/**
* 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;
import org.cloudml.core.util.OwnedBy;
import org.cloudml.core.validation.Report;
import org.cloudml.core.visitors.Visitor;
public class RelationshipInstance extends WithResources implements DeploymentElement, OwnedBy<Deployment> {
private final OptionalOwner<Deployment> owner;
private RequiredPortInstance requiredEnd;
private ProvidedPortInstance providedEnd;
private Relationship type;
public RelationshipInstance(String name, RequiredPortInstance requiredEnd, ProvidedPortInstance providedEnd, Relationship type) {
super(name);
this.owner = new OptionalOwner<Deployment>();
setRequiredEnd(requiredEnd);
setProvidedEnd(providedEnd);
setType(type);
}
@Override
public Deployment getDeployment() {
return getOwner().get();
}
@Override
public String getQualifiedName() {
return String.format("%s%s%s", getOwner().getName(), CONTAINED, getName());
}
@Override
public OptionalOwner<Deployment> getOwner() {
return owner;
}
@Override
public void accept(Visitor visitor) {
visitor.visitRelationshipInstance(this);
}
@Override
public void validate(Report report) {
validateRequiredEnd(report);
validateProvidedEnd(report);
}
private void validateRequiredEnd(Report report) {
if (!requiredEnd.getType().equals(type.getRequiredEnd())) {
final String message = String.format(
"illegal relationship '%s' instance that does not match its type (required port found '%s' but expected '%s')",
getName(),
requiredEnd.getType().getName(),
type.getRequiredEnd().getName());
report.addError(message);
}
}
private void validateProvidedEnd(Report report) {
if (!providedEnd.getType().equals(type.getProvidedEnd())) {
final String message = String.format(
"illegal relationship instance '%s' that does not match its type (provided port found '%s' but expected '%s')",
getName(),
providedEnd.getType().getQualifiedName(),
type.getProvidedEnd().getQualifiedName());
report.addError(message);
}
}
public final void setRequiredEnd(RequiredPortInstance port) {
if (port == null) {
final String error = String.format("'null' is not a valid required port end for relationship '%s'", getQualifiedName());
throw new IllegalArgumentException(error);
}
this.requiredEnd = port;
}
public final void setProvidedEnd(ProvidedPortInstance port) {
if (port == null) {
final String error = String.format("'null' is not a valid provided port end for relationship '%s'", getQualifiedName());
throw new IllegalArgumentException(error);
}
this.providedEnd = port;
}
public RequiredPortInstance getRequiredEnd() {
return this.requiredEnd;
}
public InternalComponentInstance getClientComponent() {
return (InternalComponentInstance) getRequiredEnd().getOwner().get();
}
public ProvidedPortInstance getProvidedEnd() {
return this.providedEnd;
}
public ComponentInstance<? extends Component> getServerComponent() {
return getProvidedEnd().getOwner().get();
}
public boolean isProvidedBy(ComponentInstance<? extends Component> candidateServer) {
return getServerComponent().equals(candidateServer);
}
public boolean isRequiredBy(ComponentInstance<? extends Component> candidateClient) {
return getClientComponent().equals(candidateClient);
}
public boolean eitherEndIs(PortInstance<? extends Port> port) {
return getProvidedEnd().equals(port) || getRequiredEnd().equals(port);
}
public Relationship getType() {
return type;
}
private void setType(Relationship type) {
if (type == null) {
final String error = String.format("'null' is not a valid relationship type for '%s'", getQualifiedName());
throw new IllegalArgumentException(error);
}
this.type = type;
}
@Override
public String toString() {
return requiredEnd + "->" + providedEnd;
}
@Override
public boolean equals(Object other) {
if (other instanceof RelationshipInstance) {
RelationshipInstance otherBinding = (RelationshipInstance) other;
return (
((requiredEnd == null && otherBinding.getRequiredEnd() == null) || requiredEnd.equals(otherBinding.getRequiredEnd())) &&
((providedEnd == null && otherBinding.getProvidedEnd() == null) || providedEnd.equals(otherBinding.getProvidedEnd()))
);
}
else {
return false;
}
}
}