Java Code Examples for org.w3c.dom.Node#ELEMENT_NODE

/**
 * Method lengthUnknownElement
 * NOTE possibly buggy.
 * @return the number of the UnknownElement tags
 */
public int lengthUnknownElement() {
    int res = 0;
    NodeList nl = this.constructionElement.getChildNodes();

    for (int i = 0; i < nl.getLength(); i++) {
        Node current = nl.item(i);

        /**
         * $todo$ using this method, we don't see unknown Elements
         *  from Signature NS; revisit
         */
        if ((current.getNodeType() == Node.ELEMENT_NODE)
            && current.getNamespaceURI().equals(Constants.SignatureSpecNS)) {
            res++;
        }
    }

    return res;
}
 

private static void append(Node node, int indentationLevel, Map<String, String> namespaces, StringBuilder builder) {
  switch (node.getNodeType()) {
    case Node.DOCUMENT_NODE:
      appendDocument(node, indentationLevel, namespaces, builder);
      break;
    case Node.ELEMENT_NODE:
      appendElement(node, indentationLevel, namespaces, builder);
      break;
    case Node.ATTRIBUTE_NODE:
      appendAttribute(node, namespaces, builder);
      break;
    case Node.TEXT_NODE:
      appendText(node, builder);
      break;
    case Node.COMMENT_NODE:
      appendComment(node, indentationLevel, builder);
      break;
    default:
      throw new UnsupportedOperationException("Unhandled node type: " + node.getNodeType());
  }
}
 

/**
 * Scan through Element named apply-for.
 */
void visitElement_apply_for(Element element) {
    // <apply-for>
    // element.getValue();
    withPlugins = new LinkedHashSet<>();
    String plugins = element.getAttribute("plugins");
    if (plugins != null) {
        withPlugins.addAll(Arrays.asList(plugins.split(",\\s*")));
    }
    NodeList nodes = element.getChildNodes();
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            Element nodeElement = (Element) node;
            if (nodeElement.getTagName().equals("action")) {
                visitElement_action(nodeElement);
            }
        }
    }
    withPlugins = Collections.<String>emptySet();
}
 

private void parseJavaTypeResolver(Context context, Node node) {
    JavaTypeResolverConfiguration javaTypeResolverConfiguration = new JavaTypeResolverConfiguration();

    context.setJavaTypeResolverConfiguration(javaTypeResolverConfiguration);

    Properties attributes = parseAttributes(node);
    String type = attributes.getProperty("type"); //$NON-NLS-1$

    if (stringHasValue(type)) {
        javaTypeResolverConfiguration.setConfigurationType(type);
    }

    NodeList nodeList = node.getChildNodes();
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node childNode = nodeList.item(i);

        if (childNode.getNodeType() != Node.ELEMENT_NODE) {
            continue;
        }

        if ("property".equals(childNode.getNodeName())) { //$NON-NLS-1$
            parseProperty(javaTypeResolverConfiguration, childNode);
        }
    }
}
 

/**
 * Serialize a {@link Document}.
 *
 * @param d the document to serialize.
 */
public final void serialize(Document d) throws IOException {
    reset();
    encodeHeader(false);
    encodeInitialVocabulary();

    final NodeList nl = d.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        final Node n = nl.item(i);
        switch (n.getNodeType()) {
            case Node.ELEMENT_NODE:
                serializeElement(n);
                break;
            case Node.COMMENT_NODE:
                serializeComment(n);
                break;
            case Node.PROCESSING_INSTRUCTION_NODE:
                serializeProcessingInstruction(n);
                break;
        }
    }
    encodeDocumentTermination();
}
 

/**
 * Method lengthUnknownElement
 * NOTE possibly buggy.
 * @return the number of the UnknownElement tags
 */
public int lengthUnknownElement() {
    int res = 0;
    NodeList nl = this.constructionElement.getChildNodes();

    for (int i = 0; i < nl.getLength(); i++) {
        Node current = nl.item(i);

        /**
         * $todo$ using this method, we don't see unknown Elements
         *  from Signature NS; revisit
         */
        if ((current.getNodeType() == Node.ELEMENT_NODE)
            && current.getNamespaceURI().equals(Constants.SignatureSpecNS)) {
            res++;
        }
    }

    return res;
}
 

private boolean hasAnyChildElement() {
    Node currentNode = getFirstChild();
    while (currentNode != null) {
        if (currentNode.getNodeType() == Node.ELEMENT_NODE)
            return true;
        currentNode = currentNode.getNextSibling();
    }
    return false;
}
 

/**
 * Checks whether the given element has a tools:merge=override or tools:merge=remove attribute.
 * @param node The node to check.
 * @return True if the element has a tools:merge=override or tools:merge=remove attribute.
 */
private boolean hasOverrideOrRemoveTag(@Nullable Node node) {
    if (node == null || node.getNodeType() != Node.ELEMENT_NODE) {
        return false;
    }
    NamedNodeMap attrs = node.getAttributes();
    Node merge = attrs.getNamedItemNS(TOOLS_URI, MERGE_ATTR);
    String value = merge == null ? null : merge.getNodeValue();
    return MERGE_OVERRIDE.equals(value) || MERGE_REMOVE.equals(value);
}
 

private Optional<String> findAndCompareNode(
        @NonNull XmlElement otherElement,
        @NonNull List<Node> otherElementChildren,
        @NonNull XmlElement childNode) {

    Optional<String> message = Optional.absent();
    for (Node potentialNode : otherElementChildren) {
        if (potentialNode.getNodeType() == Node.ELEMENT_NODE) {
            @NonNull XmlElement otherChildNode = new XmlElement((Element) potentialNode, mDocument);
            if (childNode.getType() == otherChildNode.getType()) {
                // check if this element uses a key.
                if (childNode.getType().getNodeKeyResolver().getKeyAttributesNames()
                        .isEmpty()) {
                    // no key... try all the other elements, if we find one equal, we are done.
                    message = childNode.compareTo(otherChildNode);
                    if (!message.isPresent()) {
                        return Optional.absent();
                    }
                } else {
                    // key...
                    if (childNode.getKey() == null) {
                        // other key MUST also be null.
                        if (otherChildNode.getKey() == null) {
                            return childNode.compareTo(otherChildNode);
                        }
                    } else {
                        if (childNode.getKey().equals(otherChildNode.getKey())) {
                            return childNode.compareTo(otherChildNode);
                        }
                    }
                }
            }
        }
    }
    return message.isPresent()
            ? message
            : Optional.of(String.format("Child %1$s not found in document %2$s",
                    childNode.getId(),
                    otherElement.printPosition()));
}
 

/**
 * Parses job info from "qstat -x"
 *
 * @param data
 *            the stream to get the xml data from
 * @return a list containing all queue names found
 * @throws XenonException
 *             if the file could not be parsed
 * @throws XenonException
 *             if the server version is not compatible with this adaptor
 */
protected Map<String, Map<String, String>> parseJobInfos(String data) throws XenonException {
    if (data.trim().isEmpty()) {
        return new HashMap<>();
    }
    Document document = parseDocument(data);

    LOGGER.debug("root node of xml file: " + document.getDocumentElement().getNodeName());
    NodeList nodes = document.getDocumentElement().getChildNodes();
    int numNodes = nodes.getLength();
    Map<String, Map<String, String>> result = new HashMap<>();

    for (int i = 0; i < numNodes; i++) {
        Node node = nodes.item(i);

        if (node.getNodeType() == Node.ELEMENT_NODE) {
            Map<String, String> jobInfo = new HashMap<>();
            recursiveMapFromElement(node, jobInfo);

            String jobId = jobInfo.get("Job_Id");
            if (jobId == null || jobId.isEmpty()) {
                throw new XenonException(ADAPTOR_NAME, "found job in queue with no job number");
            }

            result.put(jobId, jobInfo);
        }
    }

    return result;
}
 

void parse(Node node) {

      if (node.getNodeType() == Node.ELEMENT_NODE) {
        // Look for <a> tag
        if ("a".equalsIgnoreCase(node.getNodeName())) {
          NamedNodeMap attrs = node.getAttributes();
          Node hrefNode = attrs.getNamedItem("href");
          // Checks that it contains a href attribute
          if (hrefNode != null) {
            Node relNode = attrs.getNamedItem("rel");
            // Checks that it contains a rel attribute too
            if (relNode != null) {
              // Finaly checks that rel=tag
              if ("tag".equalsIgnoreCase(relNode.getNodeValue())) {
                String tag = parseTag(hrefNode.getNodeValue());
                if (!StringUtil.isEmpty(tag)) {
                  tags.add(tag);
                }
              }
            }
          }
        }
      }
      
      // Recurse
      NodeList children = node.getChildNodes();
      for (int i=0; children != null && i<children.getLength(); i++) {
        parse(children.item(i));
      }
    }
 

/**
     *
     * DOM Level 3
     * Look up the prefix associated to the given namespace URI, starting from this node.
     *
     * @param namespaceURI
     * @return the prefix for the namespace
     */
    @Override
    public String lookupPrefix(String namespaceURI){

        // REVISIT: When Namespaces 1.1 comes out this may not be true
        // Prefix can't be bound to null namespace
        if (namespaceURI == null) {
            return null;
        }

        short type = this.getNodeType();

        switch (type) {
/*
        case Node.ELEMENT_NODE: {

                String namespace = this.getNamespaceURI(); // to flip out children
                return lookupNamespacePrefix(namespaceURI, (ElementImpl)this);
            }

        case Node.DOCUMENT_NODE:{
                return((NodeImpl)((Document)this).getDocumentElement()).lookupPrefix(namespaceURI);
            }
*/
        case Node.ENTITY_NODE :
        case Node.NOTATION_NODE:
        case Node.DOCUMENT_FRAGMENT_NODE:
        case Node.DOCUMENT_TYPE_NODE:
            // type is unknown
            return null;
        case Node.ATTRIBUTE_NODE:{
                if (this.getOwnerElement().getNodeType() == Node.ELEMENT_NODE) {
                    return getOwnerElement().lookupPrefix(namespaceURI);

                }
                return null;
            }
        default:{
/*
                NodeImpl ancestor = (NodeImpl)getElementAncestor(this);
                if (ancestor != null) {
                    return ancestor.lookupPrefix(namespaceURI);
                }
*/
                return null;
            }
         }
    }
 

private List<List<String>> getAllSchemaNameSpace(InputStream inputStream)
		throws ParserConfigurationException, SAXException, IOException{
	List<List<String>> schemaNameSpaces = new ArrayList <>();
	
	DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
	dbFactory.setFeature(
                "http://xml.org/sax/features/namespaces", true);
	dbFactory.setFeature(
                "http://apache.org/xml/features/validation/schema",
                false);
	dbFactory.setFeature(
                "http://apache.org/xml/features/validation/schema-full-checking",
                true);
	dbFactory.setFeature(
                "http://xml.org/sax/features/external-general-entities",
                false);
	dbFactory.setFeature(
                "http://xml.org/sax/features/external-parameter-entities",
                false);
	dbFactory.setFeature(
                "http://apache.org/xml/features/disallow-doctype-decl",
                true);
	dbFactory.setFeature(
                "http://javax.xml.XMLConstants/feature/secure-processing",
                true);
	
	DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
	Document doc = dBuilder.parse(inputStream);
	doc.getDocumentElement().normalize();
	NodeList nList = doc.getElementsByTagName(SCHEMA);
	
	for (int temp = 0; temp < nList.getLength(); temp++) {
		Node nNode = nList.item(temp);
		List<String> nameSpaces = new ArrayList <>();
		if (nNode.getNodeType() == Node.ELEMENT_NODE) {
			Element eElement = (Element) nNode;
			NamedNodeMap attributes = eElement.getAttributes();
			int len = attributes.getLength();
			for(int i =0;i<len;i++){
				// check for all atributes begining with name xmlns or xmlns:
				String attrName = attributes.item(i).getNodeName();
				if( XMLNS.equals(attrName) || attrName.startsWith(XMLNS+":")){
					nameSpaces.add(attributes.item(i).getNodeValue());
				}
			}
		}
		schemaNameSpaces.add(nameSpaces);
	}
return schemaNameSpaces;
}
 

/**
     *
     * DOM Level 3 - Experimental:
     * Look up the prefix associated to the given namespace URI, starting from this node.
     *
     * @param namespaceURI
     * @return the prefix for the namespace
     */
    public String lookupPrefix(String namespaceURI){

        // REVISIT: When Namespaces 1.1 comes out this may not be true
        // Prefix can't be bound to null namespace
        if (namespaceURI == null) {
            return null;
        }

        short type = this.getNodeType();

        switch (type) {
/*
        case Node.ELEMENT_NODE: {

                String namespace = this.getNamespaceURI(); // to flip out children
                return lookupNamespacePrefix(namespaceURI, (ElementImpl)this);
            }

        case Node.DOCUMENT_NODE:{
                return((NodeImpl)((Document)this).getDocumentElement()).lookupPrefix(namespaceURI);
            }
*/
        case Node.ENTITY_NODE :
        case Node.NOTATION_NODE:
        case Node.DOCUMENT_FRAGMENT_NODE:
        case Node.DOCUMENT_TYPE_NODE:
            // type is unknown
            return null;
        case Node.ATTRIBUTE_NODE:{
                if (this.getOwnerElement().getNodeType() == Node.ELEMENT_NODE) {
                    return getOwnerElement().lookupPrefix(namespaceURI);

                }
                return null;
            }
        default:{
/*
                NodeImpl ancestor = (NodeImpl)getElementAncestor(this);
                if (ancestor != null) {
                    return ancestor.lookupPrefix(namespaceURI);
                }
*/
                return null;
            }
         }
    }
 

@NonNull
private static String getMarkupText(@NonNull NodeList children) {
    StringBuilder sb = new StringBuilder();

    for (int i = 0, n = children.getLength(); i < n; i++) {
        Node child = children.item(i);

        short nodeType = child.getNodeType();

        switch (nodeType) {
            case Node.ELEMENT_NODE: {
                Element element = (Element) child;
                String tagName = element.getTagName();
                sb.append('<');
                sb.append(tagName);

                NamedNodeMap attributes = element.getAttributes();
                int attributeCount = attributes.getLength();
                if (attributeCount > 0) {
                    for (int j = 0; j < attributeCount; j++) {
                        Node attribute = attributes.item(j);
                        sb.append(' ');
                        sb.append(attribute.getNodeName());
                        sb.append('=').append('"');
                        XmlUtils.appendXmlAttributeValue(sb, attribute.getNodeValue());
                        sb.append('"');
                    }
                }
                sb.append('>');

                NodeList childNodes = child.getChildNodes();
                if (childNodes.getLength() > 0) {
                    sb.append(getMarkupText(childNodes));
                }

                sb.append('<');
                sb.append('/');
                sb.append(tagName);
                sb.append('>');

                break;
            }
            case Node.TEXT_NODE:
                sb.append(child.getNodeValue());
                break;
            case Node.CDATA_SECTION_NODE:
                sb.append(child.getNodeValue());
                break;
        }
    }

    return sb.toString();
}
 

/**
 * This method is a tree-search to help prevent against wrapping attacks. It checks that no other
 * Element than the given "knownElement" argument has an ID attribute that matches the "value"
 * argument, which is the ID value of "knownElement". If this is the case then "false" is returned.
 */
public static boolean protectAgainstWrappingAttack(
    Node startNode, Element knownElement, String value
) {
    Node startParent = startNode.getParentNode();
    Node processedNode = null;

    String id = value.trim();
    if (!id.isEmpty() && id.charAt(0) == '#') {
        id = id.substring(1);
    }

    while (startNode != null) {
        if (startNode.getNodeType() == Node.ELEMENT_NODE) {
            Element se = (Element) startNode;

            NamedNodeMap attributes = se.getAttributes();
            if (attributes != null) {
                for (int i = 0; i < attributes.getLength(); i++) {
                    Attr attr = (Attr)attributes.item(i);
                    if (attr.isId() && id.equals(attr.getValue()) && se != knownElement) {
                        log.log(java.util.logging.Level.FINE, "Multiple elements with the same 'Id' attribute value!");
                        return false;
                    }
                }
            }
        }

        processedNode = startNode;
        startNode = startNode.getFirstChild();

        // no child, this node is done.
        if (startNode == null) {
            // close node processing, get sibling
            startNode = processedNode.getNextSibling();
        }

        // no more siblings, get parent, all children
        // of parent are processed.
        while (startNode == null) {
            processedNode = processedNode.getParentNode();
            if (processedNode == startParent) {
                return true;
            }
            // close parent node processing (processed node now)
            startNode = processedNode.getNextSibling();
        }
    }
    return true;
}
 

/**
     * DOM Level 3
     * Look up the namespace URI associated to the given prefix, starting from this node.
     * Use lookupNamespaceURI(null) to lookup the default namespace
     *
     * @param namespaceURI
     * @return th URI for the namespace
     * @since DOM Level 3
     */
    @Override
    public String lookupNamespaceURI(String specifiedPrefix) {
        short type = this.getNodeType();
        switch (type) {
        case Node.ELEMENT_NODE : {

                String namespace = this.getNamespaceURI();
                String prefix = this.getPrefix();
                if (namespace !=null) {
                    // REVISIT: is it possible that prefix is empty string?
                    if (specifiedPrefix== null && prefix==specifiedPrefix) {
                        // looking for default namespace
                        return namespace;
                    } else if (prefix != null && prefix.equals(specifiedPrefix)) {
                        // non default namespace
                        return namespace;
                    }
                }
                if (this.hasAttributes()) {
                    NamedNodeMap map = this.getAttributes();
                    int length = map.getLength();
                    for (int i=0;i<length;i++) {
                        Node attr = map.item(i);
                        String attrPrefix = attr.getPrefix();
                        String value = attr.getNodeValue();
                        namespace = attr.getNamespaceURI();
                        if (namespace !=null && namespace.equals("http://www.w3.org/2000/xmlns/")) {
                            // at this point we are dealing with DOM Level 2 nodes only
                            if (specifiedPrefix == null &&
                                attr.getNodeName().equals("xmlns")) {
                                // default namespace
                                return value;
                            } else if (attrPrefix !=null &&
                                       attrPrefix.equals("xmlns") &&
                                       attr.getLocalName().equals(specifiedPrefix)) {
                 // non default namespace
                                return value;
                            }
                        }
                    }
                }
                /*
                NodeImpl ancestor = (NodeImpl)getElementAncestor(this);
                if (ancestor != null) {
                    return ancestor.lookupNamespaceURI(specifiedPrefix);
                }
                */

                return null;


            }
/*
        case Node.DOCUMENT_NODE : {
                return((NodeImpl)((Document)this).getDocumentElement()).lookupNamespaceURI(specifiedPrefix) ;
            }
*/
        case Node.ENTITY_NODE :
        case Node.NOTATION_NODE:
        case Node.DOCUMENT_FRAGMENT_NODE:
        case Node.DOCUMENT_TYPE_NODE:
            // type is unknown
            return null;
        case Node.ATTRIBUTE_NODE:{
                if (this.getOwnerElement().getNodeType() == Node.ELEMENT_NODE) {
                    return getOwnerElement().lookupNamespaceURI(specifiedPrefix);

                }
                return null;
            }
        default:{
           /*
                NodeImpl ancestor = (NodeImpl)getElementAncestor(this);
                if (ancestor != null) {
                    return ancestor.lookupNamespaceURI(specifiedPrefix);
                }
             */
                return null;
            }

        }
    }
 

private void processChildNode(Node n, XhtmlNode xn) throws FHIRException {
  switch (n.getNodeType()) {
  case Node.ATTRIBUTE_NODE: 
  case Node.CDATA_SECTION_NODE:
  case Node.DOCUMENT_FRAGMENT_NODE: 
  case Node.DOCUMENT_TYPE_NODE: 
  case Node.DOCUMENT_NODE: 
  case Node.ENTITY_NODE: 
  case Node.PROCESSING_INSTRUCTION_NODE:
  case Node.NOTATION_NODE:
    return;
  case Node.ENTITY_REFERENCE_NODE: 
    throw new Error("Not handled yet");
  case Node.COMMENT_NODE: 
    xn.addComment(n.getTextContent());
    return;
  case Node.TEXT_NODE: 
    if (!Utilities.isWhitespace(n.getTextContent()))
      xn.addText(n.getTextContent());
    return;
  case Node.ELEMENT_NODE:
    Element e = (Element) n;
    if (n.getNodeName().equals("br"))
      processBreak(e, xn);
    else if (n.getNodeName().equals("caption"))
      processCaption(e, xn);
    else if (n.getNodeName().equals("col"))
      processCol(e, xn);
    else if (n.getNodeName().equals("colgroup"))
      processColGroup(e, xn);
    else if (n.getNodeName().equals("content"))
      processContent(e, xn);
    else if (n.getNodeName().equals("footnote"))
      processFootNote(e, xn);
    else if (n.getNodeName().equals("footnoteRef"))
      processFootNodeRef(e, xn);
    else if (n.getNodeName().equals("item"))
      processItem(e, xn);
    else if (n.getNodeName().equals("linkHtml"))
      processlinkHtml(e, xn);
    else if (n.getNodeName().equals("list"))
      processList(e, xn);
    else if (n.getNodeName().equals("paragraph"))
      processParagraph(e, xn);
    else if (n.getNodeName().equals("renderMultiMedia"))
      processRenderMultiMedia(e, xn);
    else if (n.getNodeName().equals("sub"))
      processSub(e, xn);
    else if (n.getNodeName().equals("sup"))
      processSup(e, xn);
    else if (n.getNodeName().equals("table"))
      processTable(e, xn);
    else if (n.getNodeName().equals("tbody"))
      processTBody(e, xn);
    else if (n.getNodeName().equals("td"))
      processTd(e, xn);
    else if (n.getNodeName().equals("tfoot"))
      processTFoot(e, xn);
    else if (n.getNodeName().equals("th"))
      processTh(e, xn);
    else if (n.getNodeName().equals("thead"))
      processTHead(e, xn);
    else if (n.getNodeName().equals("tr"))
      processTr(e, xn);
    else
      throw new FHIRException("Unknown element "+n.getNodeName());
  }
}
 

/**
 * Creates a <code>DOMKeyInfo</code> from XML.
 *
 * @param kiElem KeyInfo element
 */
public DOMKeyInfo(Element kiElem, XMLCryptoContext context,
                  Provider provider)
    throws MarshalException
{
    // get Id attribute, if specified
    Attr attr = kiElem.getAttributeNodeNS(null, "Id");
    if (attr != null) {
        id = attr.getValue();
        kiElem.setIdAttributeNode(attr, true);
    } else {
        id = null;
    }

    // get all children nodes
    NodeList nl = kiElem.getChildNodes();
    int length = nl.getLength();
    if (length < 1) {
        throw new MarshalException
            ("KeyInfo must contain at least one type");
    }
    List<XMLStructure> content = new ArrayList<XMLStructure>(length);
    for (int i = 0; i < length; i++) {
        Node child = nl.item(i);
        // ignore all non-Element nodes
        if (child.getNodeType() != Node.ELEMENT_NODE) {
            continue;
        }
        Element childElem = (Element)child;
        String localName = childElem.getLocalName();
        if (localName.equals("X509Data")) {
            content.add(new DOMX509Data(childElem));
        } else if (localName.equals("KeyName")) {
            content.add(new DOMKeyName(childElem));
        } else if (localName.equals("KeyValue")) {
            content.add(DOMKeyValue.unmarshal(childElem));
        } else if (localName.equals("RetrievalMethod")) {
            content.add(new DOMRetrievalMethod(childElem,
                                               context, provider));
        } else if (localName.equals("PGPData")) {
            content.add(new DOMPGPData(childElem));
        } else { //may be MgmtData, SPKIData or element from other namespace
            content.add(new javax.xml.crypto.dom.DOMStructure((childElem)));
        }
    }
    keyInfoTypes = Collections.unmodifiableList(content);
}
 

/**
 * Returns the last child element of the specified node, or null if there
 * is no such element.
 *
 * @param node the node
 * @return the last child element of the specified node, or null if there
 *    is no such element
 * @throws NullPointerException if <code>node == null</code>
 */
public static Element getLastChildElement(Node node) {
    Node child = node.getLastChild();
    while (child != null && child.getNodeType() != Node.ELEMENT_NODE) {
        child = child.getPreviousSibling();
    }
    return (Element)child;
}