/*
* This file is part of LibrePlan
*
* Copyright (C) 2009-2010 Fundación para o Fomento da Calidade Industrial e
* Desenvolvemento Tecnolóxico de Galicia
* Copyright (C) 2010-2011 Igalia, S.L.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.libreplan.business.calendars.entities;
import static java.util.Arrays.asList;
import static org.libreplan.business.workingday.EffortDuration.max;
import static org.libreplan.business.workingday.EffortDuration.min;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.apache.commons.lang.Validate;
import org.joda.time.LocalDate;
import org.libreplan.business.workingday.EffortDuration;
import org.libreplan.business.workingday.IntraDayDate.PartialDay;
import org.libreplan.business.workingday.ResourcesPerDay;
public abstract class CombinedWorkHours implements ICalendar {
private final List<ICalendar> calendars;
public CombinedWorkHours(Collection<? extends ICalendar> calendars) {
Validate.notNull(calendars);
Validate.isTrue(!calendars.isEmpty());
this.calendars = notNull(calendars);
Validate.isTrue(!this.calendars.isEmpty(),
"there should be at least one workHours not null");
}
private static List<ICalendar> notNull(
Collection<? extends ICalendar> calendars) {
List<ICalendar> result = new ArrayList<ICalendar>();
for (ICalendar each : calendars) {
if (each != null) {
result.add(each);
}
}
return result;
}
public static CombinedWorkHours minOf(ICalendar... workHours) {
Validate.notNull(workHours);
return new Min(asList(workHours));
}
public static CombinedWorkHours maxOf(ICalendar... workHours) {
return maxOf(asList(workHours));
}
public static CombinedWorkHours maxOf(
Collection<? extends ICalendar> calendars) {
return new Max(calendars);
}
@Override
public EffortDuration getCapacityOn(PartialDay day) {
EffortDuration current = null;
for (ICalendar workHour : calendars) {
current = current == null ? workHour.getCapacityOn(day)
: updateCapacity(current, workHour.getCapacityOn(day));
}
return current;
}
@Override
public EffortDuration asDurationOn(PartialDay day, ResourcesPerDay amount) {
EffortDuration result = null;
for (ICalendar each : calendars) {
result = result == null ? each.asDurationOn(day, amount)
: updateDuration(result, each.asDurationOn(day, amount));
}
return result;
}
@Override
public Capacity getCapacityWithOvertime(LocalDate day) {
Capacity result = null;
for (ICalendar each : calendars) {
Capacity current = each.getCapacityWithOvertime(day);
result = result == null ? current : updateCapacity(result, current);
}
return result;
}
@Override
public AvailabilityTimeLine getAvailability() {
AvailabilityTimeLine result = AvailabilityTimeLine.allValid();
for (ICalendar each : calendars) {
result = compoundAvailability(result, each.getAvailability());
}
return result;
}
protected abstract AvailabilityTimeLine compoundAvailability(
AvailabilityTimeLine accumulated, AvailabilityTimeLine each);
protected abstract EffortDuration updateDuration(EffortDuration current,
EffortDuration each);
protected abstract EffortDuration updateCapacity(EffortDuration current,
EffortDuration each);
protected abstract Capacity updateCapacity(Capacity a, Capacity current);
@Override
public boolean thereAreCapacityFor(AvailabilityTimeLine availability,
ResourcesPerDay resourcesPerDay, EffortDuration durationToAllocate) {
return ThereAreHoursOnWorkHoursCalculator.thereIsAvailableCapacityFor(
this, availability, resourcesPerDay, durationToAllocate)
.thereIsCapacityAvailable();
}
}
class Min extends CombinedWorkHours {
public Min(List<ICalendar> calendars) {
super(calendars);
}
@Override
protected EffortDuration updateCapacity(EffortDuration current,
EffortDuration each) {
return Collections.min(asList(current, each));
}
@Override
protected EffortDuration updateDuration(EffortDuration current,
EffortDuration each) {
return min(current, each);
}
@Override
protected AvailabilityTimeLine compoundAvailability(
AvailabilityTimeLine accumulated, AvailabilityTimeLine each) {
return accumulated.and(each);
}
@Override
protected Capacity updateCapacity(Capacity accumulated, Capacity current) {
return Capacity.min(accumulated, current);
}
}
class Max extends CombinedWorkHours {
public Max(Collection<? extends ICalendar> calendars) {
super(calendars);
}
@Override
protected EffortDuration updateCapacity(EffortDuration current,
EffortDuration each) {
return Collections.max(asList(current, each));
}
@Override
protected EffortDuration updateDuration(EffortDuration current,
EffortDuration each) {
return max(current, each);
}
@Override
protected AvailabilityTimeLine compoundAvailability(
AvailabilityTimeLine accumulated, AvailabilityTimeLine each) {
return accumulated.or(each);
}
@Override
protected Capacity updateCapacity(Capacity accumulated, Capacity current) {
return Capacity.max(accumulated, current);
}
}