/*
* Copyright (c) 2012 Data Harmonisation Panel
*
* All rights reserved. This program and the accompanying materials are made
* available 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution. If not, see <http://www.gnu.org/licenses/>.
*
* Contributors:
* HUMBOLDT EU Integrated Project #030962
* Data Harmonisation Panel <http://www.dhpanel.eu>
*/
package eu.esdihumboldt.hale.common.schema.model.impl.internal;
import java.util.HashMap;
import java.util.Map;
import net.jcip.annotations.Immutable;
import eu.esdihumboldt.hale.common.schema.model.GroupPropertyConstraint;
import eu.esdihumboldt.hale.common.schema.model.GroupPropertyDefinition;
import eu.esdihumboldt.hale.common.schema.model.constraint.ConstraintUtil;
import eu.esdihumboldt.hale.common.schema.model.impl.AbstractDefinition;
import eu.esdihumboldt.hale.common.schema.model.impl.AbstractGroupPropertyDecorator;
import eu.esdihumboldt.hale.common.schema.model.impl.AbstractPropertyDecorator;
/**
* Decorator for {@link GroupPropertyDefinition}s that overrides given
* constraints.
*
* @author Simon Templer
*/
@Immutable
public class ConstraintOverrideGroupProperty extends AbstractGroupPropertyDecorator {
private final AbstractDefinition<GroupPropertyConstraint> constraints;
/**
* Create a decorator for the given group property where the given
* constraints override the constraints of the group.
*
* @param property the property to decorate
* @param constraints the overriding constraints
*/
public ConstraintOverrideGroupProperty(GroupPropertyDefinition property,
GroupPropertyConstraint... constraints) {
super(property);
this.constraints = new AbstractDefinition<GroupPropertyConstraint>(property.getName()) {
// empty implementation
};
// add constraints
for (GroupPropertyConstraint constraint : constraints) {
this.constraints.setConstraint(constraint);
}
}
/**
* @see AbstractPropertyDecorator#getConstraint(Class)
*/
@Override
public <T extends GroupPropertyConstraint> T getConstraint(Class<T> constraintType) {
// return overriding constraint if present
if (constraints.hasConstraint(constraintType)) {
return constraints.getConstraint(constraintType);
}
return super.getConstraint(constraintType);
}
@Override
public Iterable<GroupPropertyConstraint> getExplicitConstraints() {
// maps constraint types to constraints
Map<Class<?>, GroupPropertyConstraint> constraintMap = new HashMap<>();
// add all explicit constraints from decoratee
for (GroupPropertyConstraint constraint : super.getExplicitConstraints()) {
constraintMap.put(ConstraintUtil.getConstraintType(constraint.getClass()), constraint);
}
// replace with override constraints
for (GroupPropertyConstraint constraint : constraints.getExplicitConstraints()) {
constraintMap.put(ConstraintUtil.getConstraintType(constraint.getClass()), constraint);
}
return constraintMap.values();
}
}