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

Example 31 with XObject

use of org.apache.xpath.objects.XObject in project j2objc by google.

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 32 with XObject

use of org.apache.xpath.objects.XObject in project j2objc by google.

the class FuncDocument 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 {
    int context = xctxt.getCurrentNode();
    DTM dtm = xctxt.getDTM(context);
    int docContext = dtm.getDocumentRoot(context);
    XObject arg = (XObject) this.getArg0().execute(xctxt);
    String base = "";
    Expression arg1Expr = this.getArg1();
    if (null != arg1Expr) {
        // The URI reference may be relative. The base URI (see [3.2 Base URI])
        // of the node in the second argument node-set that is first in document
        // order is used as the base URI for resolving the
        // relative URI into an absolute URI.
        XObject arg2 = arg1Expr.execute(xctxt);
        if (XObject.CLASS_NODESET == arg2.getType()) {
            int baseNode = arg2.iter().nextNode();
            if (baseNode == DTM.NULL) {
                // See http://www.w3.org/1999/11/REC-xslt-19991116-errata#E14.
                // If the second argument is an empty nodeset, this is an error.
                // The processor can recover by returning an empty nodeset.
                warn(xctxt, XSLTErrorResources.WG_EMPTY_SECOND_ARG, null);
                XNodeSet nodes = new XNodeSet(xctxt.getDTMManager());
                return nodes;
            } else {
                DTM baseDTM = xctxt.getDTM(baseNode);
                base = baseDTM.getDocumentBaseURI();
            }
        // %REVIEW% This doesn't seem to be a problem with the conformance
        // suite, but maybe it's just not doing a good test?
        // int baseDoc = baseDTM.getDocument();
        // 
        // if (baseDoc == DTM.NULL /* || baseDoc instanceof Stylesheet  -->What to do?? */)
        // {
        // 
        // // base = ((Stylesheet)baseDoc).getBaseIdentifier();
        // base = xctxt.getNamespaceContext().getBaseIdentifier();
        // }
        // else
        // base = xctxt.getSourceTreeManager().findURIFromDoc(baseDoc);
        } else {
            // Can not convert other type to a node-set!;
            arg2.iter();
        }
    } else {
        // If the second argument is omitted, then it defaults to
        // the node in the stylesheet that contains the expression that
        // includes the call to the document function. Note that a
        // zero-length URI reference is a reference to the document
        // relative to which the URI reference is being resolved; thus
        // document("") refers to the root node of the stylesheet;
        // the tree representation of the stylesheet is exactly
        // the same as if the XML document containing the stylesheet
        // was the initial source document.
        assertion(null != xctxt.getNamespaceContext(), "Namespace context can not be null!");
        base = xctxt.getNamespaceContext().getBaseIdentifier();
    }
    XNodeSet nodes = new XNodeSet(xctxt.getDTMManager());
    NodeSetDTM mnl = nodes.mutableNodeset();
    DTMIterator iterator = (XObject.CLASS_NODESET == arg.getType()) ? arg.iter() : null;
    int pos = DTM.NULL;
    while ((null == iterator) || (DTM.NULL != (pos = iterator.nextNode()))) {
        XMLString ref = (null != iterator) ? xctxt.getDTM(pos).getStringValue(pos) : arg.xstr();
        // member.
        if (null == arg1Expr && DTM.NULL != pos) {
            DTM baseDTM = xctxt.getDTM(pos);
            base = baseDTM.getDocumentBaseURI();
        }
        if (null == ref)
            continue;
        if (DTM.NULL == docContext) {
            // "context does not have an owner document!");
            error(xctxt, XSLTErrorResources.ER_NO_CONTEXT_OWNERDOC, null);
        }
        // From http://www.ics.uci.edu/pub/ietf/uri/rfc1630.txt
        // A partial form can be distinguished from an absolute form in that the
        // latter must have a colon and that colon must occur before any slash
        // characters. Systems not requiring partial forms should not use any
        // unencoded slashes in their naming schemes.  If they do, absolute URIs
        // will still work, but confusion may result.
        int indexOfColon = ref.indexOf(':');
        int indexOfSlash = ref.indexOf('/');
        if ((indexOfColon != -1) && (indexOfSlash != -1) && (indexOfColon < indexOfSlash)) {
            // The url (or filename, for that matter) is absolute.
            base = null;
        }
        int newDoc = getDoc(xctxt, context, ref.toString(), base);
        // nodes.mutableNodeset().addNode(newDoc);
        if (DTM.NULL != newDoc) {
            // TODO: mnl.addNodeInDocOrder(newDoc, true, xctxt); ??
            if (!mnl.contains(newDoc)) {
                mnl.addElement(newDoc);
            }
        }
        if (null == iterator || newDoc == DTM.NULL)
            break;
    }
    return nodes;
}

Example 33 with XObject

use of org.apache.xpath.objects.XObject in project j2objc by google.

the class ElemCallTemplate method execute.

/**
 * Invoke a named template.
 * @see <a href="http://www.w3.org/TR/xslt#named-templates">named-templates 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 {
    if (null != m_template) {
        XPathContext xctxt = transformer.getXPathContext();
        VariableStack vars = xctxt.getVarStack();
        int thisframe = vars.getStackFrame();
        int nextFrame = vars.link(m_template.m_frameSize);
        // so that the default param evaluation will work correctly.
        if (m_template.m_inArgsSize > 0) {
            vars.clearLocalSlots(0, m_template.m_inArgsSize);
            if (null != m_paramElems) {
                int currentNode = xctxt.getCurrentNode();
                vars.setStackFrame(thisframe);
                int size = m_paramElems.length;
                for (int i = 0; i < size; i++) {
                    ElemWithParam ewp = m_paramElems[i];
                    if (ewp.m_index >= 0) {
                        XObject obj = ewp.getValue(transformer, currentNode);
                        // Note here that the index for ElemWithParam must have been
                        // statically made relative to the xsl:template being called,
                        // NOT this xsl:template.
                        vars.setLocalVariable(ewp.m_index, obj, nextFrame);
                    }
                }
                vars.setStackFrame(nextFrame);
            }
        }
        SourceLocator savedLocator = xctxt.getSAXLocator();
        try {
            xctxt.setSAXLocator(m_template);
            // template.executeChildTemplates(transformer, sourceNode, mode, true);
            transformer.pushElemTemplateElement(m_template);
            m_template.execute(transformer);
        } finally {
            transformer.popElemTemplateElement();
            xctxt.setSAXLocator(savedLocator);
            // 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(thisframe);
        }
    } else {
        transformer.getMsgMgr().error(this, XSLTErrorResources.ER_TEMPLATE_NOT_FOUND, // "Could not find template named: '"+templateName+"'");
        new Object[] { m_templateName });
    }
}

Example 34 with XObject

use of org.apache.xpath.objects.XObject in project j2objc by google.

the class ElemParam 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 {
    VariableStack vars = transformer.getXPathContext().getVarStack();
    if (!vars.isLocalSet(m_index)) {
        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 35 with XObject

use of org.apache.xpath.objects.XObject in project j2objc by google.

the class StepPattern method getMatchScore.

/**
 * Get the match score of the given node.
 *
 * @param xctxt The XPath runtime context.
 * @param context The node to be tested.
 *
 * @return {@link org.apache.xpath.patterns.NodeTest#SCORE_NODETEST},
 *         {@link org.apache.xpath.patterns.NodeTest#SCORE_NONE},
 *         {@link org.apache.xpath.patterns.NodeTest#SCORE_NSWILD},
 *         {@link org.apache.xpath.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link org.apache.xpath.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public double getMatchScore(XPathContext xctxt, int context) throws javax.xml.transform.TransformerException {
    xctxt.pushCurrentNode(context);
    xctxt.pushCurrentExpressionNode(context);
    try {
        XObject score = execute(xctxt);
        return score.num();
    } finally {
        xctxt.popCurrentNode();
        xctxt.popCurrentExpressionNode();
    }
// return XPath.MATCH_SCORE_NONE;
}