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

Example 46 with XPathContext

use of org.apache.xpath.XPathContext in project j2objc by google.

the class ElemWithParam 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
            int df = transformer.transformToRTF(this);
            var = new XRTreeFrag(df, xctxt, this);
        }
    } finally {
        xctxt.popCurrentNode();
    }
    return var;
}

Example 47 with XPathContext

use of org.apache.xpath.XPathContext in project j2objc by google.

the class FuncFormatNumb 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 {
    // A bit of an ugly hack to get our context.
    ElemTemplateElement templElem = (ElemTemplateElement) xctxt.getNamespaceContext();
    StylesheetRoot ss = templElem.getStylesheetRoot();
    java.text.DecimalFormat formatter = null;
    java.text.DecimalFormatSymbols dfs = null;
    double num = getArg0().execute(xctxt).num();
    String patternStr = getArg1().execute(xctxt).str();
    // TODO: what should be the behavior here??
    if (patternStr.indexOf(0x00A4) > 0)
        // currency sign not allowed
        ss.error(XSLTErrorResources.ER_CURRENCY_SIGN_ILLEGAL);
    // decimal-format declared in the stylesheet!(xsl:decimal-format
    try {
        Expression arg2Expr = getArg2();
        if (null != arg2Expr) {
            String dfName = arg2Expr.execute(xctxt).str();
            QName qname = new QName(dfName, xctxt.getNamespaceContext());
            dfs = ss.getDecimalFormatComposed(qname);
            if (null == dfs) {
                warn(xctxt, XSLTErrorResources.WG_NO_DECIMALFORMAT_DECLARATION, //"not found!!!
                new Object[] { dfName });
            //formatter = new java.text.DecimalFormat(patternStr);
            } else {
                //formatter = new java.text.DecimalFormat(patternStr, dfs);
                formatter = new java.text.DecimalFormat();
                formatter.setDecimalFormatSymbols(dfs);
                formatter.applyLocalizedPattern(patternStr);
            }
        }
        //else
        if (null == formatter) {
            // look for a possible default decimal-format
            dfs = ss.getDecimalFormatComposed(new QName(""));
            if (dfs != null) {
                formatter = new java.text.DecimalFormat();
                formatter.setDecimalFormatSymbols(dfs);
                formatter.applyLocalizedPattern(patternStr);
            } else {
                dfs = new java.text.DecimalFormatSymbols(java.util.Locale.US);
                dfs.setInfinity(Constants.ATTRVAL_INFINITY);
                dfs.setNaN(Constants.ATTRVAL_NAN);
                formatter = new java.text.DecimalFormat();
                formatter.setDecimalFormatSymbols(dfs);
                if (null != patternStr)
                    formatter.applyLocalizedPattern(patternStr);
            }
        }
        return new XString(formatter.format(num));
    } catch (Exception iae) {
        templElem.error(XSLTErrorResources.ER_MALFORMED_FORMAT_STRING, new Object[] { patternStr });
        return XString.EMPTYSTRING;
    //throw new XSLProcessorException(iae);
    }
}

Example 48 with XPathContext

use of org.apache.xpath.XPathContext in project j2objc by google.

the class KeyTable method getRefsTable.

/**
   * @return lazy initialized refs table associating evaluation of key function
   *         with a XNodeSet
   */
private Hashtable getRefsTable() {
    if (m_refsTable == null) {
        // initial capacity set to a prime number to improve hash performance
        m_refsTable = new Hashtable(89);
        KeyIterator ki = (KeyIterator) (m_keyNodes).getContainedIter();
        XPathContext xctxt = ki.getXPathContext();
        Vector keyDecls = getKeyDeclarations();
        int nKeyDecls = keyDecls.size();
        int currentNode;
        m_keyNodes.reset();
        while (DTM.NULL != (currentNode = m_keyNodes.nextNode())) {
            try {
                for (int keyDeclIdx = 0; keyDeclIdx < nKeyDecls; keyDeclIdx++) {
                    KeyDeclaration keyDeclaration = (KeyDeclaration) keyDecls.elementAt(keyDeclIdx);
                    XObject xuse = keyDeclaration.getUse().execute(xctxt, currentNode, ki.getPrefixResolver());
                    if (xuse.getType() != xuse.CLASS_NODESET) {
                        XMLString exprResult = xuse.xstr();
                        addValueInRefsTable(xctxt, exprResult, currentNode);
                    } else {
                        DTMIterator i = ((XNodeSet) xuse).iterRaw();
                        int currentNodeInUseClause;
                        while (DTM.NULL != (currentNodeInUseClause = i.nextNode())) {
                            DTM dtm = xctxt.getDTM(currentNodeInUseClause);
                            XMLString exprResult = dtm.getStringValue(currentNodeInUseClause);
                            addValueInRefsTable(xctxt, exprResult, currentNode);
                        }
                    }
                }
            } catch (TransformerException te) {
                throw new WrappedRuntimeException(te);
            }
        }
    }
    return m_refsTable;
}

Example 49 with XPathContext

use of org.apache.xpath.XPathContext in project j2objc by google.

the class KeyTable method getNodeSetDTMByKey.

/**
   * Given a valid element key, return the corresponding node list.
   * 
   * @param name The name of the key, which must match the 'name' attribute on xsl:key.
   * @param ref The value that must match the value found by the 'match' attribute on xsl:key.
   * @return a set of nodes referenced by the key named <CODE>name</CODE> and the reference <CODE>ref</CODE>. If no node is referenced by this key, an empty node set is returned.
   */
public XNodeSet getNodeSetDTMByKey(QName name, XMLString ref) {
    XNodeSet refNodes = (XNodeSet) getRefsTable().get(ref);
    // clone wiht reset the node set
    try {
        if (refNodes != null) {
            refNodes = (XNodeSet) refNodes.cloneWithReset();
        }
    } catch (CloneNotSupportedException e) {
        refNodes = null;
    }
    if (refNodes == null) {
        //  create an empty XNodeSet
        KeyIterator ki = (KeyIterator) (m_keyNodes).getContainedIter();
        XPathContext xctxt = ki.getXPathContext();
        refNodes = new XNodeSet(xctxt.getDTMManager()) {

            public void setRoot(int nodeHandle, Object environment) {
            // Root cannot be set on non-iterated node sets. Ignore it.
            }
        };
        refNodes.reset();
    }
    return refNodes;
}

Example 50 with XPathContext

use of org.apache.xpath.XPathContext in project j2objc by google.

the class ElemApplyTemplates 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);
    VariableStack vars = xctxt.getVarStack();
    int nParams = getParamElemCount();
    int thisframe = vars.getStackFrame();
    boolean pushContextNodeListFlag = false;
    try {
        xctxt.pushCurrentNode(DTM.NULL);
        xctxt.pushCurrentExpressionNode(DTM.NULL);
        xctxt.pushSAXLocatorNull();
        transformer.pushElemTemplateElement(null);
        final Vector keys = (m_sortElems == null) ? null : transformer.processSortKeys(this, sourceNode);
        // Sort if we need to.
        if (null != keys)
            sourceNodes = sortNodes(xctxt, keys, sourceNodes);
        final SerializationHandler rth = transformer.getSerializationHandler();
        //      ContentHandler chandler = rth.getContentHandler();
        final StylesheetRoot sroot = transformer.getStylesheet();
        final TemplateList tl = sroot.getTemplateListComposed();
        final boolean quiet = transformer.getQuietConflictWarnings();
        // Should be able to get this from the iterator but there must be a bug.
        DTM dtm = xctxt.getDTM(sourceNode);
        int argsFrame = -1;
        if (nParams > 0) {
            // This code will create a section on the stack that is all the 
            // evaluated arguments.  These will be copied into the real params 
            // section of each called template.
            argsFrame = vars.link(nParams);
            vars.setStackFrame(thisframe);
            for (int i = 0; i < nParams; i++) {
                ElemWithParam ewp = m_paramElems[i];
                XObject obj = ewp.getValue(transformer, sourceNode);
                vars.setLocalVariable(i, obj, argsFrame);
            }
            vars.setStackFrame(argsFrame);
        }
        xctxt.pushContextNodeList(sourceNodes);
        pushContextNodeListFlag = true;
        IntStack currentNodes = xctxt.getCurrentNodeStack();
        IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();
        // pushParams(transformer, xctxt);
        int child;
        while (DTM.NULL != (child = sourceNodes.nextNode())) {
            currentNodes.setTop(child);
            currentExpressionNodes.setTop(child);
            if (xctxt.getDTM(child) != dtm) {
                dtm = xctxt.getDTM(child);
            }
            final int exNodeType = dtm.getExpandedTypeID(child);
            final int nodeType = dtm.getNodeType(child);
            final QName mode = transformer.getMode();
            ElemTemplate template = tl.getTemplateFast(xctxt, child, exNodeType, mode, -1, quiet, dtm);
            // See http://www.w3.org/TR/xslt#built-in-rule.
            if (null == template) {
                switch(nodeType) {
                    case DTM.DOCUMENT_FRAGMENT_NODE:
                    case DTM.ELEMENT_NODE:
                        template = sroot.getDefaultRule();
                        // %OPT% direct faster?
                        break;
                    case DTM.ATTRIBUTE_NODE:
                    case DTM.CDATA_SECTION_NODE:
                    case DTM.TEXT_NODE:
                        // if(rth.m_elemIsPending || rth.m_docPending)
                        //  rth.flushPending(true);
                        transformer.pushPairCurrentMatched(sroot.getDefaultTextRule(), child);
                        transformer.setCurrentElement(sroot.getDefaultTextRule());
                        // dtm.dispatchCharactersEvents(child, chandler, false);
                        dtm.dispatchCharactersEvents(child, rth, false);
                        transformer.popCurrentMatched();
                        continue;
                    case DTM.DOCUMENT_NODE:
                        template = sroot.getDefaultRootRule();
                        break;
                    default:
                        // No default rules for processing instructions and the like.
                        continue;
                }
            } else {
                transformer.setCurrentElement(template);
            }
            transformer.pushPairCurrentMatched(template, child);
            // See comment with unlink, below
            int currentFrameBottom;
            if (template.m_frameSize > 0) {
                xctxt.pushRTFContext();
                // See comment with unlink, below
                currentFrameBottom = vars.getStackFrame();
                vars.link(template.m_frameSize);
                // xsl:params might not be nulled.
                if (/* nParams > 0 && */
                template.m_inArgsSize > 0) {
                    int paramIndex = 0;
                    for (ElemTemplateElement elem = template.getFirstChildElem(); null != elem; elem = elem.getNextSiblingElem()) {
                        if (Constants.ELEMNAME_PARAMVARIABLE == elem.getXSLToken()) {
                            ElemParam ep = (ElemParam) elem;
                            int i;
                            for (i = 0; i < nParams; i++) {
                                ElemWithParam ewp = m_paramElems[i];
                                if (ewp.m_qnameID == ep.m_qnameID) {
                                    XObject obj = vars.getLocalVariable(i, argsFrame);
                                    vars.setLocalVariable(paramIndex, obj);
                                    break;
                                }
                            }
                            if (i == nParams)
                                vars.setLocalVariable(paramIndex, null);
                        } else
                            break;
                        paramIndex++;
                    }
                }
            } else
                currentFrameBottom = 0;
            // each of them.
            for (ElemTemplateElement t = template.m_firstChild; t != null; t = t.m_nextSibling) {
                xctxt.setSAXLocator(t);
                try {
                    transformer.pushElemTemplateElement(t);
                    t.execute(transformer);
                } finally {
                    transformer.popElemTemplateElement();
                }
            }
            if (template.m_frameSize > 0) {
                // See Frank Weiss bug around 03/19/2002 (no Bugzilla report yet).
                // While unlink will restore to the proper place, the real position 
                // may have been changed for xsl:with-param, so that variables 
                // can be accessed.  
                // of right now.
                // More:
                // When we entered this function, the current 
                // frame buffer (cfb) index in the variable stack may 
                // have been manually set.  If we just call 
                // unlink(), however, it will restore the cfb to the 
                // previous link index from the link stack, rather than 
                // the manually set cfb.  So, 
                // the only safe solution is to restore it back 
                // to the same position it was on entry, since we're 
                // really not working in a stack context here. (Bug4218)
                vars.unlink(currentFrameBottom);
                xctxt.popRTFContext();
            }
            transformer.popCurrentMatched();
        }
    // end while (DTM.NULL != (child = sourceNodes.nextNode()))
    } catch (SAXException se) {
        transformer.getErrorListener().fatalError(new TransformerException(se));
    } finally {
        // Unlink to the original stack frame
        if (nParams > 0)
            vars.unlink(thisframe);
        xctxt.popSAXLocator();
        if (pushContextNodeListFlag)
            xctxt.popContextNodeList();
        transformer.popElemTemplateElement();
        xctxt.popCurrentExpressionNode();
        xctxt.popCurrentNode();
        sourceNodes.detach();
    }
}