Package org.jboss.as.clustering.jgroups.subsystem

Source Code of org.jboss.as.clustering.jgroups.subsystem.JGroupsSubsystemAdd

/*
* 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.clustering.jgroups.subsystem;

import java.util.List;
import java.util.Locale;
import org.jboss.as.clustering.jgroups.ChannelFactory;
import org.jboss.as.controller.AbstractAddStepHandler;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.ServiceVerificationHandler;
import org.jboss.as.controller.descriptions.DescriptionProvider;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.service.ValueService;
import org.jboss.msc.value.InjectedValue;

import static org.jboss.as.clustering.jgroups.JGroupsLogger.ROOT_LOGGER;

/**
* Handler for JGroups subsystem add operations.
*
* @author Paul Ferraro
*/
public class JGroupsSubsystemAdd extends AbstractAddStepHandler implements DescriptionProvider {

    static ModelNode createOperation(ModelNode address, ModelNode existing) {
        ModelNode operation = Util.getEmptyOperation(ModelDescriptionConstants.ADD, address);
        populate(existing, operation);
        return operation;
    }

    private static void populate(ModelNode source, ModelNode target) {
        target.get(ModelKeys.DEFAULT_STACK).set(source.require(ModelKeys.DEFAULT_STACK));
        target.get(ModelKeys.STACK).setEmptyObject();
    }

    /**
     * {@inheritDoc}
     *
     * @see org.jboss.as.controller.descriptions.DescriptionProvider#getModelDescription(java.util.Locale)
     */
    @Override
    public ModelNode getModelDescription(final Locale locale) {
        return JGroupsDescriptions.getSubsystemAddDescription(locale);
    }

    protected void populateModel(ModelNode operation, ModelNode model) {
        populate(operation, model);
    }

    protected void performRuntime(OperationContext context, ModelNode operation, ModelNode model, ServiceVerificationHandler verificationHandler, List<ServiceController<?>> newControllers) {
        ROOT_LOGGER.activatingSubsystem();

        ServiceTarget target = context.getServiceTarget();
        newControllers.add(target.addService(ProtocolDefaultsService.SERVICE_NAME, new ProtocolDefaultsService())
                .setInitialMode(ServiceController.Mode.ON_DEMAND)
                .install());
        String stack = operation.require(ModelKeys.DEFAULT_STACK).asString();
        InjectedValue<ChannelFactory> factory = new InjectedValue<ChannelFactory>();
        ValueService<ChannelFactory> service = new ValueService<ChannelFactory>(factory);
        newControllers.add(target.addService(ChannelFactoryService.getServiceName(null), service)
                .addDependency(ChannelFactoryService.getServiceName(stack), ChannelFactory.class, factory)
                .setInitialMode(ServiceController.Mode.ON_DEMAND)
                .install());

    }

    protected boolean requiresRuntimeVerification() {
        return false;
    }
}
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