Examples with DTMIterator org.apache.xml.dtm.DTMIterator used on opensource projects

Example 11 with DTMIterator

use of org.apache.xml.dtm.DTMIterator in project robovm by robovm.

the class NotEqualComparator method compare.

/**
   * Tell if one object is less than the other.
   *
   * @param obj2 Object to compare this nodeset to
   * @param comparator Comparator to use
   *
   * @return See the comments below for each object type comparison 
   *
   * @throws javax.xml.transform.TransformerException
   */
public boolean compare(XObject obj2, Comparator comparator) throws javax.xml.transform.TransformerException {
    boolean result = false;
    int type = obj2.getType();
    if (XObject.CLASS_NODESET == type) {
        // %OPT% This should be XMLString based instead of string based...
        // From http://www.w3.org/TR/xpath: 
        // If both objects to be compared are node-sets, then the comparison 
        // will be true if and only if there is a node in the first node-set 
        // and a node in the second node-set such that the result of performing 
        // the comparison on the string-values of the two nodes is true.
        // Note this little gem from the draft:
        // NOTE: If $x is bound to a node-set, then $x="foo" 
        // does not mean the same as not($x!="foo"): the former 
        // is true if and only if some node in $x has the string-value 
        // foo; the latter is true if and only if all nodes in $x have 
        // the string-value foo.
        DTMIterator list1 = iterRaw();
        DTMIterator list2 = ((XNodeSet) obj2).iterRaw();
        int node1;
        java.util.Vector node2Strings = null;
        while (DTM.NULL != (node1 = list1.nextNode())) {
            XMLString s1 = getStringFromNode(node1);
            if (null == node2Strings) {
                int node2;
                while (DTM.NULL != (node2 = list2.nextNode())) {
                    XMLString s2 = getStringFromNode(node2);
                    if (comparator.compareStrings(s1, s2)) {
                        result = true;
                        break;
                    }
                    if (null == node2Strings)
                        node2Strings = new java.util.Vector();
                    node2Strings.addElement(s2);
                }
            } else {
                int n = node2Strings.size();
                for (int i = 0; i < n; i++) {
                    if (comparator.compareStrings(s1, (XMLString) node2Strings.elementAt(i))) {
                        result = true;
                        break;
                    }
                }
            }
        }
        list1.reset();
        list2.reset();
    } else if (XObject.CLASS_BOOLEAN == type) {
        // From http://www.w3.org/TR/xpath: 
        // If one object to be compared is a node-set and the other is a boolean, 
        // then the comparison will be true if and only if the result of 
        // performing the comparison on the boolean and on the result of 
        // converting the node-set to a boolean using the boolean function 
        // is true.
        double num1 = bool() ? 1.0 : 0.0;
        double num2 = obj2.num();
        result = comparator.compareNumbers(num1, num2);
    } else if (XObject.CLASS_NUMBER == type) {
        // From http://www.w3.org/TR/xpath: 
        // If one object to be compared is a node-set and the other is a number, 
        // then the comparison will be true if and only if there is a 
        // node in the node-set such that the result of performing the 
        // comparison on the number to be compared and on the result of 
        // converting the string-value of that node to a number using 
        // the number function is true. 
        DTMIterator list1 = iterRaw();
        double num2 = obj2.num();
        int node;
        while (DTM.NULL != (node = list1.nextNode())) {
            double num1 = getNumberFromNode(node);
            if (comparator.compareNumbers(num1, num2)) {
                result = true;
                break;
            }
        }
        list1.reset();
    } else if (XObject.CLASS_RTREEFRAG == type) {
        XMLString s2 = obj2.xstr();
        DTMIterator list1 = iterRaw();
        int node;
        while (DTM.NULL != (node = list1.nextNode())) {
            XMLString s1 = getStringFromNode(node);
            if (comparator.compareStrings(s1, s2)) {
                result = true;
                break;
            }
        }
        list1.reset();
    } else if (XObject.CLASS_STRING == type) {
        // From http://www.w3.org/TR/xpath: 
        // If one object to be compared is a node-set and the other is a 
        // string, then the comparison will be true if and only if there 
        // is a node in the node-set such that the result of performing 
        // the comparison on the string-value of the node and the other 
        // string is true. 
        XMLString s2 = obj2.xstr();
        DTMIterator list1 = iterRaw();
        int node;
        while (DTM.NULL != (node = list1.nextNode())) {
            XMLString s1 = getStringFromNode(node);
            if (comparator.compareStrings(s1, s2)) {
                result = true;
                break;
            }
        }
        list1.reset();
    } else {
        result = comparator.compareNumbers(this.num(), obj2.num());
    }
    return result;
}

Example 12 with DTMIterator

use of org.apache.xml.dtm.DTMIterator in project j2objc by google.

the class XPathContext method createDTMIterator.

/**
   * Create a new <code>DTMIterator</code> that holds exactly one node.
   *
   * @param node The node handle that the DTMIterator will iterate to.
   *
   * @return The newly created <code>DTMIterator</code>.
   */
public DTMIterator createDTMIterator(int node) {
    // DescendantIterator iter = new DescendantIterator();
    DTMIterator iter = new org.apache.xpath.axes.OneStepIteratorForward(Axis.SELF);
    iter.setRoot(node, this);
    return iter;
// return m_dtmManager.createDTMIterator(node);
}

Example 13 with DTMIterator

use of org.apache.xml.dtm.DTMIterator in project j2objc by google.

the class ElemForEach method transformSelectedNodes.

/**
   * Perform a query if needed, and call transformNode for each child.
   *
   * @param transformer non-null reference to the the current transform-time state.
   *
   * @throws TransformerException Thrown in a variety of circumstances.
   * @xsl.usage advanced
   */
public void transformSelectedNodes(TransformerImpl transformer) throws TransformerException {
    final XPathContext xctxt = transformer.getXPathContext();
    final int sourceNode = xctxt.getCurrentNode();
    DTMIterator sourceNodes = m_selectExpression.asIterator(xctxt, sourceNode);
    try {
        final Vector keys = (m_sortElems == null) ? null : transformer.processSortKeys(this, sourceNode);
        // Sort if we need to.
        if (null != keys)
            sourceNodes = sortNodes(xctxt, keys, sourceNodes);
        xctxt.pushCurrentNode(DTM.NULL);
        IntStack currentNodes = xctxt.getCurrentNodeStack();
        xctxt.pushCurrentExpressionNode(DTM.NULL);
        IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();
        xctxt.pushSAXLocatorNull();
        xctxt.pushContextNodeList(sourceNodes);
        transformer.pushElemTemplateElement(null);
        // pushParams(transformer, xctxt);
        // Should be able to get this from the iterator but there must be a bug.
        DTM dtm = xctxt.getDTM(sourceNode);
        int docID = sourceNode & DTMManager.IDENT_DTM_DEFAULT;
        int child;
        while (DTM.NULL != (child = sourceNodes.nextNode())) {
            currentNodes.setTop(child);
            currentExpressionNodes.setTop(child);
            if ((child & DTMManager.IDENT_DTM_DEFAULT) != docID) {
                dtm = xctxt.getDTM(child);
                docID = child & DTMManager.IDENT_DTM_DEFAULT;
            }
            //final int exNodeType = dtm.getExpandedTypeID(child);
            final int nodeType = dtm.getNodeType(child);
            // each of them.
            for (ElemTemplateElement t = this.m_firstChild; t != null; t = t.m_nextSibling) {
                xctxt.setSAXLocator(t);
                transformer.setCurrentElement(t);
                t.execute(transformer);
            }
            // FuncDocument and here.
            if (m_doc_cache_off) {
                if (DEBUG)
                    System.out.println("JJK***** CACHE RELEASE *****\n" + "\tdtm=" + dtm.getDocumentBaseURI());
                // NOTE: This will work because this is _NOT_ a shared DTM, and thus has
                // only a single Document node. If it could ever be an RTF or other
                // shared DTM, this would require substantial rework.
                xctxt.getSourceTreeManager().removeDocumentFromCache(dtm.getDocument());
                xctxt.release(dtm, false);
            }
        }
    } finally {
        xctxt.popSAXLocator();
        xctxt.popContextNodeList();
        transformer.popElemTemplateElement();
        xctxt.popCurrentExpressionNode();
        xctxt.popCurrentNode();
        sourceNodes.detach();
    }
}

Example 14 with DTMIterator

use of org.apache.xml.dtm.DTMIterator 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 15 with DTMIterator

use of org.apache.xml.dtm.DTMIterator in project j2objc by google.

the class XObjectFactory method create.

/**
   * Create the right XObject based on the type of the object passed.
   * This function <emph>can</emph> make an XObject that exposes DOM Nodes, NodeLists, and 
   * NodeIterators to the XSLT stylesheet as node-sets.
   *
   * @param val The java object which this object will wrap.
   * @param xctxt The XPath context.
   *
   * @return the right XObject based on the type of the object passed.
   */
public static XObject create(Object val, XPathContext xctxt) {
    XObject result;
    if (val instanceof XObject) {
        result = (XObject) val;
    } else if (val instanceof String) {
        result = new XString((String) val);
    } else if (val instanceof Boolean) {
        result = new XBoolean((Boolean) val);
    } else if (val instanceof Number) {
        result = new XNumber(((Number) val));
    } else if (val instanceof DTM) {
        DTM dtm = (DTM) val;
        try {
            int dtmRoot = dtm.getDocument();
            DTMAxisIterator iter = dtm.getAxisIterator(Axis.SELF);
            iter.setStartNode(dtmRoot);
            DTMIterator iterator = new OneStepIterator(iter, Axis.SELF);
            iterator.setRoot(dtmRoot, xctxt);
            result = new XNodeSet(iterator);
        } catch (Exception ex) {
            throw new org.apache.xml.utils.WrappedRuntimeException(ex);
        }
    } else if (val instanceof DTMAxisIterator) {
        DTMAxisIterator iter = (DTMAxisIterator) val;
        try {
            DTMIterator iterator = new OneStepIterator(iter, Axis.SELF);
            iterator.setRoot(iter.getStartNode(), xctxt);
            result = new XNodeSet(iterator);
        } catch (Exception ex) {
            throw new org.apache.xml.utils.WrappedRuntimeException(ex);
        }
    } else if (val instanceof DTMIterator) {
        result = new XNodeSet((DTMIterator) val);
    } else // might also implement a Node!
    if (val instanceof org.w3c.dom.Node) {
        result = new XNodeSetForDOM((org.w3c.dom.Node) val, xctxt);
    } else // also implement NodeList.
    if (val instanceof org.w3c.dom.NodeList) {
        result = new XNodeSetForDOM((org.w3c.dom.NodeList) val, xctxt);
    } else if (val instanceof org.w3c.dom.traversal.NodeIterator) {
        result = new XNodeSetForDOM((org.w3c.dom.traversal.NodeIterator) val, xctxt);
    } else {
        result = new XObject(val);
    }
    return result;
}