/**
* 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 java.util.ArrayList;
import java.util.List;
import org.cloudml.core.Relationship;
import org.cloudml.core.RequiredPortInstance;
import org.cloudml.core.Deployment;
public class FindRelationship extends AbstractFind<Relationship> {
private final RequiredPortInstance requiredPort;
public FindRelationship(StandardLibrary library, RequiredPortInstance clientPort) {
super(library);
this.requiredPort = clientPort;
}
@Override
protected List<Relationship> collectCandidates(Deployment deployment) {
final ArrayList<Relationship> candidates = new ArrayList<Relationship>();
for (Relationship binding : deployment.getRelationships()) {
if (isRelevant(requiredPort, binding)) {
candidates.add(binding);
}
}
return candidates;
}
@Override
protected void handleLackOfCandidate(Deployment deployment, List<Relationship> candidates) {
final String message = String.format(
"Unable to find any relevant relationship type for client port '%s' of type '%s'",
requiredPort.getQualifiedName(),
requiredPort.getType().getQualifiedName());
throw new IllegalStateException(message);
}
private boolean isRelevant(RequiredPortInstance requiredPort, Relationship relationship) {
return relationship.getRequiredEnd().equals(requiredPort.getType())
&& !isExcluded(relationship);
}
protected boolean isExcluded(Relationship binding) {
return false;
}
}