/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jetspeed.aggregator.impl;
import java.io.IOException;
import java.util.List;
import org.apache.jetspeed.PortalReservedParameters;
import org.apache.jetspeed.aggregator.PageAggregator;
import org.apache.jetspeed.aggregator.PortletRenderer;
import org.apache.jetspeed.container.PortletWindow;
import org.apache.jetspeed.container.state.NavigationalState;
import org.apache.jetspeed.exception.JetspeedException;
import org.apache.jetspeed.om.page.ContentFragment;
import org.apache.jetspeed.om.page.ContentPage;
import org.apache.jetspeed.request.RequestContext;
/**
* ContentPageAggregator builds the content required to render a page of portlets.
*
* @author <a href="mailto:raphael@apache.org">Rapha�l Luta </a>
* @author <a href="mailto:taylor@apache.org">David Sean Taylor </a>
* @version $Id: PageAggregatorImpl.java 886901 2009-12-03 20:15:39Z taylor $
*/
public class PageAggregatorImpl extends BaseAggregatorImpl implements PageAggregator
{
public PageAggregatorImpl( PortletRenderer renderer)
{
super(renderer);
}
/**
* Builds the portlet set defined in the context into a portlet tree.
*
* @return Unique Portlet Entity ID
*/
public void build( RequestContext context ) throws JetspeedException, IOException
{
ContentPage page = context.getPage();
if (null == page)
{
throw new JetspeedException("Failed to find PSML Pin ContentPageAggregator.build");
}
ContentFragment root = page.getRootFragment();
if (root == null)
{
throw new JetspeedException("No root ContentFragment found in ContentPage");
}
// handle maximized state
NavigationalState nav = context.getPortalURL().getNavigationalState();
PortletWindow window = nav.getMaximizedWindow();
if (null != window)
{
renderMaximizedWindow(context, page, root, window);
}
else
{
aggregateAndRender(root, context, page);
}
// write all rendered content
renderContent(context, root);
if (null != window)
{
window.removeAttribute(PortalReservedParameters.MAXIMIZED_FRAGMENT_ATTRIBUTE);
window.removeAttribute(PortalReservedParameters.MAXIMIZED_LAYOUT_ATTRIBUTE);
}
releaseBuffers(root, context);
}
@SuppressWarnings("unchecked")
protected void aggregateAndRender( ContentFragment f, RequestContext context, ContentPage page )
{
List<ContentFragment> contentFragments = f.getFragments();
if (contentFragments != null && !contentFragments.isEmpty())
{
for (ContentFragment child : contentFragments)
{
if (!"hidden".equals(f.getState()))
{
aggregateAndRender(child, context, page);
}
}
}
renderer.renderNow(f, context);
}
}