/**
* This file is part of CloudML [ http://cloudml.org ]
*
* Copyright (C) 2012 - SINTEF ICT
* Contact: Franck Chauvel <franck.chauvel@sintef.no>
*
* Module: root
*
* CloudML 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 3 of
* the License, or (at your option) any later version.
*
* CloudML 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 CloudML. If not, see
* <http://www.gnu.org/licenses/>.
*/
package org.cloudml.core.actions;
import org.cloudml.core.*;
import static org.cloudml.core.builders.Commons.*;
public class Provision extends AbstractAction<ComponentInstance<? extends Component>> {
private final Component type;
public Provision(StandardLibrary library, Component type) {
super(library);
this.type = rejectIfInvalid(type);
}
private Component rejectIfInvalid(Component type) {
if (type == null) {
throw new IllegalArgumentException("'null' is not a valid component type for provisioning!");
}
return type;
}
@Override
public ComponentInstance<? extends Component> applyTo(Deployment deployment) {
final String name = getLibrary().createUniqueComponentInstanceName(deployment, type);
if (type.isExternal()) {
ExternalComponent external = type.asExternal();
if (external.isVM()) {
aVMInstance()
.named(name)
.ofType(type.getName())
.integrateIn(deployment);
}
else {
anExternalComponentInstance()
.named(name)
.ofType(external.getName())
.integrateIn(deployment);
}
}
else {
InternalComponent component = type.asInternal();
ComponentInstance<? extends Component> host = getLibrary().findDestinationFor(deployment, component);
return getLibrary().install(deployment, component, host);
}
return deployment.getComponentInstances().firstNamed(name);
}
}