Examples with XPathContext org.apache.xpath.XPathContext used on opensource projects

Example 71 with XPathContext

use of org.apache.xpath.XPathContext in project robovm by robovm.

the class PredicatedNodeTest method acceptNode.

//=============== NodeFilter Implementation ===============
/**
   *  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 = m_lpi.getXPathContext();
    try {
        xctxt.pushCurrentNode(n);
        XObject score = execute(xctxt, n);
        // System.out.println("\n::acceptNode - score: "+score.num()+"::");
        if (score != NodeTest.SCORE_NONE) {
            if (getPredicateCount() > 0) {
                countProximityPosition(0);
                if (!executePredicates(n, xctxt))
                    return DTMIterator.FILTER_SKIP;
            }
            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 72 with XPathContext

use of org.apache.xpath.XPathContext 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 73 with XPathContext

use of org.apache.xpath.XPathContext in project nokogiri by sparklemotion.

the class XmlXpathContext method getXPathContext.

private XPathContext getXPathContext(final NokogiriXPathFunctionResolver fnResolver) {
    Node doc = context.getNode().getOwnerDocument();
    if (doc == null)
        doc = context.getNode();
    XPathContext xpathContext = (XPathContext) doc.getUserData(XPATH_CONTEXT);
    if (xpathContext == null) {
        xpathContext = newXPathContext(fnResolver);
        if (variableResolver == null) {
            // NOTE: only caching without variables - could be improved by more sophisticated caching
            doc.setUserData(XPATH_CONTEXT, xpathContext, null);
        }
    } else {
        Object owner = xpathContext.getOwnerObject();
        if ((owner == null && fnResolver == null) || (owner instanceof JAXPExtensionsProvider && ((JAXPExtensionsProvider) owner).hasSameResolver(fnResolver))) {
            // can be re-used assuming it has the same variable-stack (for now only cached if no variables)
            if (variableResolver == null)
                return xpathContext;
        }
        // otherwise we can not use the cached xpath-context
        xpathContext = newXPathContext(fnResolver);
    }
    if (variableResolver != null) {
        xpathContext.setVarStack(new JAXPVariableStack(variableResolver));
    }
    return xpathContext;
}