001/**
002 *   GRANITE DATA SERVICES
003 *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 *   This file is part of the Granite Data Services Platform.
006 *
007 *   Granite Data Services is free software; you can redistribute it and/or
008 *   modify it under the terms of the GNU Lesser General Public
009 *   License as published by the Free Software Foundation; either
010 *   version 2.1 of the License, or (at your option) any later version.
011 *
012 *   Granite Data Services is distributed in the hope that it will be useful,
013 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 *   General Public License for more details.
016 *
017 *   You should have received a copy of the GNU Lesser General Public
018 *   License along with this library; if not, write to the Free Software
019 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 *   USA, or see <http://www.gnu.org/licenses/>.
021 */
022package org.granite.tide.ejb;
023
024import java.lang.annotation.Annotation;
025import java.util.Collections;
026import java.util.Set;
027
028import javax.naming.InitialContext;
029import javax.servlet.ServletContext;
030
031import org.granite.config.ConfigProvider;
032import org.granite.gravity.Gravity;
033import org.granite.logging.Logger;
034import org.granite.messaging.service.ServiceFactory;
035
036
037public class EjbConfigProvider implements ConfigProvider {
038
039    private static final Logger log = Logger.getLogger(EjbConfigProvider.class);
040
041    private ServletContext servletContext;
042    
043    public EjbConfigProvider(ServletContext servletContext) {
044        this.servletContext = servletContext;
045    }
046        
047        public Boolean useTide() {
048                return true;
049        }
050
051        public String getType() {
052                return "server";
053        }
054
055        public Class<? extends ServiceFactory> getFactoryClass() {
056                return EjbServiceFactory.class;
057        }
058
059        public <T> T findInstance(Class<T> type) {
060                return null;
061        }
062
063        public <T> Set<T> findInstances(Class<T> type) {
064                return Collections.emptySet();
065        }
066        
067        public Class<?>[] getTideInterfaces() {
068                return new Class<?>[] { EjbIdentity.class };
069        }
070
071        @SuppressWarnings("unchecked")
072        public Class<? extends Annotation>[] getTideAnnotations() {
073                return new Class[0];
074        }
075
076    public void initGravity(Gravity gravity) {
077        try {
078            // Set reference in EJB proxy if found
079            InitialContext ic = new InitialContext();
080            org.granite.ejb.Gravity gravityEJB = (org.granite.ejb.Gravity)ic.lookup("java:global" + servletContext.getContextPath() + "/org.granite.ejb.Gravity");
081            gravityEJB.setGravity(gravity);
082            log.info("Registered Gravity EJB");
083        }
084        catch (Exception e) {
085            log.debug(e, "Gravity EJB not found");
086        }
087    }
088
089}