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

Example 26 with DTMIterator

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

the class LocPathIterator method asNode.

/**
   * Return the first node out of the nodeset, if this expression is 
   * a nodeset expression.  This is the default implementation for 
   * nodesets.  Derived classes should try and override this and return a 
   * value without having to do a clone operation.
   * @param xctxt The XPath runtime context.
   * @return the first node out of the nodeset, or DTM.NULL.
   */
public int asNode(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    DTMIterator iter = (DTMIterator) m_clones.getInstance();
    int current = xctxt.getCurrentNode();
    iter.setRoot(current, xctxt);
    int next = iter.nextNode();
    // m_clones.freeInstance(iter);
    iter.detach();
    return next;
}

Example 27 with DTMIterator

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

the class FuncPosition method getPositionInContextNodeList.

/**
   * Get the position in the current context node list.
   *
   * @param xctxt Runtime XPath context.
   *
   * @return The current position of the itteration in the context node list, 
   *         or -1 if there is no active context node list.
   */
public int getPositionInContextNodeList(XPathContext xctxt) {
    // System.out.println("FuncPosition- entry");
    // If we're in a predicate, then this will return non-null.
    SubContextList iter = m_isTopLevel ? null : xctxt.getSubContextList();
    if (null != iter) {
        int prox = iter.getProximityPosition(xctxt);
        // System.out.println("FuncPosition- prox: "+prox);
        return prox;
    }
    DTMIterator cnl = xctxt.getContextNodeList();
    if (null != cnl) {
        int n = cnl.getCurrentNode();
        if (n == DTM.NULL) {
            if (cnl.getCurrentPos() == 0)
                return 0;
            // a problem for current().
            try {
                cnl = cnl.cloneWithReset();
            } catch (CloneNotSupportedException cnse) {
                throw new org.apache.xml.utils.WrappedRuntimeException(cnse);
            }
            int currentNode = xctxt.getContextNode();
            // System.out.println("currentNode: "+currentNode);
            while (DTM.NULL != (n = cnl.nextNode())) {
                if (n == currentNode)
                    break;
            }
        }
        // System.out.println("FuncPosition- cnl.getCurrentPos(): "+cnl.getCurrentPos());
        return cnl.getCurrentPos();
    }
    // System.out.println("FuncPosition - out of guesses: -1");
    return -1;
}

Example 28 with DTMIterator

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

the class TransformerImpl method applyTemplateToNode.

/**
   * Given an element and mode, find the corresponding
   * template and process the contents.
   *
   * @param xslInstruction The calling element.
   * @param template The template to use if xsl:for-each, current template for apply-imports, or null.
   * @param child The source context node.
   * @throws TransformerException
   * @return true if applied a template, false if not.
   * @xsl.usage advanced
   */
public // xsl:apply-templates or xsl:for-each
boolean applyTemplateToNode(// xsl:apply-templates or xsl:for-each
ElemTemplateElement xslInstruction, ElemTemplate template, int child) throws TransformerException {
    DTM dtm = m_xcontext.getDTM(child);
    short nodeType = dtm.getNodeType(child);
    boolean isDefaultTextRule = false;
    boolean isApplyImports = false;
    isApplyImports = ((xslInstruction == null) ? false : xslInstruction.getXSLToken() == Constants.ELEMNAME_APPLY_IMPORTS);
    if (null == template || isApplyImports) {
        int maxImportLevel, endImportLevel = 0;
        if (isApplyImports) {
            maxImportLevel = template.getStylesheetComposed().getImportCountComposed() - 1;
            endImportLevel = template.getStylesheetComposed().getEndImportCountComposed();
        } else {
            maxImportLevel = -1;
        }
        // We want to match -no- templates. See bugzilla bug 1170.
        if (isApplyImports && (maxImportLevel == -1)) {
            template = null;
        } else {
            // Find the XSL template that is the best match for the 
            // element.        
            XPathContext xctxt = m_xcontext;
            try {
                xctxt.pushNamespaceContext(xslInstruction);
                QName mode = this.getMode();
                if (isApplyImports)
                    template = m_stylesheetRoot.getTemplateComposed(xctxt, child, mode, maxImportLevel, endImportLevel, m_quietConflictWarnings, dtm);
                else
                    template = m_stylesheetRoot.getTemplateComposed(xctxt, child, mode, m_quietConflictWarnings, dtm);
            } finally {
                xctxt.popNamespaceContext();
            }
        }
        // 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 = m_stylesheetRoot.getDefaultRule();
                    break;
                case DTM.CDATA_SECTION_NODE:
                case DTM.TEXT_NODE:
                case DTM.ATTRIBUTE_NODE:
                    template = m_stylesheetRoot.getDefaultTextRule();
                    isDefaultTextRule = true;
                    break;
                case DTM.DOCUMENT_NODE:
                    template = m_stylesheetRoot.getDefaultRootRule();
                    break;
                default:
                    // No default rules for processing instructions and the like.
                    return false;
            }
        }
    }
    // the value directly to the result tree.
    try {
        pushElemTemplateElement(template);
        m_xcontext.pushCurrentNode(child);
        pushPairCurrentMatched(template, child);
        // Fix copy copy29 test.
        if (!isApplyImports) {
            DTMIterator cnl = new org.apache.xpath.NodeSetDTM(child, m_xcontext.getDTMManager());
            m_xcontext.pushContextNodeList(cnl);
        }
        if (isDefaultTextRule) {
            switch(nodeType) {
                case DTM.CDATA_SECTION_NODE:
                case DTM.TEXT_NODE:
                    ClonerToResultTree.cloneToResultTree(child, nodeType, dtm, getResultTreeHandler(), false);
                    break;
                case DTM.ATTRIBUTE_NODE:
                    dtm.dispatchCharactersEvents(child, getResultTreeHandler(), false);
                    break;
            }
        } else {
            // And execute the child templates.
            // 9/11/00: If template has been compiled, hand off to it
            // since much (most? all?) of the processing has been inlined.
            // (It would be nice if there was a single entry point that
            // worked for both... but the interpretive system works by
            // having the Tranformer execute the children, while the
            // compiled obviously has to run its own code. It's
            // also unclear that "execute" is really the right name for
            // that entry point.)
            m_xcontext.setSAXLocator(template);
            // m_xcontext.getVarStack().link();
            m_xcontext.getVarStack().link(template.m_frameSize);
            executeChildTemplates(template, true);
        }
    } catch (org.xml.sax.SAXException se) {
        throw new TransformerException(se);
    } finally {
        if (!isDefaultTextRule)
            m_xcontext.getVarStack().unlink();
        m_xcontext.popCurrentNode();
        if (!isApplyImports) {
            m_xcontext.popContextNodeList();
        }
        popCurrentMatched();
        popElemTemplateElement();
    }
    return true;
}

Example 29 with DTMIterator

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

the class TransformerImpl method transformNode.

/**
   * Process the source node to the output result, if the
   * processor supports the "http://xml.org/trax/features/dom/input"
   * feature.
   * %REVIEW% Do we need a Node version of this?
   * @param node  The input source node, which can be any valid DTM node.
   *
   * @throws TransformerException
   */
public void transformNode(int node) throws TransformerException {
    //dml
    setExtensionsTable(getStylesheet());
    // 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();
            }
            // System.out.println("Done with applyTemplateToNode - "+Thread.currentThread().getName());
            if (null != m_serializationHandler) {
                m_serializationHandler.endDocument();
            }
        } catch (Exception se) {
            // SAXSourceLocator
            while (se instanceof org.apache.xml.utils.WrappedRuntimeException) {
                Exception e = ((org.apache.xml.utils.WrappedRuntimeException) se).getException();
                if (null != e)
                    se = e;
            }
            if (null != m_serializationHandler) {
                try {
                    if (se instanceof org.xml.sax.SAXParseException)
                        m_serializationHandler.fatalError((org.xml.sax.SAXParseException) se);
                    else if (se instanceof TransformerException) {
                        TransformerException te = ((TransformerException) se);
                        SAXSourceLocator sl = new SAXSourceLocator(te.getLocator());
                        m_serializationHandler.fatalError(new org.xml.sax.SAXParseException(te.getMessage(), sl, te));
                    } else {
                        m_serializationHandler.fatalError(new org.xml.sax.SAXParseException(se.getMessage(), new SAXSourceLocator(), se));
                    }
                } catch (Exception e) {
                }
            }
            if (se instanceof TransformerException) {
                m_errorHandler.fatalError((TransformerException) se);
            } else if (se instanceof org.xml.sax.SAXParseException) {
                m_errorHandler.fatalError(new TransformerException(se.getMessage(), new SAXSourceLocator((org.xml.sax.SAXParseException) se), se));
            } else {
                m_errorHandler.fatalError(new TransformerException(se));
            }
        } finally {
            this.reset();
        }
    }
}

Example 30 with DTMIterator

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

the class FuncKey method execute.

/**
   * Execute the function.  The function must return
   * a valid object.
   * @param xctxt The current execution context.
   * @return A valid XObject.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    // TransformerImpl transformer = (TransformerImpl)xctxt;
    TransformerImpl transformer = (TransformerImpl) xctxt.getOwnerObject();
    XNodeSet nodes = null;
    int context = xctxt.getCurrentNode();
    DTM dtm = xctxt.getDTM(context);
    int docContext = dtm.getDocumentRoot(context);
    if (DTM.NULL == docContext) {
    // path.error(context, XPATHErrorResources.ER_CONTEXT_HAS_NO_OWNERDOC); //"context does not have an owner document!");
    }
    String xkeyname = getArg0().execute(xctxt).str();
    QName keyname = new QName(xkeyname, xctxt.getNamespaceContext());
    XObject arg = getArg1().execute(xctxt);
    boolean argIsNodeSetDTM = (XObject.CLASS_NODESET == arg.getType());
    KeyManager kmgr = transformer.getKeyManager();
    // Don't bother with nodeset logic if the thing is only one node.
    if (argIsNodeSetDTM) {
        XNodeSet ns = (XNodeSet) arg;
        ns.setShouldCacheNodes(true);
        int len = ns.getLength();
        if (len <= 1)
            argIsNodeSetDTM = false;
    }
    if (argIsNodeSetDTM) {
        Hashtable usedrefs = null;
        DTMIterator ni = arg.iter();
        int pos;
        UnionPathIterator upi = new UnionPathIterator();
        upi.exprSetParent(this);
        while (DTM.NULL != (pos = ni.nextNode())) {
            dtm = xctxt.getDTM(pos);
            XMLString ref = dtm.getStringValue(pos);
            if (null == ref)
                continue;
            if (null == usedrefs)
                usedrefs = new Hashtable();
            if (usedrefs.get(ref) != null) {
                // We already have 'em.
                continue;
            } else {
                // ISTRUE being used as a dummy value.
                usedrefs.put(ref, ISTRUE);
            }
            XNodeSet nl = kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref, xctxt.getNamespaceContext());
            nl.setRoot(xctxt.getCurrentNode(), xctxt);
            //        try
            //        {
            upi.addIterator(nl);
        //        }
        //        catch(CloneNotSupportedException cnse)
        //        {
        //          // will never happen.
        //        }
        //mnodeset.addNodesInDocOrder(nl, xctxt); needed??
        }
        int current = xctxt.getCurrentNode();
        upi.setRoot(current, xctxt);
        nodes = new XNodeSet(upi);
    } else {
        XMLString ref = arg.xstr();
        nodes = kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref, xctxt.getNamespaceContext());
        nodes.setRoot(xctxt.getCurrentNode(), xctxt);
    }
    return nodes;
}