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

Example 16 with XPath

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

the class ElemNumber method getPreviousNode.

/**
   * Get the previous node to be counted.
   *
   * @param xctxt The XPath runtime state for this.
   * @param pos The current node
   *
   * @return the previous node to be counted.
   *
   * @throws TransformerException
   */
public int getPreviousNode(XPathContext xctxt, int pos) throws TransformerException {
    XPath countMatchPattern = getCountMatchPattern(xctxt, pos);
    DTM dtm = xctxt.getDTM(pos);
    if (Constants.NUMBERLEVEL_ANY == m_level) {
        XPath fromMatchPattern = m_fromMatchPattern;
        // or the top of the tree is found.
        while (DTM.NULL != pos) {
            // Get the previous sibling, if there is no previous sibling, 
            // then count the parent, but if there is a previous sibling, 
            // dive down to the lowest right-hand (last) child of that sibling.
            int next = dtm.getPreviousSibling(pos);
            if (DTM.NULL == next) {
                next = dtm.getParent(pos);
                if ((DTM.NULL != next) && ((((null != fromMatchPattern) && (fromMatchPattern.getMatchScore(xctxt, next) != XPath.MATCH_SCORE_NONE))) || (dtm.getNodeType(next) == DTM.DOCUMENT_NODE))) {
                    // return null from function.
                    pos = DTM.NULL;
                    // from while loop
                    break;
                }
            } else {
                // dive down to the lowest right child.
                int child = next;
                while (DTM.NULL != child) {
                    child = dtm.getLastChild(next);
                    if (DTM.NULL != child)
                        next = child;
                }
            }
            pos = next;
            if ((DTM.NULL != pos) && ((null == countMatchPattern) || (countMatchPattern.getMatchScore(xctxt, pos) != XPath.MATCH_SCORE_NONE))) {
                break;
            }
        }
    } else // NUMBERLEVEL_MULTI or NUMBERLEVEL_SINGLE
    {
        while (DTM.NULL != pos) {
            pos = dtm.getPreviousSibling(pos);
            if ((DTM.NULL != pos) && ((null == countMatchPattern) || (countMatchPattern.getMatchScore(xctxt, pos) != XPath.MATCH_SCORE_NONE))) {
                break;
            }
        }
    }
    return pos;
}

Example 17 with XPath

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

the class TemplateList method setTemplate.

/**
   * Add a template to the table of named templates and/or the table of templates
   * with match patterns.  This routine should
   * be called in decreasing order of precedence but it checks nonetheless.
   *
   * @param template
   */
public void setTemplate(ElemTemplate template) {
    XPath matchXPath = template.getMatch();
    if (null == template.getName() && null == matchXPath) {
        template.error(XSLTErrorResources.ER_NEED_NAME_OR_MATCH_ATTRIB, new Object[] { "xsl:template" });
    }
    if (null != template.getName()) {
        ElemTemplate existingTemplate = (ElemTemplate) m_namedTemplates.get(template.getName());
        if (null == existingTemplate) {
            m_namedTemplates.put(template.getName(), template);
        } else {
            int existingPrecedence = existingTemplate.getStylesheetComposed().getImportCountComposed();
            int newPrecedence = template.getStylesheetComposed().getImportCountComposed();
            if (newPrecedence > existingPrecedence) {
                // This should never happen
                m_namedTemplates.put(template.getName(), template);
            } else if (newPrecedence == existingPrecedence)
                template.error(XSLTErrorResources.ER_DUPLICATE_NAMED_TEMPLATE, new Object[] { template.getName() });
        }
    }
    if (null != matchXPath) {
        Expression matchExpr = matchXPath.getExpression();
        if (matchExpr instanceof StepPattern) {
            insertPatternInTable((StepPattern) matchExpr, template);
        } else if (matchExpr instanceof UnionPattern) {
            UnionPattern upat = (UnionPattern) matchExpr;
            StepPattern[] pats = upat.getPatterns();
            int n = pats.length;
            for (int i = 0; i < n; i++) {
                insertPatternInTable(pats[i], template);
            }
        } else {
        // TODO: assert error
        }
    }
}

Example 18 with XPath

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

the class ElemNumber method getTargetNode.

/**
   * Get the target node that will be counted..
   *
   * @param xctxt The XPath runtime state for this.
   * @param sourceNode non-null reference to the <a href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>.
   *
   * @return the target node that will be counted
   *
   * @throws TransformerException
   */
public int getTargetNode(XPathContext xctxt, int sourceNode) throws TransformerException {
    int target = DTM.NULL;
    XPath countMatchPattern = getCountMatchPattern(xctxt, sourceNode);
    if (Constants.NUMBERLEVEL_ANY == m_level) {
        target = findPrecedingOrAncestorOrSelf(xctxt, m_fromMatchPattern, countMatchPattern, sourceNode, this);
    } else {
        target = findAncestor(xctxt, m_fromMatchPattern, countMatchPattern, sourceNode, this);
    }
    return target;
}

Example 19 with XPath

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

the class XSLTAttributeDef method processSIMPLEPATTERNLIST.

/**
   * Process an attribute string of type T_SIMPLEPATTERNLIST into
   * a vector of XPath match patterns.
   *
   * @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
   * @param uri The Namespace URI, or an empty string.
   * @param name The local name (without prefix), or empty string if not namespace processing.
   * @param rawName The qualified name (with prefix).
   * @param value A whitespace delimited list of simple match patterns.
   *
   * @return A Vector of XPath objects.
   *
   * @throws org.xml.sax.SAXException that wraps a
   * {@link javax.xml.transform.TransformerException} if one of the match pattern
   * strings contains a syntax error.
   */
Vector processSIMPLEPATTERNLIST(StylesheetHandler handler, String uri, String name, String rawName, String value, ElemTemplateElement owner) throws org.xml.sax.SAXException {
    try {
        StringTokenizer tokenizer = new StringTokenizer(value, " \t\n\r\f");
        int nPatterns = tokenizer.countTokens();
        Vector patterns = new Vector(nPatterns);
        for (int i = 0; i < nPatterns; i++) {
            XPath pattern = handler.createMatchPatternXPath(tokenizer.nextToken(), owner);
            patterns.addElement(pattern);
        }
        return patterns;
    } catch (TransformerException te) {
        throw new org.xml.sax.SAXException(te);
    }
}

Example 20 with XPath

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

the class ProcessorLRE method startElement.

/**
   * Receive notification of the start of an element.
   *
   * @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
   * @param uri The Namespace URI, or an empty string.
   * @param localName The local name (without prefix), or empty string if not namespace processing.
   * @param rawName The qualified name (with prefix).
   * @param attributes The specified or defaulted attributes.
   */
public void startElement(StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes) throws org.xml.sax.SAXException {
    try {
        ElemTemplateElement p = handler.getElemTemplateElement();
        boolean excludeXSLDecl = false;
        boolean isLREAsStyleSheet = false;
        if (null == p) {
            // Literal Result Template as stylesheet.
            XSLTElementProcessor lreProcessor = handler.popProcessor();
            XSLTElementProcessor stylesheetProcessor = handler.getProcessorFor(Constants.S_XSLNAMESPACEURL, "stylesheet", "xsl:stylesheet");
            handler.pushProcessor(lreProcessor);
            Stylesheet stylesheet;
            try {
                stylesheet = getStylesheetRoot(handler);
            } catch (TransformerConfigurationException tfe) {
                throw new TransformerException(tfe);
            }
            // stylesheet.setDOMBackPointer(handler.getOriginatingNode());
            // ***** Note that we're assigning an empty locator. Is this necessary?
            SAXSourceLocator slocator = new SAXSourceLocator();
            Locator locator = handler.getLocator();
            if (null != locator) {
                slocator.setLineNumber(locator.getLineNumber());
                slocator.setColumnNumber(locator.getColumnNumber());
                slocator.setPublicId(locator.getPublicId());
                slocator.setSystemId(locator.getSystemId());
            }
            stylesheet.setLocaterInfo(slocator);
            stylesheet.setPrefixes(handler.getNamespaceSupport());
            handler.pushStylesheet(stylesheet);
            isLREAsStyleSheet = true;
            AttributesImpl stylesheetAttrs = new AttributesImpl();
            AttributesImpl lreAttrs = new AttributesImpl();
            int n = attributes.getLength();
            for (int i = 0; i < n; i++) {
                String attrLocalName = attributes.getLocalName(i);
                String attrUri = attributes.getURI(i);
                String value = attributes.getValue(i);
                if ((null != attrUri) && attrUri.equals(Constants.S_XSLNAMESPACEURL)) {
                    stylesheetAttrs.addAttribute(null, attrLocalName, attrLocalName, attributes.getType(i), attributes.getValue(i));
                } else if ((attrLocalName.startsWith("xmlns:") || attrLocalName.equals("xmlns")) && value.equals(Constants.S_XSLNAMESPACEURL)) {
                // ignore
                } else {
                    lreAttrs.addAttribute(attrUri, attrLocalName, attributes.getQName(i), attributes.getType(i), attributes.getValue(i));
                }
            }
            attributes = lreAttrs;
            // allowed on a stylesheet.
            try {
                stylesheetProcessor.setPropertiesFromAttributes(handler, "stylesheet", stylesheetAttrs, stylesheet);
            } catch (Exception e) {
                if (stylesheet.getDeclaredPrefixes() == null || !declaredXSLNS(stylesheet)) {
                    throw new org.xml.sax.SAXException(XSLMessages.createWarning(XSLTErrorResources.WG_OLD_XSLT_NS, null));
                } else {
                    throw new org.xml.sax.SAXException(e);
                }
            }
            handler.pushElemTemplateElement(stylesheet);
            ElemTemplate template = new ElemTemplate();
            if (slocator != null)
                template.setLocaterInfo(slocator);
            appendAndPush(handler, template);
            XPath rootMatch = new XPath("/", stylesheet, stylesheet, XPath.MATCH, handler.getStylesheetProcessor().getErrorListener());
            template.setMatch(rootMatch);
            // template.setDOMBackPointer(handler.getOriginatingNode());
            stylesheet.setTemplate(template);
            p = handler.getElemTemplateElement();
            excludeXSLDecl = true;
        }
        XSLTElementDef def = getElemDef();
        Class classObject = def.getClassObject();
        boolean isExtension = false;
        boolean isComponentDecl = false;
        boolean isUnknownTopLevel = false;
        while (null != p) {
            // System.out.println("Checking: "+p);
            if (p instanceof ElemLiteralResult) {
                ElemLiteralResult parentElem = (ElemLiteralResult) p;
                isExtension = parentElem.containsExtensionElementURI(uri);
            } else if (p instanceof Stylesheet) {
                Stylesheet parentElem = (Stylesheet) p;
                isExtension = parentElem.containsExtensionElementURI(uri);
                if ((false == isExtension) && (null != uri) && (uri.equals(Constants.S_BUILTIN_EXTENSIONS_URL) || uri.equals(Constants.S_BUILTIN_OLD_EXTENSIONS_URL))) {
                    isComponentDecl = true;
                } else {
                    isUnknownTopLevel = true;
                }
            }
            if (isExtension)
                break;
            p = p.getParentElem();
        }
        ElemTemplateElement elem = null;
        try {
            if (isExtension) {
                // System.out.println("Creating extension(1): "+uri);
                elem = new ElemExtensionCall();
            } else if (isComponentDecl) {
                elem = (ElemTemplateElement) classObject.newInstance();
            } else if (isUnknownTopLevel) {
                // TBD: Investigate, not sure about this.  -sb
                elem = (ElemTemplateElement) classObject.newInstance();
            } else {
                elem = (ElemTemplateElement) classObject.newInstance();
            }
            elem.setDOMBackPointer(handler.getOriginatingNode());
            elem.setLocaterInfo(handler.getLocator());
            elem.setPrefixes(handler.getNamespaceSupport(), excludeXSLDecl);
            if (elem instanceof ElemLiteralResult) {
                ((ElemLiteralResult) elem).setNamespace(uri);
                ((ElemLiteralResult) elem).setLocalName(localName);
                ((ElemLiteralResult) elem).setRawName(rawName);
                ((ElemLiteralResult) elem).setIsLiteralResultAsStylesheet(isLREAsStyleSheet);
            }
        } catch (InstantiationException ie) {
            //"Failed creating ElemLiteralResult instance!", ie);
            handler.error(XSLTErrorResources.ER_FAILED_CREATING_ELEMLITRSLT, null, ie);
        } catch (IllegalAccessException iae) {
            //"Failed creating ElemLiteralResult instance!", iae);
            handler.error(XSLTErrorResources.ER_FAILED_CREATING_ELEMLITRSLT, null, iae);
        }
        setPropertiesFromAttributes(handler, rawName, attributes, elem);
        // bit of a hack here...
        if (!isExtension && (elem instanceof ElemLiteralResult)) {
            isExtension = ((ElemLiteralResult) elem).containsExtensionElementURI(uri);
            if (isExtension) {
                // System.out.println("Creating extension(2): "+uri);
                elem = new ElemExtensionCall();
                elem.setLocaterInfo(handler.getLocator());
                elem.setPrefixes(handler.getNamespaceSupport());
                ((ElemLiteralResult) elem).setNamespace(uri);
                ((ElemLiteralResult) elem).setLocalName(localName);
                ((ElemLiteralResult) elem).setRawName(rawName);
                setPropertiesFromAttributes(handler, rawName, attributes, elem);
            }
        }
        appendAndPush(handler, elem);
    } catch (TransformerException te) {
        throw new org.xml.sax.SAXException(te);
    }
}