEndEvent(this);

    xctxt.popRTFContext()
    }
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  {
    m_optimizer = stylesheet.getOptimizer();
    m_incremental = stylesheet.getIncremental();
    m_source_location = stylesheet.getSource_location();   
    setStylesheet(stylesheet);
    XPathContext xPath = new XPathContext(this);
    xPath.setIncremental(m_incremental);
    xPath.getDTMManager().setIncremental(m_incremental);
    xPath.setSource_location(m_source_location);
    xPath.getDTMManager().setSource_location(m_source_location);
   
    if (stylesheet.isSecureProcessing())
      xPath.setSecureProcessing(true);
   
    setXPathContext(xPath);
    getXPathContext().setNamespaceContext(stylesheet);
    m_stackGuard = new StackGuard(this);   
  }
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    // Make sure we're not writing to the same output content handler.
    synchronized (m_serializationHandler)
    {
      m_hasBeenReset = false;
     
      XPathContext xctxt = getXPathContext();
      DTM dtm = xctxt.getDTM(node);

      try
      {
        pushGlobalVars(node);

        // ==========
        // Give the top-level templates a chance to pass information into
        // the context (this is mainly for setting up tables for extensions).
        StylesheetRoot stylesheet = this.getStylesheet();
        int n = stylesheet.getGlobalImportCount();

        for (int i = 0; i < n; i++)
        {
          StylesheetComposed imported = stylesheet.getGlobalImport(i);
          int includedCount = imported.getIncludeCountComposed();

          for (int j = -1; j < includedCount; j++)
          {
            Stylesheet included = imported.getIncludeComposed(j);

            included.runtimeInit(this);

            for (ElemTemplateElement child = included.getFirstChildElem();
                    child != null; child = child.getNextSiblingElem())
            {
              child.runtimeInit(this);
            }
          }
        }
        // ===========       
        // System.out.println("Calling applyTemplateToNode - "+Thread.currentThread().getName());
        DTMIterator dtmIter = new org.apache.xpath.axes.SelfIteratorNoPredicate();
        dtmIter.setRoot(node, xctxt);
        xctxt.pushContextNodeList(dtmIter);
        try
        {
          this.applyTemplateToNode(null, null, node);
        }
        finally
        {
          xctxt.popContextNodeList();
        }
        // m_stylesheetRoot.getStartRule().execute(this);

        // System.out.println("Done with applyTemplateToNode - "+Thread.currentThread().getName());
        if (null != m_serializationHandler)
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   * index slot assigned for it in ElemExsltFunction compose().
   *
   */
  public void execute(TransformerImpl transformer) throws TransformerException
  {   
    XPathContext context = transformer.getXPathContext();

    if (transformer.getDebug())
      transformer.getTraceManager().fireTraceEvent(this);
   
    // Verify that result has not already been set by another result
    // element. Recursion is allowed: intermediate results are cleared
    // in the owner ElemExsltFunction execute().
    if (transformer.currentFuncResultSeen()) {
        throw new TransformerException("An EXSLT function cannot set more than one result!");
    }

    int sourceNode = context.getCurrentNode();

    // Set the return value;
    XObject var = getValue(transformer, sourceNode);
    transformer.popCurrentFuncResult();
    transformer.pushCurrentFuncResult(var);
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   * @throws TransformerException
   */
  public void execute(TransformerImpl transformer) throws TransformerException
  {

    XPathContext xctxt = transformer.getXPathContext();
    int sourceNode = xctxt.getCurrentNode();

    if (transformer.getDebug())
    {
      XObject test = m_test.execute(xctxt, sourceNode, this);

View Full Code Here

  public XObject getValue(TransformerImpl transformer, int sourceNode)
          throws TransformerException
  {

    XObject var;
    XPathContext xctxt = transformer.getXPathContext();

    xctxt.pushCurrentNode(sourceNode);
    try
    {
      if (null != m_selectPattern)
      {
        var = m_selectPattern.execute(xctxt, sourceNode, this);

        var.allowDetachToRelease(false);

        if (transformer.getDebug())
          transformer.getTraceManager().fireSelectedEvent(sourceNode, this,
                  "select", m_selectPattern, var);
      }
      else if (null == getFirstChildElem())
      {
        var = XString.EMPTYSTRING;
      }
      else
      {

        // Use result tree fragment.
        // Global variables may be deferred (see XUnresolvedVariable) and hence
        // need to be assigned to a different set of DTMs than local variables
        // so they aren't popped off the stack on return from a template.
        int df;

    // Bugzilla 7118: A variable set via an RTF may create local
    // variables during that computation. To keep them from overwriting
    // variables at this level, push a new variable stack.
    ////// PROBLEM: This is provoking a variable-used-before-set
    ////// problem in parameters. Needs more study.
    try
    {
      //////////xctxt.getVarStack().link(0);
      if(m_parentNode instanceof Stylesheet) // Global variable
        df = transformer.transformToGlobalRTF(this);
      else
        df = transformer.transformToRTF(this);
      }
    finally{
      //////////////xctxt.getVarStack().unlink();
      }

        var = new XRTreeFrag(df, xctxt, this);
      }
    }
    finally
    {     
      xctxt.popCurrentNode();
    }

    return var;
  }
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  }
 
  public void execute(TransformerImpl transformer, XObject[] args)
          throws TransformerException
  {
    XPathContext xctxt = transformer.getXPathContext();
    VariableStack vars = xctxt.getVarStack();
   
    // Increment the frame bottom of the variable stack by the
    // frame size
    int thisFrame = vars.getStackFrame();
    int nextFrame = vars.link(m_frameSize);
View Full Code Here

    AVT avt = getLiteralResultAttribute(rawName);

    if ((null != avt) && avt.getRawName().equals(rawName))
    {
      XPathContext xctxt = transformer.getXPathContext();

      return avt.evaluate(xctxt,
            xctxt.getDTMHandleFromNode(sourceNode),
            this);
    }

    return null;
  }
View Full Code Here

   */
  public void transformSelectedNodes(TransformerImpl transformer)
          throws TransformerException
  {

    final XPathContext xctxt = transformer.getXPathContext();
    final int sourceNode = xctxt.getCurrentNode();
    DTMIterator sourceNodes = m_selectExpression.asIterator(xctxt,
            sourceNode);

    try
    {

      final Vector keys = (m_sortElems == null)
              ? null
              : transformer.processSortKeys(this, sourceNode);

      // Sort if we need to.
      if (null != keys)
        sourceNodes = sortNodes(xctxt, keys, sourceNodes);

    if (transformer.getDebug())
    {

        // The original code, which is broken for bug#16889,
        // which fails to get the original select expression in the select event.
        /*  transformer.getTraceManager().fireSelectedEvent(
         *    sourceNode,
         *            this,
         *            "select",
         *            new XPath(m_selectExpression),
         *            new org.apache.xpath.objects.XNodeSet(sourceNodes));
         */

        // The following code fixes bug#16889
        // Solution: Store away XPath in setSelect(Xath), and use it here.
        // Pass m_xath, which the current node is associated with, onto the TraceManager.
       
        Expression expr = m_xpath.getExpression();
        org.apache.xpath.objects.XObject xObject = expr.execute(xctxt);
        int current = xctxt.getCurrentNode();
        transformer.getTraceManager().fireSelectedEvent(
            current,
            this,
            "select",
            m_xpath,
            xObject);
    }



      xctxt.pushCurrentNode(DTM.NULL);

      IntStack currentNodes = xctxt.getCurrentNodeStack();

      xctxt.pushCurrentExpressionNode(DTM.NULL);

      IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();

      xctxt.pushSAXLocatorNull();
      xctxt.pushContextNodeList(sourceNodes);
      transformer.pushElemTemplateElement(null);

      // pushParams(transformer, xctxt);
      // Should be able to get this from the iterator but there must be a bug.
      DTM dtm = xctxt.getDTM(sourceNode);
      int docID = sourceNode & DTMManager.IDENT_DTM_DEFAULT;
      int child;

      while (DTM.NULL != (child = sourceNodes.nextNode()))
      {
        currentNodes.setTop(child);
        currentExpressionNodes.setTop(child);

        if ((child & DTMManager.IDENT_DTM_DEFAULT) != docID)
        {
          dtm = xctxt.getDTM(child);
          docID = child & DTMManager.IDENT_DTM_DEFAULT;
        }

        //final int exNodeType = dtm.getExpandedTypeID(child);
        final int nodeType = dtm.getNodeType(child);

        // Fire a trace event for the template.
        if (transformer.getDebug())
        {
           transformer.getTraceManager().fireTraceEvent(this);
        }

        // And execute the child templates.
        // Loop through the children of the template, calling execute on
        // each of them.
        for (ElemTemplateElement t = this.m_firstChild; t != null;
             t = t.m_nextSibling)
        {
          xctxt.setSAXLocator(t);
          transformer.setCurrentElement(t);
          t.execute(transformer);
        }
       
        if (transformer.getDebug())
        {
         // We need to make sure an old current element is not
          // on the stack.  See TransformerImpl#getElementCallstack.
          transformer.setCurrentElement(null);
          transformer.getTraceManager().fireTraceEndEvent(this);
        }


     // KLUGE: Implement <?xalan:doc_cache_off?>
     // ASSUMPTION: This will be set only when the XPath was indeed
     // a call to the Document() function. Calling it in other
     // situations is likely to fry Xalan.
     //
     // %REVIEW% We need a MUCH cleaner solution -- one that will
     // handle cleaning up after document() and getDTM() in other
    // contexts. The whole SourceTreeManager mechanism should probably
     // be moved into DTMManager rather than being explicitly invoked in
     // FuncDocument and here.
     if(m_doc_cache_off)
    {
       if(DEBUG)
         System.out.println("JJK***** CACHE RELEASE *****\n"+
               "\tdtm="+dtm.getDocumentBaseURI());
      // NOTE: This will work because this is _NOT_ a shared DTM, and thus has
      // only a single Document node. If it could ever be an RTF or other
     // shared DTM, this would require substantial rework.
       xctxt.getSourceTreeManager().removeDocumentFromCache(dtm.getDocument());
       xctxt.release(dtm,false);
     }
      }
    }
    finally
    {
      if (transformer.getDebug())
        transformer.getTraceManager().fireSelectedEndEvent(sourceNode, this,
                "select", new XPath(m_selectExpression),
                new org.apache.xpath.objects.XNodeSet(sourceNodes));

      xctxt.popSAXLocator();
      xctxt.popContextNodeList();
      transformer.popElemTemplateElement();
      xctxt.popCurrentExpressionNode();
      xctxt.popCurrentNode();
      sourceNodes.detach();
    }
  }
View Full Code Here

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Related Classes of org.apache.xpath.XPathContext$XPathExpressionContext

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