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

Example 16 with XObject

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

the class VariableStack method getLocalVariable.

/**
   * Get a local variable or parameter in the current stack frame.
   *
   *
   * @param xctxt The XPath context, which must be passed in order to
   * lazy evaluate variables.
   *
   * @param index Local variable index relative to the current stack
   * frame bottom.
   *
   * @return The value of the variable.
   *
   * @throws TransformerException
   */
public XObject getLocalVariable(XPathContext xctxt, int index) throws TransformerException {
    index += _currentFrameBottom;
    XObject val = _stackFrames[index];
    if (null == val)
        throw new TransformerException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_VARIABLE_ACCESSED_BEFORE_BIND, null), xctxt.getSAXLocator());
    // Lazy execution of variables.
    if (val.getType() == XObject.CLASS_UNRESOLVEDVARIABLE)
        return (_stackFrames[index] = val.execute(xctxt));
    return val;
}

Example 17 with XObject

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

the class XPath method getMatchScore.

/**
   * Get the match score of the given node.
   *
   * @param xctxt XPath runtime context.
   * @param context The current source tree context node.
   * 
   * @return score, one of {@link #MATCH_SCORE_NODETEST},
   * {@link #MATCH_SCORE_NONE}, {@link #MATCH_SCORE_OTHER}, 
   * or {@link #MATCH_SCORE_QNAME}.
   *
   * @throws javax.xml.transform.TransformerException
   */
public double getMatchScore(XPathContext xctxt, int context) throws javax.xml.transform.TransformerException {
    xctxt.pushCurrentNode(context);
    xctxt.pushCurrentExpressionNode(context);
    try {
        XObject score = m_mainExp.execute(xctxt);
        if (DEBUG_MATCHES) {
            DTM dtm = xctxt.getDTM(context);
            System.out.println("score: " + score.num() + " for " + dtm.getNodeName(context) + " for xpath " + this.getPatternString());
        }
        return score.num();
    } finally {
        xctxt.popCurrentNode();
        xctxt.popCurrentExpressionNode();
    }
// return XPath.MATCH_SCORE_NONE;
}

Example 18 with XObject

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

the class XPath method execute.

/**
   * Given an expression and a context, evaluate the XPath
   * and return the result.
   * 
   * @param xctxt The execution context.
   * @param contextNode The node that "." expresses.
   * @param namespaceContext The context in which namespaces in the
   * XPath are supposed to be expanded.
   * 
   * @throws TransformerException thrown if the active ProblemListener decides
   * the error condition is severe enough to halt processing.
   *
   * @throws javax.xml.transform.TransformerException
   * @xsl.usage experimental
   */
public XObject execute(XPathContext xctxt, int contextNode, PrefixResolver namespaceContext) throws javax.xml.transform.TransformerException {
    xctxt.pushNamespaceContext(namespaceContext);
    xctxt.pushCurrentNodeAndExpression(contextNode, contextNode);
    XObject xobj = null;
    try {
        xobj = m_mainExp.execute(xctxt);
    } catch (TransformerException te) {
        te.setLocator(this.getLocator());
        ErrorListener el = xctxt.getErrorListener();
        if (// defensive, should never happen.
        null != el) {
            el.error(te);
        } else
            throw te;
    } catch (Exception e) {
        while (e instanceof org.apache.xml.utils.WrappedRuntimeException) {
            e = ((org.apache.xml.utils.WrappedRuntimeException) e).getException();
        }
        // e.printStackTrace();
        String msg = e.getMessage();
        if (msg == null || msg.length() == 0) {
            msg = XSLMessages.createXPATHMessage(XPATHErrorResources.ER_XPATH_ERROR, null);
        }
        TransformerException te = new TransformerException(msg, getLocator(), e);
        ErrorListener el = xctxt.getErrorListener();
        // te.printStackTrace();
        if (// defensive, should never happen.
        null != el) {
            el.fatalError(te);
        } else
            throw te;
    } finally {
        xctxt.popNamespaceContext();
        xctxt.popCurrentNodeAndExpression();
    }
    return xobj;
}

Example 19 with XObject

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

the class JAXPExtensionsProvider method extFunction.

/**
     * Execute the extension function.
     */
public Object extFunction(String ns, String funcName, Vector argVec, Object methodKey) throws javax.xml.transform.TransformerException {
    try {
        if (funcName == null) {
            String fmsg = XSLMessages.createXPATHMessage(XPATHErrorResources.ER_ARG_CANNOT_BE_NULL, new Object[] { "Function Name" });
            throw new NullPointerException(fmsg);
        }
        //Find the XPathFunction corresponding to namespace and funcName
        javax.xml.namespace.QName myQName = new QName(ns, funcName);
        // throw XPathFunctionException
        if (extensionInvocationDisabled) {
            String fmsg = XSLMessages.createXPATHMessage(XPATHErrorResources.ER_EXTENSION_FUNCTION_CANNOT_BE_INVOKED, new Object[] { myQName.toString() });
            throw new XPathFunctionException(fmsg);
        }
        // Assuming user is passing all the needed parameters ( including
        // default values )
        int arity = argVec.size();
        javax.xml.xpath.XPathFunction xpathFunction = resolver.resolveFunction(myQName, arity);
        // not using methodKey
        ArrayList argList = new ArrayList(arity);
        for (int i = 0; i < arity; i++) {
            Object argument = argVec.elementAt(i);
            // Explicitly getting NodeList by using nodelist()
            if (argument instanceof XNodeSet) {
                argList.add(i, ((XNodeSet) argument).nodelist());
            } else if (argument instanceof XObject) {
                Object passedArgument = ((XObject) argument).object();
                argList.add(i, passedArgument);
            } else {
                argList.add(i, argument);
            }
        }
        return (xpathFunction.evaluate(argList));
    } catch (XPathFunctionException xfe) {
        // further execution by throwing WrappedRuntimeException 
        throw new org.apache.xml.utils.WrappedRuntimeException(xfe);
    } catch (Exception e) {
        throw new javax.xml.transform.TransformerException(e);
    }
}

Example 20 with XObject

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

the class JAXPExtensionsProvider method extFunction.

/**
     * Execute the extension function.
     */
public Object extFunction(FuncExtFunction extFunction, Vector argVec) throws javax.xml.transform.TransformerException {
    try {
        String namespace = extFunction.getNamespace();
        String functionName = extFunction.getFunctionName();
        int arity = extFunction.getArgCount();
        javax.xml.namespace.QName myQName = new javax.xml.namespace.QName(namespace, functionName);
        // throw XPathFunctionException
        if (extensionInvocationDisabled) {
            String fmsg = XSLMessages.createXPATHMessage(XPATHErrorResources.ER_EXTENSION_FUNCTION_CANNOT_BE_INVOKED, new Object[] { myQName.toString() });
            throw new XPathFunctionException(fmsg);
        }
        XPathFunction xpathFunction = resolver.resolveFunction(myQName, arity);
        ArrayList argList = new ArrayList(arity);
        for (int i = 0; i < arity; i++) {
            Object argument = argVec.elementAt(i);
            // Explicitly getting NodeList by using nodelist()
            if (argument instanceof XNodeSet) {
                argList.add(i, ((XNodeSet) argument).nodelist());
            } else if (argument instanceof XObject) {
                Object passedArgument = ((XObject) argument).object();
                argList.add(i, passedArgument);
            } else {
                argList.add(i, argument);
            }
        }
        return (xpathFunction.evaluate(argList));
    } catch (XPathFunctionException xfe) {
        // further execution by throwing WrappedRuntimeException
        throw new org.apache.xml.utils.WrappedRuntimeException(xfe);
    } catch (Exception e) {
        throw new javax.xml.transform.TransformerException(e);
    }
}