001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.workflow;
016    
017    import com.liferay.portal.kernel.security.pacl.DoPrivileged;
018    import com.liferay.portal.kernel.util.ListUtil;
019    import com.liferay.portal.kernel.workflow.WorkflowHandler;
020    import com.liferay.portal.kernel.workflow.WorkflowHandlerRegistry;
021    
022    import java.util.List;
023    import java.util.Map;
024    import java.util.TreeMap;
025    
026    /**
027     * @author Bruno Farache
028     * @author Marcellus Tavares
029     */
030    @DoPrivileged
031    public class WorkflowHandlerRegistryImpl implements WorkflowHandlerRegistry {
032    
033            @Override
034            public List<WorkflowHandler> getScopeableWorkflowHandlers() {
035                    return ListUtil.fromMapValues(_scopeableWorkflowHandlerMap);
036            }
037    
038            @Override
039            public WorkflowHandler getWorkflowHandler(String className) {
040                    return _workflowHandlerMap.get(className);
041            }
042    
043            @Override
044            public List<WorkflowHandler> getWorkflowHandlers() {
045                    return ListUtil.fromMapValues(_workflowHandlerMap);
046            }
047    
048            @Override
049            public void register(WorkflowHandler workflowHandler) {
050                    synchronized (this) {
051                            _workflowHandlerMap.put(
052                                    workflowHandler.getClassName(), workflowHandler);
053    
054                            if (workflowHandler.isScopeable()) {
055                                    _scopeableWorkflowHandlerMap.put(
056                                            workflowHandler.getClassName(), workflowHandler);
057                            }
058                    }
059            }
060    
061            @Override
062            public void unregister(WorkflowHandler workflowHandler) {
063                    synchronized (this) {
064                            _workflowHandlerMap.remove(workflowHandler.getClassName());
065    
066                            if (workflowHandler.isScopeable()) {
067                                    _scopeableWorkflowHandlerMap.remove(
068                                            workflowHandler.getClassName());
069                            }
070                    }
071            }
072    
073            private Map<String, WorkflowHandler> _scopeableWorkflowHandlerMap =
074                    //new ConcurrentSkipListMap<String, WorkflowHandler>();
075                    new TreeMap<String, WorkflowHandler>();
076            private Map<String, WorkflowHandler> _workflowHandlerMap =
077                    new TreeMap<String, WorkflowHandler>();
078    
079    }