001/* 002 * (C) Copyright 2006-2009 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 * $Id$ 020 */ 021 022package org.nuxeo.ecm.platform.ui.web.cache; 023 024/** 025 * Helper class to check if Seam s:cache tag can be used (s:cache does not only require jboss-cache, but also some 026 * internal classes. 027 * 028 * @author Thierry Delprat 029 */ 030public class SeamCacheHelper { 031 032 protected static Boolean canUseSeamCache; 033 034 private SeamCacheHelper() { 035 } 036 037 public static boolean canUseSeamCache() { 038 if (canUseSeamCache == null) { 039 canUseSeamCache = false; 040 try { 041 Class.forName("org.jboss.system.ServiceMBeanSupport"); 042 canUseSeamCache = true; 043 } catch (ClassNotFoundException e) { 044 } 045 } 046 return canUseSeamCache.booleanValue(); 047 } 048}