/*
* 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.container.services;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.EventPortlet;
import javax.portlet.EventRequest;
import javax.portlet.EventResponse;
import javax.portlet.Portlet;
import javax.portlet.PortletContext;
import javax.portlet.PortletException;
import javax.portlet.PortletRequest;
import javax.portlet.PortletResponse;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.portlet.ResourceRequest;
import javax.portlet.ResourceResponse;
import javax.portlet.ResourceServingPortlet;
import javax.portlet.filter.ActionFilter;
import javax.portlet.filter.EventFilter;
import javax.portlet.filter.FilterChain;
import javax.portlet.filter.FilterConfig;
import javax.portlet.filter.RenderFilter;
import javax.portlet.filter.ResourceFilter;
import org.apache.jetspeed.factory.PortletFilterInstance;
public class JetspeedFilterChain implements FilterChain
{
private List<PortletFilterInstance> filterList = new ArrayList<PortletFilterInstance>();
private String lifeCycle;
Portlet portlet;
EventPortlet eventPortlet;
ResourceServingPortlet resourceServingPortlet;
PortletContext portletContext;
int filterListIndex = 0;
boolean filtersInitialized;
public JetspeedFilterChain(String lifeCycle)
{
this.lifeCycle = lifeCycle;
}
public void processFilter(PortletRequest req, PortletResponse res, EventPortlet eventPortlet, PortletContext portletContext) throws IOException, PortletException
{
initFilters(portletContext);
this.eventPortlet = eventPortlet;
this.portletContext = portletContext;
doFilter((EventRequest) req, (EventResponse) res);
}
public void processFilter(PortletRequest req, PortletResponse res, ResourceServingPortlet resourceServingPortlet,
PortletContext portletContext) throws IOException, PortletException
{
initFilters(portletContext);
this.resourceServingPortlet = resourceServingPortlet;
this.portletContext = portletContext;
doFilter((ResourceRequest) req, (ResourceResponse) res);
}
public void processFilter(PortletRequest req, PortletResponse res, Portlet portlet, PortletContext portletContext) throws IOException, PortletException
{
initFilters(portletContext);
this.portlet = portlet;
this.portletContext = portletContext;
if (lifeCycle.equals(PortletRequest.ACTION_PHASE))
{
doFilter((ActionRequest) req, (ActionResponse) res);
}
else if (lifeCycle.equals(PortletRequest.RENDER_PHASE))
{
doFilter((RenderRequest) req, (RenderResponse) res);
}
}
public void addFilterInstance(PortletFilterInstance filter)
{
filterList.add(filter);
}
public void doFilter(ActionRequest request, ActionResponse response) throws IOException, PortletException
{
if (filterListIndex < filterList.size())
{
PortletFilterInstance filter = filterList.get(filterListIndex);
filterListIndex++;
ActionFilter actionFilter = (ActionFilter) filter.getRealPortletFilter();
actionFilter.doFilter(request, response, this);
}
else
{
portlet.processAction(request, response);
}
}
public void doFilter(EventRequest request, EventResponse response) throws IOException, PortletException
{
if (filterListIndex < filterList.size())
{
PortletFilterInstance filter = filterList.get(filterListIndex);
filterListIndex++;
EventFilter eventFilter = (EventFilter) filter.getRealPortletFilter();
eventFilter.doFilter(request, response, this);
}
else
{
eventPortlet.processEvent(request, response);
}
}
public void doFilter(RenderRequest request, RenderResponse response) throws IOException, PortletException
{
if (filterListIndex < filterList.size())
{
PortletFilterInstance filter = filterList.get(filterListIndex);
filterListIndex++;
RenderFilter renderFilter = (RenderFilter) filter.getRealPortletFilter();
renderFilter.doFilter(request, response, this);
}
else
{
portlet.render(request, response);
}
}
public void doFilter(ResourceRequest request, ResourceResponse response) throws IOException, PortletException
{
if (filterListIndex < filterList.size())
{
PortletFilterInstance filter = filterList.get(filterListIndex);
filterListIndex++;
ResourceFilter resourceFilter = (ResourceFilter) filter.getRealPortletFilter();
resourceFilter.doFilter(request, response, this);
}
else
{
resourceServingPortlet.serveResource(request, response);
}
}
private void initFilters(PortletContext portletContext) throws PortletException
{
if (!this.filtersInitialized)
{
for (PortletFilterInstance filterInstance : this.filterList)
{
if (!filterInstance.isInitialized())
{
FilterConfig filterConfig = new JetspeedFilterConfigImpl(filterInstance.getFilter(), portletContext);
filterInstance.init(filterConfig);
}
}
this.filtersInitialized = true;
}
}
}