001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    
018    package org.apache.geronimo.console.ajax;
019    
020    import javax.servlet.http.HttpSession;
021    
022    import uk.ltd.getahead.dwr.WebContextFactory;
023    
024    /**
025     * Provides information to an AJAX client during server side
026     * activities.
027     */
028    public class ProgressMonitor
029    {
030        public ProgressInfo getProgressInfo()
031        {
032            HttpSession session = WebContextFactory.get().getSession(false);
033    
034            if (session.getAttribute(ProgressInfo.PROGRESS_INFO_KEY) != null) {
035                return (ProgressInfo) session.getAttribute(ProgressInfo.PROGRESS_INFO_KEY);
036            } else {
037                return new ProgressInfo();
038            }
039        }
040    }