/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.jboss.ejb3.stateful;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import javax.ejb.RemoteHome;
import javax.naming.NamingException;
import org.jboss.aop.Advisor;
import org.jboss.aop.AspectManager;
import org.jboss.aop.Dispatcher;
import org.jboss.aop.advice.AdviceStack;
import org.jboss.aop.advice.Interceptor;
import org.jboss.aspects.remoting.InvokeRemoteInterceptor;
import org.jboss.aspects.remoting.PojiProxy;
import org.jboss.ejb3.JBossProxy;
import org.jboss.ejb3.ProxyFactory;
import org.jboss.ejb3.ProxyFactoryHelper;
import org.jboss.ejb3.annotation.RemoteBinding;
import org.jboss.ejb3.remoting.IsLocalProxyFactoryInterceptor;
import org.jboss.ejb3.remoting.RemoteProxyFactory;
import org.jboss.ejb3.session.SessionContainer;
import org.jboss.logging.Logger;
import org.jboss.naming.Util;
import org.jboss.remoting.InvokerLocator;
/**
* Comment
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @author Brian Stansberry
*
* @version $Revision: 68288 $
*/
public class StatefulRemoteProxyFactory extends BaseStatefulProxyFactory implements RemoteProxyFactory
{
private static final Logger log = Logger.getLogger(StatefulRemoteProxyFactory.class);
// public static final String FACTORY_ATTRIBUTE = ",element=ProxyFactory";
private RemoteBinding binding;
private InvokerLocator locator;
public StatefulRemoteProxyFactory(SessionContainer container, RemoteBinding binding)
{
super(container, binding.jndiBinding());
this.binding = binding;
}
protected Class<?>[] getInterfaces()
{
SessionContainer statefulContainer = (SessionContainer) getContainer();
RemoteHome remoteHome = (RemoteHome) statefulContainer.resolveAnnotation(RemoteHome.class);
boolean bindTogether = false;
if (remoteHome != null && bindHomeAndBusinessTogether(statefulContainer))
bindTogether = true;
// Obtain all remote interfaces
Set<Class<?>> remoteInterfaces = new HashSet<Class<?>>();
remoteInterfaces.addAll(Arrays.asList(ProxyFactoryHelper.getRemoteAndBusinessRemoteInterfaces(getContainer())));
// Ensure that if EJB 2.1 Components are defined, they're complete
this.ensureEjb21ViewComplete(remoteHome == null ? null : remoteHome.value(), ProxyFactoryHelper
.getRemoteInterfaces(getContainer()));
// Add JBossProxy
remoteInterfaces.add(JBossProxy.class);
// If binding along w/ home, add home
if (bindTogether)
{
remoteInterfaces.add(remoteHome.value());
}
// Return
return remoteInterfaces.toArray(new Class<?>[]
{});
}
protected boolean bindHomeAndBusinessTogether(SessionContainer container)
{
return ProxyFactoryHelper.getHomeJndiName(container).equals(ProxyFactoryHelper.getRemoteJndiName(container));
}
public void init() throws Exception
{
super.init();
String clientBindUrl = ProxyFactoryHelper.getClientBindUrl(binding);
locator = new InvokerLocator(clientBindUrl);
}
public void start() throws Exception
{
init();
super.start();
Class[] interfaces = {ProxyFactory.class};
String targetId = getTargetId();
String clientBindUrl = ProxyFactoryHelper.getClientBindUrl(binding);
Object factoryProxy = createPojiProxy(targetId, interfaces, clientBindUrl);
log.debug("Binding proxy factory for " + getContainer().getEjbName() + " in JNDI at " + jndiName + PROXY_FACTORY_NAME + " with client bind url " + clientBindUrl);
try
{
Util.rebind(getContainer().getInitialContext(), jndiName + PROXY_FACTORY_NAME, factoryProxy);
}
catch (NamingException e)
{
NamingException namingException = new NamingException("Could not bind stateful remote proxy with ejb name " + getContainer().getEjbName() + " into JNDI under jndiName: " + getContainer().getInitialContext().getNameInNamespace() + "/" + jndiName + PROXY_FACTORY_NAME);
namingException.setRootCause(e);
throw namingException;
}
assert !Dispatcher.singleton.isRegistered(targetId) : targetId + " is already registered";
Dispatcher.singleton.registerTarget(targetId, this);
SessionContainer statefulContainer = (SessionContainer) getContainer();
RemoteHome remoteHome = (RemoteHome) statefulContainer.resolveAnnotation(RemoteHome.class);
if (remoteHome != null && !bindHomeAndBusinessTogether(statefulContainer))
{
Object homeProxy = createHomeProxy(remoteHome.value());
String homeJndiName = ProxyFactoryHelper.getHomeJndiName(getContainer());
log.debug("Binding home proxy at " + homeJndiName);
Util.rebind(getContainer().getInitialContext(), homeJndiName, homeProxy);
}
}
public void stop() throws Exception
{
Util.unbind(getContainer().getInitialContext(), jndiName + PROXY_FACTORY_NAME);
Dispatcher.singleton.unregisterTarget(getTargetId());
SessionContainer statefulContainer = (SessionContainer) getContainer();
RemoteHome remoteHome = (RemoteHome) statefulContainer.resolveAnnotation(RemoteHome.class);
if (remoteHome != null && !bindHomeAndBusinessTogether(statefulContainer))
{
Util.unbind(getContainer().getInitialContext(), ProxyFactoryHelper.getHomeJndiName(getContainer()));
}
super.stop();
}
public Object createHomeProxy(Class homeInterface)
{
try
{
Object containerId = getContainer().getObjectName().getCanonicalName();
String stackName = "StatefulSessionClientInterceptors";
if (binding.interceptorStack() != null && !binding.interceptorStack().equals(""))
{
stackName = binding.interceptorStack();
}
AdviceStack stack = AspectManager.instance().getAdviceStack(stackName);
if (stack == null) throw new RuntimeException("unable to find interceptor stack: " + stackName);
StatefulHomeRemoteProxy proxy = new StatefulHomeRemoteProxy(getContainer(), stack.createInterceptors((Advisor) getContainer(), null), locator);
setEjb21Objects(proxy);
Class[] intfs = {homeInterface};
return java.lang.reflect.Proxy.newProxyInstance(getContainer().getBeanClass().getClassLoader(), intfs, proxy);
}
catch (IllegalArgumentException e)
{
throw new RuntimeException(e); //To change body of catch statement use Options | File Templates.
}
}
public Object createProxy()
{
String stackName = "StatefulSessionClientInterceptors";
if (binding.interceptorStack() != null && !binding.interceptorStack().equals(""))
{
stackName = binding.interceptorStack();
}
AdviceStack stack = AspectManager.instance().getAdviceStack(stackName);
if (stack == null) throw new RuntimeException("unable to find interceptor stack: " + stackName);
StatefulRemoteProxy proxy = new StatefulRemoteProxy(getContainer(), stack.createInterceptors((Advisor) getContainer(), null), locator);
setEjb21Objects(proxy);
return constructProxy(proxy);
}
protected StatefulHandleImpl getHandle()
{
StatefulHandleImpl handle = new StatefulHandleImpl();
handle.jndiName = jndiName;
return handle;
}
public Object createProxy(Object id)
{
String stackName = "StatefulSessionClientInterceptors";
if (binding.interceptorStack() != null && !binding.interceptorStack().equals(""))
{
stackName = binding.interceptorStack();
}
AdviceStack stack = AspectManager.instance().getAdviceStack(stackName);
StatefulRemoteProxy proxy = new StatefulRemoteProxy(getContainer(), stack.createInterceptors((Advisor) getContainer(), null), locator, id);
setEjb21Objects(proxy);
return constructProxy(proxy);
}
/**
* @return unique name for this proxy factory
*/
protected String getTargetId()
{
assert jndiName != null : "jndiName is null";
return jndiName + PROXY_FACTORY_NAME;
}
protected Object createPojiProxy(Object oid, Class[] interfaces, String uri) throws Exception
{
InvokerLocator locator = new InvokerLocator(uri);
Interceptor[] interceptors = {IsLocalProxyFactoryInterceptor.singleton, InvokeRemoteInterceptor.singleton};
PojiProxy proxy = new PojiProxy(oid, locator, interceptors);
return Proxy.newProxyInstance(interfaces[0].getClassLoader(), interfaces, proxy);
}
}