/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., 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.as.naming;
import java.io.Serializable;
import org.jboss.msc.value.Value;
import org.wildfly.security.manager.WildFlySecurityManager;
/**
* A JNDI injectable which simply uses an MSC {@link Value}
* to fetch the injected value, and takes no action when the value is returned.
*
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
* @author Eduardo Martins
*/
public final class ValueManagedReferenceFactory implements ContextListAndJndiViewManagedReferenceFactory {
private final Value<?> value;
/**
* Construct a new instance.
*
* @param value the value to wrap
*/
public ValueManagedReferenceFactory(final Value<?> value) {
this.value = value;
}
@Override
public ManagedReference getReference() {
return new ValueManagedReference(value.getValue());
}
@Override
public String getInstanceClassName() {
final Object instance = value != null ? value.getValue() : null;
if(instance == null) {
return ContextListManagedReferenceFactory.DEFAULT_INSTANCE_CLASS_NAME;
}
return instance.getClass().getName();
}
@Override
public String getJndiViewInstanceValue() {
final Object instance = value != null ? value.getValue() : null;
if (instance == null) {
return "null";
}
final ClassLoader cl = WildFlySecurityManager.getCurrentContextClassLoaderPrivileged();
try {
WildFlySecurityManager.setCurrentContextClassLoaderPrivileged(instance.getClass().getClassLoader());
return instance.toString();
} finally {
WildFlySecurityManager.setCurrentContextClassLoaderPrivileged(cl);
}
}
public static class ValueManagedReference implements ManagedReference, Serializable {
private static final long serialVersionUID = 1L;
private ValueManagedReference(final Object instance) {
this.instance = instance;
}
private volatile Object instance;
@Override
public void release() {
this.instance = null;
}
@Override
public Object getInstance() {
return this.instance;
}
}
}