001/* 002 * (C) Copyright 2006-2013 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 */ 019 020package org.nuxeo.ecm.platform.ui.web.auth; 021 022import org.nuxeo.ecm.core.api.NuxeoException; 023import org.nuxeo.ecm.platform.ui.web.auth.service.LoginProviderLinkComputer; 024import org.nuxeo.ecm.platform.ui.web.auth.service.LoginScreenConfig; 025import org.nuxeo.ecm.platform.ui.web.auth.service.PluggableAuthenticationService; 026import org.nuxeo.runtime.api.Framework; 027 028/** 029 * Simple helper class for easy access form the login.jsp page 030 * 031 * @author <a href="mailto:tdelprat@nuxeo.com">Tiry</a> 032 * @since 5.7 033 */ 034public class LoginScreenHelper { 035 036 public static LoginScreenConfig getConfig() { 037 PluggableAuthenticationService authService = (PluggableAuthenticationService) Framework.getRuntime().getComponent( 038 PluggableAuthenticationService.NAME); 039 return authService.getLoginScreenConfig(); 040 } 041 042 public static void registerLoginProvider(String name, String iconUrl, String link, String label, 043 String description, LoginProviderLinkComputer computer) { 044 045 LoginScreenConfig config = getConfig(); 046 if (config != null) { 047 config.registerLoginProvider(name, iconUrl, link, label, description, computer); 048 } else { 049 throw new NuxeoException("There is no available LoginScreen config"); 050 } 051 } 052 053 public static String getValueWithDefault(String value, String defaultValue) { 054 if (value == null || value.isEmpty()) { 055 return defaultValue; 056 } 057 return value; 058 } 059 060}