Examples with XObject org.apache.xpath.objects.XObject used on opensource projects

Example 91 with XObject

use of org.apache.xpath.objects.XObject in project robovm by robovm.

the class UnionChildIterator method acceptNode.

/**
   * Test whether a specified node is visible in the logical view of a
   * TreeWalker or NodeIterator. This function will be called by the
   * implementation of TreeWalker and NodeIterator; it is not intended to
   * be called directly from user code.
   * @param n  The node to check to see if it passes the filter or not.
   * @return  a constant to determine whether the node is accepted,
   *   rejected, or skipped, as defined  above .
   */
public short acceptNode(int n) {
    XPathContext xctxt = getXPathContext();
    try {
        xctxt.pushCurrentNode(n);
        for (int i = 0; i < m_nodeTests.length; i++) {
            PredicatedNodeTest pnt = m_nodeTests[i];
            XObject score = pnt.execute(xctxt, n);
            if (score != NodeTest.SCORE_NONE) {
                // Note that we are assuming there are no positional predicates!
                if (pnt.getPredicateCount() > 0) {
                    if (pnt.executePredicates(n, xctxt))
                        return DTMIterator.FILTER_ACCEPT;
                } else
                    return DTMIterator.FILTER_ACCEPT;
            }
        }
    } catch (javax.xml.transform.TransformerException se) {
        // TODO: Fix this.
        throw new RuntimeException(se.getMessage());
    } finally {
        xctxt.popCurrentNode();
    }
    return DTMIterator.FILTER_SKIP;
}

Example 92 with XObject

use of org.apache.xpath.objects.XObject in project robovm by robovm.

the class StepPattern method executePredicates.

/**
   * Execute the predicates on this step to determine if the current node 
   * should be filtered or accepted.
   *
   * @param xctxt The XPath runtime context.
   * @param dtm The DTM of the current node.
   * @param currentNode The current node context.
   *
   * @return true if the node should be accepted, false otherwise.
   *
   * @throws javax.xml.transform.TransformerException
   */
protected final boolean executePredicates(XPathContext xctxt, DTM dtm, int currentNode) throws javax.xml.transform.TransformerException {
    boolean result = true;
    boolean positionAlreadySeen = false;
    int n = getPredicateCount();
    try {
        xctxt.pushSubContextList(this);
        for (int i = 0; i < n; i++) {
            xctxt.pushPredicatePos(i);
            try {
                XObject pred = m_predicates[i].execute(xctxt);
                try {
                    if (XObject.CLASS_NUMBER == pred.getType()) {
                        int pos = (int) pred.num();
                        if (positionAlreadySeen) {
                            result = (pos == 1);
                            break;
                        } else {
                            positionAlreadySeen = true;
                            if (!checkProximityPosition(xctxt, i, dtm, currentNode, pos)) {
                                result = false;
                                break;
                            }
                        }
                    } else if (!pred.boolWithSideEffects()) {
                        result = false;
                        break;
                    }
                } finally {
                    pred.detach();
                }
            } finally {
                xctxt.popPredicatePos();
            }
        }
    } finally {
        xctxt.popSubContextList();
    }
    return result;
}

Example 93 with XObject

use of org.apache.xpath.objects.XObject in project robovm by robovm.

the class StepPattern method execute.

/**
   * Execute an expression in the XPath runtime context, and return the
   * result of the expression.
   *
   *
   * @param xctxt The XPath runtime context.
   * @param currentNode The currentNode.
   * @param dtm The DTM of the current node.
   * @param expType The expanded type ID of the current node.
   *
   * @return The result of the expression in the form of a <code>XObject</code>.
   *
   * @throws javax.xml.transform.TransformerException if a runtime exception
   *         occurs.
   */
public XObject execute(XPathContext xctxt, int currentNode, DTM dtm, int expType) throws javax.xml.transform.TransformerException {
    if (m_whatToShow == NodeTest.SHOW_BYFUNCTION) {
        if (null != m_relativePathPattern) {
            return m_relativePathPattern.execute(xctxt);
        } else
            return NodeTest.SCORE_NONE;
    }
    XObject score;
    score = super.execute(xctxt, currentNode, dtm, expType);
    if (score == NodeTest.SCORE_NONE)
        return NodeTest.SCORE_NONE;
    if (getPredicateCount() != 0) {
        if (!executePredicates(xctxt, dtm, currentNode))
            return NodeTest.SCORE_NONE;
    }
    if (null != m_relativePathPattern)
        return m_relativePathPattern.executeRelativePathPattern(xctxt, dtm, currentNode);
    return score;
}

Example 94 with XObject

use of org.apache.xpath.objects.XObject in project robovm by robovm.

the class FuncQname 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 {
    int context = getArg0AsNode(xctxt);
    XObject val;
    if (DTM.NULL != context) {
        DTM dtm = xctxt.getDTM(context);
        String qname = dtm.getNodeNameX(context);
        val = (null == qname) ? XString.EMPTYSTRING : new XString(qname);
    } else {
        val = XString.EMPTYSTRING;
    }
    return val;
}

Example 95 with XObject

use of org.apache.xpath.objects.XObject in project robovm by robovm.

the class FuncRound 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 {
    final XObject obj = m_arg0.execute(xctxt);
    final double val = obj.num();
    if (val >= -0.5 && val < 0)
        return new XNumber(-0.0);
    if (val == 0.0)
        return new XNumber(val);
    return new XNumber(java.lang.Math.floor(val + 0.5));
}