/*
* 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.portlets.palm;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletConfig;
import javax.portlet.PortletContext;
import javax.portlet.PortletException;
import javax.portlet.PortletMode;
import javax.portlet.PortletRequest;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import org.apache.jetspeed.CommonPortletServices;
import org.apache.jetspeed.components.portletregistry.PortletRegistry;
import org.apache.jetspeed.components.portletregistry.RegistryException;
import org.apache.jetspeed.factory.PortletFactory;
import org.apache.jetspeed.om.common.portlet.MutablePortletApplication;
import org.apache.jetspeed.tools.pamanager.PortletApplicationManagement;
import org.apache.jetspeed.tools.pamanager.servletcontainer.ApplicationServerManager;
import org.apache.jetspeed.tools.pamanager.servletcontainer.ApplicationServerManagerResult;
import org.apache.portals.bridges.common.GenericServletPortlet;
import org.apache.portals.gems.util.StatusMessage;
import org.apache.portals.messaging.PortletMessaging;
/**
* PALM Portlet
*
* @author <a href="mailto:ate@douma.nu">Ate Douma</a>
* @version $Id: PortletApplicationLifecycleManager.java 348264 2005-11-22 22:06:45Z taylor $
*/
public class PortletApplicationLifecycleManager extends GenericServletPortlet
{
private ApplicationServerManager asm;
private PortletRegistry registry;
private PortletFactory portletFactory;
private PortletApplicationManagement pam;
private boolean serverManagerAvailable;
public void init(PortletConfig config)
throws PortletException
{
super.init(config);
PortletContext context = getPortletContext();
registry = (PortletRegistry)context.getAttribute(CommonPortletServices.CPS_REGISTRY_COMPONENT);
portletFactory = (PortletFactory)context.getAttribute(CommonPortletServices.CPS_PORTLET_FACTORY_COMPONENT);
asm = (ApplicationServerManager)context.getAttribute(CommonPortletServices.CPS_APPLICATION_SERVER_MANAGER_COMPONENT);
pam = (PortletApplicationManagement)context.getAttribute(CommonPortletServices.CPS_PORTLET_APPLICATION_MANAGER);
if (null == registry)
{
throw new PortletException("Failed to find the Portlet Registry on portlet initialization");
}
if (null == portletFactory)
{
throw new PortletException("Failed to find the Portlet Factory on portlet initialization");
}
if (null == pam)
{
throw new PortletException("Failed to find the Portlet Application Manager on portlet initialization");
}
serverManagerAvailable = (asm != null && asm.isConnected());
}
public void doView(RenderRequest request, RenderResponse response)
throws PortletException, IOException
{
request.setAttribute("serverManagerAvailable",serverManagerAvailable?Boolean.TRUE:Boolean.FALSE);
StatusMessage msg = (StatusMessage)PortletMessaging.consume(request, "PALM", "status");
if (msg != null)
{
request.setAttribute("statusMsg", msg);
}
if ( request.getPortletSession().getAttribute("list") == null )
{
List list = new ArrayList();
Iterator apps = registry.getPortletApplications().iterator();
while (apps.hasNext())
{
MutablePortletApplication pa = (MutablePortletApplication)apps.next();
PortletApplicationStatusBean bean = new PortletApplicationStatusBean(pa, portletFactory.isPortletApplicationRegistered(pa));
list.add(bean);
}
request.getPortletSession().setAttribute("list",list);
}
super.doView(request, response);
}
public void processAction(ActionRequest request, ActionResponse response)
throws PortletException, IOException
{
if (request.getPortletMode() == PortletMode.VIEW)
{
String action = request.getParameter("action");
String value = request.getParameter("value");
if ( !isEmpty(action))
{
// enforce list is rebuild next doView
request.getPortletSession().removeAttribute("list");
if (!action.equals("refresh") && !isEmpty(value))
{
MutablePortletApplication pa = registry.getPortletApplication(value);
if ( pa == null )
{
publishStatusMessage(request, "PALM", "status", null, "Portlet Application for lookup value "+value+" no longer exists");
}
else if ( pa.getApplicationType() == MutablePortletApplication.LOCAL )
{
// TODO
}
else // ( pa.getApplicationType() == MutablePortletApplication.WEBAPP )
{
if (action.equals("start"))
{
startPA(request,pa);
}
else if (action.equals("stop"))
{
stopPA(request,pa);
}
else if (action.equals("undeploy"))
{
undeployPA(request,pa);
}
else if (action.equals("delete"))
{
deletePA(request,pa);
}
}
}
}
}
}
protected void publishStatusMessage(PortletRequest request, String portlet, String topic, Throwable e, String message)
{
if ( e != null )
{
message = message + ": " + e.toString();
Throwable cause = e.getCause();
if (cause != null)
{
message = message + ", " + cause.getMessage();
}
}
StatusMessage sm = new StatusMessage(message, StatusMessage.ERROR);
try
{
// TODO: fixme, bug in Pluto on portlet session
PortletMessaging.publish(request, portlet, topic, sm);
}
catch (Exception ee)
{
System.err.println("Failed to publish message: " + message);
}
}
protected void startPA(ActionRequest request, MutablePortletApplication pa)
{
if ( portletFactory.isPortletApplicationRegistered(pa))
{
publishStatusMessage(request, "PALM", "status", null, "Portlet Application "+pa.getName()+" already running");
}
else if ( !serverManagerAvailable || !asm.isConnected() )
{
publishStatusMessage(request, "PALM", "status", null, "Application Server Manager not available");
}
else
{
try
{
ApplicationServerManagerResult result = asm.start(pa.getWebApplicationDefinition().getContextRoot());
if ( !result.isOk() )
{
publishStatusMessage(request, "PALM", "status", null, result.getMessage());
}
}
catch (Exception e)
{
e.printStackTrace();
publishStatusMessage(request, "PAM", "status", e, "Could not start Portlet Application "+pa.getName());
}
}
}
protected void stopPA(ActionRequest request, MutablePortletApplication pa)
{
if ( !portletFactory.isPortletApplicationRegistered(pa))
{
publishStatusMessage(request, "PALM", "status", null, "Portlet Application "+pa.getName()+" no longer running");
}
else if ( !serverManagerAvailable || !asm.isConnected() )
{
publishStatusMessage(request, "PALM", "status", null, "Application Server Manager not available");
}
else
{
try
{
ApplicationServerManagerResult result = asm.stop(pa.getWebApplicationDefinition().getContextRoot());
if ( !result.isOk() )
{
publishStatusMessage(request, "PALM", "status", null, result.getMessage());
}
}
catch (Exception e)
{
e.printStackTrace();
publishStatusMessage(request, "PALM", "status", e, "Could not stop Portlet Application "+pa.getName());
}
}
}
protected void undeployPA(ActionRequest request, MutablePortletApplication pa)
{
if ( !serverManagerAvailable || !asm.isConnected() )
{
publishStatusMessage(request, "PALM", "status", null, "Application Server Manager not available");
}
else
{
try
{
ApplicationServerManagerResult result = asm.undeploy(pa.getWebApplicationDefinition().getContextRoot());
if ( !result.isOk() )
{
publishStatusMessage(request, "PALM", "status", null, result.getMessage());
}
}
catch (Exception e)
{
e.printStackTrace();
publishStatusMessage(request, "PALM", "status", e, "Could not undeploy Portlet Application "+pa.getName());
}
}
}
protected void deletePA(ActionRequest request, MutablePortletApplication pa)
{
if ( portletFactory.isPortletApplicationRegistered(pa))
{
publishStatusMessage(request, "PALM", "status", null, "Portlet Application "+pa.getName()+" is still running");
}
else
{
try
{
pam.unregisterPortletApplication(pa.getName());
}
catch (RegistryException e)
{
e.printStackTrace();
publishStatusMessage(request, "PALM", "status", e, "Could not delete Portlet Application "+pa.getName());
}
}
}
private boolean isEmpty(String s)
{
if (s == null) return true;
if (s.trim().equals("")) return true;
return false;
}
}