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

Example 36 with DTMIterator

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

the class ElemForEach 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);
    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);
        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);
            // each of them.
            for (ElemTemplateElement t = this.m_firstChild; t != null; t = t.m_nextSibling) {
                xctxt.setSAXLocator(t);
                transformer.setCurrentElement(t);
                t.execute(transformer);
            }
            // 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 {
        xctxt.popSAXLocator();
        xctxt.popContextNodeList();
        transformer.popElemTemplateElement();
        xctxt.popCurrentExpressionNode();
        xctxt.popCurrentNode();
        sourceNodes.detach();
    }
}

Example 37 with DTMIterator

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

the class XObjectFactory method create.

/**
   * Create the right XObject based on the type of the object passed.
   * This function <emph>can</emph> make an XObject that exposes DOM Nodes, NodeLists, and 
   * NodeIterators to the XSLT stylesheet as node-sets.
   *
   * @param val The java object which this object will wrap.
   * @param xctxt The XPath context.
   *
   * @return the right XObject based on the type of the object passed.
   */
public static XObject create(Object val, XPathContext xctxt) {
    XObject result;
    if (val instanceof XObject) {
        result = (XObject) val;
    } else if (val instanceof String) {
        result = new XString((String) val);
    } else if (val instanceof Boolean) {
        result = new XBoolean((Boolean) val);
    } else if (val instanceof Number) {
        result = new XNumber(((Number) val));
    } else if (val instanceof DTM) {
        DTM dtm = (DTM) val;
        try {
            int dtmRoot = dtm.getDocument();
            DTMAxisIterator iter = dtm.getAxisIterator(Axis.SELF);
            iter.setStartNode(dtmRoot);
            DTMIterator iterator = new OneStepIterator(iter, Axis.SELF);
            iterator.setRoot(dtmRoot, xctxt);
            result = new XNodeSet(iterator);
        } catch (Exception ex) {
            throw new org.apache.xml.utils.WrappedRuntimeException(ex);
        }
    } else if (val instanceof DTMAxisIterator) {
        DTMAxisIterator iter = (DTMAxisIterator) val;
        try {
            DTMIterator iterator = new OneStepIterator(iter, Axis.SELF);
            iterator.setRoot(iter.getStartNode(), xctxt);
            result = new XNodeSet(iterator);
        } catch (Exception ex) {
            throw new org.apache.xml.utils.WrappedRuntimeException(ex);
        }
    } else if (val instanceof DTMIterator) {
        result = new XNodeSet((DTMIterator) val);
    } else // might also implement a Node!
    if (val instanceof org.w3c.dom.Node) {
        result = new XNodeSetForDOM((org.w3c.dom.Node) val, xctxt);
    } else // also implement NodeList.
    if (val instanceof org.w3c.dom.NodeList) {
        result = new XNodeSetForDOM((org.w3c.dom.NodeList) val, xctxt);
    } else if (val instanceof org.w3c.dom.traversal.NodeIterator) {
        result = new XNodeSetForDOM((org.w3c.dom.traversal.NodeIterator) val, xctxt);
    } else {
        result = new XObject(val);
    }
    return result;
}

Example 38 with DTMIterator

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

the class UnionPathIterator method setRoot.

/**
   * Initialize the context values for this expression 
   * after it is cloned.
   *
   * @param context The XPath runtime context for this 
   * transformation.
   */
public void setRoot(int context, Object environment) {
    super.setRoot(context, environment);
    try {
        if (null != m_exprs) {
            int n = m_exprs.length;
            DTMIterator[] newIters = new DTMIterator[n];
            for (int i = 0; i < n; i++) {
                DTMIterator iter = m_exprs[i].asIterator(m_execContext, context);
                newIters[i] = iter;
                iter.nextNode();
            }
            m_iterators = newIters;
        }
    } catch (Exception e) {
        throw new org.apache.xml.utils.WrappedRuntimeException(e);
    }
}

Example 39 with DTMIterator

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

the class FunctionPattern method execute.

/**
   * Test a node to see if it matches the given node test.
   *
   * @param xctxt XPath runtime context.
   *
   * @return {@link org.apache.xpath.patterns.NodeTest#SCORE_NODETEST},
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_NONE},
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_NSWILD},
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_QNAME}, or
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_OTHER}.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt, int context, DTM dtm, int expType) throws javax.xml.transform.TransformerException {
    DTMIterator nl = m_functionExpr.asIterator(xctxt, context);
    XNumber score = SCORE_NONE;
    if (null != nl) {
        int n;
        while (DTM.NULL != (n = nl.nextNode())) {
            score = (n == context) ? SCORE_OTHER : SCORE_NONE;
            if (score == SCORE_OTHER) {
                context = n;
                break;
            }
        }
        nl.detach();
    }
    return score;
}

Example 40 with DTMIterator

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

the class FunctionPattern method execute.

/**
   * Test a node to see if it matches the given node test.
   *
   * @param xctxt XPath runtime context.
   *
   * @return {@link org.apache.xpath.patterns.NodeTest#SCORE_NODETEST},
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_NONE},
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_NSWILD},
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_QNAME}, or
   *         {@link org.apache.xpath.patterns.NodeTest#SCORE_OTHER}.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt, int context) throws javax.xml.transform.TransformerException {
    DTMIterator nl = m_functionExpr.asIterator(xctxt, context);
    XNumber score = SCORE_NONE;
    if (null != nl) {
        int n;
        while (DTM.NULL != (n = nl.nextNode())) {
            score = (n == context) ? SCORE_OTHER : SCORE_NONE;
            if (score == SCORE_OTHER) {
                context = n;
                break;
            }
        }
    // nl.detach();
    }
    nl.detach();
    return score;
}