/*
* 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.aop.microcontainer.aspects.jndi;
import java.util.Properties;
import javax.naming.InitialContext;
import org.jboss.aop.joinpoint.Invocation;
import org.jboss.aop.joinpoint.MethodInvocation;
import org.jboss.dependency.spi.ControllerContext;
import org.jboss.kernel.spi.dependency.KernelControllerContext;
import org.jboss.logging.Logger;
import org.jboss.metadata.spi.MetaData;
import org.jboss.util.naming.Util;
/**
* The jndi lifecycle callback.
* This puts the beans marked with @JndiBinding into jndi.
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
* @version $Revision: 1.1 $
*/
public class JndiLifecycleCallback
{
private static final Logger log = Logger.getLogger(JndiLifecycleCallback.class);
private Properties env;
public String getName()
{
return getClass().getName();
}
/**
* Get the InitialContext properties to use for binding/unbinding
* @return the InitialContext ctor env
*/
public Properties getEnv()
{
return env;
}
/**
* Set the InitialContext properties to use for binding/unbinding
* @param env - the InitialContext ctor env
*/
public void setEnv(Properties env)
{
this.env = env;
}
/**
* Bind the target on setKernelControllerContext, unbind on any other method provided that
* the invocation has a JndiBinding annotation.
*
* @param invocation the invocation
* @return the result
* @throws Throwable for any error
*/
public Object invoke(Invocation invocation) throws Throwable
{
MethodInvocation mi = (MethodInvocation) invocation;
KernelControllerContext context = (KernelControllerContext) mi.getArguments()[0];
boolean trace = log.isTraceEnabled();
JndiBinding bindingInfo = (JndiBinding) invocation.resolveClassAnnotation(JndiBinding.class);
if( trace )
log.trace("Checking method: "+mi.getMethod()+", bindingInfo: "+bindingInfo);
// If this is the setKernelControllerContext callback, bind the target into jndi
if ("setKernelControllerContext".equals(mi.getMethod().getName()) && bindingInfo != null)
{
InitialContext ctx = new InitialContext(env);
Object target = context.getTarget();
Util.bind(ctx, bindingInfo.name(), target);
if( trace )
log.trace("Bound to: "+bindingInfo.name());
String[] aliases = bindingInfo.aliases();
if( aliases != null )
{
for(String name : aliases)
{
Util.bind(ctx, name, target);
if( trace )
log.trace("Bound to alias: "+bindingInfo.name());
}
}
}
// If this is the unsetKernelControllerContext callback, unbind the target
else if( bindingInfo != null )
{
InitialContext ctx = new InitialContext(env);
Util.unbind(ctx, bindingInfo.name());
if( trace )
log.trace("Unbound: "+bindingInfo.name());
String[] aliases = bindingInfo.aliases();
if( aliases != null )
{
for(String name : aliases)
{
Util.unbind(ctx, name);
if( trace )
log.trace("Unbound alias: "+bindingInfo.name());
}
}
}
else if ( trace )
{
log.trace("Ignoring null binding info");
}
return null;
}
public void install(ControllerContext context) throws Exception
{
JndiBinding bindingInfo = readJndiAnnotation(context);
boolean trace = log.isTraceEnabled();
if( trace )
log.trace("Binding into JNDI: " + context.getName() + ", bindingInfo: " + bindingInfo);
// If this is the setKernelControllerContext callback, bind the target into jndi
InitialContext ctx = new InitialContext(env);
Object target = context.getTarget();
Util.bind(ctx, bindingInfo.name(), target);
if( trace )
log.trace("Bound to: "+bindingInfo.name());
String[] aliases = bindingInfo.aliases();
if( aliases != null )
{
for(String name : aliases)
{
Util.bind(ctx, name, target);
if( trace )
log.trace("Bound to alias: "+bindingInfo.name());
}
}
}
public void uninstall(ControllerContext context) throws Exception
{
JndiBinding bindingInfo = readJndiAnnotation(context);
boolean trace = log.isTraceEnabled();
InitialContext ctx = new InitialContext(env);
Util.unbind(ctx, bindingInfo.name());
if( trace )
log.trace("Unbound: "+bindingInfo.name());
String[] aliases = bindingInfo.aliases();
if( aliases != null )
{
for(String name : aliases)
{
Util.unbind(ctx, name);
if( trace )
log.trace("Unbound alias: "+bindingInfo.name());
}
}
}
private JndiBinding readJndiAnnotation(ControllerContext context)
{
MetaData metaData = context.getScopeInfo().getMetaData();
if (metaData != null)
return metaData.getAnnotation(JndiBinding.class);
return null;
}
}