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.portlet;
016
017import java.util.List;
018
019import javax.portlet.PortletSession;
020
021import org.apache.hivemind.util.Defense;
022import org.apache.tapestry.describe.DescriptionReceiver;
023import org.apache.tapestry.web.WebSession;
024import org.apache.tapestry.web.WebUtils;
025
026/**
027 * Adapts a {@link javax.portlet.PortletSession}as a {@link org.apache.tapestry.web.WebSession}.
028 * 
029 * @author Howard M. Lewis Ship
030 * @since 4.0
031 */
032public class PortletWebSession implements WebSession
033{
034    private final PortletSession _portletSession;
035
036    public PortletWebSession(final PortletSession portletSession)
037    {
038        Defense.notNull(portletSession, "portletSession");
039
040        _portletSession = portletSession;
041    }
042
043    public void describeTo(DescriptionReceiver receiver)
044    {
045        receiver.describeAlternate(_portletSession);
046    }
047
048    public String getId()
049    {
050        return _portletSession.getId();
051    }
052
053    public boolean isNew()
054    {
055        return _portletSession.isNew();
056    }
057
058    public List getAttributeNames()
059    {
060        return WebUtils.toSortedList(_portletSession.getAttributeNames());
061    }
062
063    public Object getAttribute(String name)
064    {
065        return _portletSession.getAttribute(name);
066    }
067
068    public void setAttribute(String name, Object attribute)
069    {
070        _portletSession.setAttribute(name, attribute);
071    }
072
073    public void invalidate()
074    {
075        _portletSession.invalidate();
076    }
077
078}