Java Code Examples for org.w3c.dom.Element#hasAttributeNS()

protected void namespace(Element element, String prefix, String uri) {
    String qname;
    if ("".equals(prefix) || prefix == null) {
        qname = "xmlns";
    } else {
        qname = "xmlns:" + prefix;
    }

    // older version of Xerces (I confirmed that the bug is gone with Xerces 2.4.0)
    // have a problem of re-setting the same namespace attribute twice.
    // work around this bug removing it first.
    if (element.hasAttributeNS("http://www.w3.org/2000/xmlns/", qname)) {
        // further workaround for an old Crimson bug where the removeAttribtueNS
        // method throws NPE when the element doesn't have any attribute.
        // to be on the safe side, check the existence of attributes before
        // attempting to remove it.
        // for details about this bug, see org.apache.crimson.tree.ElementNode2
        // line 540 or the following message:
        // https://jaxb.dev.java.net/servlets/ReadMsg?list=users&msgNo=2767
        element.removeAttributeNS("http://www.w3.org/2000/xmlns/", qname);
    }
    // workaround until here

    element.setAttributeNS("http://www.w3.org/2000/xmlns/", qname, uri);
}
 

protected String getUnusedGenericNsPrefix() {
  synchronized(document) {
    Element documentElement = document.getDocumentElement();
    if (documentElement == null) {
      return GENERIC_NS_PREFIX + "0";
    }
    else {
      for (int i = 0; i < Integer.MAX_VALUE; i++) {
        if (!documentElement.hasAttributeNS(XMLNS_ATTRIBUTE_NS_URI, GENERIC_NS_PREFIX + i)) {
          return GENERIC_NS_PREFIX + i;
        }
      }
      throw new ModelException("Unable to find an unused namespace prefix");
    }
  }
}
 

public static String getAttribute(Element e, QName qn, String defaultValue) {
    String ns       = qn.getNamespaceURI();
    String ln       = qn.getLocalPart();
    String value;
    if ((ns == null) || (ns.length() == 0)) {
        if (e.hasAttribute(ln))
            value = e.getAttribute(ln);
        else
            value = defaultValue;
    } else {
        if (e.hasAttributeNS(ns, ln))
            value = e.getAttributeNS(ns, ln);
        else
            value = defaultValue;
    }
    return value;
}
 

protected void namespace(Element element, String prefix, String uri) {
    String qname;
    if ("".equals(prefix) || prefix == null) {
        qname = "xmlns";
    } else {
        qname = "xmlns:" + prefix;
    }

    // older version of Xerces (I confirmed that the bug is gone with Xerces 2.4.0)
    // have a problem of re-setting the same namespace attribute twice.
    // work around this bug removing it first.
    if (element.hasAttributeNS("http://www.w3.org/2000/xmlns/", qname)) {
        // further workaround for an old Crimson bug where the removeAttribtueNS
        // method throws NPE when the element doesn't have any attribute.
        // to be on the safe side, check the existence of attributes before
        // attempting to remove it.
        // for details about this bug, see org.apache.crimson.tree.ElementNode2
        // line 540 or the following message:
        // https://jaxb.dev.java.net/servlets/ReadMsg?list=users&msgNo=2767
        element.removeAttributeNS("http://www.w3.org/2000/xmlns/", qname);
    }
    // workaround until here

    element.setAttributeNS("http://www.w3.org/2000/xmlns/", qname, uri);
}
 

protected String findIDFromSamlToken(Element samlToken) {
    String id = null;
    if (samlToken != null) {
        QName elName = DOMUtils.getElementQName(samlToken);
        if (elName.equals(new QName(WSConstants.SAML_NS, "Assertion"))
            && samlToken.hasAttributeNS(null, "AssertionID")) {
            id = samlToken.getAttributeNS(null, "AssertionID");
        } else if (elName.equals(new QName(WSConstants.SAML2_NS, "Assertion"))
            && samlToken.hasAttributeNS(null, "ID")) {
            id = samlToken.getAttributeNS(null, "ID");
        }
        if (id == null) {
            id = samlToken.getAttributeNS(WSConstants.WSU_NS, "Id");
        }
    }
    return id;
}
 

protected void namespace(Element element, String prefix, String uri) {
    String qname;
    if ("".equals(prefix) || prefix == null) {
        qname = "xmlns";
    } else {
        qname = "xmlns:" + prefix;
    }

    // older version of Xerces (I confirmed that the bug is gone with Xerces 2.4.0)
    // have a problem of re-setting the same namespace attribute twice.
    // work around this bug removing it first.
    if (element.hasAttributeNS("http://www.w3.org/2000/xmlns/", qname)) {
        // further workaround for an old Crimson bug where the removeAttribtueNS
        // method throws NPE when the element doesn't have any attribute.
        // to be on the safe side, check the existence of attributes before
        // attempting to remove it.
        // for details about this bug, see org.apache.crimson.tree.ElementNode2
        // line 540 or the following message:
        // https://jaxb.dev.java.net/servlets/ReadMsg?list=users&msgNo=2767
        element.removeAttributeNS("http://www.w3.org/2000/xmlns/", qname);
    }
    // workaround until here

    element.setAttributeNS("http://www.w3.org/2000/xmlns/", qname, uri);
}
 

@Override
public void visitElement(@NonNull XmlContext context, @NonNull Element element) {
    if (!element.hasAttributeNS(ANDROID_URI, ATTR_CONTENT_DESCRIPTION)) {
        // Ignore views that are explicitly not important for accessibility
        if (VALUE_NO.equals(element.getAttributeNS(ANDROID_URI,
                ATTR_IMPORTANT_FOR_ACCESSIBILITY))) {
            return;
        }
        context.report(ISSUE, element, context.getLocation(element),
                "[Accessibility] Missing `contentDescription` attribute on image");
    } else {
        Attr attributeNode = element.getAttributeNodeNS(ANDROID_URI, ATTR_CONTENT_DESCRIPTION);
        String attribute = attributeNode.getValue();
        if (attribute.isEmpty() || attribute.equals("TODO")) { //$NON-NLS-1$
            context.report(ISSUE, attributeNode, context.getLocation(attributeNode),
                    "[Accessibility] Empty `contentDescription` attribute on image");
        }
    }
}
 

/**
 * Returns whether the given issue is suppressed in the given XML DOM node.
 *
 * @param issue the issue to be checked, or null to just check for "all"
 * @param node the DOM node containing the issue
 * @return true if there is a suppress annotation covering the specific
 *         issue in this class
 */
public boolean isSuppressed(@Nullable XmlContext context, @NonNull Issue issue,
        @Nullable org.w3c.dom.Node node) {
    if (node instanceof Attr) {
        node = ((Attr) node).getOwnerElement();
    }
    boolean checkComments = mClient.checkForSuppressComments()
            && context != null && context.containsCommentSuppress();
    while (node != null) {
        if (node.getNodeType() == org.w3c.dom.Node.ELEMENT_NODE) {
            Element element = (Element) node;
            if (element.hasAttributeNS(TOOLS_URI, ATTR_IGNORE)) {
                String ignore = element.getAttributeNS(TOOLS_URI, ATTR_IGNORE);
                if (ignore.indexOf(',') == -1) {
                    if (matches(issue, ignore)) {
                        return true;
                    }
                } else {
                    for (String id : ignore.split(",")) { //$NON-NLS-1$
                        if (matches(issue, id)) {
                            return true;
                        }
                    }
                }
            } else if (checkComments && context.isSuppressedWithComment(node, issue)) {
                return true;
            }
        }

        node = node.getParentNode();
    }

    return false;
}
 

private String getIdFromToken(Element token) {
    if (token != null) {
        // Try to find the "Id" on the token.
        if (token.hasAttributeNS(WSConstants.WSU_NS, "Id")) {
            return token.getAttributeNS(WSConstants.WSU_NS, "Id");
        } else if (token.hasAttributeNS(null, "ID")) {
            return token.getAttributeNS(null, "ID");
        } else if (token.hasAttributeNS(null, "AssertionID")) {
            return token.getAttributeNS(null, "AssertionID");
        }
    }
    return "";
}
 

/**
 * Removes all subelements with xsi:nil attribute as they are worthless.
 *
 * JAXB optimizes namespace declarations and moves them to common parent elements
 * but Fedora ingest ignores it. Then some ingested datastreams may be broken
 * as they miss optimized namespace declarations (xsi in this case).
 */
public static void removeNils(Element elm) {
    NodeList children = elm.getChildNodes();
    for (int i = children.getLength() - 1; i >= 0; i--) {
        Node item = children.item(i);
        if (item.getNodeType() == Node.ELEMENT_NODE) {
            Element itemElm = (Element) item;
            if (itemElm.hasAttributeNS(XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, "nil")) {
                itemElm.getParentNode().removeChild(item);
            } else {
                removeNils(itemElm);
            }
        }
    }
}
 

@Override
public void visitElement(@NonNull XmlContext context, @NonNull Element element) {
    String tag = element.getTagName();
    if (tag.equals(TAG_STYLE)) {
        scanTheme(element);
    } else if (tag.equals(TAG_ACTIVITY)) {
        scanActivity(context, element);
    } else if (tag.equals(TAG_APPLICATION)) {
        if (element.hasAttributeNS(ANDROID_URI, ATTR_THEME)) {
            mManifestTheme = element.getAttributeNS(ANDROID_URI, ATTR_THEME);
        }
    } else if (tag.equals(TAG_BITMAP)) {
        scanBitmap(context, element);
    }
}
 

private static boolean hasSpecifiedAttributes(Element el) {
  NamedNodeMap attrs = el.getAttributes();
  for (int i = 0, n = attrs.getLength(); i < n; ++i) {
    Attr a = (Attr) attrs.item(i);
    if (el.hasAttributeNS(a.getNamespaceURI(), a.getLocalName())) {
      return true;
    }
  }
  return false;
}
 

private boolean hasInstance(Element element) {
    return element.hasAttributeNS(XmlPreProcessor.deployNamespaceUri, INSTANCE_ATTRIBUTE);
}
 

/**
 * This is the work horse for {@link #circumventBug2650}.
 *
 * @param node
 * @see <A HREF="http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2650">
 * Namespace axis resolution is not XPath compliant </A>
 */
@SuppressWarnings("fallthrough")
private static void circumventBug2650internal(Node node) {
    Node parent = null;
    Node sibling = null;
    final String namespaceNs = Constants.NamespaceSpecNS;
    do {
        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE :
            Element element = (Element) node;
            if (!element.hasChildNodes()) {
                break;
            }
            if (element.hasAttributes()) {
                NamedNodeMap attributes = element.getAttributes();
                int attributesLength = attributes.getLength();

                for (Node child = element.getFirstChild(); child!=null;
                    child = child.getNextSibling()) {

                    if (child.getNodeType() != Node.ELEMENT_NODE) {
                        continue;
                    }
                    Element childElement = (Element) child;

                    for (int i = 0; i < attributesLength; i++) {
                        Attr currentAttr = (Attr) attributes.item(i);
                        if (!namespaceNs.equals(currentAttr.getNamespaceURI())) {
                            continue;
                        }
                        if (childElement.hasAttributeNS(namespaceNs,
                                                        currentAttr.getLocalName())) {
                            continue;
                        }
                        childElement.setAttributeNS(namespaceNs,
                                                    currentAttr.getName(),
                                                    currentAttr.getNodeValue());
                    }
                }
            }
        case Node.ENTITY_REFERENCE_NODE :
        case Node.DOCUMENT_NODE :
            parent = node;
            sibling = node.getFirstChild();
            break;
        }
        while ((sibling == null) && (parent != null)) {
            sibling = parent.getNextSibling();
            parent = parent.getParentNode();
        }
        if (sibling == null) {
            return;
        }

        node = sibling;
        sibling = node.getNextSibling();
    } while (true);
}
 

/**
 * This is the work horse for {@link #circumventBug2650}.
 *
 * @param node
 * @see <A HREF="http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2650">
 * Namespace axis resolution is not XPath compliant </A>
 */
@SuppressWarnings("fallthrough")
private static void circumventBug2650internal(Node node) {
    Node parent = null;
    Node sibling = null;
    final String namespaceNs = Constants.NamespaceSpecNS;
    do {
        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE :
            Element element = (Element) node;
            if (!element.hasChildNodes()) {
                break;
            }
            if (element.hasAttributes()) {
                NamedNodeMap attributes = element.getAttributes();
                int attributesLength = attributes.getLength();

                for (Node child = element.getFirstChild(); child!=null;
                    child = child.getNextSibling()) {

                    if (child.getNodeType() != Node.ELEMENT_NODE) {
                        continue;
                    }
                    Element childElement = (Element) child;

                    for (int i = 0; i < attributesLength; i++) {
                        Attr currentAttr = (Attr) attributes.item(i);
                        if (!namespaceNs.equals(currentAttr.getNamespaceURI())) {
                            continue;
                        }
                        if (childElement.hasAttributeNS(namespaceNs,
                                                        currentAttr.getLocalName())) {
                            continue;
                        }
                        childElement.setAttributeNS(namespaceNs,
                                                    currentAttr.getName(),
                                                    currentAttr.getNodeValue());
                    }
                }
            }
        case Node.ENTITY_REFERENCE_NODE :
        case Node.DOCUMENT_NODE :
            parent = node;
            sibling = node.getFirstChild();
            break;
        }
        while ((sibling == null) && (parent != null)) {
            sibling = parent.getNextSibling();
            parent = parent.getParentNode();
        }
        if (sibling == null) {
            return;
        }

        node = sibling;
        sibling = node.getNextSibling();
    } while (true);
}
 

/**
 * This is the work horse for {@link #circumventBug2650}.
 *
 * @param node
 * @see <A HREF="http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2650">
 * Namespace axis resolution is not XPath compliant </A>
 */
@SuppressWarnings("fallthrough")
private static void circumventBug2650internal(Node node) {
    Node parent = null;
    Node sibling = null;
    final String namespaceNs = Constants.NamespaceSpecNS;
    do {
        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE :
            Element element = (Element) node;
            if (!element.hasChildNodes()) {
                break;
            }
            if (element.hasAttributes()) {
                NamedNodeMap attributes = element.getAttributes();
                int attributesLength = attributes.getLength();

                for (Node child = element.getFirstChild(); child!=null;
                    child = child.getNextSibling()) {

                    if (child.getNodeType() != Node.ELEMENT_NODE) {
                        continue;
                    }
                    Element childElement = (Element) child;

                    for (int i = 0; i < attributesLength; i++) {
                        Attr currentAttr = (Attr) attributes.item(i);
                        if (!namespaceNs.equals(currentAttr.getNamespaceURI())) {
                            continue;
                        }
                        if (childElement.hasAttributeNS(namespaceNs,
                                                        currentAttr.getLocalName())) {
                            continue;
                        }
                        childElement.setAttributeNS(namespaceNs,
                                                    currentAttr.getName(),
                                                    currentAttr.getNodeValue());
                    }
                }
            }
        case Node.ENTITY_REFERENCE_NODE :
        case Node.DOCUMENT_NODE :
            parent = node;
            sibling = node.getFirstChild();
            break;
        }
        while ((sibling == null) && (parent != null)) {
            sibling = parent.getNextSibling();
            parent = parent.getParentNode();
        }
        if (sibling == null) {
            return;
        }

        node = sibling;
        sibling = node.getNextSibling();
    } while (true);
}
 

private void receivePropertiesImpl(Document document) {
  DocumentProperties properties = getProperties();
  properties.clear();

  if (document == null)
    return;

  Node propertyContainer = document.getElementsByTagNameNS(PROPERTY_API_NS, "properties").item(0);
  if (propertyContainer == null)
    return;

  NodeList propertiesIn = propertyContainer.getChildNodes();
  for (int i=0; i < propertiesIn.getLength(); i++) {
    Node node = propertiesIn.item(i);
    if (node.getNodeType() != Node.ELEMENT_NODE)
      continue;
    Element property = (Element) node;

    QName propertyName = null;

    String namespaceURI = property.getNamespaceURI();
    if (namespaceURI != null) {
      String prefix    = property.getPrefix();
      if (prefix != null) {
        propertyName = new QName(namespaceURI, property.getLocalName(), prefix);
      } else {
        propertyName = new QName(namespaceURI, property.getTagName());
      }
    } else {
      propertyName = new QName(property.getTagName());
    }

    if (!property.hasChildNodes()) {
      properties.put(propertyName, (String) null);
      continue;
    }

    NodeList children = property.getChildNodes();
    boolean hasChildElements = false;
    int childCount = children.getLength();
    for (int j=0; j < childCount; j++) {
      Node child = children.item(j);
      if (child.getNodeType() == Node.ELEMENT_NODE) {
        hasChildElements = true;
        break;
      }
    }
    if (hasChildElements) {
      properties.put(propertyName, children);
      continue;
    }

    // TODO: casting known properties such as prop:last-modified

    String value = property.getTextContent();
    if (property.hasAttributeNS(
      XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, "type")) {
      String type = property.getAttributeNS(
        XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, "type");
      properties.put(propertyName, ValueConverter.convertToJava(type, value));
      continue;
    } else {
      properties.put(propertyName, value);
    }

    properties.put(propertyName, value);
  }
}
 

@Override
public void afterCheckFile(@NonNull Context context) {
    if (mTextFields != null) {
        if (mLabels == null) {
            mLabels = Collections.emptySet();
        }

        for (Element element : mTextFields) {
            if (element.hasAttributeNS(ANDROID_URI, ATTR_HINT)) {
                continue;
            }
            String id = element.getAttributeNS(ANDROID_URI, ATTR_ID);
            boolean missing = true;
            if (mLabels.contains(id)) {
                missing = false;
            } else if (id.startsWith(NEW_ID_PREFIX)) {
                missing = !mLabels.contains(ID_PREFIX + stripIdPrefix(id));
            } else if (id.startsWith(ID_PREFIX)) {
                missing = !mLabels.contains(NEW_ID_PREFIX + stripIdPrefix(id));
            }

            if (missing) {
                XmlContext xmlContext = (XmlContext) context;
                Location location = xmlContext.getLocation(element);
                String message;
                if (id == null || id.isEmpty()) {
                    message = "No label views point to this text field with a " +
                            "`labelFor` attribute";
                } else {
                    message = String.format("No label views point to this text field with " +
                            "an `android:labelFor=\"@+id/%1$s\"` attribute", id);
                }
                xmlContext.report(ISSUE, element, location, message);
            }

        }
    }

    mLabels = null;
    mTextFields = null;
}
 

/**
 * This is the work horse for {@link #circumventBug2650}.
 *
 * @param node
 * @see <A HREF="http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2650">
 * Namespace axis resolution is not XPath compliant </A>
 */
@SuppressWarnings("fallthrough")
private static void circumventBug2650internal(Node node) {
    Node parent = null;
    Node sibling = null;
    final String namespaceNs = Constants.NamespaceSpecNS;
    do {
        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE :
            Element element = (Element) node;
            if (!element.hasChildNodes()) {
                break;
            }
            if (element.hasAttributes()) {
                NamedNodeMap attributes = element.getAttributes();
                int attributesLength = attributes.getLength();

                for (Node child = element.getFirstChild(); child!=null;
                    child = child.getNextSibling()) {

                    if (child.getNodeType() != Node.ELEMENT_NODE) {
                        continue;
                    }
                    Element childElement = (Element) child;

                    for (int i = 0; i < attributesLength; i++) {
                        Attr currentAttr = (Attr) attributes.item(i);
                        if (!namespaceNs.equals(currentAttr.getNamespaceURI())) {
                            continue;
                        }
                        if (childElement.hasAttributeNS(namespaceNs,
                                                        currentAttr.getLocalName())) {
                            continue;
                        }
                        childElement.setAttributeNS(namespaceNs,
                                                    currentAttr.getName(),
                                                    currentAttr.getNodeValue());
                    }
                }
            }
        case Node.ENTITY_REFERENCE_NODE :
        case Node.DOCUMENT_NODE :
            parent = node;
            sibling = node.getFirstChild();
            break;
        }
        while ((sibling == null) && (parent != null)) {
            sibling = parent.getNextSibling();
            parent = parent.getParentNode();
        }
        if (sibling == null) {
            return;
        }

        node = sibling;
        sibling = node.getNextSibling();
    } while (true);
}
 

@Override
public void visitElement(@NonNull XmlContext context, @NonNull Element element) {
    if (element.getTagName().equals(TEXT_VIEW)) {
        if (!element.hasAttributeNS(ANDROID_URI, ATTR_TEXT)
                && element.hasAttributeNS(ANDROID_URI, ATTR_ID)
                && !element.hasAttributeNS(ANDROID_URI, ATTR_TEXT_IS_SELECTABLE)
                && !element.hasAttributeNS(ANDROID_URI, ATTR_VISIBILITY)
                && !element.hasAttributeNS(ANDROID_URI, ATTR_ON_CLICK)
                && context.getMainProject().getTargetSdk() >= 11
                && context.isEnabled(SELECTABLE)) {
            context.report(SELECTABLE, element, context.getLocation(element),
                    "Consider making the text value selectable by specifying " +
                    "`android:textIsSelectable=\"true\"`");
        }
    }

    NamedNodeMap attributes = element.getAttributes();
    for (int i = 0, n = attributes.getLength(); i < n; i++) {
        Attr attribute = (Attr) attributes.item(i);
        String name = attribute.getLocalName();
        if (name == null || name.isEmpty()) {
            // Attribute not in a namespace; we only care about the android: ones
            continue;
        }

        boolean isEditAttribute = false;
        switch (name.charAt(0)) {
            case 'a': {
                isEditAttribute = name.equals(ATTR_AUTO_TEXT);
                break;
            }
            case 'b': {
                isEditAttribute = name.equals(ATTR_BUFFER_TYPE) &&
                        attribute.getValue().equals(VALUE_EDITABLE);
                break;
            }
            case 'p': {
                isEditAttribute = name.equals(ATTR_PASSWORD)
                        || name.equals(ATTR_PHONE_NUMBER)
                        || name.equals(ATTR_PRIVATE_IME_OPTIONS);
                break;
            }
            case 'c': {
                isEditAttribute = name.equals(ATTR_CAPITALIZE)
                        || name.equals(ATTR_CURSOR_VISIBLE);
                break;
            }
            case 'd': {
                isEditAttribute = name.equals(ATTR_DIGITS);
                break;
            }
            case 'e': {
                if (name.equals(ATTR_EDITABLE)) {
                    isEditAttribute = attribute.getValue().equals(VALUE_TRUE);
                } else {
                    isEditAttribute = name.equals(ATTR_EDITOR_EXTRAS);
                }
                break;
            }
            case 'i': {
                if (name.equals(ATTR_INPUT_TYPE)) {
                    String value = attribute.getValue();
                    isEditAttribute = !value.isEmpty() && !value.equals(VALUE_NONE);
                } else {
                    isEditAttribute = name.equals(ATTR_INPUT_TYPE)
                            || name.equals(ATTR_IME_OPTIONS)
                            || name.equals(ATTR_IME_ACTION_LABEL)
                            || name.equals(ATTR_IME_ACTION_ID)
                            || name.equals(ATTR_INPUT_METHOD);
                }
                break;
            }
            case 'n': {
                isEditAttribute = name.equals(ATTR_NUMERIC);
                break;
            }
        }

        if (isEditAttribute && ANDROID_URI.equals(attribute.getNamespaceURI()) && context.isEnabled(ISSUE)) {
            Location location = context.getLocation(attribute);
            String message;
            String view = element.getTagName();
            if (view.equals(TEXT_VIEW)) {
                message = String.format(
                        "Attribute `%1$s` should not be used with `<TextView>`: " +
                        "Change element type to `<EditText>` ?", attribute.getName());
            } else {
                message = String.format(
                        "Attribute `%1$s` should not be used with `<%2$s>`: " +
                        "intended for editable text widgets",
                        attribute.getName(), view);
            }
            context.report(ISSUE, attribute, location, message);
        }
    }
}