/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, 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.wildfly.extension.messaging.activemq.ha;
import static org.jboss.as.controller.OperationContext.Stage.MODEL;
import java.util.Collection;
import java.util.Set;
import org.jboss.as.controller.AbstractAddStepHandler;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.registry.Resource;
import org.jboss.dmr.ModelNode;
import org.wildfly.extension.messaging.activemq.ActiveMQReloadRequiredHandlers;
import org.wildfly.extension.messaging.activemq.logging.MessagingLogger;
/**
* @author <a href="http://jmesnil.net/">Jeff Mesnil</a> (c) 2014 Red Hat inc.
*/
public class ManagementHelper {
/**
* Create an ADD operation that can check that there is no other sibling when the resource is added.
*
* @param childType the type of children to check for the existence of siblings
* @param allowSibling whether it is allowed to have sibling for the resource that is added.
* @param attributes the attributes of the ADD operation
*/
static AbstractAddStepHandler createAddOperation(final String childType, final boolean allowSibling, Collection<? extends AttributeDefinition> attributes) {
return new ActiveMQReloadRequiredHandlers.AddStepHandler(attributes) {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
super.execute(context, operation);
if (!allowSibling) {
context.addStep(checkNoOtherSibling(childType), MODEL);
}
}
};
}
static OperationStepHandler checkNoOtherSibling(final String childType) {
return new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
PathAddress parentAddress = context.getCurrentAddress().getParent();
Resource parent = context.readResourceFromRoot(parentAddress, false);
Set<String> children = parent.getChildrenNames(childType);
if (children.size() > 1) {
throw MessagingLogger.ROOT_LOGGER.onlyOneChildIsAllowed(childType, children);
}
}
};
}
}