Java Strings.isEmpty方法代码示例

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
protected void onOpen(IPartialPageRequestHandler handler) {
	ConfigurationDao cfgDao = getBean(ConfigurationDao.class);
	String baseURL = getBaseUrl();
	sendEmailAtRegister = cfgDao.getBool(CONFIG_EMAIL_AT_REGISTER, false);
	sendConfirmation = !Strings.isEmpty(baseURL) && cfgDao.getBool(CONFIG_EMAIL_VERIFICATION, false);
	String messageCode = "account.created";
	if (sendConfirmation && sendEmailAtRegister) {
		messageCode = "warn.notverified";
	} else if (sendConfirmation) {
		messageCode = "1591";
	}
	confirmRegistration.setModelObject(getString(messageCode));
	reset(handler);
	handler.add(form);
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
public void query(String term, int page, Response<Group> response) {
	if (WebSession.getRights().contains(User.Right.Admin)) {
		List<Group> groups = getBean(GroupDao.class).get(0, Integer.MAX_VALUE);
		for (Group g : groups) {
			if (Strings.isEmpty(term) || g.getName().toLowerCase().contains(term.toLowerCase())) {
				response.add(g);
			}
		}
	} else {
		User u = getBean(UserDao.class).get(getUserId());
		for (GroupUser ou : u.getGroupUsers()) {
			if (Strings.isEmpty(term) || ou.getGroup().getName().toLowerCase().contains(term.toLowerCase())) {
				response.add(ou.getGroup());
			}
		}
	}
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
private void init(String _name, String _ext, InputStream is) {
	if (Strings.isEmpty(_ext)) {
		int idx = _name.lastIndexOf('.');
		name = idx < 0 ? _name : _name.substring(0, idx);
		ext = getFileExt(_name);
	} else {
		name = _name;
		ext = _ext.toLowerCase();
	}
	Metadata md = new Metadata();
	md.add(RESOURCE_NAME_KEY, String.format(FILE_NAME_FMT, name, ext));
	try {
		mime = tika.getDetector().detect(is == null ? null : TikaInputStream.get(is), md);
	} catch (Throwable e) {
		mime = null;
		log.error("Unexpected exception while detecting mime type", e);
	}
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
/**
 * Check that current user has access to mentioned resource
 * @param resource {@link RequiredOrientResource} to check
 * @param action {@link Action} to check for
 * @return true if access is allowed
 */
public boolean checkResource(RequiredOrientResource resource, Action action)
{
	if(!resource.action().equals(action.getName())) return true;
	OSecurityUser user = OrientDbWebSession.get().getUser();
	if(user==null) return false;
	int iOperation = OrientPermission.combinedPermission(resource.permissions());
	ORule.ResourceGeneric value = OSecurityHelper.getResourceGeneric(resource.value());
	String specific = resource.specific();
	if(Strings.isEmpty(specific)) specific = null;
	if(user.checkIfAllowed(value, specific, iOperation)!=null) return true;
	while(!Strings.isEmpty(specific=Strings.beforeLastPathComponent(specific, '.')))
	{
		if(user.checkIfAllowed(value, specific+"."+ODatabaseSecurityResources.ALL, iOperation)!=null) return true;
	}
	return false;
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
protected void onScriptExecute(AjaxRequestTarget target)
{
	String commandScript = scriptModel.getObject();
	if(!Strings.isEmpty(commandScript))
	{
		String scriptEngineName = scriptEngineModel.getObject();
		if (!Strings.isEmpty(scriptEngineName)){
			ScriptExecutorHolder.get().getScriptExecutor().execute(commandScript,scriptEngineName,context);
		}else{
			ScriptExecutorHolder.get().getScriptExecutor().execute(commandScript);
		}
		
		if(!keepScriptModel.getObject())
		{
			scriptModel.setObject("");
			if(target!=null)
			{
				target.add(scriptTextArea);
				target.focusComponent(scriptTextArea);
			}
		}
		if(target!=null) target.add(historyContainer);
	}
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
/**
 * Convert the input respecting the flag convertEmptyInputStringToNull.
 * Subclasses that override this method should test this flag also.
 * 
 * @see org.apache.wicket.markup.html.form.FormComponent#convertInput()
 */
@Override
protected void convertInput()
{
    // Stateless forms don't have to be rendered first, convertInput could be called before
    // onBeforeRender calling resolve type here again to check if the type is correctly set.
    resolveType();
    String[] value = getInputAsArray();
    String tmp = value != null && value.length > 0 ? value[0] : null;

    if (convertBlankInputStringToNull && StringUtils.isBlank(tmp))
    {
        setConvertedInput(null);
    }
    else if (getConvertEmptyInputStringToNull() && Strings.isEmpty(tmp))
    {
        setConvertedInput(null);
    }
    else
    {
        super.convertInput();
    }
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
public String getObject() {
	if (Strings.isEmpty(value)) {
		return value;
	}
	String safeValue;
	switch (mode) {
	case none:
		safeValue = GitBlitWebApp.get().xssFilter().none(value);
		break;
	default:
		safeValue = GitBlitWebApp.get().xssFilter().relaxed(value);
		break;
	}
	if (!value.equals(safeValue)) {
		LoggerFactory.getLogger(getClass()).warn("XSS filter trigggered on suspicious form field value {}", value);
	}
	return safeValue;
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
/**
 * Constructor.
 *
 * @param request
 *      the http request that was used to create the TomcatWebSocketProcessor
 * @param application
 *      the current Wicket Application
 */
public AbstractWebSocketProcessor(final HttpServletRequest request, final WebApplication application)
{
	this.sessionId = request.getSession(true).getId();

	String pageId = request.getParameter("pageId");
	resourceName = request.getParameter("resourceName");
	if (Strings.isEmpty(pageId) && Strings.isEmpty(resourceName))
	{
		throw new IllegalArgumentException("The request should have either 'pageId' or 'resourceName' parameter!");
	}
	if (Strings.isEmpty(pageId) == false)
	{
		this.pageId = Integer.parseInt(pageId, 10);
	}
	else
	{
		this.pageId = NO_PAGE_ID;
	}

	String baseUrl = request.getParameter(WebRequest.PARAM_AJAX_BASE_URL);
	Checks.notNull(baseUrl, String.format("Request parameter '%s' is required!", WebRequest.PARAM_AJAX_BASE_URL));
	this.baseUrl = Url.parse(baseUrl);

	WicketFilter wicketFilter = application.getWicketFilter();
	this.servletRequest = new ServletRequestCopy(request);

	this.application = Args.notNull(application, "application");

	this.webSocketSettings = WebSocketSettings.Holder.get(application);

	this.webRequest = webSocketSettings.newWebSocketRequest(request, wicketFilter.getFilterPath());

	this.connectionRegistry = webSocketSettings.getConnectionRegistry();

	this.connectionFilter = webSocketSettings.getConnectionFilter();
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
protected IKey getRegistryKey()
{
	IKey key;
	if (Strings.isEmpty(resourceName))
	{
		key = new PageIdKey(pageId);
	}
	else
	{
		key = new ResourceNameKey(resourceName);
	}
	return key;
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
public void convertInput() {

	String input = getWebRequest().getRequestParameters().getParameterValue(getInputName()).toString();
	if (Strings.isEmpty(input)) {
		setConvertedInput(null);
	} else {
		setConvertedInput(getProvider().toChoices(Collections.singleton(input)).iterator().next());
	}
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
public void convertInput() {

	String input = getWebRequest().getRequestParameters().getParameterValue(getInputName()).toString();

	final Collection<T> choices;
	if (Strings.isEmpty(input)) {
		choices = new ArrayList<T>();
	} else {
		choices = getProvider().toChoices(Arrays.asList(input.split(",")));
	}

	setConvertedInput(choices);
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
protected WebMarkupContainer newSortableHeader(String headerId, final String property, final ISortStateLocator locator) {
    return new AjaxFallbackOrderByBorder(headerId, property, locator) {

        @Override
        protected void onSortChanged() {
            getTable().setCurrentPage(0);
        }
        
        @Override
        protected void onAjaxClick(AjaxRequestTarget target) {
        	target.add(getTable());
        }

        @Override
        public void onComponentTag(ComponentTag tag) {
            super.onComponentTag(tag);
            ISortState sortState = locator.getSortState();
            SortOrder dir = sortState.getPropertySortOrder(property);
            String cssClass;
            if (dir == SortOrder.ASCENDING) {
                cssClass = "sortable asc";
            } else if (dir == SortOrder.DESCENDING) {
                cssClass = "sortable desc";
            } else {
                cssClass = "sortable";
            }

            if (!Strings.isEmpty(cssClass)) {
                tag.append("class", cssClass, " ");
            }
        }
    };
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
public SimpleSearchPage(IModel<QueryFacetsSelection> queryModel) {
    super(queryModel, Model.of(true));
    if (!Strings.isEmpty(queryModel.getObject().getQuery()) || !queryModel.getObject().getSelection().isEmpty()) {
        //query selection -> redirect to non-simple page
        setResponsePage(new FacetedSearchPage(queryModel));
    }
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
@Override
public void renderHead(Component component, IHeaderResponse response) {
    // include highlight script
    response.render(JavaScriptHeaderItem.forReference(JavaScriptResources.getHighlightJS()));

    final String words = getWordList(component);
    if (!Strings.isEmpty(words)) {
        String selector = getComponentSelector(component.getMarkupId());
        // after load, highlight 
        response.render(OnDomReadyHeaderItem.forScript(scriptFactory.createScript(selector, words)));
    }
}
 

import org.apache.wicket.util.string.Strings; //导入方法依赖的package包/类
/**
 * Get the absolute bookmarkable path of a page
 *
 * @param pageClass      Page
 * @param pageParameters Optional page parameters
 * @return Bookmarkable path
 */
public static String absoluteMountPathForPage(Class<? extends Page> pageClass, PageParameters pageParameters) {
    HttpServletRequest req = getHttpServletRequest();
    RequestCycle requestCycle = RequestCycle.get();
    Url url = requestCycle.mapUrlFor(pageClass, pageParameters);
    String renderedUrl = url.toString();
    renderedUrl = Strings.isEmpty(renderedUrl) ? "." : renderedUrl;
    return RequestUtils.toAbsolutePath(HttpUtils.getWebappContextUrl(req),
            requestCycle.getOriginalResponse().encodeURL(renderedUrl));
}