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

Example 26 with XPath

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

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 27 with XPath

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

the class ElemWithParam method compose.

/**
   * This function is called after everything else has been
   * recomposed, and allows the template to set remaining
   * values that may be based on some other property that
   * depends on recomposition.
   */
public void compose(StylesheetRoot sroot) throws TransformerException {
    // See if we can reduce an RTF to a select with a string expression.
    if (null == m_selectPattern && sroot.getOptimizer()) {
        XPath newSelect = ElemVariable.rewriteChildToExpression(this);
        if (null != newSelect)
            m_selectPattern = newSelect;
    }
    m_qnameID = sroot.getComposeState().getQNameID(m_qname);
    super.compose(sroot);
    java.util.Vector vnames = sroot.getComposeState().getVariableNames();
    if (null != m_selectPattern)
        m_selectPattern.fixupVariables(vnames, sroot.getComposeState().getGlobalsSize());
// m_index must be resolved by ElemApplyTemplates and ElemCallTemplate!
}

Example 28 with XPath

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

the class RedundentExprEliminator method createLocalPseudoVarDecl.

/**
   * Create a psuedo variable reference that will represent the 
   * shared redundent XPath, for a local reduction.
   * 
   * @param uniquePseudoVarName The name of the new variable.
   * @param psuedoVarRecipient The broadest scope of where the variable 
   * should be inserted, usually an xsl:template or xsl:for-each.
   * @param lpi The LocationPathIterator that the variable should represent.
   * @return null if the decl was not created, otherwise the new Pseudo var  
   *              element.
   */
protected ElemVariable createLocalPseudoVarDecl(QName uniquePseudoVarName, ElemTemplateElement psuedoVarRecipient, LocPathIterator lpi) throws org.w3c.dom.DOMException {
    ElemVariable psuedoVar = new ElemVariablePsuedo();
    XPath xpath = new XPath(lpi);
    psuedoVar.setSelect(xpath);
    psuedoVar.setName(uniquePseudoVarName);
    ElemVariable var = addVarDeclToElem(psuedoVarRecipient, lpi, psuedoVar);
    lpi.exprSetParent(var);
    return var;
}

Example 29 with XPath

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

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 30 with XPath

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

the class KeyIterator 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 testNode  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 testNode) {
    boolean foundKey = false;
    KeyIterator ki = (KeyIterator) m_lpi;
    org.apache.xpath.XPathContext xctxt = ki.getXPathContext();
    Vector keys = ki.getKeyDeclarations();
    QName name = ki.getName();
    try {
        // System.out.println("lookupKey: "+lookupKey);
        int nDeclarations = keys.size();
        // Walk through each of the declarations made with xsl:key
        for (int i = 0; i < nDeclarations; i++) {
            KeyDeclaration kd = (KeyDeclaration) keys.elementAt(i);
            // matches the name on the iterator for this walker. 
            if (!kd.getName().equals(name))
                continue;
            foundKey = true;
            // xctxt.setNamespaceContext(ki.getPrefixResolver());
            // See if our node matches the given key declaration according to 
            // the match attribute on xsl:key.
            XPath matchExpr = kd.getMatch();
            double score = matchExpr.getMatchScore(xctxt, testNode);
            if (score == kd.getMatch().MATCH_SCORE_NONE)
                continue;
            return DTMIterator.FILTER_ACCEPT;
        }
    // end for(int i = 0; i < nDeclarations; i++)
    } catch (TransformerException se) {
    // TODO: What to do?
    }
    if (!foundKey)
        throw new RuntimeException(XSLMessages.createMessage(XSLTErrorResources.ER_NO_XSLKEY_DECLARATION, new Object[] { name.getLocalName() }));
    return DTMIterator.FILTER_REJECT;
}