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

Example 26 with XNodeSet

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

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 27 with XNodeSet

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

the class KeyTable method getNodeSetDTMByKey.

/**
   * Given a valid element key, return the corresponding node list.
   * 
   * @param name The name of the key, which must match the 'name' attribute on xsl:key.
   * @param ref The value that must match the value found by the 'match' attribute on xsl:key.
   * @return a set of nodes referenced by the key named <CODE>name</CODE> and the reference <CODE>ref</CODE>. If no node is referenced by this key, an empty node set is returned.
   */
public XNodeSet getNodeSetDTMByKey(QName name, XMLString ref) {
    XNodeSet refNodes = (XNodeSet) getRefsTable().get(ref);
    // clone wiht reset the node set
    try {
        if (refNodes != null) {
            refNodes = (XNodeSet) refNodes.cloneWithReset();
        }
    } catch (CloneNotSupportedException e) {
        refNodes = null;
    }
    if (refNodes == null) {
        //  create an empty XNodeSet
        KeyIterator ki = (KeyIterator) (m_keyNodes).getContainedIter();
        XPathContext xctxt = ki.getXPathContext();
        refNodes = new XNodeSet(xctxt.getDTMManager()) {

            public void setRoot(int nodeHandle, Object environment) {
            // Root cannot be set on non-iterated node sets. Ignore it.
            }
        };
        refNodes.reset();
    }
    return refNodes;
}

Example 28 with XNodeSet

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

the class KeyManager method getNodeSetDTMByKey.

/**
   * Given a valid element key, return the corresponding node list.
   *
   * @param xctxt The XPath runtime state
   * @param doc The document node
   * @param name The key element name
   * @param ref The key value we're looking for 
   * @param nscontext The prefix resolver for the execution context
   *
   * @return A nodelist of nodes mathing the given key
   *
   * @throws javax.xml.transform.TransformerException
   */
public XNodeSet getNodeSetDTMByKey(XPathContext xctxt, int doc, QName name, XMLString ref, PrefixResolver nscontext) throws javax.xml.transform.TransformerException {
    XNodeSet nl = null;
    // yuck -sb
    ElemTemplateElement template = (ElemTemplateElement) nscontext;
    if ((null != template) && null != template.getStylesheetRoot().getKeysComposed()) {
        boolean foundDoc = false;
        if (null == m_key_tables) {
            m_key_tables = new Vector(4);
        } else {
            int nKeyTables = m_key_tables.size();
            for (int i = 0; i < nKeyTables; i++) {
                KeyTable kt = (KeyTable) m_key_tables.elementAt(i);
                if (kt.getKeyTableName().equals(name) && doc == kt.getDocKey()) {
                    nl = kt.getNodeSetDTMByKey(name, ref);
                    if (nl != null) {
                        foundDoc = true;
                        break;
                    }
                }
            }
        }
        if ((null == nl) && !foundDoc) /* && m_needToBuildKeysTable */
        {
            KeyTable kt = new KeyTable(doc, nscontext, name, template.getStylesheetRoot().getKeysComposed(), xctxt);
            m_key_tables.addElement(kt);
            if (doc == kt.getDocKey()) {
                foundDoc = true;
                nl = kt.getNodeSetDTMByKey(name, ref);
            }
        }
    }
    return nl;
}

Example 29 with XNodeSet

use of org.apache.xpath.objects.XNodeSet 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 30 with XNodeSet

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

the class FuncKey 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 {
    // TransformerImpl transformer = (TransformerImpl)xctxt;
    TransformerImpl transformer = (TransformerImpl) xctxt.getOwnerObject();
    XNodeSet nodes = null;
    int context = xctxt.getCurrentNode();
    DTM dtm = xctxt.getDTM(context);
    int docContext = dtm.getDocumentRoot(context);
    if (DTM.NULL == docContext) {
    // path.error(context, XPATHErrorResources.ER_CONTEXT_HAS_NO_OWNERDOC); //"context does not have an owner document!");
    }
    String xkeyname = getArg0().execute(xctxt).str();
    QName keyname = new QName(xkeyname, xctxt.getNamespaceContext());
    XObject arg = getArg1().execute(xctxt);
    boolean argIsNodeSetDTM = (XObject.CLASS_NODESET == arg.getType());
    KeyManager kmgr = transformer.getKeyManager();
    // Don't bother with nodeset logic if the thing is only one node.
    if (argIsNodeSetDTM) {
        XNodeSet ns = (XNodeSet) arg;
        ns.setShouldCacheNodes(true);
        int len = ns.getLength();
        if (len <= 1)
            argIsNodeSetDTM = false;
    }
    if (argIsNodeSetDTM) {
        Hashtable usedrefs = null;
        DTMIterator ni = arg.iter();
        int pos;
        UnionPathIterator upi = new UnionPathIterator();
        upi.exprSetParent(this);
        while (DTM.NULL != (pos = ni.nextNode())) {
            dtm = xctxt.getDTM(pos);
            XMLString ref = dtm.getStringValue(pos);
            if (null == ref)
                continue;
            if (null == usedrefs)
                usedrefs = new Hashtable();
            if (usedrefs.get(ref) != null) {
                // We already have 'em.
                continue;
            } else {
                // ISTRUE being used as a dummy value.
                usedrefs.put(ref, ISTRUE);
            }
            XNodeSet nl = kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref, xctxt.getNamespaceContext());
            nl.setRoot(xctxt.getCurrentNode(), xctxt);
            //        try
            //        {
            upi.addIterator(nl);
        //        }
        //        catch(CloneNotSupportedException cnse)
        //        {
        //          // will never happen.
        //        }
        //mnodeset.addNodesInDocOrder(nl, xctxt); needed??
        }
        int current = xctxt.getCurrentNode();
        upi.setRoot(current, xctxt);
        nodes = new XNodeSet(upi);
    } else {
        XMLString ref = arg.xstr();
        nodes = kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref, xctxt.getNamespaceContext());
        nodes.setRoot(xctxt.getCurrentNode(), xctxt);
    }
    return nodes;
}