001/*
002 *  Copyright 2015 Anyware Services
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 */
016package org.ametys.plugins.repositoryapp.ui;
017
018import javax.jcr.RepositoryException;
019import javax.jcr.Session;
020
021import org.apache.avalon.framework.service.ServiceException;
022import org.apache.avalon.framework.service.ServiceManager;
023
024import org.ametys.core.ui.Callable;
025import org.ametys.core.ui.StaticClientSideElement;
026import org.ametys.plugins.repositoryapp.RepositoryProvider;
027
028/**
029 * Client-side element which tracks the session state.
030 */
031public class SessionClientSideElement extends StaticClientSideElement
032{
033    
034    /** The repository provider. */
035    protected RepositoryProvider _repositoryProvider;
036    
037    @Override
038    public void service(ServiceManager serviceManager) throws ServiceException
039    {
040        super.service(serviceManager);
041        _repositoryProvider = (RepositoryProvider) serviceManager.lookup(RepositoryProvider.ROLE);
042    }
043    
044    /**
045     * Test if the session has pending changes.
046     * @param workspaceName the workspace name.
047     * @return true if the session has pending changes, false otherwise.
048     * @throws RepositoryException if an error occurs.
049     */
050    @Callable
051    public boolean hasPendingChanges(String workspaceName) throws RepositoryException
052    {
053        Session session = _repositoryProvider.getSession(workspaceName);
054        
055        return session.hasPendingChanges();
056    }
057    
058}