Example usage for org.w3c.dom Element getNodeName

List of usage examples for org.w3c.dom Element getNodeName

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Introduction

In this page you can find the example usage for org.w3c.dom Element getNodeName.

Prototype

public String getNodeName();

Source Link

Document

The name of this node, depending on its type; see the table above.

Usage

From source file:org.glom.app.libglom.Document.java

public boolean load(final InputStream inputStream) {
    final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder documentBuilder;
    try {//from ww w  . j  a v a 2 s  .  c  o m
        documentBuilder = dbf.newDocumentBuilder();
    } catch (final ParserConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    }

    org.w3c.dom.Document xmlDocument;

    try {
        xmlDocument = documentBuilder.parse(inputStream);
    } catch (final SAXException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    } catch (final IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    }

    final Element rootNode = xmlDocument.getDocumentElement();
    if (!TextUtils.equals(rootNode.getNodeName(), NODE_ROOT)) {
        Log.v("android-glom", "Unexpected XML root node name found: " + rootNode.getNodeName());
        return false;
    }

    //Get the database title, falling back to the deprecated XML format for it:
    //TODO: load() show complain (via an enum result) if the document format version is less than 7.
    final String databaseTitleStr = rootNode.getAttribute(ATTRIBUTE_TITLE);
    final String deprecatedDatabaseTitleStr = rootNode.getAttribute(DEPRECATED_ATTRIBUTE_DATABASE_TITLE);
    if (!TextUtils.isEmpty(databaseTitleStr)) {
        databaseTitle.setTitleOriginal(databaseTitleStr);
    } else {
        databaseTitle.setTitleOriginal(deprecatedDatabaseTitleStr);
    }
    loadTitle(rootNode, databaseTitle);

    translationOriginalLocale = rootNode.getAttribute(ATTRIBUTE_TRANSLATION_ORIGINAL_LOCALE);
    translationAvailableLocales.add(translationOriginalLocale); // Just a cache.

    isExample = getAttributeAsBoolean(rootNode, ATTRIBUTE_IS_EXAMPLE);

    final Element nodeConnection = getElementByName(rootNode, NODE_CONNECTION);
    if (nodeConnection != null) {
        final String strHostingMode = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_HOSTING_MODE);
        switch (strHostingMode) {
        case ATTRIBUTE_CONNECTION_HOSTING_POSTGRES_CENTRAL:
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_CENTRAL;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_POSTGRES_SELF:
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_SELF;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_MYSQL_CENTRAL:
            hostingMode = HostingMode.HOSTING_MODE_MYSQL_CENTRAL;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_MYSQL_SELF:
            hostingMode = HostingMode.HOSTING_MODE_MYSQL_SELF;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_SQLITE:
            hostingMode = HostingMode.HOSTING_MODE_SQLITE;
            break;
        default:
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_SELF;
            break;
        }

        connectionServer = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_SERVER);
        connectionDatabase = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_DATABASE);
        connectionPort = (int) getAttributeAsDecimal(nodeConnection, ATTRIBUTE_CONNECTION_PORT);
    }

    // We first load the fields, relationships, etc,
    // for all tables:
    final List<Node> listTableNodes = getChildrenByTagName(rootNode, NODE_TABLE);
    for (final Node node : listTableNodes) {
        if (!(node instanceof Element)) {
            continue;
        }

        final Element element = (Element) node;
        final TableInfo info = loadTableNodeBasic(element);
        tablesMap.put(info.getName(), info);
    }

    // We then load the layouts for all tables, because they
    // need the fields and relationships for all tables:
    for (final Node node : listTableNodes) {
        if (!(node instanceof Element)) {
            continue;
        }

        final Element element = (Element) node;
        final String tableName = element.getAttribute(ATTRIBUTE_NAME);

        // We first load the fields, relationships, etc:
        final TableInfo info = getTableInfo(tableName);
        if (info == null) {
            continue;
        }

        // We then load the layouts afterwards, because they
        // need the fields and relationships:
        loadTableLayouts(element, info);

        tablesMap.put(info.getName(), info);
    }

    return true;
}

From source file:org.glom.libglom.Document.java

public boolean load(final InputStream inputStream) {
    final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder documentBuilder;
    try {/*from w ww.jav a 2s  .co  m*/
        documentBuilder = dbf.newDocumentBuilder();
    } catch (final ParserConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    }

    org.w3c.dom.Document xmlDocument;

    try {
        xmlDocument = documentBuilder.parse(inputStream);
    } catch (final SAXException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    } catch (final IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    }

    final Element rootNode = xmlDocument.getDocumentElement();
    if (!StringUtils.equals(rootNode.getNodeName(), NODE_ROOT)) {
        Logger.log("Unexpected XML root node name found: " + rootNode.getNodeName());
        return false;
    }

    //Get the database title, falling back to the deprecated XML format for it:
    //TODO: load() show complain (via an enum result) if the document format version is less than 7.
    final String databaseTitleStr = rootNode.getAttribute(ATTRIBUTE_TITLE);
    final String deprecatedDatabaseTitleStr = rootNode.getAttribute(DEPRECATED_ATTRIBUTE_DATABASE_TITLE);
    if (!StringUtils.isEmpty(databaseTitleStr)) {
        databaseTitle.setTitleOriginal(databaseTitleStr);
    } else {
        databaseTitle.setTitleOriginal(deprecatedDatabaseTitleStr);
    }
    loadTitle(rootNode, databaseTitle);

    translationOriginalLocale = rootNode.getAttribute(ATTRIBUTE_TRANSLATION_ORIGINAL_LOCALE);
    translationAvailableLocales.add(translationOriginalLocale); // Just a cache.

    isExample = getAttributeAsBoolean(rootNode, ATTRIBUTE_IS_EXAMPLE);

    final Element nodeConnection = getElementByName(rootNode, NODE_CONNECTION);
    if (nodeConnection != null) {
        final String strHostingMode = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_HOSTING_MODE);
        switch (strHostingMode) {
        case ATTRIBUTE_CONNECTION_HOSTING_POSTGRES_CENTRAL:
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_CENTRAL;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_POSTGRES_SELF:
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_SELF;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_MYSQL_CENTRAL:
            hostingMode = HostingMode.HOSTING_MODE_MYSQL_CENTRAL;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_MYSQL_SELF:
            hostingMode = HostingMode.HOSTING_MODE_MYSQL_SELF;
            break;
        case ATTRIBUTE_CONNECTION_HOSTING_SQLITE:
            hostingMode = HostingMode.HOSTING_MODE_SQLITE;
            break;
        default:
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_SELF;
            break;
        }

        connectionServer = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_SERVER);
        connectionDatabase = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_DATABASE);
        connectionPort = (int) getAttributeAsDecimal(nodeConnection, ATTRIBUTE_CONNECTION_PORT);
    }

    // We first load the fields, relationships, etc,
    // for all tables:
    final List<Node> listTableNodes = getChildrenByTagName(rootNode, NODE_TABLE);
    for (final Node node : listTableNodes) {
        if (!(node instanceof Element)) {
            continue;
        }

        final Element element = (Element) node;
        final TableInfo info = loadTableNodeBasic(element);
        tablesMap.put(info.getName(), info);
    }

    // We then load the layouts for all tables, because they
    // need the fields and relationships for all tables:
    for (final Node node : listTableNodes) {
        if (!(node instanceof Element)) {
            continue;
        }

        final Element element = (Element) node;
        final String tableName = element.getAttribute(ATTRIBUTE_NAME);

        // We first load the fields, relationships, etc:
        final TableInfo info = getTableInfo(tableName);
        if (info == null) {
            continue;
        }

        // We then load the layouts afterwards, because they
        // need the fields and relationships:
        loadTableLayouts(element, info);

        tablesMap.put(info.getName(), info);
    }

    return true;
}

From source file:org.glom.web.server.libglom.Document.java

public boolean load() {
    final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder documentBuilder = null;
    try {/*from  w w  w .ja  v a 2  s  . c  o m*/
        documentBuilder = dbf.newDocumentBuilder();
    } catch (final ParserConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    }

    try {
        xmlDocument = documentBuilder.parse(fileURI);
    } catch (final SAXException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    } catch (final IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return false;
    }

    final Element rootNode = xmlDocument.getDocumentElement();
    if (rootNode.getNodeName() != NODE_ROOT) {
        Log.error("Unexpected XML root node name found: " + rootNode.getNodeName());
        return false;
    }

    //Get the database title, falling back to the deprecated XML format for it:
    //TODO: load() show complain (via an enum result) if the document format version is less than 7.
    final String databaseTitleStr = rootNode.getAttribute(ATTRIBUTE_TITLE);
    final String deprecatedDatabaseTitleStr = rootNode.getAttribute(DEPRECATED_ATTRIBUTE_DATABASE_TITLE);
    if (!StringUtils.isEmpty(databaseTitleStr)) {
        databaseTitle.setTitleOriginal(databaseTitleStr);
    } else {
        databaseTitle.setTitleOriginal(deprecatedDatabaseTitleStr);
    }
    loadTitle(rootNode, databaseTitle);

    translationOriginalLocale = rootNode.getAttribute(ATTRIBUTE_TRANSLATION_ORIGINAL_LOCALE);
    translationAvailableLocales.add(translationOriginalLocale); // Just a cache.

    isExample = getAttributeAsBoolean(rootNode, ATTRIBUTE_IS_EXAMPLE);

    final Element nodeConnection = getElementByName(rootNode, NODE_CONNECTION);
    if (nodeConnection != null) {
        final String strHostingMode = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_HOSTING_MODE);
        if (strHostingMode.equals(ATTRIBUTE_CONNECTION_HOSTING_POSTGRES_CENTRAL)) {
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_CENTRAL;
        } else if (strHostingMode.equals(ATTRIBUTE_CONNECTION_HOSTING_POSTGRES_SELF)) {
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_SELF;
        } else if (strHostingMode.equals(ATTRIBUTE_CONNECTION_HOSTING_MYSQL_CENTRAL)) {
            hostingMode = HostingMode.HOSTING_MODE_MYSQL_CENTRAL;
        } else if (strHostingMode.equals(ATTRIBUTE_CONNECTION_HOSTING_MYSQL_SELF)) {
            hostingMode = HostingMode.HOSTING_MODE_MYSQL_SELF;
        } else if (strHostingMode.equals(ATTRIBUTE_CONNECTION_HOSTING_SQLITE)) {
            hostingMode = HostingMode.HOSTING_MODE_SQLITE;
        } else {
            hostingMode = HostingMode.HOSTING_MODE_POSTGRES_SELF;
        }

        connectionServer = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_SERVER);
        connectionDatabase = nodeConnection.getAttribute(ATTRIBUTE_CONNECTION_DATABASE);
        connectionPort = (int) getAttributeAsDecimal(nodeConnection, ATTRIBUTE_CONNECTION_PORT);
    }

    // We first load the fields, relationships, etc,
    // for all tables:
    final List<Node> listTableNodes = getChildrenByTagName(rootNode, NODE_TABLE);
    for (final Node node : listTableNodes) {
        if (!(node instanceof Element)) {
            continue;
        }

        final Element element = (Element) node;
        final TableInfo info = loadTableNodeBasic(element);
        tablesMap.put(info.getName(), info);
    }

    // We then load the layouts for all tables, because they
    // need the fields and relationships for all tables:
    for (final Node node : listTableNodes) {
        if (!(node instanceof Element)) {
            continue;
        }

        final Element element = (Element) node;
        final String tableName = element.getAttribute(ATTRIBUTE_NAME);

        // We first load the fields, relationships, etc:
        final TableInfo info = getTableInfo(tableName);
        if (info == null) {
            continue;
        }

        // We then load the layouts afterwards, because they
        // need the fields and relationships:
        loadTableLayouts(element, info);

        tablesMap.put(info.getName(), info);
    }

    return true;
}

From source file:org.gradle.api.internal.artifacts.ivyservice.ivyresolve.parser.PomReader.java

/**
 * Parses all active profiles that can be found in POM.
 *
 * @return Active POM profiles/*ww w. ja  v  a 2s  .  co  m*/
 */
private List<PomProfile> parseActivePomProfiles() {
    if (declaredActivePomProfiles == null) {
        List<PomProfile> activeByDefaultPomProfiles = new ArrayList<PomProfile>();
        List<PomProfile> activeByAbsenceOfPropertyPomProfiles = new ArrayList<PomProfile>();
        Element profilesElement = getFirstChildElement(projectElement, PROFILES);

        if (profilesElement != null) {
            for (Element profileElement : getAllChilds(profilesElement)) {
                if (PROFILE.equals(profileElement.getNodeName())) {
                    Element activationElement = getFirstChildElement(profileElement, PROFILE_ACTIVATION);

                    if (activationElement != null) {
                        String activeByDefault = getFirstChildText(activationElement,
                                PROFILE_ACTIVATION_ACTIVE_BY_DEFAULT);

                        if (activeByDefault != null && "true".equals(activeByDefault)) {
                            activeByDefaultPomProfiles.add(new PomProfileElement(profileElement));
                        } else {
                            Element propertyElement = getFirstChildElement(activationElement,
                                    PROFILE_ACTIVATION_PROPERTY);

                            if (propertyElement != null) {
                                if (isActivationPropertyActivated(propertyElement)) {
                                    activeByAbsenceOfPropertyPomProfiles
                                            .add(new PomProfileElement(profileElement));
                                }
                            }
                        }
                    }
                }
            }
        }

        declaredActivePomProfiles = determineActiveProfiles(activeByDefaultPomProfiles,
                activeByAbsenceOfPropertyPomProfiles);
    }

    return declaredActivePomProfiles;
}

From source file:org.gradle.api.internal.artifacts.ivyservice.ivyresolve.parser.PomReader.java

private Map<String, String> getPomProperties(Element parentElement) {
    Map<String, String> pomProperties = new HashMap<String, String>();
    Element propsEl = getFirstChildElement(parentElement, PROPERTIES);
    if (propsEl != null) {
        propsEl.normalize();//from ww w  . j a  va  2 s.  c om
    }
    for (Element prop : getAllChilds(propsEl)) {
        pomProperties.put(prop.getNodeName(), getTextContent(prop));
    }
    return pomProperties;
}

From source file:org.gradle.build.docs.dsl.docbook.JavadocConverter.java

private void adjustAccessorComment(DocCommentImpl docComment) {
    // Replace 'Returns the ...'/'Sets the ...' with 'The ...'
    List<Element> nodes = docComment.getDocbook();
    if (nodes.isEmpty()) {
        return;/*from  w ww .ja v a  2 s. c  om*/
    }

    Element firstNode = nodes.get(0);
    if (!firstNode.getNodeName().equals("para") || !(firstNode.getFirstChild() instanceof Text)) {
        return;
    }

    Text comment = (Text) firstNode.getFirstChild();
    Matcher matcher = ACCESSOR_COMMENT_PATTERN.matcher(comment.getData());
    if (matcher.lookingAt()) {
        String theOrWhether = matcher.group(1).toLowerCase(Locale.US);
        comment.setData(
                StringUtils.capitalize(theOrWhether) + " " + comment.getData().substring(matcher.end()));
    }
}

From source file:org.gvnix.web.menu.roo.addon.MenuEntryOperationsImpl.java

/** {@inheritDoc} */
public String addMenuItem(JavaSymbolName menuCategoryName, JavaSymbolName menuItemId, String menuItemLabel,
        String globalMessageCode, String link, String idPrefix, String roles, boolean hide,
        boolean writeProps) {

    Validate.notNull(menuCategoryName, "Menu category name required");
    Validate.notNull(menuItemId, "Menu item name required");

    // Properties to be written
    Map<String, String> properties = new HashMap<String, String>();

    if (idPrefix == null || idPrefix.length() == 0) {
        idPrefix = MenuOperations.DEFAULT_MENU_ITEM_PREFIX;
    }/*w w  w  . ja  v a 2  s .co  m*/

    Document document = getMenuDocument();

    // make the root element of the menu the one with the menu identifier
    // allowing for different decorations of menu
    Element rootElement = XmlUtils.findFirstElement(ID_MENU_EXP, (Element) document.getFirstChild());

    if (!rootElement.getNodeName().equals(GVNIX_MENU)) {
        throw new IllegalArgumentException(INVALID_XML);
    }

    // build category name and Id:
    // - menuCategoryName is a name if it doesn't start with c_: create the
    // id
    // - menuCategoryName is an identifier if it starts with c_: create the
    // name
    String categoryName = menuCategoryName.getSymbolName();
    StringBuilder categoryId = new StringBuilder();
    Element category = null;

    // check for existence of menu category by looking for the
    // identifier
    // provided

    // build category name and Id:
    // - menuCategoryName is a name if it doesn't start with c_: create
    // the
    // id
    // - menuCategoryName is an identifier if it starts with c_: create
    // the name
    // don't create any categoryId if there is already an id prefix
    if (!categoryName.startsWith(MenuEntryOperations.CATEGORY_MENU_ITEM_PREFIX)
            && !categoryName.startsWith(idPrefix)) {

        // create categoryId using the category name
        categoryId.append(MenuEntryOperations.CATEGORY_MENU_ITEM_PREFIX).append(categoryName.toLowerCase());
    } else {
        categoryId.append(categoryName.toLowerCase());
        // create category name using the category Id
        categoryName = StringUtils.capitalize(categoryName.substring(2));
    }

    List<Element> givenCategory = XmlUtils.findElements(ID_EXP.concat(categoryId.toString()).concat("']"),
            rootElement);

    // if given category not exists, create new one
    if (givenCategory.isEmpty()) {

        String categoryLabelCode = "menu_category_".concat(categoryName.toLowerCase()).concat("_label");

        category = (Element) rootElement.appendChild(new XmlElementBuilder(MENU_ITEM, document)
                .addAttribute("id", categoryId.toString()).addAttribute("name", categoryName)
                .addAttribute(LABEL_CODE, categoryLabelCode).build());

        properties.put(categoryLabelCode, menuCategoryName.getReadableSymbolName());
    } else {
        category = givenCategory.get(0);
    }

    // build menu item Id:
    // - if menu item id starts with 'i_', it is a valid ID but we remove
    // 'i_' for convenience
    // - otherwise, have to compose the ID
    StringBuilder itemId = new StringBuilder();

    if (menuItemId.getSymbolName().toLowerCase().startsWith(idPrefix)) {
        itemId.append(menuItemId.getSymbolName().toLowerCase());
        itemId.delete(0, idPrefix.length());
    } else {
        itemId.append(categoryName.toLowerCase()).append("_").append(menuItemId.getSymbolName().toLowerCase());
    }

    // check for existence of menu item by looking for the identifier
    // provided
    // Note that in view files, menu item ID has idPrefix_, but it doesn't
    // have
    // at application.properties, so we have to add idPrefix_ to look for
    // the given menu item but we have to add without idPrefix_ to
    // application.properties
    List<Element> menuList = XmlUtils
            .findElements(ID_EXP.concat(idPrefix).concat(itemId.toString()).concat("']"), rootElement);

    String itemLabelCode = "menu_item_".concat(itemId.toString()).concat("_label");

    if (menuList.isEmpty()) {
        Element menuItem = new XmlElementBuilder(MENU_ITEM, document)
                .addAttribute("id", idPrefix.concat(itemId.toString())).addAttribute(LABEL_CODE, itemLabelCode)
                .addAttribute(MESSAGE_CODE, StringUtils.isNotBlank(globalMessageCode) ? globalMessageCode : "")
                .addAttribute(URL, StringUtils.isNotBlank(link) ? link : "")
                .addAttribute(HIDDEN, Boolean.toString(hide))
                .addAttribute("roles", StringUtils.isNotBlank(roles) ? roles : "").build();

        // TODO: gvnix*.tagx uses destination in spite of url, change to url
        category.appendChild(menuItem);
    }

    if (StringUtils.isNotBlank(menuItemLabel)) {
        properties.put(itemLabelCode, menuItemLabel);
    }

    if (writeProps) {
        propFileOperations.addProperties(LogicalPath.getInstance(Path.SRC_MAIN_WEBAPP, ""),
                "/WEB-INF/i18n/application.properties", properties, true, false);
    }

    writeXMLConfigIfNeeded(document);

    // return the ID assigned to new entry
    return idPrefix.concat(itemId.toString());
}

From source file:org.gvnix.web.screen.roo.addon.SeleniumServicesImpl.java

/**
 * Get template html content and update with current name.
 * /*from w  w  w . j  a v a  2 s. c o  m*/
 * @param name Name to write into html content
 * @param document Document to write into
 * @return Html element with required name
 */
protected Element getHtmlElement(String name, Document document) {

    Element root = (Element) document.getLastChild();
    if (root == null || !"html".equals(root.getNodeName())) {

        throw new IllegalArgumentException("Could not parse selenium test case template file!");
    }
    XmlUtils.findRequiredElement("/html/head/title", root).setTextContent(name);
    XmlUtils.findRequiredElement("/html/body/table/thead/tr/td", root).setTextContent(name);

    return root;
}

From source file:org.gvnix.web.theme.roo.addon.Theme.java

/**
 * @param themeEl//from  ww w .j  a  v  a  2s  .  c  om
 */
private Theme(Element themeEl) {

    // if root element isn't theme, we found invalid theme
    if (!themeEl.getNodeName().equals("gvnix-theme")) {
        throw new IllegalArgumentException("Given theme Element hasn't valid XML structure.");
    }

    this.id = themeEl.getAttribute("id");
    Validate.notNull(id, "Theme element must have id attribute");
    Validate.notBlank(id, "Theme element must have id attribute");

    this.name = themeEl.getAttribute("name");

    // Description can be null in custom project themes
    Element themeDescription = DomUtils.findFirstElementByName("description", themeEl);
    this.description = themeDescription != null ? themeDescription.getTextContent() : null;

    // Properties can be null
    Element properties = DomUtils.findFirstElementByName("properties", themeEl);
    if (properties != null) {
        propertyBundles = parseThemeProperties(properties);
    }
}

From source file:org.gvnix.web.theme.roo.addon.Theme.java

/**
 * Parses and build Document from the stream to Theme object.
 * <p>//from  w  ww  .  ja va  2s.  c om
 * This is an internal utility method, use {@link parseTheme} and
 * {@link XmlUtils#parseTheme(URL)} to parse Theme descriptors because the
 * URI to the theme descriptor is set in the new Theme objet.
 * 
 * @param is InputStream to parse
 * @return Theme object. Null if there is any problem parsing the stream or
 *         the stream doesn't contain a valid XML.
 */
public static Theme parseTheme(InputStream is) {
    try {

        // load the theme
        Document themeDoc = org.springframework.roo.support.util.XmlUtils.getDocumentBuilder().parse(is);
        Element root = (Element) themeDoc.getDocumentElement();

        // if root element isn't theme, we found invalid theme
        if (!root.getNodeName().equals("gvnix-theme")) {
            throw new IllegalStateException("XML doesn't contain valid Theme.");
        }

        Theme theme = new Theme(root);
        return theme;
    } catch (Exception e) {
        throw new IllegalStateException("Error parsing XML", e);
    } finally {
        IOUtils.closeQuietly(is);
    }
}