001    // Copyright 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.describe;
016    
017    import java.util.Iterator;
018    
019    import javax.servlet.ServletContext;
020    
021    import org.apache.tapestry.web.WebUtils;
022    
023    /**
024     * Describes a {@link javax.servlet.ServletContext}.
025     * 
026     * @author Howard M. Lewis Ship
027     * @since 4.0
028     */
029    public class ServletContextStrategy implements DescribableStrategy
030    {
031    
032        public void describeObject(Object object, DescriptionReceiver receiver)
033        {
034            ServletContext context = (ServletContext) object;
035    
036            receiver.title("ServletContext");
037    
038            receiver.property("serverInfo", context.getServerInfo());
039            receiver.property("version", context.getMajorVersion() + "."
040                    + context.getMinorVersion());
041    
042            receiver.section("Attributes");
043    
044            Iterator i = WebUtils.toSortedList(context.getAttributeNames())
045                    .iterator();
046            while(i.hasNext())
047            {
048                String key = (String) i.next();
049    
050                receiver.property(key, context.getAttribute(key));
051            }
052    
053            receiver.section("Initialization Parameters");
054            i = WebUtils.toSortedList(context.getInitParameterNames()).iterator();
055            while(i.hasNext())
056            {
057                String key = (String) i.next();
058    
059                receiver.property(key, context.getInitParameter(key));
060            }
061    
062        }
063    
064    }