/*
* JBoss, a division of Red Hat
* Copyright 2011, Red Hat Middleware, LLC, and individual
* contributors as indicated by the @authors tag. See the
* copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.gatein.wsrp.consumer.registry;
import org.gatein.pc.api.NoSuchPortletException;
import org.gatein.pc.federation.FederatedPortletInvoker;
import org.gatein.pc.federation.FederatingPortletInvoker;
import org.gatein.pc.federation.PortletInvokerResolver;
import org.gatein.pc.federation.impl.FederatedPortletInvokerService;
import org.gatein.wsrp.WSRPConsumer;
import org.gatein.wsrp.consumer.ConsumerException;
import org.gatein.wsrp.consumer.spi.ConsumerRegistrySPI;
import java.util.Collection;
/**
* Attempts to activate a WSRP consumer named like the missing invoker that trigger the invocation of this
* PortletInvokerResolver. This is in particularly helpful to activate configured consumers that haven't been started
* yet
* when a portlet referencing them is accessed.
*
* @author <a href="mailto:chris.laprun@jboss.com">Chris Laprun</a>
* @version $Revision$
*/
public class RegisteringPortletInvokerResolver implements PortletInvokerResolver
{
private transient ConsumerRegistrySPI consumerRegistry;
public FederatedPortletInvoker resolvePortletInvokerFor(String invokerId, FederatingPortletInvoker callingInvoker, String compoundPortletId) throws NoSuchPortletException
{
FederatingPortletInvoker registryInvoker = consumerRegistry.getFederatingPortletInvoker();
if (registryInvoker != callingInvoker)
{
throw new IllegalArgumentException("Trying to use a ConsumerRegistry already linked to a different FederatingPortletInvoker ("
+ registryInvoker + ") than the specified one (" + callingInvoker + ")");
}
WSRPConsumer consumer = consumerRegistry.getConsumer(invokerId);
// if there's no consumer with that invoker id, then there's nothing much we can do
if (consumer == null)
{
if (compoundPortletId != null)
{
throw new NoSuchPortletException(compoundPortletId);
}
else
{
return null;
}
}
else
{
// register it with the FederatingPortletInvoker
synchronized (this)
{
try
{
consumerRegistry.registerWithFederatingPortletInvoker(consumer);
return new FederatedPortletInvokerService(callingInvoker, invokerId, consumer);
}
catch (ConsumerException e)
{
return null;
}
}
}
}
public boolean knows(String invoker)
{
return consumerRegistry.containsConsumer(invoker);
}
public Collection<String> getKnownInvokerIds()
{
return consumerRegistry.getConfiguredConsumersIds();
}
public void setConsumerRegistry(ConsumerRegistrySPI consumerRegistry)
{
this.consumerRegistry = consumerRegistry;
}
}