/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Jetspeed" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache" or
* "Apache Jetspeed", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/*
* VelocityViewProcessor.java
*
*
* Created on January 27, 2003, 8:54 PM
*/
package org.apache.jetspeed.portal.portlets.viewprocessor;
import org.apache.jetspeed.portal.Portlet;
import org.apache.jetspeed.portal.PortletException;
import org.apache.jetspeed.portal.portlets.*;
import org.apache.jetspeed.portal.portlets.GenericMVCContext;
import org.apache.jetspeed.portal.portlets.viewprocessor.*;
import org.apache.jetspeed.services.TemplateLocator;
import org.apache.jetspeed.util.JetspeedClearElement;
import org.apache.turbine.services.velocity.TurbineVelocity;
import org.apache.turbine.util.Log;
import org.apache.turbine.util.RunData;
/**
*
* @author tkuebler
*/
public class VelocityViewProcessor
implements ViewProcessor
{
/** Creates a new instance of VelocityViewProcessor */
public VelocityViewProcessor()
{
}
public void init(Portlet portlet)
throws PortletException
{
}
/** Process the template passed in the context
* (context.get("template")). Invoked by the GenericMVCPortlet
* after action handling to process the template type
* in question.
*
*/
public Object processView(GenericMVCContext context)
{
// generate the content
JetspeedClearElement element = null;
String template = (String) context.get("template");
Log.info("VelocityViewProcessor - processing " + template);
try
{
if (-1 == template.indexOf(".vm"))
{
template = template + ".vm";
}
Log.info("VelocityViewProcessor - locating template - " +
((RunData) context.get("data")).toString() + template);
String templatePath = TemplateLocator.locatePortletTemplate(
(RunData) context.get("data"),
template);
// need to add cache support
Portlet portlet = (Portlet) context.get("portlet");
RunData rundata = (RunData) context.get("data");
long cachePeriod = -1;
AbstractPortlet abstractPortlet = null;
// STW: Safety net ;)
if(portlet instanceof AbstractPortlet)
{
abstractPortlet =(AbstractPortlet) portlet;
if(abstractPortlet.getExpirationMillis() != null)
{
cachePeriod = abstractPortlet.getExpirationMillis().longValue();
}
}
if (cachePeriod > 0 && abstractPortlet != null)
{
String s = TurbineVelocity.handleRequest(context, templatePath);
abstractPortlet.setExpirationMillis(
cachePeriod + System.currentTimeMillis());
element = new JetspeedClearElement(s);
}
else
{
TurbineVelocity.handleRequest(
context, templatePath, rundata.getOut());
}
}
catch (Exception e)
{
element = new JetspeedClearElement(e.toString());
Log.error("VelocityViewProcessor - had problems handling request - " + e);
e.printStackTrace();
}
TurbineVelocity.requestFinished(context);
if (element == null)
{
element = new JetspeedClearElement("");
}
return element;
}
}