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 *                               ***
008 *
009 *   Community License: GPL 3.0
010 *
011 *   This file is free software: you can redistribute it and/or modify
012 *   it under the terms of the GNU General Public License as published
013 *   by the Free Software Foundation, either version 3 of the License,
014 *   or (at your option) any later version.
015 *
016 *   This file is distributed in the hope that it will be useful, but
017 *   WITHOUT ANY WARRANTY; without even the implied warranty of
018 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
019 *   GNU General Public License for more details.
020 *
021 *   You should have received a copy of the GNU General Public License
022 *   along with this program. If not, see <http://www.gnu.org/licenses/>.
023 *
024 *                               ***
025 *
026 *   Available Commercial License: GraniteDS SLA 1.0
027 *
028 *   This is the appropriate option if you are creating proprietary
029 *   applications and you are not prepared to distribute and share the
030 *   source code of your application under the GPL v3 license.
031 *
032 *   Please visit http://www.granitedataservices.com/license for more
033 *   details.
034 */
035
036package org.granite.client.tide.spring;
037
038import org.granite.client.tide.ViewScope.BeanResetter;
039import org.granite.client.tide.ViewScopeHolder;
040import org.springframework.beans.factory.ObjectFactory;
041import org.springframework.beans.factory.config.Scope;
042
043/**
044 * @author William DRAI
045 */
046public class ViewScope implements Scope {
047        
048        // private static final Logger log = Logger.getLogger(ViewScope.class);
049        
050        private org.granite.client.tide.ViewScope beanCache;
051        
052        public ViewScope() {
053        }
054        
055        private org.granite.client.tide.ViewScope getBeanCache() {
056                if (beanCache == null) {
057                        beanCache = ViewScopeHolder.get();
058                        if (beanCache == null)
059                                throw new RuntimeException("View bean cache not set");
060                }
061                return beanCache;
062        }
063        
064        @Override
065        public String getConversationId() {
066                return getBeanCache().getViewId();
067        }
068        
069        @Override
070        public Object get(String name, ObjectFactory<?> objectFactory) {
071                Object instance = getBeanCache().get(name);
072                if (instance == null) {
073                        instance = objectFactory.getObject();
074                        getBeanCache().put(name, instance);
075                }
076                return instance;
077        }
078        
079        @Override
080        public Object resolveContextualObject(String name) {
081                return getBeanCache().get(name);
082        }
083        
084        @Override
085        public void registerDestructionCallback(String name, final Runnable callback) {
086                getBeanCache().addResetter(name, new BeanResetter() {
087                        @Override
088                        public void reset(Object instance) {
089                                callback.run();
090                        }
091                });
092        }
093        
094        @Override
095        public Object remove(String name) {
096                return getBeanCache().remove(name);
097        }
098        
099}
100