Examples with DTM org.apache.xml.dtm.DTM used on opensource projects

Example 71 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class ElemApplyTemplates method transformSelectedNodes.

/**
   * Perform a query if needed, and call transformNode for each child.
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException Thrown in a variety of circumstances.
   * @xsl.usage advanced
   */
public void transformSelectedNodes(TransformerImpl transformer) throws TransformerException {
    final XPathContext xctxt = transformer.getXPathContext();
    final int sourceNode = xctxt.getCurrentNode();
    DTMIterator sourceNodes = m_selectExpression.asIterator(xctxt, sourceNode);
    VariableStack vars = xctxt.getVarStack();
    int nParams = getParamElemCount();
    int thisframe = vars.getStackFrame();
    boolean pushContextNodeListFlag = false;
    try {
        xctxt.pushCurrentNode(DTM.NULL);
        xctxt.pushCurrentExpressionNode(DTM.NULL);
        xctxt.pushSAXLocatorNull();
        transformer.pushElemTemplateElement(null);
        final Vector keys = (m_sortElems == null) ? null : transformer.processSortKeys(this, sourceNode);
        // Sort if we need to.
        if (null != keys)
            sourceNodes = sortNodes(xctxt, keys, sourceNodes);
        final SerializationHandler rth = transformer.getSerializationHandler();
        //      ContentHandler chandler = rth.getContentHandler();
        final StylesheetRoot sroot = transformer.getStylesheet();
        final TemplateList tl = sroot.getTemplateListComposed();
        final boolean quiet = transformer.getQuietConflictWarnings();
        // Should be able to get this from the iterator but there must be a bug.
        DTM dtm = xctxt.getDTM(sourceNode);
        int argsFrame = -1;
        if (nParams > 0) {
            // This code will create a section on the stack that is all the 
            // evaluated arguments.  These will be copied into the real params 
            // section of each called template.
            argsFrame = vars.link(nParams);
            vars.setStackFrame(thisframe);
            for (int i = 0; i < nParams; i++) {
                ElemWithParam ewp = m_paramElems[i];
                XObject obj = ewp.getValue(transformer, sourceNode);
                vars.setLocalVariable(i, obj, argsFrame);
            }
            vars.setStackFrame(argsFrame);
        }
        xctxt.pushContextNodeList(sourceNodes);
        pushContextNodeListFlag = true;
        IntStack currentNodes = xctxt.getCurrentNodeStack();
        IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();
        // pushParams(transformer, xctxt);
        int child;
        while (DTM.NULL != (child = sourceNodes.nextNode())) {
            currentNodes.setTop(child);
            currentExpressionNodes.setTop(child);
            if (xctxt.getDTM(child) != dtm) {
                dtm = xctxt.getDTM(child);
            }
            final int exNodeType = dtm.getExpandedTypeID(child);
            final int nodeType = dtm.getNodeType(child);
            final QName mode = transformer.getMode();
            ElemTemplate template = tl.getTemplateFast(xctxt, child, exNodeType, mode, -1, quiet, dtm);
            // See http://www.w3.org/TR/xslt#built-in-rule.
            if (null == template) {
                switch(nodeType) {
                    case DTM.DOCUMENT_FRAGMENT_NODE:
                    case DTM.ELEMENT_NODE:
                        template = sroot.getDefaultRule();
                        // %OPT% direct faster?
                        break;
                    case DTM.ATTRIBUTE_NODE:
                    case DTM.CDATA_SECTION_NODE:
                    case DTM.TEXT_NODE:
                        // if(rth.m_elemIsPending || rth.m_docPending)
                        //  rth.flushPending(true);
                        transformer.pushPairCurrentMatched(sroot.getDefaultTextRule(), child);
                        transformer.setCurrentElement(sroot.getDefaultTextRule());
                        // dtm.dispatchCharactersEvents(child, chandler, false);
                        dtm.dispatchCharactersEvents(child, rth, false);
                        transformer.popCurrentMatched();
                        continue;
                    case DTM.DOCUMENT_NODE:
                        template = sroot.getDefaultRootRule();
                        break;
                    default:
                        // No default rules for processing instructions and the like.
                        continue;
                }
            } else {
                transformer.setCurrentElement(template);
            }
            transformer.pushPairCurrentMatched(template, child);
            // See comment with unlink, below
            int currentFrameBottom;
            if (template.m_frameSize > 0) {
                xctxt.pushRTFContext();
                // See comment with unlink, below
                currentFrameBottom = vars.getStackFrame();
                vars.link(template.m_frameSize);
                // xsl:params might not be nulled.
                if (/* nParams > 0 && */
                template.m_inArgsSize > 0) {
                    int paramIndex = 0;
                    for (ElemTemplateElement elem = template.getFirstChildElem(); null != elem; elem = elem.getNextSiblingElem()) {
                        if (Constants.ELEMNAME_PARAMVARIABLE == elem.getXSLToken()) {
                            ElemParam ep = (ElemParam) elem;
                            int i;
                            for (i = 0; i < nParams; i++) {
                                ElemWithParam ewp = m_paramElems[i];
                                if (ewp.m_qnameID == ep.m_qnameID) {
                                    XObject obj = vars.getLocalVariable(i, argsFrame);
                                    vars.setLocalVariable(paramIndex, obj);
                                    break;
                                }
                            }
                            if (i == nParams)
                                vars.setLocalVariable(paramIndex, null);
                        } else
                            break;
                        paramIndex++;
                    }
                }
            } else
                currentFrameBottom = 0;
            // each of them.
            for (ElemTemplateElement t = template.m_firstChild; t != null; t = t.m_nextSibling) {
                xctxt.setSAXLocator(t);
                try {
                    transformer.pushElemTemplateElement(t);
                    t.execute(transformer);
                } finally {
                    transformer.popElemTemplateElement();
                }
            }
            if (template.m_frameSize > 0) {
                // See Frank Weiss bug around 03/19/2002 (no Bugzilla report yet).
                // While unlink will restore to the proper place, the real position 
                // may have been changed for xsl:with-param, so that variables 
                // can be accessed.  
                // of right now.
                // More:
                // When we entered this function, the current 
                // frame buffer (cfb) index in the variable stack may 
                // have been manually set.  If we just call 
                // unlink(), however, it will restore the cfb to the 
                // previous link index from the link stack, rather than 
                // the manually set cfb.  So, 
                // the only safe solution is to restore it back 
                // to the same position it was on entry, since we're 
                // really not working in a stack context here. (Bug4218)
                vars.unlink(currentFrameBottom);
                xctxt.popRTFContext();
            }
            transformer.popCurrentMatched();
        }
    // end while (DTM.NULL != (child = sourceNodes.nextNode()))
    } catch (SAXException se) {
        transformer.getErrorListener().fatalError(new TransformerException(se));
    } finally {
        // Unlink to the original stack frame
        if (nParams > 0)
            vars.unlink(thisframe);
        xctxt.popSAXLocator();
        if (pushContextNodeListFlag)
            xctxt.popContextNodeList();
        transformer.popElemTemplateElement();
        xctxt.popCurrentExpressionNode();
        xctxt.popCurrentNode();
        sourceNodes.detach();
    }
}

Example 72 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class ElemCopyOf method execute.

/**
   * The xsl:copy-of element can be used to insert a result tree
   * fragment into the result tree, without first converting it to
   * a string as xsl:value-of does (see [7.6.1 Generating Text with
   * xsl:value-of]).
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException
   */
public void execute(TransformerImpl transformer) throws TransformerException {
    try {
        XPathContext xctxt = transformer.getXPathContext();
        int sourceNode = xctxt.getCurrentNode();
        XObject value = m_selectExpression.execute(xctxt, sourceNode, this);
        SerializationHandler handler = transformer.getSerializationHandler();
        if (null != value) {
            int type = value.getType();
            String s;
            switch(type) {
                case XObject.CLASS_BOOLEAN:
                case XObject.CLASS_NUMBER:
                case XObject.CLASS_STRING:
                    s = value.str();
                    handler.characters(s.toCharArray(), 0, s.length());
                    break;
                case XObject.CLASS_NODESET:
                    // System.out.println(value);
                    DTMIterator nl = value.iter();
                    // Copy the tree.
                    DTMTreeWalker tw = new TreeWalker2Result(transformer, handler);
                    int pos;
                    while (DTM.NULL != (pos = nl.nextNode())) {
                        DTM dtm = xctxt.getDTMManager().getDTM(pos);
                        short t = dtm.getNodeType(pos);
                        // generated, so we need to only walk the child nodes.
                        if (t == DTM.DOCUMENT_NODE) {
                            for (int child = dtm.getFirstChild(pos); child != DTM.NULL; child = dtm.getNextSibling(child)) {
                                tw.traverse(child);
                            }
                        } else if (t == DTM.ATTRIBUTE_NODE) {
                            SerializerUtils.addAttribute(handler, pos);
                        } else {
                            tw.traverse(pos);
                        }
                    }
                    // nl.detach();
                    break;
                case XObject.CLASS_RTREEFRAG:
                    SerializerUtils.outputResultTreeFragment(handler, value, transformer.getXPathContext());
                    break;
                default:
                    s = value.str();
                    handler.characters(s.toCharArray(), 0, s.length());
                    break;
            }
        }
    // I don't think we want this.  -sb
    //  if (transformer.getDebug())
    //  transformer.getTraceManager().fireSelectedEvent(sourceNode, this,
    //  "endSelect", m_selectExpression, value);
    } catch (org.xml.sax.SAXException se) {
        throw new TransformerException(se);
    }
}

Example 73 with DTM

use of org.apache.xml.dtm.DTM in project robovm by robovm.

the class KeyTable method getRefsTable.

/**
   * @return lazy initialized refs table associating evaluation of key function
   *         with a XNodeSet
   */
private Hashtable getRefsTable() {
    if (m_refsTable == null) {
        // initial capacity set to a prime number to improve hash performance
        m_refsTable = new Hashtable(89);
        KeyIterator ki = (KeyIterator) (m_keyNodes).getContainedIter();
        XPathContext xctxt = ki.getXPathContext();
        Vector keyDecls = getKeyDeclarations();
        int nKeyDecls = keyDecls.size();
        int currentNode;
        m_keyNodes.reset();
        while (DTM.NULL != (currentNode = m_keyNodes.nextNode())) {
            try {
                for (int keyDeclIdx = 0; keyDeclIdx < nKeyDecls; keyDeclIdx++) {
                    KeyDeclaration keyDeclaration = (KeyDeclaration) keyDecls.elementAt(keyDeclIdx);
                    XObject xuse = keyDeclaration.getUse().execute(xctxt, currentNode, ki.getPrefixResolver());
                    if (xuse.getType() != xuse.CLASS_NODESET) {
                        XMLString exprResult = xuse.xstr();
                        addValueInRefsTable(xctxt, exprResult, currentNode);
                    } else {
                        DTMIterator i = ((XNodeSet) xuse).iterRaw();
                        int currentNodeInUseClause;
                        while (DTM.NULL != (currentNodeInUseClause = i.nextNode())) {
                            DTM dtm = xctxt.getDTM(currentNodeInUseClause);
                            XMLString exprResult = dtm.getStringValue(currentNodeInUseClause);
                            addValueInRefsTable(xctxt, exprResult, currentNode);
                        }
                    }
                }
            } catch (TransformerException te) {
                throw new WrappedRuntimeException(te);
            }
        }
    }
    return m_refsTable;
}

Example 74 with DTM

use of org.apache.xml.dtm.DTM in project robovm by robovm.

the class NodeSorter method compare.

/**
   * Return the results of a compare of two nodes.
   * TODO: Optimize compare -- cache the getStringExpr results, key by m_selectPat + hash of node.
   *
   * @param n1 First node to use in compare
   * @param n2 Second node to use in compare
   * @param kIndex Index of NodeSortKey to use for sort
   * @param support XPath context to use
   *
   * @return The results of the compare of the two nodes.
   *
   * @throws TransformerException
   */
int compare(NodeCompareElem n1, NodeCompareElem n2, int kIndex, XPathContext support) throws TransformerException {
    int result = 0;
    NodeSortKey k = (NodeSortKey) m_keys.elementAt(kIndex);
    if (k.m_treatAsNumbers) {
        double n1Num, n2Num;
        if (kIndex == 0) {
            n1Num = ((Double) n1.m_key1Value).doubleValue();
            n2Num = ((Double) n2.m_key1Value).doubleValue();
        } else if (kIndex == 1) {
            n1Num = ((Double) n1.m_key2Value).doubleValue();
            n2Num = ((Double) n2.m_key2Value).doubleValue();
        } else /* Leave this in case we decide to use an array later
      if (kIndex < maxkey)
      {
      double n1Num = (double)n1.m_keyValue[kIndex];
      double n2Num = (double)n2.m_keyValue[kIndex];
      }*/
        {
            // Get values dynamically
            XObject r1 = k.m_selectPat.execute(m_execContext, n1.m_node, k.m_namespaceContext);
            XObject r2 = k.m_selectPat.execute(m_execContext, n2.m_node, k.m_namespaceContext);
            n1Num = r1.num();
            // Can't use NaN for compare. They are never equal. Use zero instead.
            // That way we can keep elements in document order. 
            //n1Num = Double.isNaN(d) ? 0.0 : d;
            n2Num = r2.num();
        //n2Num = Double.isNaN(d) ? 0.0 : d;
        }
        if ((n1Num == n2Num) && ((kIndex + 1) < m_keys.size())) {
            result = compare(n1, n2, kIndex + 1, support);
        } else {
            double diff;
            if (Double.isNaN(n1Num)) {
                if (Double.isNaN(n2Num))
                    diff = 0.0;
                else
                    diff = -1;
            } else if (Double.isNaN(n2Num))
                diff = 1;
            else
                diff = n1Num - n2Num;
            // process order parameter 
            result = (int) ((diff < 0.0) ? (k.m_descending ? 1 : -1) : (diff > 0.0) ? (k.m_descending ? -1 : 1) : 0);
        }
    } else // end treat as numbers 
    {
        CollationKey n1String, n2String;
        if (kIndex == 0) {
            n1String = (CollationKey) n1.m_key1Value;
            n2String = (CollationKey) n2.m_key1Value;
        } else if (kIndex == 1) {
            n1String = (CollationKey) n1.m_key2Value;
            n2String = (CollationKey) n2.m_key2Value;
        } else /* Leave this in case we decide to use an array later
      if (kIndex < maxkey)
      {
        String n1String = (String)n1.m_keyValue[kIndex];
        String n2String = (String)n2.m_keyValue[kIndex];
      }*/
        {
            // Get values dynamically
            XObject r1 = k.m_selectPat.execute(m_execContext, n1.m_node, k.m_namespaceContext);
            XObject r2 = k.m_selectPat.execute(m_execContext, n2.m_node, k.m_namespaceContext);
            n1String = k.m_col.getCollationKey(r1.str());
            n2String = k.m_col.getCollationKey(r2.str());
        }
        // Use collation keys for faster compare, but note that whitespaces 
        // etc... are treated differently from if we were comparing Strings.
        result = n1String.compareTo(n2String);
        //Process caseOrder parameter
        if (k.m_caseOrderUpper) {
            String tempN1 = n1String.getSourceString().toLowerCase();
            String tempN2 = n2String.getSourceString().toLowerCase();
            if (tempN1.equals(tempN2)) {
                //java defaults to upper case is greater.
                result = result == 0 ? 0 : -result;
            }
        }
        //Process order parameter
        if (k.m_descending) {
            result = -result;
        }
    }
    if (0 == result) {
        if ((kIndex + 1) < m_keys.size()) {
            result = compare(n1, n2, kIndex + 1, support);
        }
    }
    if (0 == result) {
        // I shouldn't have to do this except that there seems to 
        // be a glitch in the mergesort
        // if(r1.getType() == r1.CLASS_NODESET)
        // {
        // %OPT%
        DTM dtm = support.getDTM(n1.m_node);
        result = dtm.isNodeAfter(n1.m_node, n2.m_node) ? -1 : 1;
    // }
    }
    return result;
}

Example 75 with DTM

use of org.apache.xml.dtm.DTM in project robovm by robovm.

the class ElemNumber method getPreviousNode.

/**
   * Get the previous node to be counted.
   *
   * @param xctxt The XPath runtime state for this.
   * @param pos The current node
   *
   * @return the previous node to be counted.
   *
   * @throws TransformerException
   */
public int getPreviousNode(XPathContext xctxt, int pos) throws TransformerException {
    XPath countMatchPattern = getCountMatchPattern(xctxt, pos);
    DTM dtm = xctxt.getDTM(pos);
    if (Constants.NUMBERLEVEL_ANY == m_level) {
        XPath fromMatchPattern = m_fromMatchPattern;
        // or the top of the tree is found.
        while (DTM.NULL != pos) {
            // Get the previous sibling, if there is no previous sibling, 
            // then count the parent, but if there is a previous sibling, 
            // dive down to the lowest right-hand (last) child of that sibling.
            int next = dtm.getPreviousSibling(pos);
            if (DTM.NULL == next) {
                next = dtm.getParent(pos);
                if ((DTM.NULL != next) && ((((null != fromMatchPattern) && (fromMatchPattern.getMatchScore(xctxt, next) != XPath.MATCH_SCORE_NONE))) || (dtm.getNodeType(next) == DTM.DOCUMENT_NODE))) {
                    // return null from function.
                    pos = DTM.NULL;
                    // from while loop
                    break;
                }
            } else {
                // dive down to the lowest right child.
                int child = next;
                while (DTM.NULL != child) {
                    child = dtm.getLastChild(next);
                    if (DTM.NULL != child)
                        next = child;
                }
            }
            pos = next;
            if ((DTM.NULL != pos) && ((null == countMatchPattern) || (countMatchPattern.getMatchScore(xctxt, pos) != XPath.MATCH_SCORE_NONE))) {
                break;
            }
        }
    } else // NUMBERLEVEL_MULTI or NUMBERLEVEL_SINGLE
    {
        while (DTM.NULL != pos) {
            pos = dtm.getPreviousSibling(pos);
            if ((DTM.NULL != pos) && ((null == countMatchPattern) || (countMatchPattern.getMatchScore(xctxt, pos) != XPath.MATCH_SCORE_NONE))) {
                break;
            }
        }
    }
    return pos;
}