org.jboss.as.clustering.controller.ModuleServiceConfigurator Maven / Gradle / Ivy
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* as indicated by the @author tags. See the copyright.txt file in the
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*
* 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,
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* 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
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package org.jboss.as.clustering.controller;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.server.Services;
import org.jboss.dmr.ModelNode;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleLoadException;
import org.jboss.modules.ModuleLoader;
import org.jboss.msc.Service;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.wildfly.clustering.service.FunctionalService;
import org.wildfly.clustering.service.ServiceConfigurator;
import org.wildfly.clustering.service.SimpleServiceNameProvider;
/**
* Configures a service providing a {@link Module}.
* @author Paul Ferraro
*/
public class ModuleServiceConfigurator extends SimpleServiceNameProvider implements ResourceServiceConfigurator, Supplier {
private final Attribute attribute;
private volatile String identifier;
private volatile Supplier loader;
public ModuleServiceConfigurator(ServiceName name, Attribute attribute) {
super(name);
this.attribute = attribute;
}
@Override
public ServiceConfigurator configure(OperationContext context, ModelNode model) throws OperationFailedException {
this.identifier = this.attribute.resolveModelAttribute(context, model).asString();
return this;
}
@Override
public ServiceBuilder build(ServiceTarget target) {
ServiceBuilder builder = target.addService(this.getServiceName());
Consumer module = builder.provides(this.getServiceName());
this.loader = builder.requires(Services.JBOSS_SERVICE_MODULE_LOADER);
Service service = new FunctionalService<>(module, Function.identity(), this);
return builder.setInstance(service);
}
@Override
public Module get() {
try {
return this.loader.get().loadModule(this.identifier);
} catch (ModuleLoadException e) {
throw new IllegalArgumentException(e);
}
}
}