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

Example 6 with XPathContext

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

the class ElemNumber method getLocale.

// end getMatchingAncestors method
/**
   * Get the locale we should be using.
   *
   * @param transformer non-null reference to the the current transform-time state.
   * @param contextNode The node that "." expresses.
   *
   * @return The locale to use. May be specified by "lang" attribute,
   * but if not, use default locale on the system. 
   *
   * @throws TransformerException
   */
Locale getLocale(TransformerImpl transformer, int contextNode) throws TransformerException {
    Locale locale = null;
    if (null != m_lang_avt) {
        XPathContext xctxt = transformer.getXPathContext();
        String langValue = m_lang_avt.evaluate(xctxt, contextNode, this);
        if (null != langValue) {
            // Not really sure what to do about the country code, so I use the
            // default from the system.
            // TODO: fix xml:lang handling.
            locale = new Locale(langValue.toUpperCase(), "");
            //Locale.getDefault().getDisplayCountry());
            if (null == locale) {
                transformer.getMsgMgr().warn(this, null, xctxt.getDTM(contextNode).getNode(contextNode), XSLTErrorResources.WG_LOCALE_NOT_FOUND, //"Warning: Could not find locale for xml:lang="+langValue);
                new Object[] { langValue });
                locale = Locale.getDefault();
            }
        }
    } else {
        locale = Locale.getDefault();
    }
    return locale;
}

Example 7 with XPathContext

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

the class ElemExsltFunction method execute.

public void execute(TransformerImpl transformer, XObject[] args) throws TransformerException {
    XPathContext xctxt = transformer.getXPathContext();
    VariableStack vars = xctxt.getVarStack();
    // Increment the frame bottom of the variable stack by the
    // frame size
    int thisFrame = vars.getStackFrame();
    int nextFrame = vars.link(m_frameSize);
    if (m_inArgsSize < args.length) {
        throw new TransformerException("function called with too many args");
    }
    // have to clear the section of the stack frame that has params.
    if (m_inArgsSize > 0) {
        vars.clearLocalSlots(0, m_inArgsSize);
        if (args.length > 0) {
            vars.setStackFrame(thisFrame);
            NodeList children = this.getChildNodes();
            for (int i = 0; i < args.length; i++) {
                Node child = children.item(i);
                if (children.item(i) instanceof ElemParam) {
                    ElemParam param = (ElemParam) children.item(i);
                    vars.setLocalVariable(param.getIndex(), args[i], nextFrame);
                }
            }
            vars.setStackFrame(nextFrame);
        }
    }
    //  Removed ElemTemplate 'push' and 'pop' of RTFContext, in order to avoid losing the RTF context 
    //  before a value can be returned. ElemExsltFunction operates in the scope of the template that called 
    //  the function.
    //  xctxt.pushRTFContext();
    vars.setStackFrame(nextFrame);
    transformer.executeChildTemplates(this, true);
    // Reset the stack frame after the function call
    vars.unlink(thisFrame);
// Following ElemTemplate 'pop' removed -- see above.
// xctxt.popRTFContext(); 
}

Example 8 with XPathContext

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

the class ElemIf method execute.

/**
   * Conditionally execute a sub-template.
   * The expression is evaluated and the resulting object is converted
   * to a boolean as if by a call to the boolean function. If the result
   * is true, then the content template is instantiated; otherwise, nothing
   * is created.
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException
   */
public void execute(TransformerImpl transformer) throws TransformerException {
    XPathContext xctxt = transformer.getXPathContext();
    int sourceNode = xctxt.getCurrentNode();
    if (m_test.bool(xctxt, sourceNode, this)) {
        transformer.executeChildTemplates(this, true);
    }
}

Example 9 with XPathContext

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

the class ElemLiteralResult method execute.

/**
   * Copy a Literal Result Element into the Result tree, copy the
   * non-excluded namespace attributes, copy the attributes not
   * of the XSLT namespace, and execute the children of the LRE.
   * @see <a href="http://www.w3.org/TR/xslt#literal-result-element">literal-result-element in XSLT Specification</a>
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException
   */
public void execute(TransformerImpl transformer) throws TransformerException {
    SerializationHandler rhandler = transformer.getSerializationHandler();
    try {
        // JJK Bugzilla 3464, test namespace85 -- make sure LRE's
        // namespace is asserted even if default, since xsl:element
        // may have changed the context.
        rhandler.startPrefixMapping(getPrefix(), getNamespace());
        // Add namespace declarations.
        executeNSDecls(transformer);
        rhandler.startElement(getNamespace(), getLocalName(), getRawName());
    } catch (SAXException se) {
        throw new TransformerException(se);
    }
    /*
         * If we make it to here we have done a successful startElement()
         * we will do an endElement() call for balance, no matter what happens
         * in the middle.  
         */
    // tException remembers if we had an exception "in the middle"
    TransformerException tException = null;
    try {
        // Process any possible attributes from xsl:use-attribute-sets first
        super.execute(transformer);
        // Process the list of avts next
        if (null != m_avts) {
            int nAttrs = m_avts.size();
            for (int i = (nAttrs - 1); i >= 0; i--) {
                AVT avt = (AVT) m_avts.get(i);
                XPathContext xctxt = transformer.getXPathContext();
                int sourceNode = xctxt.getCurrentNode();
                String stringedValue = avt.evaluate(xctxt, sourceNode, this);
                if (null != stringedValue) {
                    // Important Note: I'm not going to check for excluded namespace 
                    // prefixes here.  It seems like it's too expensive, and I'm not 
                    // even sure this is right.  But I could be wrong, so this needs 
                    // to be tested against other implementations.
                    rhandler.addAttribute(avt.getURI(), avt.getName(), avt.getRawName(), "CDATA", stringedValue, false);
                }
            }
        // end for
        }
        // Now process all the elements in this subtree
        // TODO: Process m_extensionElementPrefixes && m_attributeSetsNames
        transformer.executeChildTemplates(this, true);
    } catch (TransformerException te) {
        // thrown in finally to prevent original exception consumed by subsequent exceptions
        tException = te;
    } catch (SAXException se) {
        tException = new TransformerException(se);
    }
    try {
        /* we need to do this endElement() to balance the
             * successful startElement() call even if 
             * there was an exception in the middle.
             * Otherwise an exception in the middle could cause a system to hang.
             */
        rhandler.endElement(getNamespace(), getLocalName(), getRawName());
    } catch (SAXException se) {
        /* we did call endElement(). If thee was an exception
             * in the middle throw that one, otherwise if there
             * was an exception from endElement() throw that one.
             */
        if (tException != null)
            throw tException;
        else
            throw new TransformerException(se);
    }
    /* If an exception was thrown in the middle but not with startElement() or
         * or endElement() then its time to let it percolate.
         */
    if (tException != null)
        throw tException;
    unexecuteNSDecls(transformer);
    // JJK Bugzilla 3464, test namespace85 -- balance explicit start.
    try {
        rhandler.endPrefixMapping(getPrefix());
    } catch (SAXException se) {
        throw new TransformerException(se);
    }
}

Example 10 with XPathContext

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

the class ElemVariable method getValue.

/**
   * Get the XObject representation of the variable.
   *
   * @param transformer non-null reference to the the current transform-time state.
   * @param sourceNode non-null reference to the <a href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>.
   *
   * @return the XObject representation of the variable.
   *
   * @throws TransformerException
   */
public XObject getValue(TransformerImpl transformer, int sourceNode) throws TransformerException {
    XObject var;
    XPathContext xctxt = transformer.getXPathContext();
    xctxt.pushCurrentNode(sourceNode);
    try {
        if (null != m_selectPattern) {
            var = m_selectPattern.execute(xctxt, sourceNode, this);
            var.allowDetachToRelease(false);
        } else if (null == getFirstChildElem()) {
            var = XString.EMPTYSTRING;
        } else {
            // Use result tree fragment.
            // Global variables may be deferred (see XUnresolvedVariable) and hence
            // need to be assigned to a different set of DTMs than local variables
            // so they aren't popped off the stack on return from a template.
            int df;
            ////// problem in parameters. Needs more study.
            try {
                //////////xctxt.getVarStack().link(0);
                if (// Global variable
                m_parentNode instanceof Stylesheet)
                    df = transformer.transformToGlobalRTF(this);
                else
                    df = transformer.transformToRTF(this);
            } finally {
            //////////////xctxt.getVarStack().unlink(); 
            }
            var = new XRTreeFrag(df, xctxt, this);
        }
    } finally {
        xctxt.popCurrentNode();
    }
    return var;
}