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
015package org.apache.tapestry.web;
016
017import java.util.List;
018
019import javax.servlet.http.HttpServlet;
020
021import org.apache.tapestry.describe.DescriptionReceiver;
022
023/**
024 * Adapts {@link javax.servlet.http.HttpServlet}  as
025 * {@link org.apache.tapestry.web.WebActivator}.
026 * 
027 * @author Howard M. Lewis Ship
028 * @since 4.0
029 */
030public class HttpServletWebActivator implements WebActivator
031{
032    private HttpServlet _httpServlet;
033
034    public HttpServletWebActivator(HttpServlet servlet)
035    {
036        _httpServlet = servlet;
037    }
038
039    public String getActivatorName()
040    {
041        return _httpServlet.getServletName();
042    }
043
044    public List getInitParameterNames()
045    {
046        return WebUtils.toSortedList(_httpServlet.getInitParameterNames());
047    }
048
049    public String getInitParameterValue(String name)
050    {
051        return _httpServlet.getInitParameter(name);
052    }
053
054    public void describeTo(DescriptionReceiver receiver)
055    {
056        receiver.describeAlternate(_httpServlet);
057    }
058
059}