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

Example 76 with XObject

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

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 77 with XObject

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

the class NodeSorter method compare.

/**
   * Return the results of a compare of two nodes.
   * TODO: Optimize compare -- cache the getStringExpr results, key by m_selectPat + hash of node.
   *
   * @param n1 First node to use in compare
   * @param n2 Second node to use in compare
   * @param kIndex Index of NodeSortKey to use for sort
   * @param support XPath context to use
   *
   * @return The results of the compare of the two nodes.
   *
   * @throws TransformerException
   */
int compare(NodeCompareElem n1, NodeCompareElem n2, int kIndex, XPathContext support) throws TransformerException {
    int result = 0;
    NodeSortKey k = (NodeSortKey) m_keys.elementAt(kIndex);
    if (k.m_treatAsNumbers) {
        double n1Num, n2Num;
        if (kIndex == 0) {
            n1Num = ((Double) n1.m_key1Value).doubleValue();
            n2Num = ((Double) n2.m_key1Value).doubleValue();
        } else if (kIndex == 1) {
            n1Num = ((Double) n1.m_key2Value).doubleValue();
            n2Num = ((Double) n2.m_key2Value).doubleValue();
        } else /* Leave this in case we decide to use an array later
      if (kIndex < maxkey)
      {
      double n1Num = (double)n1.m_keyValue[kIndex];
      double n2Num = (double)n2.m_keyValue[kIndex];
      }*/
        {
            // Get values dynamically
            XObject r1 = k.m_selectPat.execute(m_execContext, n1.m_node, k.m_namespaceContext);
            XObject r2 = k.m_selectPat.execute(m_execContext, n2.m_node, k.m_namespaceContext);
            n1Num = r1.num();
            // Can't use NaN for compare. They are never equal. Use zero instead.
            // That way we can keep elements in document order. 
            //n1Num = Double.isNaN(d) ? 0.0 : d;
            n2Num = r2.num();
        //n2Num = Double.isNaN(d) ? 0.0 : d;
        }
        if ((n1Num == n2Num) && ((kIndex + 1) < m_keys.size())) {
            result = compare(n1, n2, kIndex + 1, support);
        } else {
            double diff;
            if (Double.isNaN(n1Num)) {
                if (Double.isNaN(n2Num))
                    diff = 0.0;
                else
                    diff = -1;
            } else if (Double.isNaN(n2Num))
                diff = 1;
            else
                diff = n1Num - n2Num;
            // process order parameter 
            result = (int) ((diff < 0.0) ? (k.m_descending ? 1 : -1) : (diff > 0.0) ? (k.m_descending ? -1 : 1) : 0);
        }
    } else // end treat as numbers 
    {
        CollationKey n1String, n2String;
        if (kIndex == 0) {
            n1String = (CollationKey) n1.m_key1Value;
            n2String = (CollationKey) n2.m_key1Value;
        } else if (kIndex == 1) {
            n1String = (CollationKey) n1.m_key2Value;
            n2String = (CollationKey) n2.m_key2Value;
        } else /* Leave this in case we decide to use an array later
      if (kIndex < maxkey)
      {
        String n1String = (String)n1.m_keyValue[kIndex];
        String n2String = (String)n2.m_keyValue[kIndex];
      }*/
        {
            // Get values dynamically
            XObject r1 = k.m_selectPat.execute(m_execContext, n1.m_node, k.m_namespaceContext);
            XObject r2 = k.m_selectPat.execute(m_execContext, n2.m_node, k.m_namespaceContext);
            n1String = k.m_col.getCollationKey(r1.str());
            n2String = k.m_col.getCollationKey(r2.str());
        }
        // Use collation keys for faster compare, but note that whitespaces 
        // etc... are treated differently from if we were comparing Strings.
        result = n1String.compareTo(n2String);
        //Process caseOrder parameter
        if (k.m_caseOrderUpper) {
            String tempN1 = n1String.getSourceString().toLowerCase();
            String tempN2 = n2String.getSourceString().toLowerCase();
            if (tempN1.equals(tempN2)) {
                //java defaults to upper case is greater.
                result = result == 0 ? 0 : -result;
            }
        }
        //Process order parameter
        if (k.m_descending) {
            result = -result;
        }
    }
    if (0 == result) {
        if ((kIndex + 1) < m_keys.size()) {
            result = compare(n1, n2, kIndex + 1, support);
        }
    }
    if (0 == result) {
        // I shouldn't have to do this except that there seems to 
        // be a glitch in the mergesort
        // if(r1.getType() == r1.CLASS_NODESET)
        // {
        // %OPT%
        DTM dtm = support.getDTM(n1.m_node);
        result = dtm.isNodeAfter(n1.m_node, n2.m_node) ? -1 : 1;
    // }
    }
    return result;
}

Example 78 with XObject

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

the class ElemNumber method getCountString.

/**
   * Given an XML source node, get the count according to the
   * parameters set up by the xsl:number attributes.
   * @param transformer non-null reference to the the current transform-time state.
   * @param sourceNode The source node being counted.
   *
   * @return The count of nodes
   *
   * @throws TransformerException
   */
String getCountString(TransformerImpl transformer, int sourceNode) throws TransformerException {
    long[] list = null;
    XPathContext xctxt = transformer.getXPathContext();
    CountersTable ctable = transformer.getCountersTable();
    if (null != m_valueExpr) {
        XObject countObj = m_valueExpr.execute(xctxt, sourceNode, this);
        //According to Errata E24
        double d_count = java.lang.Math.floor(countObj.num() + 0.5);
        if (Double.isNaN(d_count))
            return "NaN";
        else if (d_count < 0 && Double.isInfinite(d_count))
            return "-Infinity";
        else if (Double.isInfinite(d_count))
            return "Infinity";
        else if (d_count == 0)
            return "0";
        else {
            long count = (long) d_count;
            list = new long[1];
            list[0] = count;
        }
    } else {
        if (Constants.NUMBERLEVEL_ANY == m_level) {
            list = new long[1];
            list[0] = ctable.countNode(xctxt, this, sourceNode);
        } else {
            NodeVector ancestors = getMatchingAncestors(xctxt, sourceNode, Constants.NUMBERLEVEL_SINGLE == m_level);
            int lastIndex = ancestors.size() - 1;
            if (lastIndex >= 0) {
                list = new long[lastIndex + 1];
                for (int i = lastIndex; i >= 0; i--) {
                    int target = ancestors.elementAt(i);
                    list[lastIndex - i] = ctable.countNode(xctxt, this, target);
                }
            }
        }
    }
    return (null != list) ? formatNumberList(transformer, list, sourceNode) : "";
}

Example 79 with XObject

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

the class ElemVariable method execute.

/**
   * Execute a variable declaration and push it onto the variable stack.
   * @see <a href="http://www.w3.org/TR/xslt#variables">variables 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 {
    int sourceNode = transformer.getXPathContext().getCurrentNode();
    XObject var = getValue(transformer, sourceNode);
    // transformer.getXPathContext().getVarStack().pushVariable(m_qname, var);
    transformer.getXPathContext().getVarStack().setLocalVariable(m_index, var);
}

Example 80 with XObject

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

the class XUnresolvedVariable method execute.

/**
   * For support of literal objects in xpaths.
   *
   * @param xctxt The XPath execution context.
   *
   * @return This object.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    if (!m_doneEval) {
        this.m_transformer.getMsgMgr().error(xctxt.getSAXLocator(), XSLTErrorResources.ER_REFERENCING_ITSELF, new Object[] { ((ElemVariable) this.object()).getName().getLocalName() });
    }
    VariableStack vars = xctxt.getVarStack();
    // These three statements need to be combined into one operation.
    int currentFrame = vars.getStackFrame();
    //// vars.setStackFrame(m_varStackPos);
    ElemVariable velem = (ElemVariable) m_obj;
    try {
        m_doneEval = false;
        if (-1 != velem.m_frameSize)
            vars.link(velem.m_frameSize);
        XObject var = velem.getValue(m_transformer, m_context);
        m_doneEval = true;
        return var;
    } finally {
        if (-1 != velem.m_frameSize)
            vars.unlink(currentFrame);
    }
}