/*
* Copyright 2011 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.planner.core.domain.variable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Set;
import org.drools.planner.api.domain.entity.PlanningEntity;
import org.drools.planner.api.domain.variable.ValueRange;
import org.drools.planner.core.domain.entity.PlanningEntityDescriptor;
public abstract class AbstractPlanningValueRangeDescriptor implements PlanningValueRangeDescriptor {
protected PlanningVariableDescriptor variableDescriptor;
protected boolean excludeUninitializedPlanningEntity; // TODO make this compatible with PlanningVariable.uninitializedEntityFilter and use a SelectionFilter
public AbstractPlanningValueRangeDescriptor(PlanningVariableDescriptor variableDescriptor) {
this.variableDescriptor = variableDescriptor;
}
protected void processExcludeUninitializedPlanningEntity(ValueRange valueRangeAnnotation) {
excludeUninitializedPlanningEntity = valueRangeAnnotation.excludeUninitializedPlanningEntity();
if (excludeUninitializedPlanningEntity) {
Class<?> variablePropertyType = variableDescriptor.getVariablePropertyType();
Set<Class<?>> entityClassSet = variableDescriptor.getPlanningEntityDescriptor().getSolutionDescriptor()
.getPlanningEntityClassSet();
boolean assignableFrom = false;
for (Class<?> entityClass : entityClassSet) {
if (variablePropertyType.isAssignableFrom(entityClass)) {
assignableFrom = true;
break;
}
}
if (!assignableFrom) {
throw new IllegalArgumentException("The planningEntityClass ("
+ variableDescriptor.getPlanningEntityDescriptor().getPlanningEntityClass()
+ ") has a PlanningVariable annotated property (" + variableDescriptor.getVariableName()
+ ") with excludeUninitializedPlanningEntity (true), but there is no planning entity class"
+ " that extends the variablePropertyType (" + variablePropertyType + ").");
}
}
}
protected Collection<?> applyFiltering(Collection<?> values) {
if (!excludeUninitializedPlanningEntity) {
return values;
}
// TODO HACK remove me and replace by SelectionFilter
Collection<Object> filteredValues = new ArrayList<Object>(values.size());
for (Object value : values) {
if (value.getClass().isAnnotationPresent(PlanningEntity.class)) {
PlanningEntityDescriptor entityDescriptor = variableDescriptor.getPlanningEntityDescriptor()
.getSolutionDescriptor().getPlanningEntityDescriptor(value.getClass());
if (entityDescriptor == null) {
throw new IllegalArgumentException("The planningEntityClass ("
+ variableDescriptor.getPlanningEntityDescriptor().getPlanningEntityClass()
+ ") has a PlanningVariable annotated property ("
+ variableDescriptor.getVariableName()
+ ") with excludeUninitializedPlanningEntity (true),"
+ " but a planning value class (" + value.getClass()
+ ") annotated with PlanningEntity is a non configured as a planning entity.");
}
if (entityDescriptor.isInitialized(value)) {
filteredValues.add(value);
}
}
}
return filteredValues;
}
public boolean isValuesCacheable() {
return false;
}
}