/*
* 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.clustering.service;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.service.ValueService;
import org.jboss.msc.value.InjectedValue;
/**
* Builds an alias to another service.
* @author Paul Ferraro
* @param <T> the type of the target service
*/
public class AliasServiceBuilder<T> implements Builder<T> {
private final InjectedValue<T> value = new InjectedValue<>();
private final ServiceName name;
private final ServiceName targetName;
private final Class<T> targetClass;
/**
* Constructs a new builder
* @param name the target service name
* @param targetName the target service
* @param targetClass the target service class
*/
public AliasServiceBuilder(ServiceName name, ServiceName targetName, Class<T> targetClass) {
this.name = name;
this.targetName = targetName;
this.targetClass = targetClass;
}
@Override
public ServiceName getServiceName() {
return this.name;
}
@Override
public ServiceBuilder<T> build(ServiceTarget target) {
return target.addService(this.name, new ValueService<>(this.value))
.addDependency(this.targetName, this.targetClass, this.value)
.setInitialMode(ServiceController.Mode.PASSIVE);
}
}