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

Example 1 with NodeSetDTM

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

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 2 with NodeSetDTM

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

the class ElemNumber method getMatchingAncestors.

/**
   * Get the ancestors, up to the root, that match the
   * pattern.
   * 
   * @param xctxt The XPath runtime state for this.
   * @param node Count this node and it's ancestors.
   * @param stopAtFirstFound Flag indicating to stop after the
   * first node is found (difference between level = single
   * or multiple)
   * @return The number of ancestors that match the pattern.
   *
   * @throws javax.xml.transform.TransformerException
   */
NodeVector getMatchingAncestors(XPathContext xctxt, int node, boolean stopAtFirstFound) throws javax.xml.transform.TransformerException {
    NodeSetDTM ancestors = new NodeSetDTM(xctxt.getDTMManager());
    XPath countMatchPattern = getCountMatchPattern(xctxt, node);
    DTM dtm = xctxt.getDTM(node);
    while (DTM.NULL != node) {
        if ((null != m_fromMatchPattern) && (m_fromMatchPattern.getMatchScore(xctxt, node) != XPath.MATCH_SCORE_NONE)) {
            // that we still don't understand.
            if (!stopAtFirstFound)
                break;
        }
        if (null == countMatchPattern)
            System.out.println("Programmers error! countMatchPattern should never be null!");
        if (countMatchPattern.getMatchScore(xctxt, node) != XPath.MATCH_SCORE_NONE) {
            ancestors.addElement(node);
            if (stopAtFirstFound)
                break;
        }
        node = dtm.getParent(node);
    }
    return ancestors;
}

Example 3 with NodeSetDTM

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

the class FuncId 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.getDocument();
    if (DTM.NULL == docContext)
        error(xctxt, XPATHErrorResources.ER_CONTEXT_HAS_NO_OWNERDOC, null);
    XObject arg = m_arg0.execute(xctxt);
    int argType = arg.getType();
    XNodeSet nodes = new XNodeSet(xctxt.getDTMManager());
    NodeSetDTM nodeSet = nodes.mutableNodeset();
    if (XObject.CLASS_NODESET == argType) {
        DTMIterator ni = arg.iter();
        StringVector usedrefs = null;
        int pos = ni.nextNode();
        while (DTM.NULL != pos) {
            DTM ndtm = ni.getDTM(pos);
            String refval = ndtm.getStringValue(pos).toString();
            pos = ni.nextNode();
            usedrefs = getNodesByID(xctxt, docContext, refval, usedrefs, nodeSet, DTM.NULL != pos);
        }
    // ni.detach();
    } else if (XObject.CLASS_NULL == argType) {
        return nodes;
    } else {
        String refval = arg.str();
        getNodesByID(xctxt, docContext, refval, null, nodeSet, false);
    }
    return nodes;
}

Example 4 with NodeSetDTM

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

the class FuncId method getNodesByID.

/**
   * Fill in a list with nodes that match a space delimited list if ID 
   * ID references.
   *
   * @param xctxt The runtime XPath context.
   * @param docContext The document where the nodes are being looked for.
   * @param refval A space delimited list of ID references.
   * @param usedrefs List of references for which nodes were found.
   * @param nodeSet Node set where the nodes will be added to.
   * @param mayBeMore true if there is another set of nodes to be looked for.
   *
   * @return The usedrefs value.
   */
private StringVector getNodesByID(XPathContext xctxt, int docContext, String refval, StringVector usedrefs, NodeSetDTM nodeSet, boolean mayBeMore) {
    if (null != refval) {
        String ref = null;
        //      DOMHelper dh = xctxt.getDOMHelper();
        StringTokenizer tokenizer = new StringTokenizer(refval);
        boolean hasMore = tokenizer.hasMoreTokens();
        DTM dtm = xctxt.getDTM(docContext);
        while (hasMore) {
            ref = tokenizer.nextToken();
            hasMore = tokenizer.hasMoreTokens();
            if ((null != usedrefs) && usedrefs.contains(ref)) {
                ref = null;
                continue;
            }
            int node = dtm.getElementById(ref);
            if (DTM.NULL != node)
                nodeSet.addNodeInDocOrder(node, xctxt);
            if ((null != ref) && (hasMore || mayBeMore)) {
                if (null == usedrefs)
                    usedrefs = new StringVector();
                usedrefs.addElement(ref);
            }
        }
    }
    return usedrefs;
}

Example 5 with NodeSetDTM

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

the class NodeSequence method getLength.

/**
   * @see DTMIterator#getLength()
   */
public int getLength() {
    IteratorCache cache = getCache();
    if (cache != null) {
        // Nodes from the iterator are cached
        if (cache.isComplete()) {
            // All of the nodes from the iterator are cached
            // so just return the number of nodes in the cache
            NodeVector nv = cache.getVector();
            return nv.size();
        }
        // it has been mutated...
        if (m_iter instanceof NodeSetDTM) {
            return m_iter.getLength();
        }
        if (-1 == m_last) {
            int pos = m_next;
            runTo(-1);
            m_next = pos;
        }
        return m_last;
    } else {
        return (-1 == m_last) ? (m_last = m_iter.getLength()) : m_last;
    }
}