org.jboss.as.clustering.controller.ModuleServiceConfigurator Maven / Gradle / Ivy

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The code in this module is not explicitly related to clustering, but rather contains resuable code used by clustering modules and any modules that integrate with clustering.

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/*
 * Copyright The WildFly Authors
 * SPDX-License-Identifier: Apache-2.0
 */

package org.jboss.as.clustering.controller;

import java.util.List;

import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.capability.RuntimeCapability;
import org.jboss.dmr.ModelNode;
import org.jboss.modules.Module;
import org.wildfly.subsystem.resource.ResourceModelResolver;

/**
 * Configures a service providing a {@link Module}.
 * @author Paul Ferraro
 */
public class ModuleServiceConfigurator extends AbstractModulesServiceConfigurator {

    public ModuleServiceConfigurator(RuntimeCapability capability, AttributeDefinition attribute) {
        super(capability, new ResourceModelResolver<>() {
            @Override
            public List resolve(OperationContext context, ModelNode model) throws OperationFailedException {
                String module = attribute.resolveModelAttribute(context, model).asStringOrNull();
                return (module != null) ? List.of(module) : List.of();
            }
        });
    }

    @Override
    public Module apply(List modules) {
        return !modules.isEmpty() ? modules.get(0) : null;
    }
}