/*
* 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.ejb3.subsystem;
import java.util.List;
import org.jboss.as.controller.AbstractWriteAttributeHandler;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceRegistry;
import org.jboss.msc.service.ValueService;
import org.jboss.msc.value.ImmediateValue;
/**
* @author Stuart Douglas
*/
public class EJB3SubsystemDefaultEntityBeanOptimisticLockingWriteHandler extends AbstractWriteAttributeHandler<Void> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("ejb3", "entity-bean", "optimistic-locking");
public static final EJB3SubsystemDefaultEntityBeanOptimisticLockingWriteHandler INSTANCE =
new EJB3SubsystemDefaultEntityBeanOptimisticLockingWriteHandler();
private EJB3SubsystemDefaultEntityBeanOptimisticLockingWriteHandler() {
super(EJB3SubsystemRootResourceDefinition.DEFAULT_ENTITY_BEAN_OPTIMISTIC_LOCKING);
}
@Override
protected boolean applyUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName,
ModelNode resolvedValue, ModelNode currentValue, HandbackHolder<Void> handbackHolder) throws OperationFailedException {
final ModelNode model = context.readResource(PathAddress.EMPTY_ADDRESS).getModel();
updateOptimisticLocking(context, model, null);
return false;
}
@Override
protected void revertUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName,
ModelNode valueToRestore, ModelNode valueToRevert, Void handback) throws OperationFailedException {
final ModelNode restored = context.readResource(PathAddress.EMPTY_ADDRESS).getModel().clone();
restored.get(attributeName).set(valueToRestore);
updateOptimisticLocking(context, restored, null);
}
void updateOptimisticLocking(final OperationContext context, final ModelNode model, List<ServiceController<?>> newControllers) throws OperationFailedException {
final ModelNode enabled = EJB3SubsystemRootResourceDefinition.DEFAULT_ENTITY_BEAN_OPTIMISTIC_LOCKING.resolveModelAttribute(context, model);
final ServiceRegistry serviceRegistry = context.getServiceRegistry(true);
ServiceController existingService = serviceRegistry.getService(SERVICE_NAME);
// if a default optimistic locking config is installed, remove it
if (existingService != null) {
context.removeService(existingService);
}
if (enabled.isDefined()) {
final Service<Boolean> newDefaultPoolConfigService = new ValueService<Boolean>(new ImmediateValue(enabled.asBoolean()));
ServiceController<?> newController =
context.getServiceTarget().addService(SERVICE_NAME, newDefaultPoolConfigService)
.install();
if (newControllers != null) {
newControllers.add(newController);
}
}
}
}