/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* 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.optaplanner.examples.meetingscheduling.domain;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import org.apache.commons.lang3.text.WordUtils;
import org.optaplanner.core.api.domain.entity.PlanningEntity;
import org.optaplanner.core.api.domain.variable.PlanningVariable;
import org.optaplanner.examples.common.domain.AbstractPersistable;
@PlanningEntity()
@XStreamAlias("MsMeetingAssignment")
public class MeetingAssignment extends AbstractPersistable {
private Meeting meeting;
// Planning variables: changes during planning, between score calculations.
private TimeGrain startingTimeGrain;
private Room room;
public Meeting getMeeting() {
return meeting;
}
public void setMeeting(Meeting meeting) {
this.meeting = meeting;
}
@PlanningVariable(valueRangeProviderRefs = {"timeGrainRange"})
public TimeGrain getStartingTimeGrain() {
return startingTimeGrain;
}
public void setStartingTimeGrain(TimeGrain startingTimeGrain) {
this.startingTimeGrain = startingTimeGrain;
}
@PlanningVariable(valueRangeProviderRefs = {"roomRange"})
public Room getRoom() {
return room;
}
public void setRoom(Room room) {
this.room = room;
}
// ************************************************************************
// Complex methods
// ************************************************************************
public int calculateOverlap(MeetingAssignment other) {
if (startingTimeGrain == null || other.getStartingTimeGrain() == null) {
return 0;
}
int start = startingTimeGrain.getGrainIndex();
int end = start + meeting.getDurationInGrains();
int otherStart = other.startingTimeGrain.getGrainIndex();
int otherEnd = otherStart + other.meeting.getDurationInGrains();
if (end < otherStart) {
return 0;
} else if (otherEnd < start) {
return 0;
}
return Math.min(end, otherEnd) - Math.max(start, otherStart);
}
public Integer getLastTimeGrainIndex() {
if (startingTimeGrain == null) {
return null;
}
return startingTimeGrain.getGrainIndex() + meeting.getDurationInGrains() - 1;
}
public String getStartingDateTimeString() {
if (startingTimeGrain == null) {
return null;
}
return startingTimeGrain.getDateTimeString();
}
public int getRoomCapacity() {
if (room == null) {
return 0;
}
return room.getCapacity();
}
public int getRequiredCapacity() {
return meeting.getRequiredCapacity();
}
public String getLabel() {
int wrapLength = Math.max(8 * meeting.getDurationInGrains(), 16);
return "<html><center>" + WordUtils.wrap(meeting.getTopic(), wrapLength, "<br/>", false) + "</center></html>";
}
@Override
public String toString() {
return meeting.toString();
}
}